Reliability and Concordance of 15-metre (15-m) Sprint Performance on Sand and Firm Surfaces
9 de junho de 2026 atualizado por: Édison Andrés Pérez Bedoya, Federal University of Vicosa
Within-Session and Between-Day Reliability of the 15-metre (15-m) Sprint on Sand and Firm Surfaces, and Concordance Between Conditions, in Male Beach-Sport Athletes
This observational repeated-measures methodological study evaluated the reliability and agreement of a 15-m linear sprint test performed on sand and firm surfaces in male beach-sport athletes. Participants completed three maximal sprint attempts on each surface during up to two testing sessions conducted on separate days.
The study examined trial-to-trial reliability within each session, stability between testing days, and concordance between sprint times obtained on sand and firm surfaces. No therapeutic or training intervention was administered. Sand and firm surfaces were used exclusively as assessment conditions.
Visão geral do estudo
Status
Concluído
Condições
Descrição detalhada
Male athletes participating in beach soccer, beach volleyball, or beach handball completed three maximal 15-m linear sprint attempts on both sand and firm surfaces. Each attempt was performed from a standardised standing start, with at least two minutes of passive recovery between attempts.
Testing comprised up to two sessions per participant on separate days. The order of the surface conditions was counterbalanced to reduce potential order and fatigue effects. Participants who attended two sessions completed the surfaces in the opposite order during the second session.
The primary measured variable was 15-m sprint time in seconds. The arithmetic mean of the three attempts and the fastest individual attempt were calculated for each surface and session. Within-session and between-day reliability were evaluated using intraclass correlation coefficients, coefficients of variation, standard errors of measurement, typical errors, and minimal detectable changes. Agreement between sand and firm-surface measurements was assessed using Lin's concordance correlation coefficient and Bland-Altman analysis.
Tipo de estudo
Observacional
Inscrição (Real)
16
Contactos e Locais
Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.
Locais de estudo
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Antioquia
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Guarne, Antioquia, Colômbia, 054080
- Universidad de Antioquia
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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
- Adulto mais velho
Aceita Voluntários Saudáveis
Sim
Método de amostragem
Amostra Não Probabilística
População do estudo
The study population consisted of male athletes participating in beach soccer, beach volleyball, or beach handball in Antioquia, Colombia.
Participants were recruited using convenience sampling based on their availability during the data-collection period.
Eligible athletes had completed at least six months of regular beach-sport training.
Athletes with a musculoskeletal injury during the preceding six weeks, an acute illness during the preceding seven days, or who were unable to complete at least one full testing session were excluded.
Descrição
Inclusion Criteria
- Male athlete participating in beach soccer, beach volleyball, or beach handball.
- Minimum of six months of regular beach-sport training.
- Able to complete maximal 15-m sprint assessments on sand and firm surfaces.
- Provision of written informed consent before participation.
Exclusion Criteria
- Musculoskeletal injury during the six weeks preceding testing.
- Acute illness during the seven days preceding testing.
- Failure to complete at least one full testing session.
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
Coortes e Intervenções
Grupo / Coorte |
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Male Beach-Sport Athletes
Sixteen male athletes participating in beach soccer, beach volleyball, or beach handball completed repeated 15-m sprint assessments on both sand and firm surfaces.
Each participant performed three maximal sprint attempts per surface during each completed testing session.
Ten participants completed two sessions on separate days, and six participants completed one session.
No therapeutic or training intervention was administered; sand and firm surfaces were used exclusively as repeated assessment conditions to evaluate sprint-test reliability and between-surface concordance.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Mean 15-m Sprint Time on Sand and Firm Surfaces
Prazo: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
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Time, measured in seconds, required to complete a maximal 15-metre linear sprint.
For each surface and testing session, the outcome was calculated as the arithmetic mean of three maximal sprint attempts.
For the between-surface analysis, one participant-level value per surface was derived by averaging session means for participants who completed two sessions or by using the single available session for participants who completed one session.
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During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Within-Session Reliability of 15-m Sprint Time
Prazo: Across the three sprint attempts performed during each surface condition within a single testing session (45 minutes).
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Trial-to-trial reliability of the three sprint attempts performed on each surface within each testing session, quantified using the absolute-agreement intraclass correlation coefficient [ICC(A,1)], coefficient of variation, standard error of measurement, typical error, and 95% minimal detectable change.
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Across the three sprint attempts performed during each surface condition within a single testing session (45 minutes).
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Between-Day Reliability of 15-m Sprint Time
Prazo: Across two testing sessions conducted on separate days within one week (each of 45 minutes).
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Stability of mean sprint time between two testing sessions conducted on separate days, quantified using the absolute-agreement intraclass correlation coefficient [ICC(A,1)], coefficient of variation, standard error of measurement, typical error, and 95% minimal detectable change.
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Across two testing sessions conducted on separate days within one week (each of 45 minutes).
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Concordance Between Sand and Firm-Surface Sprint Times
Prazo: Participant-level measurements derived from up to two testing sessions conducted within one week (each of 45 minutes).
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Agreement between participant-level mean 15-m sprint times obtained on sand and firm surfaces, evaluated using Lin's concordance correlation coefficient and Bland-Altman systematic bias and 95% limits of agreement.
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Participant-level measurements derived from up to two testing sessions conducted within one week (each of 45 minutes).
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Best 15-m Sprint Time on Sand and Firm Surfaces
Prazo: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
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Fastest time, measured in seconds, recorded from the three maximal 15-metre sprint attempts performed on each surface during each testing session.
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During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
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Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Publicações e links úteis
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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 (Real)
1 de março de 2026
Conclusão Primária (Real)
15 de março de 2026
Conclusão do estudo (Real)
15 de março de 2026
Datas de inscrição no estudo
Enviado pela primeira vez
5 de junho de 2026
Enviado pela primeira vez que atendeu aos critérios de CQ
5 de junho de 2026
Primeira postagem (Real)
10 de junho de 2026
Atualizações de registro de estudo
Última Atualização Postada (Real)
11 de junho de 2026
Última atualização enviada que atendeu aos critérios de controle de qualidade
9 de junho de 2026
Última verificação
1 de junho de 2026
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Outros números de identificação do estudo
- SANDSPRINT-OBS-01
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
SIM
Descrição do plano IPD
De-identified individual participant data underlying the results reported in the publication may be shared upon reasonable request.
Requests will be evaluated by the principal investigator and the responsible institution, considering the scientific purpose of the proposed use, participant confidentiality, ethical requirements, and compliance with applicable data-protection regulations.
Data will be provided only after approval of the request and completion of an appropriate data-use agreement.
Prazo de Compartilhamento de IPD
Data may be made available beginning after publication of the primary study results and will remain available for five years.
Critérios de acesso de compartilhamento IPD
Researchers who submit a methodologically sound proposal may request access to the de-identified data.
Requests must describe the research objectives, planned analyses, data-security procedures, and intended outputs.
Access will be subject to approval by the principal investigator and the responsible institution, as well as completion of a data-use agreement.
Tipo de informação de suporte de compartilhamento de IPD
- SEIVA
- ANALYTIC_CODE
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
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