Abs
Glutes
Upper Legs
Exercise Ball
intermediate
strength
reps
Steps : 1.) Start by standing straight up, feet shoulder width apart and holding an exercise ball in front of you. 2.) Lunge forward by placing one foot in front of the other, then twisting your upper body with the exercise ball away from your bent legs. 3.) With your back foot, return back to an upright position then switch sides and lunge forward. 4.) Repeat for as many reps and sets as desired.
Alternative Abs Exercises