What is Time Under Tension?
An important principle of The Gravity Ball Method™ that we like to demonstrate for new Gravity Ball™ users is the concept of Time Under Tension.
Time Under Tension: The Gravity Ball Method
Sep 19, 2018 4:22:53 PM / by Gravity Ball™ posted in Gravity Ball, Grip-Free Resistance Exercise, hands-free, lower body, The Gravity Ball Method, TimeUnderTension, Core Strength, New, New Product, Resistance Exercise, upper body