Muscle Building: Isolation Exercise - Stretching

No, Its not an isolation exercises! But since you have come so far so read this. It is always a good idea to warm up and stretch before working a muscle group. A good stretch for the pec muscles uses a doorway. Step through the doorway, reaching back with both arms. Hold the doorway on either side, as shown, then stick your chest out. Hold for 10 -15 seconds, relax, the repeat 2-3 times. Try to stretch a little further each time.