Ключевые слова: 30s, 60s, active, adult, aged, american, balls, belgian, body, caucasian, class, czech, different, diversity, elderly, energy, equipment, european, female, fit, fitness, flexibility, french, friendship, german, group, gym, healthy, hungarian, lifestyle, male, man, mature, mixed, pilates, position, practicing, slovenian, sport, sportive, stretching, studio, together, training, woman, working, workout, yoga, young,