The dependence of muscle development on specific cytoplasmic factors is dramatic.

Such cross-training, as it is called, also results in more balanced muscle development.

Some requirements are the same across all physical endeavors, like general muscle development and cardiovascular health.

Her reaction told me that it wasn't just me who'd noticed the shoulders and the extra muscle development.

The fetus is more active with increased muscle development.

The next thing you know, people are treating back or knee pain, when what they really want to be doing is balancing muscle development.

But their bodies were slender, not enough muscle development.

In a beef cow, for example, it is desirable to have a large animal with muscle development.

They will be used to study the effect of zero gravity on the human body's muscle development and physiology.