ARX Seated Chest Press (Isometric Contraction)
ARX Adaptive Resistance Training. Precisely measure your resistance every step of the way and compare your numbers with previous workouts to see where you progressed or regressed. 3 different types of contractions you can isolate or combine with the ARX (Isometric, Concentric, Eccentric). Seated Chest Press. Isometric Contraction for 30 seconds.