Muscle Contractions

Being able to safely maximize force through the entire range of motion in all three phases of a muscle contraction (concentric, isometric, and eccentric) is crucial for developing maximum strength and muscle mass. QuickHIT's exercise machines are engineered to provide the exact level of resistance necessary to safely and effectively maximize force throughout the entire range of motion no matter how strong you are.

mobile friendly strong blonde man pointing at bulging bicep muscle
graph explaining difference between isometric eccentric and concentric movements during exercise
Going Negative

QuickHIT's focus on eccentric contractions is key to unlocking the body's full potential for generating force. During eccentric contractions you can generate 40% more force than in the concentric contraction.  QuickHIT's machines are designed to be incredibly powerful, allowing for the safe and effective generation of maximum force throughout all phases of the muscle contraction.

*Lance C. Dalleck1, Aidan M. Dalleck1, Bryant R. Byrd1. Personalized, Adaptive Resistance Training is Superior to Traditional Resistance Exercise – A Randomized, Controlled Trial. 1High Altitude Exercise Physiology Program, Western Colorado University, Gunnison, CO, USA.