Peripheral Heart Action | PHA Training
What Is Peripheral Heart Action (PHA) Training? According to the National Academy of Sports Medicine (NASM), PHA training is similar to circuit training in that you move from exercise to exercise with little to no rest, but with PHA training, you purposely alternate between upper- and lower-body movements. “The blood circulates between your upper and lower body and builds better muscle strength and endurance because you can maximize your efforts—you aren’t maxing out on one muscle group for too long,” Tamir says. While the upper-to-lower-body format of a PHA workout is fixed, ther...