Are You Really Training To Reach Your True Strength Potential?
More than likely you are NOT. Which means you likely have UNTAPPED POTENTIAL!
The two phases of dynamic muscle action are the concentric phase and the eccentric phase. The concentric phase—also known as the positive phase—occurs when a muscle or group of muscles shorten as they contract. The eccentric phase—also known as the negative phase—occurs when a muscle or group of muscles lengthen as they contract. For example, pushing with your hands in a chest press as they extend outward from your chest is a positive contraction, and pushing with your hands as they are pushed back towards your chest is a negative contraction.
Pulling down on a pair of handles as they move down is a positive contraction and pulling down on a pair of handles as they are pulled up away from you is a negative contraction.
All of your skeletal muscles are much stronger during negative contractions. That is, they have a greater capacity to produce force while they are lengthening under tension than while they are shortening under tension; your muscles are under greater tension when you are resisting force than when you are producing force.
And because force production and mechanical tension on the muscles are the “active ingredients” of strength training, it is important to allow the muscles to reach their full force-producing potential in the negative phase of movement. This is the key to ARX equipment; full tension on your muscles both positively AND negatively. This form of adaptive tension is impossible with gravity-based weights.
For maximum benefits from ARX training, it is recommended to include both concentric and eccentric contractions in your workouts to achieve maximal results in strength, hypertrophy, and metabolic conditioning.