15 Benefits of 90 Degree Training. New Motus Flex from Vivobarefoot code DRJOEL20. The most comfortable shoe ever. 1.More Muscle Growth from more muscle activation & motor unit recruitment. 2. Healthier Joints because you’re not destroying your cartilage from deep ROM. 3. Increased Strength & ability to safely handle heavy loads without injury or pain. 4. More Stability from greater motor control since 90 = max co-contraction & stiffness. 5. Improved Recovery since you’re not creating excessive