Sport Science: Penalty Kicks (HD)

Sport Science's John Brenkus breaks down the scientific advantage penalty kickers have agains the goalkeeper.

[@echelonanglo2226]

Of course the kicker has the upper hand, a penalty was given in the first place because there was a foul on the box. Any forward or player in the box has lots of chances of scoring. It wouldn't be fair otherwise

[@RR-ir6ss]

It's not illegal for a goalkeeper to take a step forward to impulse their dive. But they do have to keep both their feet on the line before the dive. So, you're allowed to take only one step forward to impulse your dive, but that's it.

[@cjrouse9508]

Also a goalie has a 33% chance of blocking a PK if they stay in the middle. However this only works because most goalies dive so the statistical best shot to take is middle high. Its a balance that would shift if more goalies would stay center.

[@SeeJay2123]

Yo I'm a keeper and this sucks 4 me

[@baileyoliver725]

Cole J. I feel you

[@Nhoxlee69]

I feel dued... Ffs they keep complaing liek little b*tches and act liek they can block the shots liek tf? .-.

[@cjrouse9508]

Ever try just staying in the middle? 33% rate of success when goalies stay center.

[@brayden5984]

@@Nhoxlee69 ?jccccjzzhfzjhzhx

[@matt9464]

Keepers move forward so they don't hit there face/head on the post

[@DavyK17]

+Matt Peralta That, AND to reduce the ground they have to cover to make a save.

[@matthewbrady4801]

Good ane

[@saralynx]

+Matt Peralta no so they cut off the angle

[@maxvdh2135]

+KidKeepers they also move forward to create a ''power step'' so the dive is faster and can reach further

[@maxvdh2135]

+KidKeepers they also move forward to create a ''power step'' so the dive is faster and can reach further

[@elliotbastias3553]

Dear John Brenkus, thanks for the effort to share all this information based on research. I think goalkeeper coaches should consider all these aspects instead of contaminate the "scene" with toys and cones but with a lack of knowledge in the issue.... which is increase the probability that the ball does not cross goal line. Thanks again. Elliot Bastias.

[@michaelbryenton9335]

What percent miss the net?

[@alansanon01]

+Michael Bryenton Messi in the world cup finals

[@ronnytorres3227]

+Alan Sanon (Mockingjay) *95% of Ronaldo's penalty kicks

[@TheFineFTW]

hey scientist guy what about oliver khan? he missed like 4-6 goals on 1 world cuop

[@oscarbustos9606]

I need to know the source of this info... anyone???

[@rotua98]

that is why this is the hardest job ever, and why goalie price is far cheaper than attacker or other position

[@MrToffeecoffee]

Being a keeper myself it's actually not illegal to move a step off the line

[@lakfas3154]

MrToffeecoffee it actually is. no one seems to care though

[@nokrist6056]

lak fas I'm a 12 year old keeper and it's only when I do penalty shootouts with my friends who always call it out. But real refs don't really care

[@RR-ir6ss]

lak fas It's actually not. You're allowed one step forward when you dive, but that's it.

[@Concorde.]

BTW was it just me Who feelt pissed off at 0:44 When he says "gusses corectly" Beacuse i am a Goalkeeper and i dont guess i read his footmovement, run up, Where he has his eyes etc. And If i Can do that as a Goalkeeper Who pretty much plays Sunday-league then PRO-keepers are so Much more.....

[@PredatorBunny]

Sounds like soccer needs to make an adjustment if only about a 10th of PKs get blocked

[@AmerigoZ]

Yes but if he moves of he's giving less vision of the net and blocking of angles

[@LDK447]

yeah moving forward to save the ball doesnt help at all... which is why all goalkeepers do it

[@siliziwencanywa1138]

Yes, because they understand the science and math involved. Right?

[@LDK447]

@@siliziwencanywa1138 um, yes actually. Elite goelkeepers are paid 6-figure salaries per week to do the optimal thing. Teams have goalkeeping coaches and staff to do these calculations. Jumping forward before the kick is taken is an illegal move precisely because its an overpowered strategy. Because you do it before the kick is taken, you don't lose 0.3 seconds like the video says. You do it before the kick. Obviously jumping forward during the kick is dumb, which is why that isn't an illegal move. I'd trust an actual goalkeeper's knowledge on saving a penalty more than some broadcaster, especially an American one.

[@siliziwencanywa1138]

@@LDK447 I don't understand: if teams have analysts making these calculations, would they not come to similar conclusions?

[@LDK447]

@@siliziwencanywa1138 Which conclusions? Closing down the angle as much as possible before the kick, as a goalkeeper is always the optimal move. Watch any penalty in any professional game and the keeper will always step off his line as the first move. After they made it illegal to have both feet off the line before the kick, keepers started putting one foot off the line instead, and tried to get the second foot off as soon as possible as the kick happened to stay legal. The team analyses are the correct ones, not ESPN. ESPN has completely disregarded the fact that keepers step off the line (either with one foot or two) BEFORE the kick. So it doesn't affect the keeper's diving speed or reaction time, because these things come into play AFTER the kick. Also putting a foot forward before diving is generally good for generating more jump power than if both your feet were just horizontal. Body mechanics just work that way. So it's always a good idea anyway for diving faster and further. This analysis is what you get when you simplify football scenarios to gade-school math problems. Real sport doesn't work that way.

[@siliziwencanywa1138]

@@LDK447 Friend, I hear you. I just don't understand how you know definitively that they have not considered all you have said, other than to label them as not knowing anything because of their geographic location. The other point you have not considered is that keepers may have always been doing the wrong thing. The fact that all of them do that would not necessarily change that possibility, which is what ESPN is suggesting. A point which you have not really countered, but have possibly introduced straw-men into the argument. Anyway, thanks for your time...

[@Sits_YT]

im only watching this for a gym assignment

[@olirav00]

Alguien que le tradusca este vídeo al Gullit porfa!

[@anonymousbanana3144]

Isn't 400 milliseconds equal to 4 seconds?

[@anonymousbanana3144]

+Can'tThinkOfAName Sorry nvm, thx google

[@nokrist6056]

AnonymousBanana is your IQ -100,000,000,000,000

[@squintsalcantara6797]

they move forward so they have more room to parry it out with out it going in the net

[@mauriceandrequis3649]

squints alcantara finally someone got it right. I know im late by the way.

[@tr0fast280]

I saved 4/5 penaltys, and the 5 penalty was over the goal

[@zebcrockett3118]

I saved 2/10 penaltys last season

[@suyashawasthi1]

Please use non retarded system for speed.

[@rezoanalom9732]

I always guess one side, because you have no chance of saving a penalty by reacting unless it is a really shit one.

[@jimmywu1011]

Panenka

[@rodgervinsmoke8220]

Nowadays don’t they have to stay on their line

[@yogurtyummy6974]

Costa Rica Navas I am Costa rican I remember Costa Rica vs Greece

[@unforgettableruiz2448]

Raul Jimenez best penalty shooter in the world if not check him out a d let me know what u think

[@R1chardH]

its a penalty. or a pen.

[@sascyaassak7928]

I saved 3 out of 5...

[@Cdroh]

first penalties we're taken in 1982 gtfo

[@agicish]

PK?

[@PM-vs3rh]

Penalty kick

[@imisaac2you168]

agains

[@user-sc7mv7vj9y]

Cool

[@kadin3050]

Blonde Steve Carrell

[@Franklin2027a]

a science video use non science measure. "pretend to be scientific"

[@nathanielespinoza8472]

So boooooooooooring

[@gomenaros]

Good job on avoiding saying "soccer". But still, no American gonna tell us how to play FOOTBALL. Not even goalkeeping! :P

[@MrUbadabubudable]

i saved 78966456454/4