title: Changes in lateral abdominal muscle thickness during an abdominal drawing-in maneuver in individuals with and without low back pain.
abstract: The purpose of this study was to compare lateral abdominal muscle thickness changes in individuals with and without low back pain (LBP) during an abdominal drawing-in maneuver (ADIM) using ultrasound imaging. Twenty individuals (13 females and 7 males, average age 40.1 ± 13.4) with stabilization classification LBP and 19 controls (10 females and 9 males, average age 30.3 ± 8.7) participated in this study. Bilateral measurements were made using ultrasound imaging to determine changes in thickness of the transversus abdominus (TrA) and external and internal oblique (EO+IO) muscles during an ADIM. There were no significant differences in relaxed muscle thickness values or contraction ratios for the TrA or EO+IO between groups or side. Individuals with stabilization classification LBP demonstrated no difference in lateral abdominal muscle thickness during an ADIM when compared with controls without LBP when using a pressure biofeedback device to monitor stability.
authors: University of Virginia-HEALTHSOUTH, Charlottesville, Virginia, USA.
authors: James R
authors: JR
authors: Beazell
authors: Terry L
authors: TL
authors: Grindstaff
authors: Joseph M
authors: JM
authors: Hart
authors: Eric M
authors: EM
authors: Magrum
authors: Martha
authors: M
authors: Cullaty
authors: Francis H
authors: FH
authors: Shen
mesh_terms: D000009:Abdominal Muscles / Q000000981:diagnostic imaging* / Q000502:physiology*; D000328:Adult; D000704:Analysis of Variance; D001676:Biofeedback, Psychology; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000503:physiopathology* / Q000534:rehabilitation*; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D014463:Ultrasonography