Shaolin Feats of Strength ~The only spiritual discipline I know of that incorporates strenuous physical rituals into it's practices, and therefore the best. ~ Physical prowess is paramount in Nature, which is God's Design.
Climbing pegboards are fantastic exercises for building forearm strength and hand grip. They& the perfect workout for rock climbing and bouldering, or really any sport that requires upper body strength. Gyms don& often feature climbing peg boards.