Muscle Strengthening

The most important basic movements of the knee joint are flexion and extension, and the quadriceps and hamstrings (biceps femoris, semimembranosus, and semitendinosus) are the primary muscles involved in this motion. When the term “muscle strength” is used to describe muscular force, it is important to note whether the author intends to convey the concept of “muscle strength”, which refers to the maximum contractile force of a muscle, or “muscular endurance”, which refers to the ability to sustain a workload. This section focuses on “muscle strength”, referring to the maximum contractile force of a muscle.