abs (see anatomy file, click
Starting Position :
Lie on your back on the floor. Bend your knees to a 90-degree angle
and clasp your hands behind your head.
The Exercise :
Contract your abdominal muscles to lift your shoulders and upper
back off the floor. Squeeze for a count of two and then slowly lower
back to the starting position. Repeat.
Focus on using only your abdominal muscles. Do not pull your arms
forward to lift your shoulders off the ground. Be sure your low back
is pushed flat against the ground throughout the exercise.