Training

Isometric exercise

Also called Isometric hold, Static strength

An isometric exercise is a hold where muscles work hard but the joint angle stays roughly the same, such as a wall sit.

Isometric work builds endurance and joint stability with little movement, which can suit beginners and people easing back after injury. Hold times are often 10 to 45 seconds for several sets. Isometrics complement moving lifts; they do not replace full-range strength training if your goal is power for sport.

General information, not medical advice.