Respiratory Function and Athletic Performance in Professional Soccer Players
23 de maio de 2026 atualizado por: Yunus Emre Tutuneken, Istinye University
Association Between Respiratory Function and Athletic Performance Parameters in Professional Soccer Players: A Cross-Sectional Study
This prospective observational study aims to investigate the relationship between respiratory function and multidimensional athletic performance parameters in professional soccer players.
The primary hypothesis of the study is that soccer players with enhanced respiratory function and superior respiratory muscle strength will exhibit optimized motor performance outcomes and shorter (faster) reactive reaction times.
Investigators will evaluate respiratory muscle strength, spirometric pulmonary functions, dynamic balance, core and abdominal endurance, and reactive visuomotor reaction times during a single testing session within the competitive season.
Visão geral do estudo
Status
Ainda não está recrutando
Intervenção / Tratamento
Descrição detalhada
Professional soccer players from Istanbulspor A.S. Football Club will be screened and enrolled based on strict eligibility criteria.
Eligible athletes will undergo a comprehensive, single-session testing protocol designed to prevent fatigue-related bias.
Testing will commence with a baseline pulmonary function assessment and respiratory muscle strength evaluation (maximal inspiratory pressure [MIP] and maximal expiratory pressure [MEP]).
Following a standardized rest interval, dynamic balance will be quantified using the Y-Balance Test (YBT).
Subsequently, reactive visuomotor reaction times will be measured using the wireless BlazePod LED system.
Finally, participants will execute higher-intensity, sport-specific performance assessments, including the isometric plank test for core endurance, a 60-second timed sit-up test for abdominal muscular endurance, and the T-drill test for agility.
A standardized 10-minute seated rest interval will be strictly enforced between all physical assessments to ensure full physiological recovery.
Bivariate correlation models will be utilized to analyze the direct relationships between respiratory indicators and performance indices.
Tipo de estudo
Observacional
Inscrição (Estimado)
31
Critérios de participação
Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
Aceita Voluntários Saudáveis
Sim
Método de amostragem
Amostra Não Probabilística
População do estudo
The study population will consist of elite-level athletic professionals, specifically young adult male professional soccer players.
Participants will be recruited from a licensed professional football club actively competing in national league training and competition schedules.
Descrição
Inclusion Criteria:
- Participants will be actively competing, licensed professional soccer players. -Participants will be engaged in regular, team-based training and competitive match schedules.
- Participants will voluntarily provide written informed consent before any study-related physical performance assessments are conducted.
Exclusion Criteria:
- Participants will be excluded if they present with an acute upper or lower respiratory tract infection that could potentially affect pulmonary function or maximal respiratory muscle performance.
- Participants will be excluded if they have a documented history of major cardiothoracic surgery.
- Participants will be excluded if they have any diagnosed respiratory and/or cardiovascular disorder associated with dyspnea or impaired pulmonary mechanics.
- Participants will be excluded if they present with any condition that elevates clinical risk during maximal inspiratory and expiratory pressure assessments.
- Participants will be excluded if they have sustained an acute musculoskeletal injury within the preceding 6 weeks that could compromise maximal physical exertion during sport-specific performance testing.
Plano de estudo
Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.
Como o estudo é projetado?
Detalhes do projeto
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Maximal Expiratory Pressure (MEP)
Prazo: 2 hours
|
Description: Respiratory muscle strength will be assessed using a portable digital respiratory pressure meter.
Participants will execute a maximal expiratory maneuver from total lung capacity after full inspiration while wearing a nose clip.
The highest reproducible value from at least three technically acceptable trials will be recorded in centimeters of water (cmH₂O).
|
2 hours
|
|
Maximal Inspiratory Pressure (MIP)
Prazo: 2 hour
|
Description: Respiratory muscle strength will be assessed using a portable digital respiratory pressure meter.
Participants will perform a maximal inspiratory maneuver from residual volume following complete expiration while wearing a nose clip.
The highest reproducible value from at least three technically acceptable trials will be recorded in centimeters of water (cmH₂O).
|
2 hour
|
|
Reactive Visuomotor Reaction Time
Prazo: 2 hours
|
Cognitive-motor reaction speed will be quantified using a wireless LED pod system arrayed in an equidistant semi-circular matrix.
Participants will utilize their dominant lower limb to deactivate randomly illuminated pods as quickly as possible across 10 sets of 22 randomized stimuli.
The mean reaction time across the challenge will be recorded in milliseconds (ms).
|
2 hours
|
|
Dynamic Postural Stability (Y-Balance Test)
Prazo: 2 hours
|
Functional reach capacity and dynamic balance will be quantified using a standardized Y-Balance Test apparatus.
While maintaining a single-leg stance, participants will push indicator blocks in the anterior, posteromedial, and posterolateral directions.
The maximum reach distance from three successful trials for each direction will be normalized to leg length and used to calculate a comprehensive Composite Score percentage (%) for both limbs.
|
2 hours
|
|
Static Core Stabilization Endurance (Prone Plank Test)
Prazo: 2 hours
|
Isometric core endurance will be quantified using the isometric prone plank test on a high-density mat.
Participants will support their body weight exclusively on their forearms and toes, maintaining a strict neutral horizontal alignment of the head, spine, hips, and ankles.
The test will be terminated when the participant voluntarily discontinues or fails to maintain correct alignment.
Total duration will be recorded in seconds (sec).
|
2 hours
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Forced Vital Capacity (FVC)
Prazo: 2 hours
|
Pulmonary function will be evaluated using a computerized spirometry system in accordance with ATS/ERS guidelines.
Participants will perform a maximal inspiratory effort followed by a rapid and forceful expiration sustained until complete exhalation.
The highest reproducible value will be expressed both as an absolute volume in liters (L) and as a percentage of predicted reference values (FVC%).
|
2 hours
|
|
Forced Expiratory Volume in 1 Second (FEV1%)
Prazo: 2 hours
|
Pulmonary function will be evaluated using a computerized spirometry system in accordance with ATS/ERS guidelines.
The volume of air exhaled during the first second of the FVC maneuver will be extracted.
The highest reproducible value will be expressed both as an absolute volume in liters (L) and as a percentage of predicted reference values (FEV1%).
|
2 hours
|
|
Peak Expiratory Flow (PEF)
Prazo: 2 hours
|
Pulmonary function will be evaluated using a computerized spirometry system in accordance with ATS/ERS guidelines.
The maximum flow rate achieved during the forced expiratory maneuver will be measured.
The highest reproducible value will be expressed in liters per second (L/s) and as a percentage of predicted reference values (PEF%).
|
2 hours
|
|
Dynamic Abdominal Endurance (60-Second Sit-Up Test)
Prazo: 2 hours
|
Dynamic muscular endurance of the abdominal wall will be evaluated using a timed sit-up protocol.
From a supine position with knees flexed at 90° and hands crossed over the chest, participants will flex the trunk until the elbows touch the knees, then return to the baseline position.
The total number of correctly executed repetitions completed within exactly 1 minute (reps) will be recorded.
|
2 hours
|
|
Change-of-Direction Speed and Agility (T-Drill Test)
Prazo: 2 hours
|
On-field agility and change-of-direction speed will be quantified using a standardized T-configuration cone course monitored by electronic timing gates.
Participants will perform forward sprinting, lateral side-shuffling, and backpedaling maneuvers through the course.
The fastest completion time out of three successful trials will be recorded in seconds (sec).
|
2 hours
|
Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Datas de registro do estudo
Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.
Datas Principais do Estudo
Início do estudo (Estimado)
25 de maio de 2026
Conclusão Primária (Estimado)
5 de julho de 2026
Conclusão do estudo (Estimado)
10 de julho de 2026
Datas de inscrição no estudo
Enviado pela primeira vez
23 de maio de 2026
Enviado pela primeira vez que atendeu aos critérios de CQ
23 de maio de 2026
Primeira postagem (Real)
1 de junho de 2026
Atualizações de registro de estudo
Última Atualização Postada (Real)
1 de junho de 2026
Última atualização enviada que atendeu aos critérios de controle de qualidade
23 de maio de 2026
Última verificação
1 de maio de 2026
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
- Processos Patológicos
- Doenças Respiratórias
- Distúrbios Respiratórios
- Condições Patológicas, Sinais e Sintomas
- Aspiração Respiratória
- Técnicas e procedimentos de diagnóstico
- Diagnóstico
- Fenômenos fisiológicos circulatórios e respiratórios
- Respiração
- Fenômenos fisiológicos respiratórios
- Exame físico
- Sinais vitais
- Frequência respiratória
Outros números de identificação do estudo
- 22
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Não
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
Não
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .