Ключевые слова: activity, aged, aging, back, body, caucasian, citizen, deep tissue, doctor, elderly, exercise, floor, gun, health, holding, indoors, lying, male, man, manual, massage, massager, massaging, mat, medical, medicine, muscle, old, orthopedic, orthopedist, pain, patient, pensioner, percussion, person, physical, physiotherapist, physiotherapy, professional, rehabilitation, relief, retired, senior, specialist, surgeon, therapist, therapy, treatment, using, worker,