Evidence-Based Medicine Back Injuries 1 Backache 1 Chronic Disease 1 Chronic diseases 1 Clinical Medicine 1 Epidemiologic Methods 1 Epidemiology 1 Evidence-based medicine 1 Exercise 1 Exercise Therapy 1 Exercise therapy 1 HEALTH & FITNESS -- Diseases 1 Human Development 1 Human Physiology 1 Longitudinal Studies 1 Low Back Pain 1 Microbiology 1 Nutritional Physiological Phenomena 1 Physiological aspects 1 Prevention 1 Public Health 1 prevention & control 1 rehabilitation 1 therapy 1