Squats and bicep curls are good examples of exercises that cause the muscle to change length throughout the movement. But isometric training involves simply contracting your muscles, which ...

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 ...

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 ...

Surface EMG data were collected from the vastus medialis oblique (VMO), vastus lateralis (VL), and gluteus medius (Gmed) muscles of the dominant leg of each subject during three single leg, weight ...