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This study aimed to investigate the effects of a 4-week core exercise program on sprint, vertical jump, agility, and postural sway performance in amateur male soccer players aged 18-23. Participants were randomly assigned to an intervention group (core training) or a control group (regular training). Physical performance tests were conducted before and after the training program. The results are expected to help coaches and sports scientists better understand the performance benefits of core training.
This randomized controlled study investigated the effects of a 4-week core exercise program on sprint, vertical jump, agility, and postural sway performance in amateur male soccer players aged 18 to 23. Thirty participants were randomly assigned to either a core training group (n=15) or a control group (n=15). The core training group performed additional core stability exercises three times per week, while the control group continued their regular training routine. All participants completed physical performance tests, including 10- and 20-meter sprint, change of direction test, countermovement jump (CMJ), and postural sway assessment using a force platform. Pre- and post-test comparisons were conducted to evaluate the intervention's effectiveness. Ethical approval was obtained from the Gazi University Ethics Committee (Approval No: 2024-1685). The study was designed to help coaches and sport scientists understand how core training may improve athletic performance parameters in amateur football players.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Core Training Group | Experimental | Participants in this group received a 4-week core training program in addition to their regular soccer training. The program included dynamic and static core stabilization exercises, performed 3 times per week, each session lasting approximately 25-30 minutes. |
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| Control Group | No Intervention | Participants in this group continued their usual soccer training routine and did not receive any additional core training during the 4-week period. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Core Exercise Program | Behavioral | This intervention consists of a 4-week core training program including exercises like planks, side planks, bird-dogs, bridges, and dead bugs, performed 3 days per week alongside regular soccer training. Each session lasted approximately 25-30 minutes. |
| Measure | Description | Time Frame |
|---|---|---|
| Change of Direction Performance (Illinois Test) | Change of direction (COD) performance was measured using the Illinois Change of Direction Test. Participants completed the test before and after a 4-week core training intervention. COD time was recorded using infrared timing gates, and the best of two attempts was used for analysis. Lower completion time indicates better performance. | Baseline (Week 0) and Week 5 (immediately after the 4-week intervention) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Selman Kaya, Phd | University of Yalova | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yalova University | Yalova | Marmara | 77100 | Turkey (Türkiye) |
At this time, there is no definitive plan for individual participant data (IPD) sharing. The decision will depend on future institutional policies, ethical approvals, and data availability.
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Participants were randomly assigned to one of two arms: (1) Core training group, which performed a 4-week structured core exercise program in addition to their routine training; (2) Control group, which continued regular training without additional intervention.
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Due to the nature of the exercise intervention, no blinding was applied. Both participants and investigators were aware of group assignments.
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