Inventory:
Lie flat on your stomach, up on your elbows. Hold your body
tightly. Don’t let your belly rest on the floor- contract
your abdominals. Buttocks and legs are also contracted.
Movement: Bending
at the knee, curl your legs up until your heels touch your
buttocks. Slowly bring your feet back to the floor. This
can be done one leg at a time or both together.
Proper Form:
Mentally concentrate on the muscle(s)
being worked.
You are creating your own resistance
so stay focused.