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KMID : 1211620060010010059
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Journal of the Korean Society of Physical Medicine
2006 Volume.1 No. 1 p.59 ~ p.66
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Effect of Diaphragmatic Breathing Exercise on Activation of Lumbar Paraspinal Muscles of Healthy people.
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Kim Kyung
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Abstract
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Purpose : The purpose of this study was to investigate the effects of diaphragmatic breathing on activation of lumbar paraspinal muscles of normal healthy people. Diaphragmatic breathing may affect activation of trunk muscles. The assumptions are as follows: the crural diaphragm attatches to the lumbar vertebrae from L1 to L3, the voluntary downward pressurization of the diaphragm increases intra-abdominal pressure, and this increases the stiffness of the spine.
Methods : Sixty male college students ranging 19 to 34 years were screened and % maximal voluntary contraction(% MVC) of trunk muscles on the four positions of back extension exercise was compared during the pre and post of inspiration of diaphragmatic breathing.
Results : 1. % MVC of right and left erector spinae had the statistically significant difference between pre and post inspiration of diaphragmatic breathing in the dynamic right arm and left leg extension position(p<0.05). 2. % MVC of right and left erector spinae had the statistically significant difference between pre and post inspiration of diaphragmatic breathing in the dynamic left arm and right leg extension position(p<0.05). 3. % MVC of right and left erector spinae had the statistically significant difference between pre and post inspiration of diaphragmatic breathing in the static lying prone extension position(p<0.05). 4. % MVC of right and left erector spinae had the statistically significant difference between pre and post inspiration of diaphragmatic breathing in the static lying on prone position(p<0.05).
Conclusion : This study will be used as the purpose of data collection of lumbar paraspinal muscles on diaphragmatic breathing and be introduced as the new therapeutic intervention for management of patients with back pain.
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KEYWORD
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Diaphragmatic breathing exercise, Maximal voluntary contraction, Erector spinae
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