Which exercise involves extending the leg while seated?

Knee extension in sitting is characterized by the specific movement of extending the leg while in a seated position. During this exercise, the individual sits on a chair or at the edge of a bench with their feet flat on the floor. The exercise involves straightening the knee to lift the lower leg upwards while keeping the thigh in contact with the chair. This movement primarily targets the quadriceps muscle, which plays a crucial role in leg extension and strengthening the knee joint.

This type of exercise is commonly utilized in rehabilitation settings to improve lower limb strength, particularly after injuries or surgeries involving the knee. It is beneficial for enhancing mobility and function, as well as for facilitating recovery from conditions that impact knee stability and strength.

Other options, while related to leg movement, do not specifically involve extending the leg while seated in the same way. For instance, quad sets focus on tightening the quadriceps while keeping the leg straight and stationary, hamstring curls involve bending the knee and bringing the heel towards the buttocks, and hip extension focuses on moving the leg behind the body while standing or bent over. These exercises engage different muscles and movements, but do not match the specific action and position described in knee extension in sitting.