www.24hourfitness.com/FindClubDetail.do?clubid=109 Personal Trainer Theo Simon from 24 Hour Fitness- Stadium in San Diego demonstrates a self myofascial release trigger point for your Piriformis using a medicine ball. This technique will eleviate and potentially prevent lower back, hip, buttock pain & injuries at your sacroiliac joint. If you want to learn more visit 24 Hour Fitness- Stadium in San Diego, CA. Address: 5885 Rancho Mission Rd, San Diego, CA 92108 Phone: (619) 281-5543