Ключевые слова: accident, adult, african, alone, anatomy, arthritis, athlete, athletic, bad, body, bodybuilder, closeup, exercise, fit, fitness, guy, gym, hand, hands, health, healthy, holding, hurt, inflammation, injury, knee, knee pain, leg, legs, lifestyle, male, man, men, mockup, muscle, natural, pain, people, person, routine, sore, space, sport, sports, strong, train, training, up, wellness, workout,