Shoulder pain with left hook

rest that hand for a week, ice it, stretching etc.. its normal thing but if you dont rest it for a while pain will be there for a longer time..

 

Punch palm down, stabilizes the shoulder.

 

Yes it protects the shoulder, which protects the Chin, it closes the Hole.

 

It might be your bicep tendon pulling on your shoulder.

 

Incorrect.

Palm down reduces the influence of the bicep. It has nothing to do with shoulder stability. The rotator cuff IS shoulder stability. Not the superficial muscles of the shoulder.

If you pulled a bicep tendon, rest in and don't strain it.

If you hook palm down, you're asking for a wrist injury.

 

It depends on how bad you strained it. It could be anything from a mild strain to a torn labrum.

To aid the healing of tendons, you require slight tension (NOT stretching) on the bicep, so easy tension at end of range, combined with active extension of the antagonist. Translation: straighten your arm in a slow, controlled way to glide the tendon.

It could take from a couple weeks to 4 months. If its a labrum tear, its surgery time.

 

Disagree long left hook the Bicep isnt a player as such its the knee and opposite shoulder. Turning the wrist stabilizes the elbow and shoulder, givesbetter direction and balance to the movement, I agree with the rest

 

He said its his bicep that hurts. Here's an experiment: Bend your elbow and look at your bicep. Now turn your hand palm down. Next, turn your hand palm up. You see the bicep activation? That's the relation to pronation (palm down) and supination (palm up) to bicep activation.

Another word about wrist position while hooking: If you pronate (palm down) as you're advocating, you're putting all the stress of impact on the ligaments on the sides of the wrist, not to mention if you clip the target with the pinky and ring knuckle (very likely), those take all the impact along with the thumb-side lateral ligament.

Contrast that to keeping the wrist in supination (palm up), and keeping the metacarpals (hand bones) in line with the direction of motion and on the outside, so they bear the burden of force of impact. This way, you rely on the bones of your hand being in line with the bones of your forearm (the radius and ulna aren't crossed anymore, as in pronation) AND the wrist flexor and extensor muscles to keep your wrist in a neutral position.

I hope it's clear now that using/relying on the bones being in line in combination with large muscle groups of the wrist is better/safer than using/relying on the lateral ligaments of the wrist and potentially only one knuckle...

I have no idea what you're talking about involving the opposite shoulder and the knee...

Turning the wrist into pronation (palm down) as you say actually decreases stability, if anything, when hooking because of the direction of the stroke.

Please explain what supination/pronation (palm up/palm down) have to do with shoulder and elbow stability, and you'll have to do better than "Turning the wrist stabilizes the elbow and shoulder, gives better direction and balance to the movement".

How? Explain how. I explained and had you demonstrate to yourself how the bicep is directly related to pronation/supination and how it relates to this subject, the hook, and jonbonez' issue with it.

If there's something I'm missing, please explain.