An early article on ‘retrogravity’ training more commonly known as negative reps. Very important tool in any bodybuilders arsenal.Source: Peak Muscle Maker Vol.3 No.1 (June 1971) Page #16 - Peak Muscle Maker Vol.3 No.1 (June 1971) Page #17 - Peak Muscle Maker Vol.3 No.1 (June 1971)