Are athletes really getting faster, better, stronger? | David Epstein

6,911,922 views ・ 2014-04-29

TED


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Translator: Ereblir Kadriu Reviewer: Iris Xholi
00:12
The Olympic motto is "Citius, Altius, Fortius."
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Moto e lojerave Olimpike eshte "Citius, Altius, Fortius"
00:16
Faster, Higher, Stronger.
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Me shpejte, me larte, me forte.
00:18
And athletes have fulfilled that motto rapidly.
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Dhe atletet kane permbushur ate moto shume shpejt
00:22
The winner of the 2012 Olympic marathon
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Fituesi i maratones Oplimpike te 2012
00:25
ran two hours and eight minutes.
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vrapoi dy ore e tete minuta.
00:28
Had he been racing against the winner
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Ne do ishte duke garuar kunder fituesit
00:29
of the 1904 Olympic marathon,
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te maratones Olimpike te vitit 1904,
00:32
he would have won by nearly an hour and a half.
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ai do te kishte fituar me afer nje ore e gjysme.
00:35
Now we all have this feeling
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Tani te gjithe ne e kemi kete ndjenje
00:37
that we're somehow just getting better
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se jemi duke u bere me te mire
00:39
as a human race, inexorably progressing,
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si qenie njerzore, duke perparuar ne menyre te pandalshme
00:41
but it's not like we've evolved into a new species
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por nuk eshte se kemi evoluar ne qenie te reja
00:43
in a century.
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brenda nje shekulli.
00:44
So what's going on here?
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Pra, cka po ndodh ketu?
00:47
I want to take a look at what's really behind
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Dua te shikoj se c'fshihet pertej ketij
00:48
this march of athletic progress.
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marshimi te zhvillimit te atletikes.
00:51
In 1936, Jesse Owens
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Ne 1936, Jesse Owens
00:53
held the world record in the 100 meters.
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mbajti rekordin botëror në 100 metra.
00:56
Had Jesse Owens been racing last year
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Nese do merrte pjese ne kampionatin boteror vitin e kaluar 100 metersh
00:58
in the world championships of the 100 meters,
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ne garen e 100 metershit,
01:01
when Jamaican sprinter Usain Bolt finished,
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kur sprinteri xhamaikan Usain Bolt e perfundoi,
01:03
Owens would have still had 14 feet to go.
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Owrns kishte akoma 14 hapa per te vrapuar.
01:07
That's a lot in sprinter land.
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Kjo do te thote shume per sprint.
01:09
To give you a sense of how much it is,
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Per t'ju treguar se sa shume eshte,
01:10
I want to share with you a demonstration
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une dua te ndaj me ju nje demonstrim
01:12
conceived by sports scientist Ross Tucker.
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te konceptuar nga sportisti Ross Tucker.
01:15
Now picture the stadium last year
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Tani, imagjinoni stadiumin vitin qe kaloi
01:17
at the world championships of the 100 meters:
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ne kampionation boteror te 100 metershit:
01:20
thousands of fans waiting with baited breath
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mijera fansa duke pritur
01:22
to see Usain Bolt, the fastest man in history;
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per te pare Usain Bolt, njeriun me te shpejte ne histori;
01:26
flashbulbs popping as the nine fastest men in the world
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nente burrat me te shpejte ne bote
01:28
coil themselves into their blocks.
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rrotullohen ne blloqet e tyre.
01:31
And I want you to pretend
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Dua qe te pretendoni
01:32
that Jesse Owens is in that race.
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se Jesse Owens eshte ne ate gare.
01:34
Now close your eyes for a second and picture the race.
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Tani mbyllni syte per disa sekonda dhe paraperfytyroni garen.
01:38
Bang! The gun goes off.
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Krisme! Arma shkrepet.
01:39
An American sprinter jumps out to the front.
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Nje sprinter Amerikan kercen ne fillim.
01:41
Usain Bolt starts to catch him.
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Usian Bolt fillon qe ta arrije ate.
01:43
Usain Bolt passes him, and as the runners come to the finish,
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Usain Bolt e kalon ate, dhe ndersa vrapuesit mbrrijne te fundi,
01:45
you'll hear a beep as each man crosses the line.
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ju do te degjoni nje bip ku secili garues kalon nje pjese.
01:48
(Beeps)
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(Bip)
01:49
That's the entire finish of the race.
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Kjo eshte pjesa e plote e gares.
01:52
You can open your eyes now.
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Mund te hapni syte tani.
01:54
That first beep was Usain Bolt.
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Bip i pare ishte Usain Bolt.
01:56
That last beep was Jesse Owens.
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Bip i fundit ishte Jesse Owens.
01:59
Listen to it again.
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Degjoni perseri ate.
02:01
(Beeps)
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(Bip)
02:03
When you think of it like that,
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Tek e mendoni keshtu,
02:04
it's not that big a difference, is it?
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nuk eshte ndonje diference e madhe, apo jo?
02:06
And then consider that Usain Bolt started
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Dhe duke pasur ne konsiderate se Usain Bolt fillon
02:08
by propelling himself out of blocks
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duke vene ne levzije veten e tij
02:11
down a specially fabricated carpet
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poshte nje qilimi posacerisht te fabikuar
02:13
designed to allow him to travel
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i dizejnuar per te lejuar ate te vrapoj
02:15
as fast as humanly possible.
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aq shpejt sa njerezisht eshte e mundur.
02:17
Jesse Owens, on the other hand,
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Jesse Owens ne anen tjeter,
02:19
ran on cinders, the ash from burnt wood,
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vrapon ne shkrumbë, hi nga druri i djegur,
02:22
and that soft surface stole far more energy
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dhe ajo siperfaqe e bute i shpenzon shume me shume energji
02:24
from his legs as he ran.
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kemebeve te tij ndersa vraponte.
02:26
Rather than blocks, Jesse Owens had a gardening trowel
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Pervec blloqeve, Jesse Owens kish nje peshqir kopeshti
02:29
that he had to use to dig holes in the cinders to start from.
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qe iu desh ta perdorte per te germuar gropa ne menyre qe te niste.
02:33
Biomechanical analysis of the speed
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Analizat biomekanike te shpejtesise
02:35
of Owens' joints shows that had been running
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se nyjeve te Owens tregojne se nese do kish qene duke vrapuar
02:38
on the same surface as Bolt,
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ne te njejten siperfaqe sikurse Bolt,
02:39
he wouldn't have been 14 feet behind,
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ai nuk do të kishte qenë 14 metra prapa,
02:42
he would have been within one stride.
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ai do te kishte qene brenda te njejtes vije.
02:44
Rather than the last beep,
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Ne vend te sinjalit te fundit,
02:46
Owens would have been the second beep.
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Owens do te kishte qene bipi i dyte.
02:49
Listen to it again.
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Degjojeni edhe nje here.
02:51
(Beeps)
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(Bip)
02:52
That's the difference track surface technology has made,
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Kjo eshte diferenca qe ka bere tknologjia me pisten,
02:55
and it's done it throughout the running world.
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dhe eshte e bere ne te gjitha pistat e botes.
02:57
Consider a longer event.
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Konsideroni nje ngjarje me te gjate.
02:59
In 1954, Sir Roger Bannister
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Ne 1954, Sir Roger Bannisiter
03:02
became the first man to run under four minutes in the mile.
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u be personi i pare i cili vrapoi nen kater minuta per nje milje.
03:05
Nowadays, college kids do that every year.
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Ditet e sotme, studentet e universitetit e bejne ate cdo vit.
03:08
On rare occasions, a high school kid does it.
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Ne raste te rralla edhe nje nxnes i shkolles se mesme mund ta beje.
03:11
As of the end of last year,
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Deri në fund të vitit të kaluar,
03:12
1,314 men
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1.314 burra
03:15
had run under four minutes in the mile,
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kishin vrapuar nen kater minuta per milje,
03:17
but like Jesse Owens,
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por sikur Jesses Owens,
03:18
Sir Roger Bannister ran on soft cinders
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Sir Roger Bannister vrapoi ne hi te bute
03:21
that stole far more energy from his legs
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dhe kjo i harxhoi me shume energji kembeve te tij
03:23
than the synthetic tracks of today.
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sesa bejne pistat sintektike te sotme.
03:25
So I consulted biomechanics experts
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Keshtu une konsultova ekspertet e biomekanikes
03:27
to find out how much slower it is to run on cinders
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per te zbuluar sa me ngadale vrapohet ne hi
03:29
than synthetic tracks,
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sesa ne pista sintetike,
03:31
and their consensus that it's one and a half percent slower.
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dhe konsensusi i tyre ishte nje perqind e gjysem me ngadale.
03:34
So if you apply a one and a half percent slowdown conversion
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Pra nese aplikoni nje perqind e gjysme te shendrrimit te ngadalshem
03:37
to every man who ran his sub-four mile
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per secilin person qe vrapon kater milje
03:39
on a synthetic track,
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ne nje piste sintetike,
03:41
this is what happens.
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kjo eshte ajo cka ndodh.
03:43
Only 530 are left.
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Kane mbetur vetem 530.
03:45
If you look at it from that perspective,
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Nese e shikoni nga kjo perspektive,
03:46
fewer than ten new men per [year]
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me pak se dhjete ne vit
03:49
have joined the sub-four mile club
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i jane bashkuar klubit te nen- kater milje
03:50
since Sir Roger Bannister.
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që nga Sir Roger Bannister.
03:52
Now, 530 is a lot more than one,
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Tani, 530 eshte me shume sesa nje,
03:55
and that's partly because there are many more people
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03:57
training today and they're training more intelligently.
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qe trajnohen sot dhe jane duke u trajnuar me me inteligjence.
04:00
Even college kids are professional in their training
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Edhe femijet e koelgjit jane profesionist ne trajnimet e tyre
04:02
compared to Sir Roger Bannister,
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te krahasuar ndaj Sir Roger Bannister,
04:03
who trained for 45 minutes at a time
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i cili trajnohej per 45 minuta
04:05
while he ditched gynecology lectures in med school.
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qe ishte larguar nga leksionet e gjinekologjise ne shkollen e mjeksise.
04:08
And that guy who won the 1904 Olympic marathon
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Dhe ai djali i cili fitoi maratonen olimpike te 1904
04:10
in three in a half hours,
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ne tre ore e gjysme,
04:12
that guy was drinking rat poison and brandy
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ai djale ishte duke pire helm miu dhe raki
04:14
while he ran along the course.
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pederisa vraponte ne piste.
04:16
That was his idea of a performance-enhancing drug.
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Kjo ishte idea e performances se tij.
04:19
(Laughter)
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(Buzeqeshje)
04:21
Clearly, athletes have gotten more savvy
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Duket qarte, se atletet jane bere me te pjekur sot
04:22
about performance-enhancing drugs as well,
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rreth ilaceve qe rrisin perfromancen,
04:25
and that's made a difference in some sports at some times,
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dhe kjo ka bere ndryshimin ne disa sporte disa here,
04:27
but technology has made a difference in all sports,
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por teknologjia ka bere ndryshim ne te gjitha sportet,
04:30
from faster skis to lighter shoes.
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nga ski me te shpejta tek kepucet e lehta.
04:32
Take a look at the record for the 100-meter freestyle swim.
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Hidhni një sy të dhënave për stilin e lirë not ne 100-metër.
04:35
The record is always trending downward,
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Rekordi gjithmone eshte duke pesuar renie,
04:38
but it's punctuated by these steep cliffs.
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por eshte nderprere nga keto shkembinj te thikte.
04:41
This first cliff, in 1956, is the introduction
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Shkembi i pare, ne 1956, eshte hyrja
04:44
of the flip turn.
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rrokullisese.
04:45
Rather than stopping and turning around,
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Ne vend se te ndaleni dhe ktheni,
04:47
athletes could somersault under the water
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atletet mund te kaperdinje nen uje
04:49
and get going right away in the opposite direction.
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dhe te shkojne menjehere ne drejtimin e kundert.
04:51
This second cliff, the introduction of gutters
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Shkembi i dyte, eshte prezantimi i kanalit
04:54
on the side of the pool
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ne anen tjeter te pishines,
04:55
that allows water to splash off,
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qe e lejon ujin te sperkat,
04:57
rather than becoming turbulence
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ne vend se te bej turbulenca
04:58
that impedes the swimmers as they race.
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qe ti pengonte notuesit ndersa garojne.
05:01
This final cliff,
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Ky shkemb i fundit,
05:02
the introduction of full-body
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futja e rrobave te banjes trup tere trupit
05:03
and low-friction swimsuits.
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dhe me ferkim te ulet.
05:05
Throughout sports, technology has changed the face of performance.
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Permes sportit, teknologjia ka ndryshuar formen e performances.
05:09
In 1972, Eddy Merckx set the record
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Ne 1972, Eddy Merckx vendosi rekordin
05:12
for the longest distance cycled in one hour
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për distancë më të gjatë të cilklizmit në një orë
05:14
at 30 miles, 3,774 feet.
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në 30 milje, 3774 metra.
05:18
Now that record improved and improved
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Tani ai rekord sa vjen e permiresohet
05:20
as bicycles improved and became more aerodynamic
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teksa biçikletat u permiresun dhe u bene me aerodinamike
05:23
all the way until 1996,
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gjate tere 1996,
05:25
when it was set at 35 miles, 1,531 feet,
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ku u vendos per 35 milje, 1,531 metra,
05:29
nearly five miles farther
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aferisht pese milje me larg
05:32
than Eddy Merckx cycled in 1972.
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sesa Eddy Merckx ne vitin 1972.
05:35
But then in 2000, the International Cycling Union
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Por më pas në vitin 2000, Bashkimi Ndërkombëtar i Ciklizmit
05:38
decreed that anyone who wanted to hold that record
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dha urdher se kushdo qe deshiron te mbaj ate rekord
05:41
had to do so with essentially the same equipment
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duhej ta bente me pajisjet e njejta thelbesore
05:44
that Eddy Merckx used in 1972.
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qe Eddy Mercks perdori ne 1972.
05:46
Where does the record stand today?
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Ku qendron rekordi sot?
05:49
30 miles, 4,657 feet,
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30 milje, 4,657 metra,
05:52
a grand total of 883 feet
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ne nje total prej 883 metra
05:55
farther than Eddy Merckx cycled
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me shume sesa Eddy Mercks kreu nje cikel
05:57
more than four decades ago.
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me shume sesa kater dekada me pare.
05:59
Essentially the entire improvement in this record
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Ne thelb, i gjithe permiresimi ne kete ne kete regjistrim
06:01
was due to technology.
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ishte per shkak te teknologjise.
06:03
Still, technology isn't the only thing pushing athletes forward.
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Megjithatë, teknologjia nuk është e vetmja gjë qe i shtyn atletët përpara.
06:07
While indeed we haven't evolved
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Ndërsa në të vërtetë ne nuk kemi evoluar
06:08
into a new species in a century,
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në një specie të re në një shekull,
06:10
the gene pool within competitive sports
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pishina gjenetike e sporteve konkuruese
06:12
most certainly has changed.
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me siguri ka ndryshuar.
06:14
In the early half of the 20th century,
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Ne gjysmen e pare te shekullit 20,
06:16
physical education instructors and coaches
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instruktore te edukimit fizike dhe trajneret
06:18
had the idea that the average body type
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paten idene se mesatarja e tipit te trupit
06:20
was the best for all athletic endeavors:
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ishte me e mira per te gjithe llojet e sportit:
06:22
medium height, medium weight, no matter the sport.
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gjatesi mesatre, peshe mesatare, pavarsisht sportit.
06:26
And this showed in athletes' bodies.
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Dhe kjo u tregua ne trupat e atleteve.
06:28
In the 1920s, the average elite high-jumper
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Ne 1920, mesatraja e elites ne kercim se larti
06:30
and average elite shot-putter were the same exact size.
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dhe mesatarje e elites ne flakjen se gjyles ishin te se njejtes madhesi.
06:34
But as that idea started to fade away,
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Por pasi idea filloj te venitej,
06:35
as sports scientists and coaches realized that
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pasi shkenctaret e sportit dhe trajneret kuptuan se
06:38
rather than the average body type,
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ne vend te mesatres se tipit te trupit,
06:39
you want highly specialized bodies
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ajo qe duhej ishin trupa te specializuara
06:41
that fit into certain athletic niches,
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qe pershtaten per sporte te caktuar,
06:43
a form of artificial selection took place,
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nje forme e re perzgjedhjeje artificiale zuri vend,
06:46
a self-sorting for bodies that fit certain sports,
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nje vet-perzgjedhje per trupa qe i pershtaten sporteve te caktuara,
06:48
and athletes' bodies became more different from one another.
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dhe trupat e atleteve u bene me te ndryshem nga njeri tjetri.
06:51
Today, rather than the same size as the average elite high jumper,
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Sot, me shume sesa madhesia e njejte sesa mesatraj e elites se kercim se lartit
06:55
the average elite shot-putter
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mesatarja e elites se flakjes se gjyles
06:56
is two and a half inches taller
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eshte dy inq e gjysme m e gjate
06:58
and 130 pounds heavier.
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dhe 130 pund me e rende.
07:01
And this happened throughout the sports world.
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Dhe kjo gje ka ndodhur me te gjitha sportet e botes.
07:03
In fact, if you plot on a height versus mass graph
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Ne fakt, nese hartoni lartesine kundrejt grafikes se mases
07:05
one data point for each of two dozen sports
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nje te dhene per te dyja sportet
07:08
in the first half of the 20th century, it looks like this.
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ne gjysem e pare te shekullit 20-te, duket keshtu.
07:11
There's some dispersal,
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Ka disa shpërndarje,
07:13
but it's kind of grouped around that average body type.
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por eshte si grup rreth mesatres se tipit te trupit.
07:16
Then that idea started to go away,
182
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1579
Pastaj ajo ide filloi te largohej,
07:17
and at the same time, digital technology --
183
437639
1701
dhe ne te njejten kohe, teknologjia digjitale--
07:19
first radio, then television and the Internet --
184
439340
2207
radio e pare, pastaj televizioni dhe interneti--
07:21
gave millions, or in some cases billions, of people
185
441547
2377
dha miliona, ose ne disa raste biliona, te njerezve
07:23
a ticket to consume elite sports performance.
186
443924
3179
nje bilete per te shpenzuar performanca sportive te elites.
07:27
The financial incentives and fame and glory afforded elite athletes skyrocketed,
187
447103
3873
Stimujt financiare, fama dhe lavdia i sigurojne atletëve elite te arrijne kulmin,
07:30
and it tipped toward the tiny upper echelon of performance.
188
450976
4193
dhe largoi performancen e klases se larte.
07:35
It accelerated the artificial selection for specialized bodies.
189
455169
3427
Ajo pershpejtoj perzgjedhjen artificiale per trupa te specializuar.
07:38
And if you plot a data point for these same
190
458596
1628
Dhe nese ju hartoni te dhena te njejta
07:40
two dozen sports today, it looks like this.
191
460224
3882
per keto dy sporte sot, do te duket keshtu.
07:44
The athletes' bodies have gotten
192
464106
1427
Trupat e atleteve jane bere
07:45
much more different from one another.
193
465533
2194
shume me ndryshe nga njeri-tjetri.
07:47
And because this chart looks like the charts
194
467727
2109
Dhe per shkak se kjo grafike duket si grafiket
07:49
that show the expanding universe,
195
469836
1731
qe tregojne universin e zgjeruar,
07:51
with the galaxies flying away from one another,
196
471567
2460
me galaksite qe fluturojne nga njera tek tjetra,
07:54
the scientists who discovered it call it
197
474027
1644
shkenctaret te cilet e kane zbuluar ate qe quajne
07:55
"The Big Bang of Body Types."
198
475671
3289
"Big Bengu i tipave te trupit."
07:58
In sports where height is prized, like basketball,
199
478960
2408
Në sport ku lartësia është e çmuar, si basketbolli,
08:01
the tall athletes got taller.
200
481368
1790
atletet e gjate zgjaten me shume.
08:03
In 1983, the National Basketball Association
201
483158
3106
Ne 1983, Asociacioni Kombetar i Basketbollit
08:06
signed a groundbreaking agreement
202
486264
1323
nenshkrujati nje marreveshje inovative
08:07
making players partners in the league,
203
487587
2052
duke i bere lojtaret partner ne lige,
08:09
entitled to shares of ticket revenues
204
489639
1550
duke i dhene aksione ne te ardhurat e biletave
08:11
and television contracts.
205
491189
1907
dhe konratat televizive.
08:13
Suddenly, anybody who could be an NBA player
206
493096
2203
Papritmas, kushdo qe mund te ishte lojtar
08:15
wanted to be,
207
495299
1196
deshironte te behej NBA,
08:16
and teams started scouring the globe
208
496495
1846
dhe ekipet filluan te pastronin boten
08:18
for the bodies that could help them win championships.
209
498341
2280
per trupat qe mund te ndihmonin ata te fitonin kampionatin.
08:20
Almost overnight,
210
500621
1743
Pothuajse brenda natës,
08:22
the proportion of men in the NBA
211
502364
1378
përqindja e njerëzve në NBA
08:23
who are at least seven feet tall doubled
212
503742
1892
të cilët janë të paktën shtatë feet (afer dy metra) te gjate u dyfishuan
08:25
to 10 percent.
213
505634
1765
me 10 përqind.
08:27
Today, one in 10 men in the NBA
214
507399
2023
Sot, nje ne 10 lojtar ne NBA
08:29
is at least seven feet tall,
215
509422
2182
eshte te paketen shtate feet (afer dy metra) i gjate,
08:31
but a seven-foot-tall man is incredibly rare
216
511604
2149
por njeriu shtate feet eshte jashtezakonisht i rralle
08:33
in the general population --
217
513753
1519
ne popullsine e pergjithshme--
08:35
so rare that if you know an American man
218
515272
2650
aq i rralle saqe nese nje Amerikan
08:37
between the ages of 20 and 40
219
517922
1405
ndermjet moshes 20 dhe 40 vjec
08:39
who is at least seven feet tall,
220
519327
2136
i cili eshte te pakten shtate feet i gjate (afer dy metra)
08:41
there's a 17 percent chance
221
521463
1772
ka gjasa 17 perqind gjasa
08:43
he's in the NBA right now.
222
523235
1805
qe ai eshte ne NBA tani.
08:45
(Laughter)
223
525040
2938
(Te qeshura)
08:47
That is, find six honest seven footers,
224
527978
2876
Kjo do te thote, te gjesh gjashte shtatelarte te sinqerte
08:50
one is in the NBA right now.
225
530854
3230
nje prej tyre i ke ne NBA tani.
08:54
And that's not the only way that NBA players' bodies are unique.
226
534084
2829
Dhe kjo nuk eshte arsyeja se trupat e lojtareve te NBA jane unik.
08:56
This is Leonardo da Vinci's "Vitruvian Man,"
227
536913
2615
Ky eshte "Njeriu Vitruvian" i Leonardo Da Vincit
08:59
the ideal proportions,
228
539528
1423
propocionet ideale,
09:00
with arm span equal to height.
229
540951
1999
me gjeresi te krahve te barabarte me gjatesine.
09:02
My arm span is exactly equal to my height.
230
542950
2508
Gjersia e kraheve eshte saktsisht e barabarte me gjatesine time.
09:05
Yours is probably very nearly so.
231
545458
2136
E juaja eshte ndoshta pothuajse gati.
09:07
But not the average NBA player.
232
547594
2162
Por jo ne mesataren e lojtarit te NBA.
09:09
The average NBA player is a shade under 6'7",
233
549756
2807
Mesatarja tek nje lojtari NBA eshte poshte 6'7",
09:12
with arms that are seven feet long.
234
552563
2311
me krahe te cilet jane te gjate 2 metra.
09:14
Not only are NBA players ridiculously tall,
235
554874
2798
Lojtaret e NBA jo vetem qe jane ne menyre qesharake shtatelarte,
09:17
they are ludicrously long.
236
557672
2278
ata ne menyre absurde jane te gjate.
09:19
Had Leonardo wanted to draw
237
559950
1005
A deshironte Leonardo te vizatonte
09:20
the Vitruvian NBA Player,
238
560955
1975
lojtarin Vitruvian te NBA,
09:22
he would have needed a rectangle and an ellipse,
239
562930
1973
ai do të kishte nevojë për një drejtkëndësh dhe një elips,
09:24
not a circle and a square.
240
564903
2782
jo një rreth dhe një katror.
09:27
So in sports where large size is prized,
241
567685
2165
Pra, ne sporte ku madhesia eshte e çmuar,
09:29
the large athletes have gotten larger.
242
569850
2071
atletet e medhenj jane bere me te medhenj.
09:31
Conversely, in sports where diminutive stature is an advantage,
243
571921
2979
Ne anen tjeter, ne sporte ku te qenurit shtat vogel eshte avantazh,
09:34
the small athletes got smaller.
244
574900
2217
atletet e vegjel jane bere me te vegjel.
09:37
The average elite female gymnast
245
577117
1663
Mesatarja e gjimansteve femra elite
09:38
shrunk from 5'3" to 4'9" on average
246
578780
2763
u zvoglua mesatarisht prej 5'3 ne 4'9
09:41
over the last 30 years,
247
581543
1337
gjate 30 viteve te fundit,
09:42
all the better for their power-to-weight ratio
248
582880
2115
e gjitha ne te miren e raportit fuqi- peshe
09:44
and for spinning in the air.
249
584995
1770
dhe e gjitha per rrotullim ne ajer.
09:46
And while the large got larger
250
586765
1362
Dhe perderisa te medhenjt u bene me te medhenj
09:48
and the small got smaller,
251
588127
1364
dhe te vegjelit me te vegjel,
09:49
the weird got weirder.
252
589491
2428
te çuditshmit u bene me te çuditshem.
09:51
The average length of the forearm
253
591919
1550
Gjatesia mesatare e parakrahut
09:53
of a water polo player in relation
254
593469
1751
i nje lojtari polo uji, ne raport
09:55
to their total arm got longer,
255
595220
1857
me kraun ne teresi, eshte zgjatur
09:57
all the better for a forceful throwing whip.
256
597077
2129
e gjitha ne te miren e hedhjes.
09:59
And as the large got larger,
257
599206
1727
Dhe ndersa te medhenjt u bene me te medhenj,
10:00
small got smaller, and the weird weirder.
258
600933
2370
te vegjlit me te vegjel, dhe te çuditshmit me te çuditshem.
10:03
In swimming, the ideal body type
259
603303
2193
Në not, tipi ideal trupit
10:05
is a long torso and short legs.
260
605496
1895
është një bust i gjatë dhe këmbët e shkurtra.
10:07
It's like the long hull of a canoe
261
607391
1939
Eshte si nje byk i gjate i lundres
10:09
for speed over the water.
262
609330
1706
per shpejtesi ne uje.
10:11
And the opposite is advantageous in running.
263
611036
1765
Dhe e kundërta është e dobishme në vrapim
10:12
You want long legs and a short torso.
264
612801
2015
Ju dëshironi këmbë të gjata dhe një bust të shkurtër.
10:14
And this shows in athletes' bodies today.
265
614816
2196
Dhe kjo tregohet në trupat e atletëve sot.
10:17
Here you see Michael Phelps,
266
617012
1595
E shihni Michael Phelps,
10:18
the greatest swimmer in history,
267
618607
1464
notuesi me i mire ne histori,
10:20
standing next to Hicham El Guerrouj,
268
620071
2869
duke qendruar perkrah Hicham El Guerrouj,
10:22
the world record holder in the mile.
269
622940
1987
bartesi i rekordit boteror.
10:24
These men are seven inches different in height,
270
624927
2817
Këta njerëz janë shtatë inç të ndryshme në gjatesi,
10:27
but because of the body types
271
627744
1202
por për shkak të llojeve të trupit
10:28
advantaged in their sports,
272
628946
1863
avantazh në sport e tyre,
10:30
they wear the same length pants.
273
630809
2388
ata veshin pantallona me gjatësi te njejte.
10:33
Seven inches difference in height,
274
633197
1494
Shtatë inç ndryshim në gjatesi,
10:34
these men have the same length legs.
275
634691
2520
keta njerez kane te njejte gjatesi te kembeve.
10:37
Now in some cases, the search for bodies
276
637211
1958
Keshtu ne disa raste, hulumtimi i trupave
10:39
that could push athletic performance forward
277
639169
1973
qe mund te shty performancat atletike me tutje
10:41
ended up introducing into the competitive world
278
641142
2643
perfundoi duke u futur ne boten konkurruese
10:43
populations of people that weren't previously competing at all,
279
643785
3139
popullsi njerezish te cilet nuk ishin fare konkurrues me parë,
10:46
like Kenyan distance runners.
280
646924
2752
si vrapuesit ne distance Kenian.
10:49
We think of Kenyans as being great marathoners.
281
649676
3330
Ne mendojme per Kenianet si maratonist te shkelqyer.
10:53
Kenyans think of the Kalenjin tribe
282
653006
2378
Kenianet mendojne per fisin Kalenjin
10:55
as being great marathoners.
283
655384
2100
si maratonist te shkelqyer.
10:57
The Kalenjin make up just 12 percent
284
657484
2095
Kalenjin përbëjnë vetëm 12 për qind
10:59
of the Kenyan population
285
659579
1797
te popullise Keniane
11:01
but the vast majority of elite runners.
286
661376
2169
por shumica e vrapuesve elite sot.
11:03
And they happen, on average,
287
663545
1306
Mesatarisht,
11:04
to have a certain unique physiology:
288
664851
2104
ata kane nje fiziologji unike:
11:06
legs that are very long
289
666955
1081
kembe shume te gjata
11:08
and very thin at their extremity,
290
668036
2538
dhe shume te dobeta ne ekstremitet,
11:10
and this is because they have their ancestry
291
670574
1418
dhe kjo eshte per shkak te prejardhjes se tyre
11:11
at very low latitude
292
671992
1435
në gjerësi shumë të ulët
11:13
in a very hot and dry climate,
293
673427
2415
në një klimë shumë të nxehtë dhe të thatë,
11:15
and an evolutionary adaptation to that
294
675842
1890
dhe një adaptim evolucionar qe
11:17
is limbs that are very long
295
677732
958
jane gjymtyrët tejet të gjata
11:18
and very thin at the extremity
296
678690
1519
dhe shume te holle ne ekstremitet
11:20
for cooling purposes.
297
680209
1774
per qellime ftohje.
11:21
It's the same reason that a radiator has long coils,
298
681983
3029
Është e njëjta arsye që një radiator ka mbështjellje të gjatë,
11:25
to increase surface area compared to volume
299
685012
1842
për rritjen e sipërfaqes krahasuar me volumin
11:26
to let heat out,
300
686854
1942
per te leshuar ngrohjen jashte,
11:28
and because the leg is like a pendulum,
301
688796
1513
dhe per shkak qe kembet jane si lavjerres,
11:30
the longer and thinner it is at the extremity,
302
690309
1657
sa me te gjata e me te dobeta deri ne ekstremitet,
11:31
the more energy-efficient it is to swing.
303
691966
2779
më shumë energji-efektive lenkundet.
11:34
To put Kalenjin running success in perspective,
304
694745
2594
Per te vene suksesin e vrapimit te Kalenjin ne prespektive
11:37
consider that 17 American men in history
305
697339
2727
duke konsideruar se 17 amerikan ne histori
11:40
have run faster than two hours and 10 minutes
306
700066
2629
kane vrapuar me shpejte se dy ore e 10 minuta
11:42
in the marathon.
307
702695
1289
ne maratone.
11:43
That's a four-minute-and-58-second-per-mile pace.
308
703984
3047
Kjo eshte kater-minuta- e- 58-sekonda-per-milje.
11:47
Thirty-two Kalenjin men did that last October.
309
707031
2935
Tridhjet-e-dy Kalenjin e kan bere kete gje Tetorin e kaluar.
11:49
(Laughter)
310
709966
2094
(Te qeshura)
11:52
That's from a source population the size
311
712060
1821
Kjo eshte nga nje burimi popullesia me madhesine
11:53
of metropolitan Atlanta.
312
713881
2827
e Atlantes metropolitane.
11:56
Still, even changing technology
313
716708
1574
Megjithatë, edhe ndryshimi i teknologjisë
11:58
and the changing gene pool in sports
314
718282
1606
dhe ndryshimi i gjenit ne sporte
11:59
don't account for all of the changes in performance.
315
719888
2473
nuk vlen per te gjitha ndryshimet ne performnaca.
12:02
Athletes have a different mindset than they once did.
316
722361
2890
Atletet kane mendime te ndryshme nga me pare.
12:05
Have you ever seen in a movie when someone gets
317
725251
1369
A keni parë ndonjëherë në një film kur dikush merr
12:06
an electrical shock
318
726620
1272
një goditje elektrike
12:07
and they're thrown across a room?
319
727892
2323
dhe ata hidhen nëpër dhomë?
12:10
There's no explosion there.
320
730215
1571
Nuk ka shpërthim atje.
12:11
What's happening when that happens is that
321
731786
1238
Çfarë ndodh është se
12:13
the electrical impulse is causing
322
733024
1462
impulsi elektrik është duke shkaktuar
12:14
all their muscle fibers to twitch at once,
323
734486
2130
qe të gjitha fibrat e muskujve të tyre te dridhen në një herë,
12:16
and they're throwing themselves across the room.
324
736616
2594
dhe ata janë duke hedhur veten nëpër dhomë.
12:19
They're essentially jumping.
325
739210
1897
Ata ne te verete jane duke kercyer.
12:21
That's the power
326
741107
1177
Kjo është fuqia
12:22
that's contained in the human body.
327
742284
1949
që përfshihet në trupin e njeriut.
12:24
But normally we can't access nearly all of it.
328
744233
2227
Por normalisht ne nuk mund te kemi akses ne të gjithë atë.
12:26
Our brain acts as a limiter,
329
746460
2019
Truri ynë vepron si një limitues,
12:28
preventing us from accessing all of our physical resources,
330
748479
2295
duke na penguar ne qasje në të gjitha burimet tona fizike,
12:30
because we might hurt ourselves,
331
750774
1241
sepse ne mund ta lendojme veten tone,
12:32
tearing tendons or ligaments.
332
752015
1692
duke shkeputur ndonje pjesez ose ligament.
12:33
But the more we learn about how that limiter functions,
333
753707
3023
Por sa me shume qe mesojme se si funksionon ai limitues,
12:36
the more we learn how we can push it back
334
756730
1880
aq me shume mesojme se si mund ta shtyjme
12:38
just a bit,
335
758610
1440
pak me tutje,
12:40
in some cases by convincing the brain
336
760050
2432
ne disa raste duke bindur trurin
12:42
that the body won't be in mortal danger
337
762482
1774
se trupi nuk do te jete ne rrezik per vdekje
12:44
by pushing harder.
338
764256
1810
duke shtyre me shume.
12:46
Endurance and ultra-endurance sports
339
766066
1619
Durim dhe ultra-durim sportive
12:47
serve as a great example.
340
767685
1572
shërben si një shembull shume i mire.
12:49
Ultra-endurance was once thought to be harmful
341
769257
2122
Ultra-durimi dikur ishte menduar i dëmshem
12:51
to human health,
342
771379
1415
për shëndetin e njeriut
12:52
but now we realize
343
772794
1418
por tani e kuptojmë
12:54
that we have all these traits
344
774212
1096
se ne kemi të gjitha këto tipare
12:55
that are perfect for ultra-endurance:
345
775308
3104
që janë perfekte për ultra-durim:
12:58
no body fur and a glut of sweat glands
346
778412
2924
nuk ka qime trupi dhe një tepri te gjëndrave te djerses
13:01
that keep us cool while running;
347
781336
1616
qe na mban me te freskte teksa vrapojme:
13:02
narrow waists and long legs compared to our frames;
348
782952
3400
bel te ngushte dhe kembe te gjate krahasuar me kornizat tona;
13:06
large surface area of joints for shock absorption.
349
786352
2918
siperfaqe te madhe te nyjeve per absorbimin e goditjes.
13:09
We have an arch in our foot that acts like a spring,
350
789270
2734
Ne kemi nje hark ne kembet tona qe vepron si suste,
13:12
short toes that are better for pushing off
351
792004
2103
gishta te shkurte qe jane me mire per shtyerje
13:14
than for grasping tree limbs,
352
794107
1674
pastaj per te shtrenguar gjymtyret
13:15
and when we run,
353
795781
1127
dhe kur vrapojme,
13:16
we can turn our torso and our shoulders
354
796908
1525
ne mund te kthejme bustin dhe supet tona
13:18
like this while keeping our heads straight.
355
798433
2044
keshtu perderisa mbajme kokat tona drejte.
13:20
Our primate cousins can't do that.
356
800477
1483
Kushërinjtë tanë primati nuk mund ta bëjë këtë.
13:21
They have to run like this.
357
801960
2310
Ata duhet te vrapojne keshtu.
13:24
And we have big old butt muscles
358
804270
2066
Dhe ne kemi muskuj te medhenj te ndenjurash
13:26
that keep us upright while running.
359
806336
2087
qe na mbajne ne kembe teksa vrapojme.
13:28
Have you ever looked at an ape's butt?
360
808423
1718
A keni pare ndonjehere prapanice te majmunit?
13:30
They have no buns because they don't run upright.
361
810141
3005
Ata nuk kane kane kocka sepse nuk vrapojne ne kembe.
13:33
And as athletes have realized
362
813146
1387
Dhe perderisa atletet kane kuptuar
13:34
that we're perfectly suited for ultra-endurance,
363
814533
2557
se ne jemi te bere per ultra-durim,
13:37
they've taken on feats
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ata kane marre persiper vepra
13:38
that would have been unthinkable before,
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2409
te cilat kane qene te pa imagjinushme me pare,
13:40
athletes like Spanish endurance racer Kílian Jornet.
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atletet si vrapuesi Spanjoll Kilian Jornet.
13:44
Here's Kílian running up the Matterhorn.
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2000
Ky eshte vrapuesi Kilian ne Matterhorn.
13:46
(Laughter)
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1512
(Te qeshura)
13:47
With a sweatshirt there tied around his waist.
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Me një xhup te lidhur rreth belit të tij.
13:50
It's so steep he can't even run here.
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Eshte aq e rrepire saqe ai nuk mund te vrapoj ketu.
13:52
He's pulling up on a rope.
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1653
Ai eshte duk u terhqur nga nje litar.
13:53
This is a vertical ascent
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Kjo eshte nje ngjitje vertikale
13:55
of more than 8,000 feet,
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e me shume se 8.000 feet,
13:57
and Kílian went up and down
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dhe Kilian shkoj lart e poshte
13:59
in under three hours.
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ne me pak se tre ore.
14:01
Amazing.
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1919
E mrekullushme.
14:03
And talented though he is,
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1189
Aq i talentuar sa eshte ai,
14:04
Kílian is not a physiological freak.
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2824
Kilian nuk eshte fanatik fiziologjik.
14:07
Now that he has done this,
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1679
Tani qe ai e ka bere kete,
14:09
other athletes will follow,
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1911
atlet te tjere do te ndjekin,
14:10
just as other athletes followed
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1517
ashtu si atlet te tjere kane ndjekur
14:12
after Sir Roger Bannister
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1574
pasi Sir Roger Bannister
14:14
ran under four minutes in the mile.
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vrapoi per kater minuta ne milje.
14:16
Changing technology, changing genes,
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1627
Ndryshimi i teknologjise, ndryshimi i gjenve,
14:17
and a changing mindset.
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dhe ndryshimi i mendimit.
14:20
Innovation in sports,
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Risite ne sport,
14:21
whether that's new track surfaces
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1657
nese ka pista te reja
14:23
or new swimming techniques,
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1464
ose teknika te reja te notimit,
14:25
the democratization of sport,
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demokratizimi i sportit,
14:26
the spread to new bodies
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1341
perhapja e organve te reja
14:28
and to new populations around the world,
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dhe popullsia e re rreth botes,
14:30
and imagination in sport,
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dhe imagjinata ne sport,
14:32
an understanding of what the human body
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1436
nje kuptim se per cka eshte ne gjendje
14:34
is truly capable of,
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te beje trupi i njeriut,
14:36
have conspired to make athletes stronger,
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1892
kane vendosur te bejne atletet me te forte,
14:38
faster, bolder,
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te shpejte, me guximtar,
14:40
and better than ever.
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dhe me te mire se kurre me pare.
14:42
Thank you very much.
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Faleminderit shume.
14:44
(Applause)
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Duartokitje
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