Ключевые слова: alternative, alternative therapy, back, back pain, backache, body, caucasian, chiropractic, clinic, doctor, electric, electrical, electro massage, equipment, health care, human, injury, male, man, massage, medical, medicine, men, muscle, nerve, nerve stimulation, pain, patient, people, percussion, physical, physical therapy, physiotherapy, professional, recovery, rehab, rehabilitation, relaxation, spine, sports doctor, stimulation, stimulator, support, technology, therapist, therapy, treatment, upper back, vertebrae,