Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes
Limited data are available on athlete’s heart for rugby athletes. This study aimed to investigate cardiac structure and its relationship with cardiorespiratory fitness in young Japanese rugby athletes. A prospective cross-sectional study using echocardiography and cardiopulmonary exercise testing (C...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Journal of Cardiovascular Development and Disease |
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| Online Access: | https://www.mdpi.com/2308-3425/10/1/12 |
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| author | Yoshitaka Iso Hitomi Kitai Keiko Ichimori Megumi Kubota Miki Tsujiuchi Sakura Nagumo Tsutomu Toshida Toru Yonechi Mio Ebato Hiroshi Suzuki |
| author_facet | Yoshitaka Iso Hitomi Kitai Keiko Ichimori Megumi Kubota Miki Tsujiuchi Sakura Nagumo Tsutomu Toshida Toru Yonechi Mio Ebato Hiroshi Suzuki |
| author_sort | Yoshitaka Iso |
| collection | DOAJ |
| description | Limited data are available on athlete’s heart for rugby athletes. This study aimed to investigate cardiac structure and its relationship with cardiorespiratory fitness in young Japanese rugby athletes. A prospective cross-sectional study using echocardiography and cardiopulmonary exercise testing (CPET) was conducted on 114 male collegiate rugby players. There was a higher prevalence of increased left ventricular (LV), atrial, and aortic dimensions in the young athletes than that in previously published reports, whereas the wall thickness was within the normal range. Anthropometry and CPET analyses indicated that the forwards and backs presented muscular and endurance phenotypes, respectively. Indexed LV and aortic dimensions were significantly larger in the backs than in the forwards, and the dimensions significantly correlated with oxygen uptake measured by CPET. On the four-tiered classification for LV hypertrophy, abnormal LV geometry was found in 16% of the athletes. Notably, the resting systolic blood pressure was significantly higher in athletes with concentric abnormal geometry than in the other geometry groups, regardless of their field positions. Japanese young athletes may exhibit unique phenotypes of cardiac remodeling in association with their fitness characteristics. The four-tiered LV geometry classification potentially offers information regarding the subclinical cardiovascular risks of young athletes. |
| first_indexed | 2024-03-09T12:13:54Z |
| format | Article |
| id | doaj.art-7ac3ca8293084dc4af3448c65d62e400 |
| institution | Directory Open Access Journal |
| issn | 2308-3425 |
| language | English |
| last_indexed | 2024-03-09T12:13:54Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Cardiovascular Development and Disease |
| spelling | doaj.art-7ac3ca8293084dc4af3448c65d62e4002023-11-30T22:49:07ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252023-01-011011210.3390/jcdd10010012Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby AthletesYoshitaka Iso0Hitomi Kitai1Keiko Ichimori2Megumi Kubota3Miki Tsujiuchi4Sakura Nagumo5Tsutomu Toshida6Toru Yonechi7Mio Ebato8Hiroshi Suzuki9Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDepartment of Clinical Pathology and Laboratory, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDepartment of Clinical Pathology and Laboratory, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanFaculty of Sport Science, Nippon Sport Science University, Yokohama 227-0033, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanDivision of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama 227-8501, JapanLimited data are available on athlete’s heart for rugby athletes. This study aimed to investigate cardiac structure and its relationship with cardiorespiratory fitness in young Japanese rugby athletes. A prospective cross-sectional study using echocardiography and cardiopulmonary exercise testing (CPET) was conducted on 114 male collegiate rugby players. There was a higher prevalence of increased left ventricular (LV), atrial, and aortic dimensions in the young athletes than that in previously published reports, whereas the wall thickness was within the normal range. Anthropometry and CPET analyses indicated that the forwards and backs presented muscular and endurance phenotypes, respectively. Indexed LV and aortic dimensions were significantly larger in the backs than in the forwards, and the dimensions significantly correlated with oxygen uptake measured by CPET. On the four-tiered classification for LV hypertrophy, abnormal LV geometry was found in 16% of the athletes. Notably, the resting systolic blood pressure was significantly higher in athletes with concentric abnormal geometry than in the other geometry groups, regardless of their field positions. Japanese young athletes may exhibit unique phenotypes of cardiac remodeling in association with their fitness characteristics. The four-tiered LV geometry classification potentially offers information regarding the subclinical cardiovascular risks of young athletes.https://www.mdpi.com/2308-3425/10/1/12athlete’s heartrugbyyoung athletescardiopulmonary exercise testing |
| spellingShingle | Yoshitaka Iso Hitomi Kitai Keiko Ichimori Megumi Kubota Miki Tsujiuchi Sakura Nagumo Tsutomu Toshida Toru Yonechi Mio Ebato Hiroshi Suzuki Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes Journal of Cardiovascular Development and Disease athlete’s heart rugby young athletes cardiopulmonary exercise testing |
| title | Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes |
| title_full | Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes |
| title_fullStr | Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes |
| title_full_unstemmed | Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes |
| title_short | Cardiac Structure and Cardiorespiratory Fitness in Young Male Japanese Rugby Athletes |
| title_sort | cardiac structure and cardiorespiratory fitness in young male japanese rugby athletes |
| topic | athlete’s heart rugby young athletes cardiopulmonary exercise testing |
| url | https://www.mdpi.com/2308-3425/10/1/12 |
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