The Effect of Calisthenics on Strength

"There's no doubt the great byproduct of of calisthenics as punishment is you get stronger," he says. "Even with new guys, if you really want to get through to new guy, what you want them to be good at is tactics, not pushups." He adds: "We're not in here to teach you how to do pushups. Like you need to ... but we want to be better tactical"