Common diseases
The hemi-tendon muscle can be affected by damage to the sciatic nerve (“sciatic nerve”). The nerve that supplies it (tibial nerve) originates from the sciatic nerve. If there is serious damage, the entire ischio-crucial musculature on the back of the thigh can fail.
As a result, the anterior thigh muscles of the opponents are missing and painful hyperextension of the knee joint by the M. quadriceps femoris can occur. In addition, athletes may suffer the typical muscle injuries such as pulled muscles, torn muscle fibers or complete muscle rupture due to overloading. (Tendon) irritation can also occur.
No disease but nevertheless an important clinical significance has the muscle in the treatment of an anterior cruciate ligament rupture. In so-called “cruciate ligament plastics”, the most frequently performed cruciate ligament operation, the tendon of the semitendon muscle is usually completely removed. It is then “folded” several times and used as a stable cruciate ligament replacement in the knee. If the tendon of the semi-tendon muscle is not strong enough or for some other reason not sufficient for cruciate ligament plastic surgery, the tendon of the semi-membranous muscle can be additionally or alternatively removed and inserted.
Strengthening and stretching
In principle, all exercises in which the stretching of the leg is intensified and thus the (knee) flexor group on the back of the thigh is stretched are suitable for stretching the semimembranous muscle. Classically, the athlete achieves this by trying to reach the toes with the fingertips when the legs are stretched and the back is as straight as possible. This stretching exercise is often perceived as very unpleasant and should not be exaggerated!
Strengthening of the muscle can be done in the gym on specially designed machines. All exercises in which the knee joint is flexed (if necessary also with a counterweight) strengthen the semimembranous muscle. (Sog.
“Leg bicepscurls”) Synergists: In the hip joint: Extensor: Large and middle gluteal muscle (Mm.glutei maximus et medius), biceps femoris, semitendinosus Adductors: pectinus muscle, short and long adductor (adductor brevis et longus), large adductor (adductor brevis et longus). adductor magnus), slender muscle (M. gracilis) In the knee joint: flexor: sartorius muscle (M. sartorius), slender muscle (M. gracilis), biceps femoris, biceps femoris, gastrocnemicus antagonist: In the hip joint: flexor: iliopsoas muscle, sartorius muscle, tensor fasciae latae muscle, quadriceps femoral muscle – straight part (sartorius muscle). rectus femoris) Abductors: Thigh bandage tensioner (M. tensor fasciae latae), small and medium gluteus muscle (M. gluteus minimus et medius) In the knee joint: Extensor: quadriceps femoris
