The effects of different sit- and curl-up positions on activation of abdominal and hip flexor musculature.
D000009:Abdominal Muscles / Q000502:physiology*; D000328:Adult; D004576:Electromyography; D015444:Exercise / Q000502:physiology; D005528:Foot / Q000502:physiology; D006615:Hip / Q000502:physiology*; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology; D007717:Knee / Q000502:physiology; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D014891:Weight Lifting / Q000502:physiology*; D055815:Young Adult