Rivak has been instrumental in my recovery from injuries, and provided a much more balanced strength and flexibility program. I’m now stronger than before and have a more efficient workout schedule that yields better results. He is experienced and has a thorough knowledge of exercise physiology. My principal exercise activity is ultra-marathon cycling supplemented with racquetball and skiing. Besides technical expertise he also can adapt to changing personal goals, and provide important motivational messages. I’ve tried yoga, Pilates, and traditional physical therapy. Rivak’s sports performance training style easily surpasses all of them!