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

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

Leg lifting exercises are efficient at targeting your lower abdominal muscles — think leg raises or reverse crunches, for ...

Isometric exercises might sound like something straight out of a fitness science lab, but they're actually one of the simplest and most effective ways to build muscle and strength. Imagine holding ...

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 ...

So PNF stretching is potentially a more time-efficient way to improve flexibility, compared to, for example, static ...

Here, the muscles are contracting isometrically to hold this gymnast in the crucifix position and are not changing length. When the isometric contractions end, isotonic contraction will occur.

Here, the muscles are contracting isometrically to hold this gymnast in the crucifix position and are not changing length. When the isometric contractions end, isotonic contraction will occur.

Rock climbing has increased in popularity as both a recreational physical activity and a competitive sport. Climbing is physiologically unique in requiring sustained and intermittent isometric forearm ...