OYO Fitness



A 16-week study commissioned by NASA found both the free-weight and SpiraFlex groups gained similar improvements in strength and muscular hypertrophy, with significant increases in lean muscle mass. Lean muscle is the body’s most efficient fat burner.

Over 50 NASA crew members used the SpiraFlex Resistance Exercise Device to maintain bone and muscle in zero gravity during their 5 to 6 months on the International Space Station.

Weights have safety issues, including straining, losing balance, and joint stress from stopping and starting momentum. Weights also have portability issues. Resistance bands produce progressive resistance (like rubber bands), thus the muscle is not fully activated until full extension. SpiraFlex creates smooth linear isotonic resistance like free-weights – without weight.

SpiraFlex technology not only powered NASA’s first strength training device, but also one of the best and highest selling home gyms — the Bowflex Revolution.

  1. Inventor, Paul Francis, with the SpiraFlex Resistance Exercise Device.

  2. SpiraFlex FlexPack used in the OYO Portable Gym

  3. Astronaut Leroy Chiao working out with the SpiraFlex Resistance Exercise Device on the International Space Station

OYO Fitness is more than just your fitness solution, it’s about creating a culture of On Your Own health, fitness, and empowerment. We reached out to OYO Gym users for On Your Own Stories to learn what keeps them motivated and what inspired them to start their fitness journey with us.

Runner, cyclist, and roller derby skater James Brains wrote a great OYO Personal Gym review recently in Business Insider. He offers some excellent information and feedback that’s well worth reading if you are considering purchasing an OYO Gym.

In summation of his experience, Brains said, “Overall, I am surprised by how helpful the OYO Personal Gym is. As a runner, cyclist, and roller derby skater, I primarily focus on my legs and have neglected my upper body for decades. Consequently, I suffer from chronic back pain. The OYO Personal Gym changed all of this. Now, I have an easy way to fit a challenging full-body workout into my fitness regimen without having to leave my home. I strongly recommend the OYO to anyone interested in improving their overall physical fitness. I also suggest that you seriously commit to the 10-Week Challenge if you do give the OYO a shot.”