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    A study Investigating the effects of osteopathic muscle energy technique on the viscoelasticity of skeletal muscle

    Al Araji, Ghassan

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    Date
    2006
    Citation:
    Al Araji, G. Y. (2006). A study Investigating the effects of osteopathic muscle energy technique on the viscoelasticity of skeletal muscle. Unpublished thesis submitted in partial fulfillment of the degree of Master of Osteopathy, Unitec New Zealand, New Zealand.
    Permanent link to Research Bank record:
    https://hdl.handle.net/10652/1348
    Abstract
    This study was performed to investigate the effects of an osteopathic treatment technique (muscle energy technique) on the viscoelasticity of skeletal muscle (biceps brachii). Fifteen 18-30 year old healthy non obese right handed male volunteers participated. Data collection was undertaken over four days with each subject attending two sessions separated by an interval of 1 day. On day one, three measurements of muscle viscoelasticity (stiffness, power of resistance) were taken from each individual participant’s left biceps brachii muscle. Measurements were made using a purpose designed force dial viscoelastometer. This device is designed to perform incremental compression of tissue and to calculate stress - strain data for muscle tissue during periods of controlled deformation. On day two, three measurements were again taken followed by five 10 second cycles of muscle energy technique on the subject’s left biceps brachii muscle; three further measurements were again taken post intervention. Analysis of deflection and resistance of the measuring probe was then plotted as a linear equation (y = kx +b). The deformed muscle tissue was conceptually modelled and represented using 3 subsequent springs in series, representing 3 different compartments (layers) of skeletal muscle. Indices of total compressive stiffness of skeletal muscle and specific power of resistance during tissue compression were calculated using multiple mathematical formulas. A comparative statistical analysis between pre-intervention and post-intervention data was performed with the single tailed paired samples t-test from the software program SPSS 12.0.1 for Windows. There was no significant difference in stiffness (95% CI = -0.06419 to 0.23786 degrees; t = 1.233; df = 14; P < 0.238) and power of resistance (95% CI = -0.00804 to 0.01988 degrees; t = -0.910; df = 14; P < 0.378) between pre-intervention and post-intervention states. After intervention the stiffness and power of resistance of the biceps brachii muscle did not decrease. The Cohen’s d post-hoc test showed that the effect size of the intervention was considered to be small, low, minor. No significant individual difference was demonstrated in terms of the stiffness (95% CI = -0.36715 to 0.07369 degrees; t = -1.428; df = 14; P < 0.175) and power of resistance (95% CI = -0.02503 to 0.01245 degrees; t = -0.719; df = 14; P < 0.484) between pre-intervention (baseline) trials for each subject. This study demonstrates that muscle energy technique did not decrease indices of viscoelasticity (stiffness and power of resistance) of the biceps brachii muscle. These findings encourage further research on the physiological background of MET.
    Keywords:
    Muscle energy technique, Muscle viscoelasticity
    ANZSRC Field of Research:
    110499 Complementary and Alternative Medicine not elsewhere classified
    Degree:
    Master of Osteopathy (School of Health Science)
    Supervisors:
    Gutnik, Boris; Nash, Derek
    Copyright Holder:
    Ghassan Al Araji
    Rights:
    This digital work is protected by copyright. It may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: Any use you make of these documents or images must be for research or private study purposes only, and you may not make them available to any other person. You will recognise the author's and publishers rights and give due acknowledgement where appropriate.
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    • Osteopathy Dissertations and Theses [195]

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