Comparison of injury risk indicators in amateur female rugby players from different countries
Background: Most specific rugby movements require an efficient stretch-shortening cycle (SSC). Reactive strength index (RSI) and leg stiffness have been considered a reliable measure of SSC capability and an indicator of ACL injury risk. The aim of this study was to assess and compare absolute leg s...
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Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie
2024-03-01
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| Series: | Journal of Kinesiology and Exercise Sciences |
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| Online Access: | http://jkes.eu/gicid/01.3001.0054.6755 |
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| author | Ondřej Sikora Michal Lehnert |
| author_facet | Ondřej Sikora Michal Lehnert |
| author_sort | Ondřej Sikora |
| collection | DOAJ |
| description | Background: Most specific rugby movements require an efficient stretch-shortening cycle (SSC). Reactive strength index (RSI) and leg stiffness have been considered a reliable measure of SSC capability and an indicator of ACL injury risk. The aim of this study was to assess and compare absolute leg stiffness (ALS) and RSI in amateur female rugby players from different countries.Methods: Players of three female rugby teams participated in the study: the female Czech team, the junior female Czech team, and the female university English team. Twenty repetitions of the submaximal bilateral hopping test were used for the calculation of ALS. RSI was obtained from 5 repetitions of the maximum hop test. Results: The values of the basic statistics were as follows: the female Czech team (median, mean SD): ALS, 25.3 kNm–1, 25.4 3.6 kNm–1; RSI, 0.53, 0.60 0.24; the junior female Czech team (median, mean SD): ALS, 22.7 kNm–1, 23.1 4.6 kNm–1; RSI, 0.37, 0.42 0.19, and the female university English team (median, mean SD): ALS, 22.7 kNm–1, 24.0 3.5 kNm–1; RSI, 0.61, 0.59 0.20. Only a between-group comparison of RSI of the female Czech team and the junior female Czech team (p = 0.04, r = 0.37, medium effect) showed significant differences. Conclusion: No significant differences between groups were found, except for Czech teams of different ages in RSI. The lower values of ALS and RSI compared to other studies can potentially be associated with a higher risk of ACL injury. |
| format | Article |
| id | doaj-art-ab8d420056b14e128d96f52434dba5b3 |
| institution | Kabale University |
| issn | 2956-4581 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie |
| record_format | Article |
| series | Journal of Kinesiology and Exercise Sciences |
| spelling | doaj-art-ab8d420056b14e128d96f52434dba5b32025-08-20T04:02:06ZengAkademia Wychowania Fizycznego im. Bronisława Czecha w KrakowieJournal of Kinesiology and Exercise Sciences2956-45812024-03-0134107404410.5604/01.3001.0054.675501.3001.0054.6755Comparison of injury risk indicators in amateur female rugby players from different countriesOndřej Sikora0Michal Lehnert1Palacký University Olomouc, Faculty of Physical Culture, the Czech RepublicPalacký University Olomouc, Faculty of Physical Culture, the Czech RepublicBackground: Most specific rugby movements require an efficient stretch-shortening cycle (SSC). Reactive strength index (RSI) and leg stiffness have been considered a reliable measure of SSC capability and an indicator of ACL injury risk. The aim of this study was to assess and compare absolute leg stiffness (ALS) and RSI in amateur female rugby players from different countries.Methods: Players of three female rugby teams participated in the study: the female Czech team, the junior female Czech team, and the female university English team. Twenty repetitions of the submaximal bilateral hopping test were used for the calculation of ALS. RSI was obtained from 5 repetitions of the maximum hop test. Results: The values of the basic statistics were as follows: the female Czech team (median, mean SD): ALS, 25.3 kNm–1, 25.4 3.6 kNm–1; RSI, 0.53, 0.60 0.24; the junior female Czech team (median, mean SD): ALS, 22.7 kNm–1, 23.1 4.6 kNm–1; RSI, 0.37, 0.42 0.19, and the female university English team (median, mean SD): ALS, 22.7 kNm–1, 24.0 3.5 kNm–1; RSI, 0.61, 0.59 0.20. Only a between-group comparison of RSI of the female Czech team and the junior female Czech team (p = 0.04, r = 0.37, medium effect) showed significant differences. Conclusion: No significant differences between groups were found, except for Czech teams of different ages in RSI. The lower values of ALS and RSI compared to other studies can potentially be associated with a higher risk of ACL injury.http://jkes.eu/gicid/01.3001.0054.6755preventionreactive strength indexleg stiffnessanterior cruciate ligament |
| spellingShingle | Ondřej Sikora Michal Lehnert Comparison of injury risk indicators in amateur female rugby players from different countries Journal of Kinesiology and Exercise Sciences prevention reactive strength index leg stiffness anterior cruciate ligament |
| title | Comparison of injury risk indicators in amateur female rugby players from different countries |
| title_full | Comparison of injury risk indicators in amateur female rugby players from different countries |
| title_fullStr | Comparison of injury risk indicators in amateur female rugby players from different countries |
| title_full_unstemmed | Comparison of injury risk indicators in amateur female rugby players from different countries |
| title_short | Comparison of injury risk indicators in amateur female rugby players from different countries |
| title_sort | comparison of injury risk indicators in amateur female rugby players from different countries |
| topic | prevention reactive strength index leg stiffness anterior cruciate ligament |
| url | http://jkes.eu/gicid/01.3001.0054.6755 |
| work_keys_str_mv | AT ondrejsikora comparisonofinjuryriskindicatorsinamateurfemalerugbyplayersfromdifferentcountries AT michallehnert comparisonofinjuryriskindicatorsinamateurfemalerugbyplayersfromdifferentcountries |