Heavy lifting for the lower body is the closest thing to a natural replacement for taking steroids. Maximum exertion of large muscle groups (glutes, hanstrings

Heavy lifting for the lower body is the closest thing to a natural replacement for taking steroids. Maximum exertion of large muscle groups (glutes, hanstrings, quads) increases the body's testosterone production. Studies have shown that people who do lower body strength training in addition to upper body gain more overall strength (ie, they gain upper body strength faster than people training just upper body) edit -- start slow; you're going to want those knees later