Physical fitness 206 Exercise 66 Physical education and training 33 Testing 27 Health 26 Physiological aspects 25 Sports 21 Health and hygiene 14 Nutrition 14 Congresses 13 Aerobic exercises 8 Training 7 Athletes 6 Evaluation 6 Physical fitness for women 6 Recreation 6 Athletic ability 5 Older people 5 Physical fitness for children 5 Prevention 5 Psychological aspects 5 Sports medicine 5 Exercise therapy 4 Health aspects 4 Middle-aged persons 4 Nutritional aspects 4 Periodicals 4 Physical fitness centers 4 Physiological effect 4 Running 4