Arm pump is simple to understand and 4Arm Strong finally makes it easy to over come. Arm pump is simply muscle pump. The same thing happens to your quads after you go on a bike ride or your chest after doing the bench press. The muscles required to create a movement attract blood which creates a temporary growth of that muscle. The problem with this happening in the forearms is there is a compartment that houses the muscles and there is only so much space. Arm pump is caused by too much blood in a confined area. It is pretty funny when the backyard MX expert lets everyone know that arm pump can be solved by better conditioning and more seat time. 4Arm Strong has clients that are some of the fastest and best conditioned riders in the world that get arm pump without the 4Arm Strong. 4Arm Strong creates more space in the forearm compartment to accommodate the increase in blood. More space, less construction. Less constriction, less arm pump. Pretty simple! #armpump #mx #samx #samotorsport #painrelief #cramping #armpumpexplained #efc #selftherapy (at Edenvale, Gauteng, South Africa)