This exercise is excellent for abdominal muscles.
Lie down on your back. Put legs in the air so they form 90 degree angle with your body. Place hands on your legs and keep them there during the workout.
Start performing crunches by lifting your upper body and approaching your toes as much as you can. Always return to starting position with your shoulders on the exercise mat and hands on your legs.
Breathe in when you return to starting position and bre