Knee Pendulum Reflex

The knee (pendulum) reflex is a motor reflex, which manifests itself in the fact that when the leg is bent at the knee and the foot hits the surface, it extends. This reflex is important for maintaining balance and coordination of movements.

The knee reflex belongs to the group of reflexes of group B. It occurs when the foot or knee hits the surface and is accompanied by active movement. This reflex is also called the Tom reflex or Rusetsky reflex.

The mechanism of action of the knee pendulum reflex is that at the moment of a blow to the knee, the hip flexor and leg extensor muscles contract. This causes the knee and foot to extend. Thus, the knee pendulum reflex helps maintain balance and coordination during movement.

In addition, the reflex can be used as a test in diagnosing nervous system disorders. If the reflex is absent or weak, this may indicate a problem with the central nervous system, such as spinal cord damage or cerebellar dysfunction.

Overall, the patellar reflex is an important motor reflex that helps maintain balance and coordination. Its absence or weakness may indicate the presence of disturbances in the functioning of the nervous system.

Knee pendulum reflex.

The knee reflex can be pendulum-like or rocking. Conducted by two specialists to simplify the examination and assessment of paresis of the pyramidal system and cerebellar connections.

The rocking version of the knee reflex consists of sequential contraction and relaxation of the quadriceps femoris muscle,