The Zlagboard comes with a built-in Forearm Endurance Workout protocol. The idea behind the method is to generate a severe forearm pump, targeting the anaerobic lactic energy system and improving both the physiological and psychological tolerance to high acidic loads. While not very climbing-specific, the Zlagboard Forearm Endurance Workout might be just what you need to get you through long, hard, and pumpy cruxes. Boulderers may also benefit from faster regeneration between attempts, as well as from muscle hypertrophy caused by growth hormone release triggered by lowered blood pH. Go ahead and give the Zlagboard Forearm Endurance Workout a try if you like suffering, but keep your climbing goals in mind!