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标题：Kinesiological Analysis of the Bridge Motion
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作者：Hiroyasu IWATSUKI ; Takahiro KIYAMA ; Tatsuo MUROGA 等
期刊名称：Journal of exercise physiology
印刷版ISSN：0912-7100
出版年度：1988
卷号：3
期号：4
页码：243-246
DOI：10.1589/rika1986.3.243
出版社：The Society of Physical Therapy Science
摘要：The aim of this study is to clarify the influence of different starting postures of bridge motion on action potential of musculus gluteus maximus (GM) and hamstrings (Ham) and on loading pressure of the sole. Eight healthy subjects are ordered to assume three different starting postures; lying on their back 1) with the knee drawn up to make an angle of 50 degrees, 2) with the knee drawn up to make an angle of 70 degrees, and 3) with the sole placed on a tier lower floor to make an knee angle of 50 degrees. Every three postures was further divided into two different positions, with the upper limbs raised and attached to the side of body. In starting posture 1) with the upper limbs attached to the side of body, the action potential of GM and Ham showed an increase with the knee angle of 50 and 70 degrees, respectively, and an increase of the electric discharge of Latissimus dorsi musculus was observed with the both knee angles. In starting posture 1) with the upper limbs raised, the action potential of Erector spinae musculus, GM and Ham increased, being not influenced by the knee angle. In case of the starting posture 2), high action potential was observed in GM and Ham. Loading pressure of the sole was approximately 12 % of body weight both in starting postures 1) and 2).
关键词：bridge motion; surface electromyogram; loading pressure