The effect of bending and rotation of the trunk on the intra-abdominal pressure and the erector spinae muscle when lifting while sitting.
D000005:Abdomen; D000293:Adolescent; D000328:Adult; D001415:Back / Q000502:physiology*; D006804:Ergonomics; D006801:Humans; D008297:Male; D009068:Movement; D009132:Muscles / Q000502:physiology*; D005082:Physical Exertion; D011312:Pressure; D012399:Rotation