Fatigue of abdominal and paraspinal muscles during sustained loading of the trunk in the coronal plane Kelly Thomas, BAppSc, Raymond Y.W. Lee, PhD Archives.

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Fatigue of abdominal and paraspinal muscles during sustained loading of the trunk in the coronal plane Kelly Thomas, BAppSc, Raymond Y.W. Lee, PhD Archives of Physical Medicine and Rehabilitation Volume 81, Issue 7, Pages 916-920 (July 2000) DOI: 10.1053/apmr.2000.5577 Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 1 The experimental set up. Subject stood upright inside a restraint frame while a lateral bend load was applied. Archives of Physical Medicine and Rehabilitation 2000 81, 916-920DOI: (10.1053/apmr.2000.5577) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 2 The mean median frequency of the power spectrum of the EMG signals of the trunk muscles for (A) 20%, (B) 40%, and (C) 60% of maximal lateral bend exertion. LES, lumbar erector spinae; TES, thoracic erector spinae; RA, rectus abdominus; EO, external abdominal oblique; IO, internal abdominal oblique. Archives of Physical Medicine and Rehabilitation 2000 81, 916-920DOI: (10.1053/apmr.2000.5577) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig. 3 The total power of the EMG signals of the trunk muscles for (A) 20%, (B) 40%, and (C) 60% of maximal lateral bend exertion. LES, lumbar erector spinae; TES, thoracic erector spinae; RA, rectus abdominus; EO, external abdominal oblique; IO, internal abdominal oblique. Archives of Physical Medicine and Rehabilitation 2000 81, 916-920DOI: (10.1053/apmr.2000.5577) Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions