• Su Reid-St. John is Health’s senior fitness editor; she writes frequent product reviews for Health.com.
• Lisa Halbower-Fenton is a footwear product development consultant specializing in fit-and-performance analysis and structure.
• Jessica Matthews is a personal trainer, plus the certification director and a gear reviewer for the American Council on Exercise.
• Kristin McGee is a yoga and Pilates instructor and personal trainer, as well as a regular Health columnist.
• Natalie Digate Muth, MD, MPH, RD is a physician and registered dietician, as well as a personal trainer and spokesperson for the American Council on Exercise.
