10.Abdominal Hold “Ab Workout Without equipment”
shape.com [PETER ARDITO]
It is a kind of step that looks so crooked, you are sure hope your roommate does not catch you doing it-unless he also saw how mad you get strong abs, in which case he can just pull up a chair. (Level up and trying to L-sit, which is the core and upper body exercises inspired big step.)
How to do it:
A. Sit tall on the edge of a sturdy chair (or step with four risers) and place your hands on the edge with your fingers pointing toward your knees.
B. Tighten your abs and bring your toes 2 to 4 inches from the floor. Lift your butt off the chair.
C. Hold this position as long as you can – aim for 5 to 10 seconds. Lose yourself down and repeat.
Continue for 1 minute.