Ключевые слова: adult, african, athletes, athletic, attractive, body, box, caucasian, cell phone, classmates, crosstraining, eight, equipment, ethnicity, exercise, fellowship, female, fitness, fun, girl, group, gym, gym mates, happy, healthy, horizontal, indoor, international, lifestyle, male, man, men, mobile, multi ethnic, people, person, selfie, shirtless sportsman, smiling, sport center, sportive, sportsman, sportswear, sportswoman, thumbs up, training, woman, women, workout,