Army Physical Readiness Training (PRT) Practice Test – Prep & Study Guide

The primary motion involved in the Y Raise exercise is indeed raising the arms to form a "Y." This specific movement targets the shoulder muscles, particularly the rotator cuff and the deltoids, promoting stability and strength. By elevating the arms in this manner, the exercise also enhances shoulder flexibility and coordination.

This motion is crucial for developing functional strength that is applicable in various physical activities and is beneficial for overall upper body mobility. The exercise's design to create a "Y" shape helps ensure proper alignment and engagement of the shoulder girdle, which is essential for maintaining good posture and minimizing the risk of injuries during physical training.