National Academy of Sports Medicine (NASM) Group Fitness Instructor Practice Exam

Self-myofascial release is most effective for which physiological adaptation?

1. Increased muscle strength

2. Increased joint range of motion and muscle extensibility

3. Enhanced aerobic capacity

4. Improved flexibility

The correct answer is: Increased joint range of motion and muscle extensibility

Self-myofascial release (SMR) is a technique that focuses on relieving tension in the fascia and muscles, helping to restore normal muscle length, improve function, and enhance overall movement quality. The primary physiological adaptation associated with SMR is increased joint range of motion and muscle extensibility. When SMR is applied, it helps to release tightness in the fascia and muscles, promoting relaxation and lengthening of muscle fibers. This process can lead to improved flexibility and joint mobility, making it easier for individuals to achieve a greater range of motion during physical activities. As a result, not only does this technique provide immediate benefits, such as reduced muscle soreness and increased blood flow to the area, but it also contributes to long-term adaptations involving enhanced extensibility of muscles and connective tissues. While improved flexibility and increased muscle strength are also important adaptations in a fitness regimen, they are more closely related to specific stretching routines and resistance training, respectively. Enhanced aerobic capacity typically results from sustained cardiovascular exercise rather than from techniques like SMR. Thus, the most accurate choice in context of physiological adaptations is indeed the improvement in joint range of motion and muscle extensibility through the practice of self-myofascial release.