CSCS Exam Practice Test Review 2025

CSCS Exam Practice Test Review 2025 1. Which muscle is primarily involved in the action of shoulder extension? Pectoralis major Latissimus dorsi Trapezius Supraspinatus 2. . _____ is the smallest contractile unit of a muscle. Sarcolemma Sarcoplasm Sarcomere Myocytes 3. Explain the role of the hamstrings in knee flexion and how they interact with other muscle groups during this movement. They are the only muscles involved in knee flexion. They work in opposition to the quadriceps to allow for bending of the knee. They assist the gastrocnemius in stabilizing the knee during extension. They are primarily responsible for hip flexion, not knee flexion. 4. Which type of muscle fibers are known for their ability to sustain prolonged activity without fatigue? Type I fibers