Ключевые слова: abdomen, abdominal muscle, action, adult, athlete, beautiful, beauty, body, body building, caucasian, effort, exercising, flexing muscles, front view, hand, healthy lifestyle, human muscle, male, male beauty, man, masculinity, muscle, muscular, muscular build, naked, one person, pectoral muscle, posing, power, relaxation exercise, sex symbol, shirtless, shoulder, sport, sports training, strength, the human body, toughness, vitality,