The semitendinosus is a muscle located in the posterior compartment of the thigh. It is situated on the medial side of the back of the thigh, above the semimembranosus muscle. Anatomically, it originates from the ischial tuberosity of the pelvis and attaches to the medial surface of the tibia.
The main purpose of the semitendinosus is to flex the leg at the knee joint, extend the thigh at the hip, and medially rotate the thigh at the hip joint as well as the leg at the knee joint.
The semitendinosus muscle is innervated by the tibial part of the sciatic nerve, and is mainly supplied with blood from the profunda femoris artery.
Strengthening the semitendinosus can have a number of beneficial effects. This muscle helps to stabilize and support the knee joint, increasing balance while running or walking. Strengthening the semitendinosus can also help improve performance in activities that require a great deal of leg strength, such as running, jumping, and cycling.
Incorporating exercises that target the semitendinosus into a regular exercise program can help to improve leg strength and stability, reduce the risk of injury, and improve overall athletic performance. Exercises that can be used to strengthen the semitendinosus include:
When performing these exercises, it is important to maintain proper form and breathe steadily throughout the movements. In addition, it is important to focus on muscle contractions in order to ensure that the semitendinosus is being adequately targeted. With regular practice, you will be able to feel the muscles of the semitendinosus engage and become stronger.
Overall, the semitendinosus is an important muscle in the posterior compartment of the thigh. Understanding its functionality, innervation, and blood supply can help you to better target the muscle with specific exercises and reap the benefits of increased leg strength and stability.
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