Ключевые слова: activity, american, back, bed, britain, caucasian, class, concentration, effort, elderly, equipment, european, exercise, female, fit, fitness, flexibility, focused, france, germany, gym, healthy, indoors, lifestyle, machine, mature, old, people, personal, physical, physique, pilates, positive, practice, reformer, relaxation, sport, sportswear, stretch, studio, training, usa, wellbeing, wellness, women, workout, young,