How often should all major muscles be stretched according to the stretching guidelines?

The recommendation to stretch all major muscles three days per week is based on research indicating that regular stretching can improve flexibility, reduce the risk of injury, and enhance overall physical performance. Stretching major muscle groups three times a week helps maintain or increase the range of motion in the joints, which is essential for functional movement and physical activity. This frequency allows for consistency in practice, making it easier to establish a routine that promotes muscle elasticity and recovery.

On the other hand, stretching less frequently, such as twice a week, may not provide sufficient stimulus for significant improvement in flexibility. Stretching four or five days a week could be excessive for individuals, especially beginners, potentially leading to muscle fatigue or strain if not paired with adequate recovery. Therefore, the guideline of stretching major muscle groups at least three times per week strikes a balance between promoting flexibility and preventing overuse.