Ключевые слова: abdominal, abdominal muscle, abs, adult, athlete, biceps, body building, body building exercises, bodybuilding, caucasian, chest, exercising, fit, guy, gym, handsome, health and fitness, healthy lifestyle, human muscle, indoors, lifestyles, machine, male, man, model, muscular build, picking up, power, relaxation exercise, sport, sports and fitness, sports training, strength, strong, the human body, weight training,