This is one of the most important secrets that gets overlooked, and it’s the first thing that you should do before any work out. More importantly, you must also stretch during your working as well as after. Your muscles need to be stretched not only to prevent injury, but so the muscle groups that you are targeting don’t not stiffen up. Also, stretching will help increase endurance and flexibility.
Secret: Stretch your entire body before working out, stretch your targeted muscle(s) during your workout and stretch your entire body after your workout.