That's Fit

BENCH JUMP

Works core, glutes, hamstrings, quads, and heart. Begin by standing on a one to two-foot-high backless park bench with your knees slightly bent and your arms straight out in front of you at shoulder height (A). Jump down so you're straddling the bench (B). Jump back onto the bench, landing with your feet together. Continue jumping down and up as quickly as possible for 20 seconds.

womenshealthmag.com

16/06/08