Israetel, Ph.D., is an exercise scientist and co-founder of Renaissance Periodization, a company that provides training and ...

Fitness experts weigh in on the differences between concentric vs. eccentric exercise, and why both are important.

Background Most studies of exercise-induced muscle injury have focussed on eccentric contractions, which are known to produce damage and delayed soreness. It is less well known that isometric ...

Other exercise programs (isometric and isotonic exercises) have the potential to decrease pain while continuing sport activities [Kongsgaard, 2010; Naugle 2012]. The aim of this study was to compare ...