Charles River Fitness is an independent training facility that specializes in one-on-one/two-on-one personal training and sport-specific strengthening and conditioning.

Steve Steinberg has been in the fitness industry for more than 15 years as a trainer, teacher, and writer. As a trainer and corrective exercise specialist (CES), he's helped folks rediscover their bodies and rekindle their passion for movement. He's helped clients become stronger and more confident than they believed they could become. He's helped people achieve their goals and successfully rehab from injury. He's helped pro basketball players increase mobility and stability and golfers and tennis players improve accuracy and power.


As a writer, he's co-authored three books. Hang the Banner, released in October 2022, is a golf strength and conditioning book written with the top two golf fitness trainers in the world and features some of the top players on the planet like Dustin Johnson, Justin Thomas, Lexi Thompson, and more. It's a joint-by-joint analysis of the golf swing that lets readers understand exactly how the body has to work from address to follow-through.

It's a follow-up to Fix Your Body, Fix Your Swing -- a ground-breaking and best-selling book written with legendary golf biomechanics coach, Joey Diovisalvi, that forever changed the way folks looked at golf strength and conditioning.

As a contributing editor at Men's Journal, he wrote articles covering everything from the best ways to avoid groin pulls to the best ways to improve your surfing. His work has also appeared in magazines like GQ and Best Life and on a zillion different websites -- the coolest probably being CNN.com.


Charles River Fitness's private and spacious studio is located in the heart of Waltham's Moody Street business district.