Isn't the grip shown a semi-pronated grip rather than a semi-supinated grip? Isn't a semi-supinated grip about halfway between a neutral grip and a supinated grip?
The advice on the chin up in this vid seems to favor the neutral grip, could you still apply this to say a a pronated grip not going to wide or close in hand distance, or would it be best to just stick with the neutral grip for this exercise.
You might be right. My thought was the bottom position is a lot more problematic, and more commonly abused ("full range of motion", kipping chinups, etc.)
I'd consider protecting the bottom position to be far more important than the crunch at the top; although the traps and other scapulae retractors fatiguing prematurely would still come into play.
Reduces the moment arm (makes it easier) where the lats are getting weaker (weaker range of the lats' torque curve). Also, I don't think I say "actively crunch" (or maybe i did), but the idea should be to "allow" a crunch. Since the lats connect pelvis to the arms, crunching is the natural movement; notice when people do sloppy crunches, the body uses the lats to pull the elbows forward to complete the crunch. You could try to keep the abs relaxed, but you would be fighting the natural flow.
@optimalex Just curious- would the crunch at the top put someone at risk for subacromial impingement? It seems like the scapula are anteriorly tilted versus a posterior tilt if someone were to keep the arch during the exercise. That scapular position seems risky. Would you modify this with someone with shoulder issues?
Thanks for the great info. There are some people on Youtube claiming they can do many chins, but they bounce and do other things you warned not to do.
I just can't see how the GH joint extends when you do a chin up. I'm so fuckin lost with my review. haha
greenpokerchip 1 month ago
I'm reviewing for the biomechanics of the shoulder. And hopefully, I can find in your video my answers to the GH joint related questions.
greenpokerchip 1 month ago
Isn't the grip shown a semi-pronated grip rather than a semi-supinated grip? Isn't a semi-supinated grip about halfway between a neutral grip and a supinated grip?
ProPlayMaker 1 year ago
The advice on the chin up in this vid seems to favor the neutral grip, could you still apply this to say a a pronated grip not going to wide or close in hand distance, or would it be best to just stick with the neutral grip for this exercise.
tehmightybaron 1 year ago
You might be right. My thought was the bottom position is a lot more problematic, and more commonly abused ("full range of motion", kipping chinups, etc.)
I'd consider protecting the bottom position to be far more important than the crunch at the top; although the traps and other scapulae retractors fatiguing prematurely would still come into play.
optimalex 1 year ago
Reduces the moment arm (makes it easier) where the lats are getting weaker (weaker range of the lats' torque curve). Also, I don't think I say "actively crunch" (or maybe i did), but the idea should be to "allow" a crunch. Since the lats connect pelvis to the arms, crunching is the natural movement; notice when people do sloppy crunches, the body uses the lats to pull the elbows forward to complete the crunch. You could try to keep the abs relaxed, but you would be fighting the natural flow.
optimalex 1 year ago
@optimalex Just curious- would the crunch at the top put someone at risk for subacromial impingement? It seems like the scapula are anteriorly tilted versus a posterior tilt if someone were to keep the arch during the exercise. That scapular position seems risky. Would you modify this with someone with shoulder issues?
MarioNucci27 1 year ago
Bill, what's the purpose of the crunch at the top of the movement?
ozakariya 1 year ago
christopher walkin sure knows a lot about chinups
1511924 1 year ago 5
Thanks for the great info. There are some people on Youtube claiming they can do many chins, but they bounce and do other things you warned not to do.
ganyuehan 1 year ago
Great video Bill thanks a lot for the tips. Long live this video series! :-)
ozakariya 1 year ago 4
Great instruction!
statisticool 1 year ago 6