Difficulty Level: Intermediate
Muscle Groups Worked: Abdominals
Equipment: Bodyweight Only
Movement: Like on the floor with your hands either crossed over your chest or behind your head. Raise your legs in the air and bend your knees and hips to form right angles. Keep your lower legs parallel to the floor and your feet crossed. Lift your shoulder blades a few inches off the floor by curling up. Slowly return to the starting position after squeezing your abs.