Sherri Betz, PT, GCS, CEEAA, PMA-CPT, has been a Physical Therapist since 1991, international presenter, Polestar Principal Educator/Examiner, Gyrotonic/GyrokinesisTM Instructor, nominated for APTA Geriatric Clinical Specialist Award 2004, author of The Osteoporosis Exercise Book, creator of modified Pilates videos for special populations & is pioneering research in Pilates for Osteoporosis and Geriatrics. Sherri owns TheraPilates Physical Therapy and Gyrotonic Clinic, in Santa Cruz, CA, serves on the Professional Education Committee for FORE (Foundation for Osteoporosis Research & Education) and is the Secretary for the Pilates Method Alliance Board of Directors.