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, ...

Current medical imaging technology misses important data regarding muscle contraction, including the ways in which a muscle's shape changes when it contracts, how the muscle bulges, and how its ...

Physical forces from gravity, muscle contraction, and more have strong impacts on how the cells in our bodies behave. For instance, weight-bearing exercise helps stave off osteoporosis because cells ...

As a doctor of physical therapy, I work with clients every day who are dealing with pain. The pain-medicine industry might tell you there are endless ways to reduce or eliminate pain without lifting a ...

Actomyosin is a protein complex composed of actin and myosin. It is found in muscle fibers where it plays a role in muscle contraction. Actin is one of the most abundant proteins in eukaryotes. It ...