Year Long Workout: Phase V, Workout E
2B Swiss-Ball Jackknife w/Pushup
Sets: 2-3 Reps: 10 Tempo: 311 Rest: 60 Seconds

Get into pushup position, resting your feet on a Swiss ball [1]. Contract your abs and roll the ball toward your arms until your knees nearly touch your chest [2]. Reverse the motion until you are back in pushup position, and perform a pushup with your feet elevated on the ball [3]. That's one rep.






