Ключевые слова: active, attitude, back exercise, back training, balance, body, bosu, bosu ball, class, coordination, course, elderly, equilibrium, exercise, exerciser, fit, fitness, fitness center, group, gym, gymnastics, health, health club, healthy, man, movement, old, pensioner, people, physical therapy, physiotherapist, physiotherapy, rehab, rehabilitation, rehabilitation sports, retired, retiree, senior, senior citizen, senior citizens, seniors, sport, sporty, studio, therapy, total body workout, training, vital, wall bars, woman,