What describes a flexion synergy pattern of the arm?

The flexion synergy pattern of the arm is characterized by specific movements that occur during abnormal reflex activity, often seen in conditions such as neurological injuries. In this pattern, the shoulder typically adopts a retracted position while also being abducted and externally rotated. Meanwhile, the elbow is flexed, and the forearm is often supinated. This combination reflects a typical response where flexor muscles are predominantly engaged, resulting in the described positions of the shoulder and elbow.

Understanding this pattern is crucial because it offers insights into the typical postural and movement strategies used by individuals with upper motor neuron lesions. Observing the flexion synergy can help in developing appropriate therapeutic and rehabilitative strategies for patients, focusing on strengthening antagonistic muscle groups and facilitating better motor control and functional mobility.