A concentric contraction is a type of muscle activation that causes tension on your muscle as it shortens. As your muscle shortens, it generates enough force to move an object. This is the most ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

In the US, there are over 33 million musculoskeletal injuries, with more than 50% involving tendon injuries. (James et al. J Hand Surg AM, 2008) More than 1,000 tendons in our body can present with ...

What Are Eccentric and Concentric Contractions? Eccentric contractions occur when a muscle lengthens under load, such as lowering a dumbbell during a biceps curl. Concentric contractions happen when ...

Tendinosis is where a tendon’s collagen degenerates in response to overuse. Tendonitis, however, is when a tendon becomes inflamed. The umbrella term for these conditions is tendinopathy. Tendinosis ...