are your elbows straight and locked? They should be loose and relaxed with a slight bent. Move your position around. Have you gotten your bike fitted by a qualified bike shop? You could have fit issues that could be resolved with a proper fitting.
I pinched the ulnar nerve in one hand while doing a long ride. I could wave bye-bye, but couldn't spread my fingers apart (no Vulcan "live long and prosper"). Fortunately my Doc at the time was a bike commuter. He sent me and my bike for a fitting, and said to have my handle bars corked - use a cork wrap, then the tape on top of that. Keeps some padding despite death grips on rough roads. Also told me to change hand positions. After about 2 weeks my hand function returned, but I still had to ride with a wrist brace for a couple of months to keep from reinjuring it.
So, get thee to thy LBS for a proper fitting, tell them you're having trouble with your hands, maybe get your handlebars corked, and change and positons while you ride.
Beth
Your whole arm, including the biceps and/or triceps? I vote for neck or thoracic outlet. Fit first, PT if that doesn't help.
Speed comes from what you put behind you. - Judi Ketteler
Yeah, I'll ditto with a possible neck issue. Weakness can definitely be caused by an irritated/pinched nerve away from where the actual "issue" is.
Are you tensing up your shoulders, straining your neck or anything like that?
I try to stay as relaxed as possible but, I'm still somewhat of a "newbie" so I could be tensing more than I think I am. And, yes, elbows are usually at somewhat of a bend.
I had my bike fitted when I got it so I don't think it's that. Like I said, it's getting better...it's just my hand that's still a bit weak so I tend to think that I might just have compressed the nerve running into the hand.
One of my fellow cyclists suggested a glove made by Specialized (maybe called Body Glove???) He said that it has extra padding at the outside of the hand where the wrist meets the hand. Anybody out there have a pair of these?
Position is important, and since you've had your bike fitted (did it take at least an hour??), then I'll assume that's not the problem.
Core strength is a big factor in position. If your core cannot hold your body up properly, you'll end up putting alot of weight on your arms, hands, and shoulders.
I've found the best thing to improve my core strength has been Pilates. Just make sure you go to a well-trained instructor, not some pseudo-pilates taught at some gyms (you can get injured in those classes--Body This and Body That).
Hope you get some relief soon!