Apr 1, 2021 Ravina Kumari What are push-ups? Push-up is a no-equipment full-body compound exercise that engages all the muscle of your body, right from your head to toe. iStock Muscles targeted The main group of muscles activated in this exercise includes your chest, shoulders, back, triceps, biceps and serratus anterior. Canva Calories burnt A person weighing 77 kilos can burn approximately 12 calories by doing 20 push-ups in a minute. iStock