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This is a monocentric study comparing hamstring and quadriceps neuromuscular fatigue after simulated soccer game, anaerobic and aerobic training sessions. The purpose of this study was:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Physical exercices arm | Experimental | three randomizations will be used to determine the order of the tests that will be proposed to the subjects: on the one hand for the exercise modalities (match, anaerobic, aerobic) and, on the other hand, for the exercise modalities included in the anaerobic and aerobic exercise families: Anaerobic agility / anaerobic - linear sprints Aerobic - shuttle / aerobic - linear |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Physical exercices | Other | surface EMG: surface electrodes will be positioned on the muscles to evaluate the level of muscle activation non invasive muscular neurostimulations : application of a percutaneous electrical stimulation of the motor nerve of the considered muscle and a direct electrical stimulation of the muscle |
| Measure | Description | Time Frame |
|---|---|---|
| Difference in maximal isometric hamstring strength before and immediately after exercise (i.e., pre vs. immediate post exercise) expressed as a percentage (%). | Before and immediately post exercise (i.e., during the first minute after cessation of exercise) |
| Measure | Description | Time Frame |
|---|---|---|
| Relative difference (in %) in maximum isometric hamstring strength before and after exercise (i.e., pre- vs. post-exercise), relative to pre-exercise strength across different test types. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise | |
| Relative difference (in %) in maximal isometric quadriceps strength before and after exercise (i.e., pre vs. post exercise), related to preexercise strength according to the different types of tests. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hopitaux Universitaires de Strasbourg | Recruiting | Strasbourg | 67091 | France |
| Type | Date | Date Unknown |
|---|---|---|
| Release | Jan 9, 2025 | |
| Reset | Feb 3, 2025 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Jan 9, 2025 | Feb 3, 2025 |
| ID | Term |
|---|---|
| D009043 | Motor Activity |
| ID | Term |
|---|---|
| D001519 | Behavior |
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three randomizations will be used to determine the order of the tests that will be proposed to the subjects:
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| Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Relative difference (%) in maximum isometric hamstring and quadriceps strength for each test type at the different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in pre- and post-exercise (i.e., pre- vs. post-exercise) hamstring potentiated jerk amplitude (N) relative to pre-exercise amplitude by event type at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in pre- and post-exercise (i.e., pre- vs. post-exercise) potentiated jerk amplitude (N) of the quadriceps, relative to pre-exercise amplitude, by test type at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in amplitude of the potentiated jerk (N) before and after exercise, related to the preexercise amplitude according to the muscle involved (hamstrings or quadriceps) and the type of test at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in the level of voluntary hamstring activation, expressed in newtons (N), before and after exercise, related to the pre-exercise action level, according to the type of test at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in the level of voluntary quadriceps activation, expressed in newtons (N), before and after exercise, related to the pre-exercise action level, according to the type of test at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Difference in the level of voluntary action before and after exercise, related to the level of action before exercise, according to the muscle involved (hamstrings or quadriceps) and the type of test at different times of interest. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Differences in overall fatigue, peripheral fatigue, and central fatigue of hamstrings versus quadriceps between exercise modalities. | Determine the modalities of exercises which induce the highest level of fatigue and characterize the etiology of neuromuscular fatigue (i.e., peripheral or central) for typical drills performed daily by elite soccer players | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |
| Ratio (%) of initial to post-exercise values based on field indicators and neuromuscular fatigue. | Before and immediately post exercise, 5, 10, 15, 30-minutes and 24 and 48-hours post-exercise |