Trial · NCT07889089
Effects of Sprint and Eccentric Hamstring Training in Elite Youth Soccer Players
NCT07889089, Not applicable, Not yet recruiting, Comenius University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Effects of Sprint and Eccentric Hamstring Training in Elite Youth Soccer Players. Trials, record NCT07889089. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07889089
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Effects of Sprint and Eccentric Hamstring Training in Elite Youth Soccer Players
- NCT number
- NCT07889089
- Status
- Not yet recruiting
- Phases
- Not applicable
- Enrollment
- 15 participants, estimated
- Lead sponsor
- Comenius University
- Conditions
- Sprint Mechanical Output, Sprint Performance, Eccentric Hamstring Strength
- Interventions
- Eccentric hamstring strength training, Sprint training
- First posted
- 2026-10-22
- Last updated
- 2026-10-22
Source ClinicalTrials.gov
Registered outcomes9
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Maximal Relative Theoretical Horizontal Force (F0) | From baseline to the post testing at 6 weeks | Maximal relative theoretical horizontal force (F0) will be derived from the sprint force-velocity profile obtained during a 30-m sprint using the 1080 Sprint system. Participants will complete two trials, and the better value will be used for analysis. |
| Primary | Maximal Theoretical Velocity (V0) | From baseline to the post testing at 6 weeks | Maximal theoretical sprint velocity (V0) will be assessed during a 30-m sprint using the 1080 Sprint motorized resistance system (1080 Motion AB, Stockholm, Sweden). Participants will complete two trials with 3 minutes of rest between trials, and the better value will be used for analysis. |
| Primary | Relative Maximal Power Output (Pmax) | From baseline to the post testing at 6 weeks | Relative maximal mechanical power output (Pmax) will be derived from the sprint force-velocity profile during a 30-m sprint using the 1080 Sprint system. Participants will perform two trials separated by 3 minutes of rest, and the better value will be used for analysis. |
| Primary | Maximal Ratio of Force (RFmax) | From baseline to the post testing at 6 weeks | Maximal ratio of force (RFmax) will be derived from the sprint force-velocity profile obtained during a 30-m sprint using the 1080 Sprint system. Participants will perform two trials, and the better value will be used for analysis. |
| Primary | 5-m Sprint Time | From baseline to the post testing at 6 weeks | Sprint time over 5 m will be measured using a single-beam electronic timing system (Witty Gate, Microgate, Bolzano, Italy) during a 30-m maximal sprint. Participants will perform two trials separated by 3 minutes of rest. The average time from the two trials will be used for analysis. |
| Primary | 10-m Sprint Time | From baseline to the post testing at 6 weeks | Sprint time over 10 m will be measured using a single-beam electronic timing system during a 30-m maximal sprint. Participants will perform two trials separated by 3 minutes of rest. The average time from the two trials will be used for analysis. |
| Primary | 20-m Sprint Time | From baseline to the post testing at 6 weeks | Sprint time over 20 m will be measured using a single-beam electronic timing system during a 30-m maximal sprint. Participants will perform two trials separated by 3 minutes of rest. The average time from the two trials will be used for analysis. |
| Primary | 30-m Sprint Time | From baseline to the post testing at 6 weeks | Sprint time over 30 m will be measured using a single-beam electronic timing system. Participants will perform two maximal 30-m sprint trials separated by 3 minutes of rest. The average time from the two trials will be used for analysis. |
| Secondary | Eccentric Hamstring Strength | From baseline to the post testing at 6 weeks | Eccentric hamstring strength will be assessed using the NordBord device (VALD Performance, Newstead, Australia) during the Nordic hamstring exercise. Following three submaximal familiarization efforts, participants will perform three maximal efforts. The best value obtained for each limb will be used to derive the bilateral eccentric hamstring strength score for analysis. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers44
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07889089
GET https://conductscience.org/api/trials/v1/NCT07889089/papers?page=2