Watch These Bodybuilders Try a 1,000-Rep, 30-Minute Arm Workout Philip Ellis Replay Video UP NEXT Fitness YouTubers Jujimufu and Tom Boyden regularly subject themselves to extreme physical challenges, and review other people's workouts. In their latest video, they switch things up a little, and attempt a new arm workout of Tom's own devising. Consisting of standing preacher curls, tricep pulls and hammer curls, using light weights, the aim is to get to 1,000 reps within 30 minutes, which works out as an average of 33 reps per minute. "We have no quantitative analysis for how ...