Ключевые слова: 1516, 1618, 17 years old, active, aerobic, american, balance, body, caucasian, concentration, equipment, european, exercise, female, fit, fitness, flexibility, girl, gym, gymnastics, healthy, indoor, lifestyle, machine, person, physical, pilates, pilates machine, pose, position, posture, recreation, reformer, russian, sport, strength, stretching, studio, teenage, training, vitality, workout, young, youngster, youth,