スポーツ選手の利き腕側棘上、棘下筋萎縮に関する研究、主としてその発生機序に関する考察
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概要
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Investigations were carried out on atrophy of the supraspinatus and infraspinatus muscles on the whip hand side of various athletes who severely stress the shoulder joints as well as basic studies on the mechanism of development of such muscular atrophy. The following results were obtained. 1) Among the various sports investigated baseball and handball player and javelin throwers who habitually use an overhand throwing motion most frequently showed atrophy of the supraspinatus and infraspinatus muscles. Its incidence was particularly high in baseball players and muscle atrophy is pronounced in a majority of such players, especially pitchers. 2) Analytical study of the complaints of those with muscular atrophy of the supraspinatus and infraspinatus revealed that the atrophy is most probaly caused by excessive irritation to the suprascapular nerve in a majority of cases. Suprascapular nerve blockade in the region of the suprascapular notch caused an alleviation or disappearance of most complaints. 3) Anatomical study of the suprascapular nerve confirmed that tension to the nerve occurs in the portion between the bifurcation of the brachial plexus and the suprascapular notch during movement of the shoulder joints. It was also confirmed that minor trauma to the nerve is possible at the region of the suprascapular notch when the suprascapular nerve is on the stretch. 4) Measurement of suprascapular nerve tension by setting the arm in autopsy materials in a motion necessary for ball throwing confirmed that the nerve tension is maximal in a condition immediately before the stride in an overhand pitch followed by the follow-through motion. 5) From the results of this study atrophy of the supraspinatus and infraspinatus muscles in athletes using an overhand throwing motion is probably more common than suspected. It was inferred that the cause for this is the repeated infliction of minor trauma to the suprascapular nerve in the region of the suprascapular notch which gradually progresses to atrophy.
- 日本体力医学会の論文
- 1972-03-01
著者
関連論文
- スポーツ選手の利き腕側棘上、棘下筋萎縮に関する研究、主としてその発生機序に関する考察
- 6. スポーツ障害としての棘上、棘下筋萎縮 : 第24回日本体力医学会総会シンポジウム : I スポーツ障害の特殊性
- スポーツ選手の利き腕側棘上、棘下筋萎縮について