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A comment on ESPN Football Analyst Walks Away, Disturbed by Brain Trauma on Field. Parent comment

Re:ESPN Football Analyst Walks Away, Disturbed by Brain Trau... by pbhjpbhj on Thursday August 31, 2017 @05:53PM (#15144282)
It's a pretty unfair comparison, though I'd expect it's largely representative.

A rugby union player has to run around the pitch for 2 bouts of 40 minutes [about 40 minutes of 'ball in play' time]. According to this article - https://qz.com/150577/an-average-nfl-game-more-than-100-comm... - the average NFL match is 11 minutes of action, in [average] 4s bursts, over a 3+ hour period. Many NFL positions can optimise for muscle mass without worrying about stamina and sustained speed.

FWIW the measured tackle and at least one footage tackle [8mins 26s] in your linked video - https://youtu.be/TSc_Gxq1two - look illegal to me, lifting a player and pushing them down with head/shoulders first towards the ground (spearing, https://en.wikipedia.org/wiki/Spear_tackle) is a red-card offence.

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Re:ESPN Football Analyst Walks Away, Disturbed by Brain Trau... by forapurpose on Thursday August 31, 2017 @06:43PM (#15144599)
> Many NFL positions can optimise for muscle mass without worrying about stamina and sustained speed.

Not just mass. What I often hear NFL athletes and trainers talk about maximizing "explosion" in their movements.

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