Intermediate abdominal exercise.

Instructions

  1. Lying down face up on a mat, have your knees bent, and your feet flat on the floor. Your arms should be straight up holding the ball between both hands.

  2. Exhale and simultaneously lift knees and the ball up, keeping your arms straight. When the ball reaches the knees, hold for 2 seconds and release. In this position focus on really contracting those abdominal muscles.