A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players
The aim of this study was to identify between-position (forwards vs. backs) differences in movement variability in cumulative tackle events training during both attacking and defensive roles. Eleven elite adolescent male rugby league players volunteered to participate in this study (mean ± SD, age...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Termedia Publishing House
2022-02-01
|
| Series: | Biology of Sport |
| Subjects: | |
| Online Access: | https://www.termedia.pl/A-novel-application-of-entropy-analysis-for-assessing-changes-in-movement-variability-during-cumulative-tackles-in-young-elite-rugby-league-players,78,46282,1,1.html |
| _version_ | 1797943545221349376 |
|---|---|
| author | Bruno Fernández-Valdés Ben Jones Sharief Hendricks Dan Weaving Carlos Ramirez-Lopez Sarah Whitehead Jacob González Jose Gisbert-Orozco Michela Trabucchi Gerard Moras |
| author_facet | Bruno Fernández-Valdés Ben Jones Sharief Hendricks Dan Weaving Carlos Ramirez-Lopez Sarah Whitehead Jacob González Jose Gisbert-Orozco Michela Trabucchi Gerard Moras |
| author_sort | Bruno Fernández-Valdés |
| collection | DOAJ |
| description | The aim of this study was to identify between-position (forwards vs. backs) differences in movement variability in cumulative tackle events training during both attacking and defensive roles. Eleven elite adolescent male rugby league players volunteered to participate in this study (mean ± SD, age; 18.5 ± 0.5 years, height; 179.5 ± 5.0 cm, body mass; 88.3 ± 13.0 kg). Participants performed a drill encompassing four blocks of six tackling (i.e. tackling an opponent) and six tackled (i.e. being tackled by an opponent while carrying a ball) events (i.e. 48 total tackles) while wearing a micro-technological inertial measurement unit (WIMU, Realtrack Systems, Spain). The acceleration data were used to calculate sample entropy (SampEn) to analyse the movement variability during tackles performance. In tackling actions SampEn showed significant between-position differences in block 1 (p = 0.0001) and block 2 (p = 0.0003). Significant between-block differences were observed in backs (block 1 vs 3, p = 0,0021; and block 1 vs 4, p = 0,0001) but not in forwards. When being tackled, SampEn showed significant between-position differences in block 1 (p = 0.0007) and block 3 (p = 0.0118). Significant between-block differences were only observed for backs in block 1 vs 4 (p = 0,0025). Movement variability shows a progressive reduction with cumulative tackle events, especially in backs and when in the defensive role (tackling). Forwards present lower movement variability values in all blocks, particularly in the first block, both in the attacking and defensive role. Entropy measures can be used by practitioners as an alternative tool to analyse the temporal structure of variability of tackle actions and quantify the load of these actions according to playing position. |
| first_indexed | 2024-04-10T20:25:52Z |
| format | Article |
| id | doaj.art-edf0ee577e9548d9912ddddb9540c2f2 |
| institution | Directory Open Access Journal |
| issn | 0860-021X 2083-1862 |
| language | English |
| last_indexed | 2024-04-10T20:25:52Z |
| publishDate | 2022-02-01 |
| publisher | Termedia Publishing House |
| record_format | Article |
| series | Biology of Sport |
| spelling | doaj.art-edf0ee577e9548d9912ddddb9540c2f22023-01-25T12:59:43ZengTermedia Publishing HouseBiology of Sport0860-021X2083-18622022-02-0140116117010.5114/biolsport.2023.11296546282A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league playersBruno Fernández-ValdésBen JonesSharief HendricksDan WeavingCarlos Ramirez-LopezSarah WhiteheadJacob GonzálezJose Gisbert-OrozcoMichela TrabucchiGerard MorasThe aim of this study was to identify between-position (forwards vs. backs) differences in movement variability in cumulative tackle events training during both attacking and defensive roles. Eleven elite adolescent male rugby league players volunteered to participate in this study (mean ± SD, age; 18.5 ± 0.5 years, height; 179.5 ± 5.0 cm, body mass; 88.3 ± 13.0 kg). Participants performed a drill encompassing four blocks of six tackling (i.e. tackling an opponent) and six tackled (i.e. being tackled by an opponent while carrying a ball) events (i.e. 48 total tackles) while wearing a micro-technological inertial measurement unit (WIMU, Realtrack Systems, Spain). The acceleration data were used to calculate sample entropy (SampEn) to analyse the movement variability during tackles performance. In tackling actions SampEn showed significant between-position differences in block 1 (p = 0.0001) and block 2 (p = 0.0003). Significant between-block differences were observed in backs (block 1 vs 3, p = 0,0021; and block 1 vs 4, p = 0,0001) but not in forwards. When being tackled, SampEn showed significant between-position differences in block 1 (p = 0.0007) and block 3 (p = 0.0118). Significant between-block differences were only observed for backs in block 1 vs 4 (p = 0,0025). Movement variability shows a progressive reduction with cumulative tackle events, especially in backs and when in the defensive role (tackling). Forwards present lower movement variability values in all blocks, particularly in the first block, both in the attacking and defensive role. Entropy measures can be used by practitioners as an alternative tool to analyse the temporal structure of variability of tackle actions and quantify the load of these actions according to playing position.https://www.termedia.pl/A-novel-application-of-entropy-analysis-for-assessing-changes-in-movement-variability-during-cumulative-tackles-in-young-elite-rugby-league-players,78,46282,1,1.htmldynamical systems motor control team sport technology measurement |
| spellingShingle | Bruno Fernández-Valdés Ben Jones Sharief Hendricks Dan Weaving Carlos Ramirez-Lopez Sarah Whitehead Jacob González Jose Gisbert-Orozco Michela Trabucchi Gerard Moras A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players Biology of Sport dynamical systems motor control team sport technology measurement |
| title | A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| title_full | A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| title_fullStr | A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| title_full_unstemmed | A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| title_short | A novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| title_sort | novel application of entropy analysis for assessing changes in movement variability during cumulative tackles in young elite rugby league players |
| topic | dynamical systems motor control team sport technology measurement |
| url | https://www.termedia.pl/A-novel-application-of-entropy-analysis-for-assessing-changes-in-movement-variability-during-cumulative-tackles-in-young-elite-rugby-league-players,78,46282,1,1.html |
| work_keys_str_mv | AT brunofernandezvaldes anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT benjones anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT shariefhendricks anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT danweaving anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT carlosramirezlopez anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT sarahwhitehead anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT jacobgonzalez anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT josegisbertorozco anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT michelatrabucchi anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT gerardmoras anovelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT brunofernandezvaldes novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT benjones novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT shariefhendricks novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT danweaving novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT carlosramirezlopez novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT sarahwhitehead novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT jacobgonzalez novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT josegisbertorozco novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT michelatrabucchi novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers AT gerardmoras novelapplicationofentropyanalysisforassessingchangesinmovementvariabilityduringcumulativetacklesinyoungeliterugbyleagueplayers |