The connection between a muscle and its tendon. The junction contains muscle cells with sarcomere membranes, which are folded inwards in a complicated manner. The in-folding reduces the ability of the muscle cells to generate stress on the junction during a muscle action, possibly reducing the risk of tears. If, however, a tear does occur (e.g. as a result of over-training) the complex infolding of the terminal sarcomeres may not be repaired fully, increasing the risk of a ‘re-tear’.
Subjects: Sports and Exercise Medicine.