The second isotonic contraction, an eccentric muscle contraction is when the muscle fibers are “lengthening,” or returning to their resting length after shortening during the concentric phase.

Isometric contractions occur when tension increases but the muscle remains at a constant length. Many strength building exercises involve concentric or eccentric movements, which are both isotonic ...

Should you focus on concentric or eccentric loading to build muscle and strength? We cover the benefits of both and how to prioritize them.

If you enjoy working out, your fitness routine probably includes exercises like squats, lunges, and push-ups. These are all ...

In isometric exercises, the muscle length stays static or the same during the contraction, says Weguelin. The joint that the muscles control does not move, either. However, the tension produced by ...

Isotonic exercise means your muscles lengthen and shorten during contraction through the same amount of tension (like a lunge), whereas isometric exercise is static, like a plank.

Isometric exercise. In isometric exercises, the muscle length stays static or the same during the contraction, says Weguelin. The joint that the muscles control does not move, either. However, the ...

According to a 2017 study in 31 males, isokinetic exercise was more effective at improving functional performance than isotonic or isometric exercises, or exercises involving muscle contraction ...