Stretching Facts You Need To Know Make stretching a mandatory part of every workout. When muscles perform any exercise, they tighten and shorten as a result. Stretching can help maximize your range of motion. A simple warm-up walk while moving your arms in a circular motion is sufficient. When doing strength training, you could stretch each muscle group directly after performing each set. Do not stretch beyond the point where you begin to feel tightness in the muscle. Do not push through muscle resistance and never stretch to the point of discomfort or pain. Incorporate stretching into your regular workout both before and after you're done. This will help reduce your chances of getting injured, feeling sore and getting muscle cramps.