Gliding performance is affected by cranial movement of abdominal organs

Naoki Yoshida, Hideki Ota, Satoshi Higuchi, Yusuke Sekiguchi, Takaaki Kakihana, Haruka Sato, Tomoyoshi Kimura, Shin Ichi Izumi, Masahiro Kohzuki

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number21430
JournalScientific reports
Volume10
Issue number1
DOIs
Publication statusPublished - 2020 Dec
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Gliding performance is affected by cranial movement of abdominal organs'. Together they form a unique fingerprint.

Cite this