Image, Stock Photo Young man doing push-ups outside on grass during his calisthenics workout

Young man doing push-ups outside on grass during his calisthenics workout active activity athlete athletic body bodybuilder bodybuilding calisthenics care caucasian cross effort exercise fit fitness gym gymnastic health healthy lifestyle male man muscular outdoors park person sport sportswear strength strong teenager training wellness workout young camping camp everyday routine mat push-up slow living one power outdoor sportsman powerful