What type of exercise is characterized by a fixed distal end of the limb?

Closed chain exercise is characterized by a fixed distal end of the limb, meaning that the part of the limb farthest from the body (such as the foot or hand) is stationary and in contact with a surface, like the ground or another object. This type of exercise often involves multiple joints and muscle groups working together, which can enhance stability and strength throughout a range of motion.

For example, during a squat, the feet are fixed on the ground while the body moves in a coordinated manner around the fixed point. This phenomenon allows for better functional strength and has been shown to be effective for rehabilitation and improving performance.

Other types of exercises differ significantly from this characteristic. Open chain exercises involve the limb moving freely, without a fixed distal end, such as leg extensions or arm curls where the feet or hands are not in contact with a stable surface. Isometric exercise involves muscle contraction without movement, maintaining the same joint angle and position, such as holding a plank. Dynamic exercise refers to any type of exercise that involves moving parts of the body through a range of motion, which can include both open and closed chain movements. Thus, the unique aspect of closed chain exercises is the stability and fixed position of the distal end, which promotes a different set of benefits