Asymmetrical tonic neck reflex

It is also known as the bow and arrow or "fencing reflex" because of the characteristic position of the infant's arms and head, which resembles that of a fencer.

Over time, both the ATNR and TLR can cause serious damage to the growing child's joints and bones.

When abnormal reflexes persist in a child, evidence suggests early intervention involving extensive physical therapy as the most beneficial course of treatment.

The fencing response occurs in adults as a result of mechanical forces applied to the head, typically associated with contact sports.

The fencing response is transient and indicates moderate forces applied to the brainstem, resulting in a traumatic brain injury.

The asymmetrical tonic neck reflex (ATNR) in a two-week-old female, with extension of the left extremities and flexion of the right.