Which of the following is a confirmed benefit of stretching?

• A. Decreased blood pressure
• B. Decreased posture
• C. Increased flexibility
• D. Increased resting heart rate

Answer: (C)

Stretching primarily targets flexibility—the ability of muscles and tendons to lengthen and joints to move through a wider range of motion. When you stretch regularly, muscles and the surrounding connective tissues become more compliant, allowing you to achieve greater joint mobility. That improvement in range of motion is the most consistently observed and well-supported benefit of stretching, making increased flexibility the best choice.

Lower resting blood pressure isn’t a reliable, direct outcome of stretching, and any modest effects are not as consistently demonstrated as those from aerobic exercise. Decreased posture would imply a decline in alignment, which isn’t a goal of stretching; in fact, stretching can help address muscular tightness that affects posture. Increased resting heart rate isn’t a benefit of stretching, since the activity is low intensity and typically doesn’t raise resting heart rate.