{"title":"History of swimming and aquatic exercise intervention studies for autism spectrum disorder and attention deficit/hyperactivity disorder","authors":"Kenji Hosokawa, Nozomu Yano, Atsushi Sumimoto","doi":"10.2479/swex.26.1","DOIUrl":"https://doi.org/10.2479/swex.26.1","url":null,"abstract":"","PeriodicalId":187035,"journal":{"name":"Japanese journal of sciences in swimming and water exercise","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134415278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Nara, R. Nabeshima, D. Sato, H. Ichikawa, Y. Baba, Y. Shimoyama
this study investigated the effect of spinal alignment during the streamlined position on passive drag generated by towing. Twenty-three male collegiate swimmers underwent a spinal alignment test and a passive drag test. The spinal alignment test measured the angles of thoracic kyphosis and lumbar lordosis when the participants took the prone streamlined position on land. The spinal alignment data were collected using a Spinal Mouse to record the sagittal outline of the back. The passive drag test at streamlined position was measured by the passive towing method using a towing series comprising four 20-m towing trials at towing speeds of 0.7 m/s, 1.2 m/s, 1.7 m/s, and 2.2 m/s. Significant correlations were found between the angle of thoracic kyphosis and the coefficients of drag at 1.2 m/s, 1.7 m/s, and 2.2 m/s. No significant correlations were found between the angle of lumbar lordosis and coefficient of drag at any towing speed. These results suggest that the angle of thoracic kyphosis during the streamlined position would have a significantly effect on passive drag generated by towing.
{"title":"The effect of spinal alignment in streamlined position on passive drag generated by towing","authors":"R. Nara, R. Nabeshima, D. Sato, H. Ichikawa, Y. Baba, Y. Shimoyama","doi":"10.2479/swex.22.1","DOIUrl":"https://doi.org/10.2479/swex.22.1","url":null,"abstract":"this study investigated the effect of spinal alignment during the streamlined position on passive drag generated by towing. Twenty-three male collegiate swimmers underwent a spinal alignment test and a passive drag test. The spinal alignment test measured the angles of thoracic kyphosis and lumbar lordosis when the participants took the prone streamlined position on land. The spinal alignment data were collected using a Spinal Mouse to record the sagittal outline of the back. The passive drag test at streamlined position was measured by the passive towing method using a towing series comprising four 20-m towing trials at towing speeds of 0.7 m/s, 1.2 m/s, 1.7 m/s, and 2.2 m/s. Significant correlations were found between the angle of thoracic kyphosis and the coefficients of drag at 1.2 m/s, 1.7 m/s, and 2.2 m/s. No significant correlations were found between the angle of lumbar lordosis and coefficient of drag at any towing speed. These results suggest that the angle of thoracic kyphosis during the streamlined position would have a significantly effect on passive drag generated by towing.","PeriodicalId":187035,"journal":{"name":"Japanese journal of sciences in swimming and water exercise","volume":"48 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115783902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study was to examine of countermeasures to infection in swimming competitions under COVID-19 pandemic. In swimming competitions, the same criteria as for other sporting events cannot be used, because participants use the spectators' seats. In a swimming competition, crowded and/or close-contact situations are not formed, since each swimmer uses each lane in the race. However, swimmers in a competition may be crowded in the warm-up pool and locker room. Therefore, it is necessary to consider the control of the number of participants in the swimming competition in the order of the locker room and the warm-up pool. The results of this study show that the number of swimmers using the locker room at the same time is an important factor.
{"title":"Prevention of COVID-19 infection in swimming competitions.","authors":"M. Takahashi, M. Matsunami, Tatsuro Sakai","doi":"10.2479/SWEX.24.7","DOIUrl":"https://doi.org/10.2479/SWEX.24.7","url":null,"abstract":"The purpose of this study was to examine of countermeasures to infection in swimming competitions under COVID-19 pandemic. In swimming competitions, the same criteria as for other sporting events cannot be used, because participants use the spectators' seats. In a swimming competition, crowded and/or close-contact situations are not formed, since each swimmer uses each lane in the race. However, swimmers in a competition may be crowded in the warm-up pool and locker room. Therefore, it is necessary to consider the control of the number of participants in the swimming competition in the order of the locker room and the warm-up pool. The results of this study show that the number of swimmers using the locker room at the same time is an important factor.","PeriodicalId":187035,"journal":{"name":"Japanese journal of sciences in swimming and water exercise","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132779173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"自閉スペクトラム症および注意欠如/多動症を対象とした水泳・水中運動の療育的意義","authors":"K. Hosokawa, Nozomu Yano, Atsushi Sumimoto","doi":"10.2479/swex.26.11","DOIUrl":"https://doi.org/10.2479/swex.26.11","url":null,"abstract":"","PeriodicalId":187035,"journal":{"name":"Japanese journal of sciences in swimming and water exercise","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129046598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"水泳のバイオメカニクス研究における表面筋電図の活用","authors":"K. Yamakawa","doi":"10.2479/swex.24.1","DOIUrl":"https://doi.org/10.2479/swex.24.1","url":null,"abstract":"","PeriodicalId":187035,"journal":{"name":"Japanese journal of sciences in swimming and water exercise","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115011468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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