When I was trained as an American physician, I was never exposed to the concept of muscle strength testing that is utilized as part of the pseudo-scientific field of applied kinesiology (AK). To be ...

Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

A muscle biopsy is a procedure that removes a small sample of tissue for testing in a laboratory. The test can help your doctor see if you have an infection or disease in your muscles. A muscle biopsy ...

Building your fast-twitch muscle fibers can help you get stronger and faster. This type of muscle fiber is responsible for the fast, explosive movements used in activities like sprinting, jumping, and ...

A muscle strain is when you damage a muscle or the tendons attached to it. (Photo credit: PhotoAlto Agency RF Collections/Getty Images) A muscle strain is an injury that happens when you overstretch ...

Amyotrophic lateral sclerosis (ALS) is a progressive disease of the nervous system. It affects nerve cells in the brain and spinal cord called motor neurons. Motor neurons control muscle movement and ...