ACSM Personal Trainer Certification Practice Exam 2026 – All-in-One Study Resource to Achieve Certification Success!

Rotator cuff exercises specifically target the group of muscles that stabilize and support the shoulder joint. The rotator cuff is composed of four primary muscles: the supraspinatus, infraspinatus, teres minor, and subscapularis. Each of these muscles plays a crucial role in shoulder movement and stability.

The supraspinatus is responsible for initiating arm abduction, while the infraspinatus and teres minor are involved in external rotation of the arm. The subscapularis, on the other hand, assists with internal rotation. Strengthening these muscles is essential for maintaining shoulder health and preventing injuries, especially in activities that require overhead movements or heavy lifting. Proper rotator cuff function is vital for athletes and individuals engaged in physical activities requiring upper body strength and stability, making the inclusion of these exercises important in fitness and rehabilitation programs.

The other muscles listed in the options, such as the deltoids, biceps, triceps, quadriceps, erector spinae, and rectus abdominus, serve different functions in the body and are not part of the rotator cuff musculature. While these muscles may contribute to other movements or exercises involving the shoulder, they do not directly target the rot