Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol
Purpose: This study compares the average speed, knee flexor peak torque and shear modulus of the hamstrings after a repeated sprint task, in football players of different competitive levels and playing positions.Methods: Fifty-four football field players without hamstring strain injury history parti...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2023.1315564/full |
| _version_ | 1797366577457266688 |
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| author | Ricardo Pimenta Ricardo Pimenta Ricardo Pimenta Hugo Antunes Paula Bruno A. P. Veloso |
| author_facet | Ricardo Pimenta Ricardo Pimenta Ricardo Pimenta Hugo Antunes Paula Bruno A. P. Veloso |
| author_sort | Ricardo Pimenta |
| collection | DOAJ |
| description | Purpose: This study compares the average speed, knee flexor peak torque and shear modulus of the hamstrings after a repeated sprint task, in football players of different competitive levels and playing positions.Methods: Fifty-four football field players without hamstring strain injury history participated, 15 being categorized as professional (2nd league) and 39 as semi-professional (17 in 3rd and 22 in 4th league). Muscle shear modulus was assessed using ultrasound-based shear wave elastography at rest and at 20% of maximal voluntary isometric effort before and immediately after the repeated sprint protocol.Results: No significant differences were seen in average sprint speed between competitive levels (p = 0.07; η2p = 0.28) and positions (p = 0.052; η2p = 0.29). Moreover, the sprint fatigue index showed no significant differences between competitive levels (p = 0.14; η2p = 0.08) and playing positions (p = 0.89; η2p = 0.05). No significant differences were observed in hamstring shear modulus changes between competitive levels (p = 0.94; η2p = 0.03) and positions (p = 0.92; η2p = 0.03). Peak torque changes also showed non-significant association with competitive levels (p = 0.46; η2p = 0.03) and positions (p = 0.60; η2p = 0.02).Conclusion: The results of this study suggest that the average sprint speed performance parameter and mechanical parameters are not able to distinguish football players of different competitive levels and positions. |
| first_indexed | 2024-03-08T17:05:45Z |
| format | Article |
| id | doaj.art-3d140e4a0df3459aa12a36af1a826766 |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-03-08T17:05:45Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-3d140e4a0df3459aa12a36af1a8267662024-01-04T05:02:06ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2024-01-011410.3389/fphys.2023.13155641315564Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocolRicardo Pimenta0Ricardo Pimenta1Ricardo Pimenta2Hugo Antunes3Paula Bruno4A. P. Veloso5CIPER, Centro Interdisciplinar de Performance Humana, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, PortugalResearch Center of the Polytechnic Institute of Maia (N2i), Maia Polytechnic Institute (IPMAIA), Maia, PortugalFutebol Clube Famalicão—Futebol SAD, Department of Rehabilitation and Performance, Famalicão, PortugalCIPER, Centro Interdisciplinar de Performance Humana, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, PortugalCIPER, Centro Interdisciplinar de Performance Humana, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, PortugalCIPER, Centro Interdisciplinar de Performance Humana, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, PortugalPurpose: This study compares the average speed, knee flexor peak torque and shear modulus of the hamstrings after a repeated sprint task, in football players of different competitive levels and playing positions.Methods: Fifty-four football field players without hamstring strain injury history participated, 15 being categorized as professional (2nd league) and 39 as semi-professional (17 in 3rd and 22 in 4th league). Muscle shear modulus was assessed using ultrasound-based shear wave elastography at rest and at 20% of maximal voluntary isometric effort before and immediately after the repeated sprint protocol.Results: No significant differences were seen in average sprint speed between competitive levels (p = 0.07; η2p = 0.28) and positions (p = 0.052; η2p = 0.29). Moreover, the sprint fatigue index showed no significant differences between competitive levels (p = 0.14; η2p = 0.08) and playing positions (p = 0.89; η2p = 0.05). No significant differences were observed in hamstring shear modulus changes between competitive levels (p = 0.94; η2p = 0.03) and positions (p = 0.92; η2p = 0.03). Peak torque changes also showed non-significant association with competitive levels (p = 0.46; η2p = 0.03) and positions (p = 0.60; η2p = 0.02).Conclusion: The results of this study suggest that the average sprint speed performance parameter and mechanical parameters are not able to distinguish football players of different competitive levels and positions.https://www.frontiersin.org/articles/10.3389/fphys.2023.1315564/fullbiceps femoris long headsemitendinosusshear wave elastographyshear modulussoccer |
| spellingShingle | Ricardo Pimenta Ricardo Pimenta Ricardo Pimenta Hugo Antunes Paula Bruno A. P. Veloso Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol Frontiers in Physiology biceps femoris long head semitendinosus shear wave elastography shear modulus soccer |
| title | Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| title_full | Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| title_fullStr | Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| title_full_unstemmed | Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| title_short | Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| title_sort | hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol |
| topic | biceps femoris long head semitendinosus shear wave elastography shear modulus soccer |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2023.1315564/full |
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