Squats Push Sit

3 rounds for reps
30 sec. air squats
30 sec. squat hold
30 sec. rest

3 rounds for reps
30 sec. push-ups
30 sec. plank hold
30 sec. rest
3 rounds for reps
30 sec. MB sit-ups (20/14lb)
30 sec. MB hollow hold
30 sec. rest