Gliding performance is affected by cranial movement of abdominal organs

Abstract Swimming is an extremely popular sport around the world. The streamlined body position is a crucial and foundational position for swimmers. Since the density of lungs is low, the center of buoyancy is always on the cranial side and the center of gravity is always on the caudal side. It has...

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Autores principales:	Naoki Yoshida, Hideki Ota, Satoshi Higuchi, Yusuke Sekiguchi, Takaaki Kakihana, Haruka Sato, Tomoyoshi Kimura, Shin-Ichi Izumi, Masahiro Kohzuki
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d4f109b2401245da92da2e17c0b03ef6
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spelling	oai:doaj.org-article:d4f109b2401245da92da2e17c0b03ef62021-12-02T11:43:36ZGliding performance is affected by cranial movement of abdominal organs10.1038/s41598-020-78609-32045-2322https://doaj.org/article/d4f109b2401245da92da2e17c0b03ef62020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78609-3https://doaj.org/toc/2045-2322Abstract Swimming is an extremely popular sport around the world. The streamlined body position is a crucial and foundational position for swimmers. Since the density of lungs is low, the center of buoyancy is always on the cranial side and the center of gravity is always on the caudal side. It has been reported that the greater the distance between the centers of buoyancy and gravity, the swimmer’s legs will sink more. This is disadvantageous to swimming performance. However, the way to reduce the distance between the centers of buoyancy and gravity is yet to be elucidated. Here we show that swimmers with high gliding performance exhibit different abdominal cavity shapes in the streamlined body position, which causes cranial movement of the abdominal organs. This movement can reduce the distance between the centers of buoyancy and gravity, prevent the legs from sinking, and have a positive effect on gliding performance.Naoki YoshidaHideki OtaSatoshi HiguchiYusuke SekiguchiTakaaki KakihanaHaruka SatoTomoyoshi KimuraShin-Ichi IzumiMasahiro KohzukiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Naoki Yoshida Hideki Ota Satoshi Higuchi Yusuke Sekiguchi Takaaki Kakihana Haruka Sato Tomoyoshi Kimura Shin-Ichi Izumi Masahiro Kohzuki Gliding performance is affected by cranial movement of abdominal organs
description	Abstract Swimming is an extremely popular sport around the world. The streamlined body position is a crucial and foundational position for swimmers. Since the density of lungs is low, the center of buoyancy is always on the cranial side and the center of gravity is always on the caudal side. It has been reported that the greater the distance between the centers of buoyancy and gravity, the swimmer’s legs will sink more. This is disadvantageous to swimming performance. However, the way to reduce the distance between the centers of buoyancy and gravity is yet to be elucidated. Here we show that swimmers with high gliding performance exhibit different abdominal cavity shapes in the streamlined body position, which causes cranial movement of the abdominal organs. This movement can reduce the distance between the centers of buoyancy and gravity, prevent the legs from sinking, and have a positive effect on gliding performance.
format	article
author	Naoki Yoshida Hideki Ota Satoshi Higuchi Yusuke Sekiguchi Takaaki Kakihana Haruka Sato Tomoyoshi Kimura Shin-Ichi Izumi Masahiro Kohzuki
author_facet	Naoki Yoshida Hideki Ota Satoshi Higuchi Yusuke Sekiguchi Takaaki Kakihana Haruka Sato Tomoyoshi Kimura Shin-Ichi Izumi Masahiro Kohzuki
author_sort	Naoki Yoshida
title	Gliding performance is affected by cranial movement of abdominal organs
title_short	Gliding performance is affected by cranial movement of abdominal organs
title_full	Gliding performance is affected by cranial movement of abdominal organs
title_fullStr	Gliding performance is affected by cranial movement of abdominal organs
title_full_unstemmed	Gliding performance is affected by cranial movement of abdominal organs
title_sort	gliding performance is affected by cranial movement of abdominal organs
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/d4f109b2401245da92da2e17c0b03ef6
work_keys_str_mv	AT naokiyoshida glidingperformanceisaffectedbycranialmovementofabdominalorgans AT hidekiota glidingperformanceisaffectedbycranialmovementofabdominalorgans AT satoshihiguchi glidingperformanceisaffectedbycranialmovementofabdominalorgans AT yusukesekiguchi glidingperformanceisaffectedbycranialmovementofabdominalorgans AT takaakikakihana glidingperformanceisaffectedbycranialmovementofabdominalorgans AT harukasato glidingperformanceisaffectedbycranialmovementofabdominalorgans AT tomoyoshikimura glidingperformanceisaffectedbycranialmovementofabdominalorgans AT shinichiizumi glidingperformanceisaffectedbycranialmovementofabdominalorgans AT masahirokohzuki glidingperformanceisaffectedbycranialmovementofabdominalorgans
_version_	1718395371628003328

Gliding performance is affected by cranial movement of abdominal organs

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