4 FOR THE CORE, EXERCISE 2: SIDE BRIDGE
Lay on either side with the upper body off the ground, supported by the elbow, forearm, and fist. Cross the bottom leg in front of the top leg, keeping the feet together. The legs may also be positioned with the knees together and bent 90 degrees. Firmly press into the ground with the supporting arm, and then raise the trunk and pelvis straight upward until they form a straight line with the legs and knees. Hold this position while continuing to breathe. Switch to the other side after one minute. If he cannot hold for one minute, lower, rest briefly, then repeat until one minute has elapsed (Figure 6-7).
Figure 6-7. Side bridge