Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers
Abstract The purpose of this study was to examine the effects of different dryland warm-up protocols on knee isokinetic strength, vertical jumping, and sprint performance in competitive swimmers. Twenty-four male swimmers were randomly assigned to the FIFA 11 + group (n = 12) or the post-activation...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-11-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-024-79984-x |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846158708053114880 |
|---|---|
| author | Zixiang Zhou Pedro G. Morouço Athanasios A. Dalamitros Chao Chen Weijia Cui Rui Wu Jian Wang |
| author_facet | Zixiang Zhou Pedro G. Morouço Athanasios A. Dalamitros Chao Chen Weijia Cui Rui Wu Jian Wang |
| author_sort | Zixiang Zhou |
| collection | DOAJ |
| description | Abstract The purpose of this study was to examine the effects of different dryland warm-up protocols on knee isokinetic strength, vertical jumping, and sprint performance in competitive swimmers. Twenty-four male swimmers were randomly assigned to the FIFA 11 + group (n = 12) or the post-activation performance enhancement (PAPE) group (n = 12). The FIFA 11 + group performed the FIFA 11 + warm-up program three times per week for 6 weeks, whereas the PAPE group consisted of performing general activities and three sets of five drop jumps. Performance test included concentric (con) and eccentric (ecc) isokinetic strength of the quadriceps (Q) and hamstrings (H) of the dominant (DL) and non-dominant (NDL) limbs at three angular velocities, countermovement jump (CMJ), squat jump (SJ) and a 50-m time trial. The conventional (Hcon: Qcon) and functional (Hecc: Qcon) ratios were calculated pre- and post- intervention. The FIFA 11 + group showed a significant increase in DL-Hcon (p < 0.05, ES = 1.0-1.8), and NDL-Hcon (p < 0.05, ES = 1.0-1.6) in all angular velocities, and DL-Qcon (p < 0.05, ES = 0.9) at 60°·s− 1. The PAPE group significantly improved DL-Qcon at 180°·s− 1, 240°·s− 1 (both p < 0.05, ES = 1.0), and NDL-Qcon at 240°·s− 1 (p < 0.05, ES = 0.9). Additionally, FIFA 11 + showed significant improvement in DL-Hcon and NDL-Hcon (both p < 0.05, ES = 0.9–1.8) compared with PAPE. FIFA 11 + increased DL-Hcon: Qcon60 (p < 0.05, ES = 1.1) and NDL- Hcom: Qcon60,240 (both p < 0.05, ES = 1.2) compared with PAPE. Both groups significantly improved CMJ (FIFA 11 + p < 0.01, ES = 0.4 and PAPE p < 0.01, ES = 0.3), SJ (both p < 0.01, ES = 0.6) and 50-m swimming performance (FIFA 11 + p < 0.05, ES = -0.8 and PAPE p < 0.05, ES = -0.6). Both warm-up protocols showed similar improvements in jumping ability and sprint swimming performance. The FIFA 11 + seemed more efficient in improving lower limb isokinetic strength and conventional strength ratios in male competitive swimmers. |
| format | Article |
| id | doaj-art-f2508c1fb5704b4c859f4078d827213a |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-f2508c1fb5704b4c859f4078d827213a2024-11-24T12:19:34ZengNature PortfolioScientific Reports2045-23222024-11-0114111010.1038/s41598-024-79984-xEffects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmersZixiang Zhou0Pedro G. Morouço1Athanasios A. Dalamitros2Chao Chen3Weijia Cui4Rui Wu5Jian Wang6Department of Physical Education, Ludong UniversityDepartment of Sport Sciences, Polytechnic University of LeiriaSchool of Physical Education and Sport Sciences, Aristotle University of ThessalonikiCollege of Physical Education, Dalian UniversitySchool of Athletic Performance, Shanghai University of SportSchool of Athletic Performance, Shanghai University of SportSchool of Athletic Performance, Shanghai University of SportAbstract The purpose of this study was to examine the effects of different dryland warm-up protocols on knee isokinetic strength, vertical jumping, and sprint performance in competitive swimmers. Twenty-four male swimmers were randomly assigned to the FIFA 11 + group (n = 12) or the post-activation performance enhancement (PAPE) group (n = 12). The FIFA 11 + group performed the FIFA 11 + warm-up program three times per week for 6 weeks, whereas the PAPE group consisted of performing general activities and three sets of five drop jumps. Performance test included concentric (con) and eccentric (ecc) isokinetic strength of the quadriceps (Q) and hamstrings (H) of the dominant (DL) and non-dominant (NDL) limbs at three angular velocities, countermovement jump (CMJ), squat jump (SJ) and a 50-m time trial. The conventional (Hcon: Qcon) and functional (Hecc: Qcon) ratios were calculated pre- and post- intervention. The FIFA 11 + group showed a significant increase in DL-Hcon (p < 0.05, ES = 1.0-1.8), and NDL-Hcon (p < 0.05, ES = 1.0-1.6) in all angular velocities, and DL-Qcon (p < 0.05, ES = 0.9) at 60°·s− 1. The PAPE group significantly improved DL-Qcon at 180°·s− 1, 240°·s− 1 (both p < 0.05, ES = 1.0), and NDL-Qcon at 240°·s− 1 (p < 0.05, ES = 0.9). Additionally, FIFA 11 + showed significant improvement in DL-Hcon and NDL-Hcon (both p < 0.05, ES = 0.9–1.8) compared with PAPE. FIFA 11 + increased DL-Hcon: Qcon60 (p < 0.05, ES = 1.1) and NDL- Hcom: Qcon60,240 (both p < 0.05, ES = 1.2) compared with PAPE. Both groups significantly improved CMJ (FIFA 11 + p < 0.01, ES = 0.4 and PAPE p < 0.01, ES = 0.3), SJ (both p < 0.01, ES = 0.6) and 50-m swimming performance (FIFA 11 + p < 0.05, ES = -0.8 and PAPE p < 0.05, ES = -0.6). Both warm-up protocols showed similar improvements in jumping ability and sprint swimming performance. The FIFA 11 + seemed more efficient in improving lower limb isokinetic strength and conventional strength ratios in male competitive swimmers.https://doi.org/10.1038/s41598-024-79984-xKnee strength ratioLower limb strengthPost-activation performance enhancementElite swimmers |
| spellingShingle | Zixiang Zhou Pedro G. Morouço Athanasios A. Dalamitros Chao Chen Weijia Cui Rui Wu Jian Wang Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers Scientific Reports Knee strength ratio Lower limb strength Post-activation performance enhancement Elite swimmers |
| title | Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers |
| title_full | Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers |
| title_fullStr | Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers |
| title_full_unstemmed | Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers |
| title_short | Effects of two warm-up protocols on isokinetic knee strength, jumping ability and sprint swimming performance in competitive swimmers |
| title_sort | effects of two warm up protocols on isokinetic knee strength jumping ability and sprint swimming performance in competitive swimmers |
| topic | Knee strength ratio Lower limb strength Post-activation performance enhancement Elite swimmers |
| url | https://doi.org/10.1038/s41598-024-79984-x |
| work_keys_str_mv | AT zixiangzhou effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT pedrogmorouco effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT athanasiosadalamitros effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT chaochen effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT weijiacui effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT ruiwu effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers AT jianwang effectsoftwowarmupprotocolsonisokinetickneestrengthjumpingabilityandsprintswimmingperformanceincompetitiveswimmers |