Range of motion, or ROM, is an often overlooked but very important part of lifting weights. It's a key factor in maintaining mobility, especially as we get less young.
The term "muscle-bound" is usually associated with a heavily developed bodybuilder whose own muscular development limits his movement. But big muscles don't automatically lead to poor mobility. Lots of athletes have significant muscular development along with excellent mobility. It's not a muscle's size that limits mobility; it's the ROM. And that applies to any size muscle.
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