May 25, 2021 By Deane Barker • May 25, 2021 • 21-18-15-12-9-6-3 --- Cal Row Box Jump S2OH (95/65) Good mover. The box jumps are tough for someone my size. The workout was easier because box jumps and barbell work are isolated from each other. When you’re doing a box jump, your upper body isn’t working. When you’re doing a push jerk, your lower body isn’t doing much. That makes it workout easier than it looks.