Measurement of abdominal and back muscle strength with and without low back pain.
D000009:Abdominal Muscles; D000328:Adult; D001415:Back; D001416:Back Pain / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000503:physiopathology*; D005082:Physical Exertion