Effects of Core and Inspiratory Muscle Training on Muscle Oxygenation and Athletic Performance İn… (NCT07657065) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Effects of Core and Inspiratory Muscle Training on Muscle Oxygenation and Athletic Performance İn Young Soccer Players
Turkey (Türkiye)54 participantsStarted 2026-08
Plain-language summary
The purpose of this randomized controlled trial is to investigate the effects of core training and inspiratory muscle training (IMT) on muscle oxygenation and athletic performance in youth male soccer players aged 15-18. A total of 54 healthy soccer players will be included and randomly assigned into three equal groups: the Control Group, the Core Training Group, and the Core Training + IMT Group.
All interventions will be implemented for 8 weeks in addition to routine soccer training sessions. Assessments will be performed at baseline (Week 0), mid-intervention (Week 4), and post-intervention (Week 8). The primary outcome measures of the study are aerobic capacity assessed by the Yo-Yo Intermittent Recovery Test Level 1 and muscle oxygenation parameters monitored via near-infrared spectroscopy (NIRS) using a MOXY monitor. Secondary outcome measures include sprint performance, agility, dynamic balance, core muscle strength and endurance, inspiratory muscle strength, lower extremity explosive power, and soccer-specific technical performance tests.
Overall, this study aims to reveal the combined effects of core training and inspiratory muscle training on muscle oxygenation, respiratory functions, aerobic capacity, and soccer performance, while explaining the underlying physiological mechanisms in youth athletes.
Who can participate
Age range
15 Years – 18 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Being between 15 and 18 years of age.
* Being a male soccer player.
* Actively and regularly participating in trainings at Alagöz Soccer Club.
* Having participated in regular soccer training for at least the last 6 months.
* Being able to continue routine trainings throughout the study period.
* Being fully informed about the research.
* Having obtained voluntary informed consent, and parental/guardian consent for participants under 18 years of age.
* Having the cognitive and physical capacity to understand and fulfill the specific test and exercise instructions.
Exclusion Criteria:
* Having a history of lower extremity, trunk-core, or athletic performance-limiting injury within the last 6 months.
* Having undergone orthopedic lower extremity or spine surgery within the last 1 year.
* Having active musculoskeletal pain or any orthopedic/neurological condition that prevents exercise.
* Having any health condition that prevents the safe execution of balance, sprint, agility, jump, or core endurance tests.
* Having asthma, chronic respiratory system diseases, exercise-induced bronchospasm, cardiovascular disease, or a physician-imposed restriction on high-intensity exercise that could affect respiratory muscle or exercise testing.
* Having open wounds, infections, or severe skin sensitivity that prevents the application of sensors placed on the skin.
* Currently participating in another structured respiratory muscle training or structured core exercise …
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.