Pulmonary Function and Trunk Muscle Performance in Wrestlers
Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexMale
Age18-35
SponsorIstanbul University
About this trial
This study aims to investigate the relationships among pulmonary function, aerobic performance, anaerobic performance, and isokinetic trunk muscle performance in professional male wrestlers. Wrestling requires a combination of high muscular strength, repeated high-intensity efforts, aerobic capacity, anaerobic performance, and effective trunk muscle function. However, the relationships among these physiological and muscular performance characteristics have not been fully established in professional wrestlers.
This single-center, analytical, cross-sectional observational study will include approximately 28 professional male wrestlers aged 18-35 years who have been actively participating in licensed wrestling for at least 5 years and who meet the predefined eligibility criteria. Participants will undergo anthropometric assessment, pulmonary function testing by spirometry, cardiopulmonary exercise testing with respiratory gas analysis, Wingate anaerobic testing, and isokinetic assessment of trunk muscle performance.
Pulmonary function parameters will be obtained from spirometry. Aerobic capacity will be evaluated using maximal oxygen consumption (VO₂max) obtained during cardiopulmonary exercise testing. Anaerobic performance will be assessed using the Wingate test, while trunk flexor and extensor muscle performance will be evaluated using isokinetic dynamometry. The study will primarily examine the relationship between pulmonary function parameters and isokinetic trunk muscle performance. Secondary analyses will evaluate the relationships of pulmonary function and trunk muscle performance with VO₂max and Wingate-derived anaerobic performance parameters.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Male participants aged 18-35 years
At least 5 years of active participation in licensed wrestling
Currently competing at the professional level and following a regular training program
No upper respiratory tract infection within the previous 4 weeks, or no signs of active infection on the day of assessment
Disqualifiers
Any chronic respiratory disease, including asthma, chronic obstructive pulmonary disease (COPD), bronchiectasis, or other chronic respiratory system disorders
Any cardiovascular, neurological, or systemic disease that may affect the study measurements
Surgery involving the trunk or spine within the previous 6 months
A musculoskeletal injury within the previous 3 months affecting the lower back, back, or abdominal muscles and resulting in absence from training or competition
Trial population
The study population will consist of professional male wrestlers aged 18-35 years who have been actively participating in licensed wrestling for at least 5 years, currently compete at the professional level, and follow a regular training program. Participants will undergo standardized assessments of pulmonary function, aerobic capacity, anaerobic performance, and isokinetic trunk muscle performance. A total of 28 eligible professional male wrestlers are planned to be included in the study.
Trial design
Design model
Other
Time perspective
Cross-sectional
Treatments tested in this trial
No intervention
Other interventionNo intervention will be administered. Participants will undergo standardized assessments including spirometry, cardiopulmonary exercise testing with gas analysis for VO₂max, Wingate anaerobic test, and isokinetic trunk muscle performance testing. These assessments are performed for data collection purposes and do not constitute a therapeutic intervention.
Treatment groups
28 Participants
are divided into 1 treatment groupGroup A: Professional Male Wrestlers1 intervention
Trial outcomes
Primary outcomes
1
Forced Vital Capacity (FVC)
Forced vital capacity (FVC) is the maximum volume of air that can be forcibly exhaled after a maximal inspiration. It will be assessed by spirometry and reported in liters (L), with values approximately 80-120% of the predicted value considered within the normal range.
Time frame
Baseline2
Forced Expiratory Volume in 1 Second (FEV₁)
Forced expiratory volume in 1 second (FEV₁) is the volume of air that can be forcibly exhaled during the first second following maximal inspiration. It will be assessed by spirometry and reported in liters (L), with values approximately 80-120% of the predicted value considered within the normal range.
Time frame
Baseline3
FEV₁/FVC Ratio
The FEV₁/FVC ratio represents the proportion of the forced vital capacity exhaled during the first second of forced expiration. It will be assessed by spirometry and reported as a percentage (%), with values ≥70% generally considered within the normal range in adults.
Time frame
Baseline4
Peak Expiratory Flow (PEF)
Peak expiratory flow (PEF) is the maximum flow rate achieved during a forced expiration following maximal inspiration. It will be assessed by spirometry and reported in liters per second (L/s), with values interpreted according to age, sex, height, and predicted reference values.
Time frame
BaselineSecondary outcomes
1
Maximal Oxygen Consumption (VO₂max)
Maximal aerobic capacity will be assessed by cardiopulmonary exercise testing performed on a treadmill using the Bruce protocol with breath-by-breath respiratory gas analysis. VO₂max will be determined from the highest oxygen consumption achieved during the test when predefined criteria for maximal effort are met. If these criteria are not met, the highest oxygen consumption value achieved will be recorded as VO₂peak. Values will be recorded as both absolute oxygen consumption (L/min) and relative to body mass (mL/kg/min).
Time frame
Baseline2
Peak Power During the Wingate Anaerobic Test
Peak power represents the highest mechanical power output achieved during the Wingate anaerobic test. Anaerobic performance will be assessed using a standardized Wingate test performed on a cycle ergometer. Peak power will be recorded in watts (W).
Time frame
Baseline3
Mean Power During the Wingate Anaerobic Test
Mean power represents the average mechanical power output maintained throughout the Wingate anaerobic test. It will be assessed using a standardized Wingate test performed on a cycle ergometer and reported in watts (W).
Time frame
Baseline4
Fatigue Index During the Wingate Anaerobic Test
Fatigue index represents the decline in power output during the Wingate anaerobic test and will be calculated from the change between peak and minimum power output during the test. It will be reported as a percentage (%).
Time frame
BaselineSponsors and contacts
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Source ClinicalTrials.gov
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