[treehau5]

And the only way I can see that solution happening is some sort of full-body wearable, neck to toe.

I remember an Under Armor commercial demoing some sort of envisioned prototype of this kind of tech.

edit: They also have something called Armor39, a strap that goes around your chest. I am now curious. Anyone used this?

[mahyarm]

Well you have Athos clothing trackers coming out soon, which tracks muscle exertion.

Thing is although, it costs $300-$400 dollars. Runkeeper works with the phone you already have, and you can optionally add a couple of $50-$150 accessories. Very different price points.

[TheCapn]

This might have promise to what you're thinking of:

http://www.liveathos.com/

[edraferi]

Skip the complex sensors - I'd be happy just to have a low friction interface for recording lifts.