Side Plank

Lie on your side with your elbow lined up under your shoulder.  Keep your knees straight so your lower body is lined up with your trunk and upper body.  Prop your upper body up on your elbow.  Now, the only body parts touching the floor are your elbow and foot.

Maintain alignment of your body in this position for at least 10 seconds.  Perform 10 repetitions on one side before switching over to the other.

It is important to maintain normal relaxed breathing during this exercise.  Avoid holding your breath and a rigid body.  Move in and out of the plank position slowly with each repetition.  Control your movement.  Quality is more important than quantity.