Ключевые слова: 55s, activity, aerobic, american, balance, ball, center, club, concentration, elderly, equipment, european, exercising, female, fitness, flexible, german, gym, gymnastic, healthy, indoor, leisure, mat, mature, motion, person, physical, pilates, portrait, position, practice, s3niorlife, senior, soft, softball, sporty, stretch, stretching, training, weight, woman, workout, yoga,