For fitness-minded folks, muscle testing can sound pretty intriguing. But it turns out that it has little to do with fitness...or even muscles. On a basic level, muscle testing looks at a muscle and ...

Handgrip strength test: simple squeeze predicts muscle, heart health, ageing, and cardiovascular risk.

Split hand syndrome is a potential sign of amyotrophic lateral sclerosis (ALS). This means that some of the muscles in the hand are weak and thin (atrophied), while others are less affected.

The Peg Restrained Intrinsic Muscle Evaluator (PRIME) enables more-accurate hand strength evaluation than methods that are currently available. (Image courtesy of Rice University.) A senior project ...