NASA SPIRAFLEX TECHNOLOGY REPLACES WEIGHTS: The OYO Gym’s SpiraFlex resistance technology has been used for over 10 years on the International Space Station to keep astronauts fit. NASA study proved SpiraFlex increased muscle size and strength as much as free-weights.
★GET LEAN & FIT FAST: SpiraFlex builds lean muscle that burns fat, even at rest. Patented DoubleFlex activation provides resistance to opposing muscle groups in each movement, so you can build a balanced body in less time.
★TOTAL BODY FITNESS: Snap on FlexPacks in 5 & 10 lb. increments for up to 25 lbs. of smooth resistance, feels linear (equal) through the range of motion like free-weights, not progressive like resistance bands. The OYO Gym is proven to strengthen and shape your body where you are right now
★ALL IN ONE PORTABLE GYM: Includes (1) 5 lb. and (2) 10 lb. FlexPacks (25 lbs. of resistance), Leg & Door Anchors, Nutrition Guide & Membership in the OYO Fitness Club for free online access to over 60 workout and 197 exercise videos. Free OYO Coaching App for Apple iPhone users. Built to last with Three Year Warranty.
Free-weights work great but are not portable, and trying to control momentum can cause joint pain. Resistance bands produce progressive resistance (like rubber bands), which means the muscle is only fully activated at the end of the movement.
SpiraFlex resistance is smooth and linear like free-weights, without the weight or the momentum. SpiraFlex FlexPacks rated at 5 and 10 lbs snap onto the OYO Personal Gym, providing up to 25 lbs of gym-quality resistance (feels like more, as you can't use momentum like weights), yet this gym weighs only 2 lbs.
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