Time under contraction is not directly measured in a typical weight training program. Most people really don't even think about the number of seconds a given muscle is forced to work. Indirectly, ...

In a serendipitous discovery, UC San Diego researchers using cryo-EM technology captured the first visualizations of the 3-D structure of the muscle acetylcholine receptor in fetal and adult muscles.

The neuromuscular junction - where nerves and muscle fibers meet - is an essential synapse for muscle contraction and movement. Improper function of these junctions can lead to the development of ...

Calcium is the essential "on switch" for muscle contractions and a critical partner in maintaining hydration during hard ...

Some workouts leave you buzzing, muscles pumping, and energy on high. Others leave you wondering if you made any progress at all. The difference often comes down to more than just the weight on the ...

This article is part of a broad series on recent advances in the science and medicine of longevity and aging. The series covers a range of topics, including musculoskeletal health. Expect more ...