Reliability and Concordance of 15-metre (15-m) Sprint Performance on Sand and Firm Surfaces
9. juni 2026 opdateret af: 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.
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
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.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
16
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Antioquia
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Guarne, Antioquia, Colombia, 054080
- Universidad de Antioquia
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ja
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
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.
Beskrivelse
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.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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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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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Mean 15-m Sprint Time on Sand and Firm Surfaces
Tidsramme: 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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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Within-Session Reliability of 15-m Sprint Time
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
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Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. marts 2026
Primær færdiggørelse (Faktiske)
15. marts 2026
Studieafslutning (Faktiske)
15. marts 2026
Datoer for studieregistrering
Først indsendt
5. juni 2026
Først indsendt, der opfyldte QC-kriterier
5. juni 2026
Først opslået (Faktiske)
10. juni 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
11. juni 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
9. juni 2026
Sidst verificeret
1. juni 2026
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- SANDSPRINT-OBS-01
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
JA
IPD-planbeskrivelse
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.
IPD-delingstidsramme
Data may be made available beginning after publication of the primary study results and will remain available for five years.
IPD-delingsadgangskriterier
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.
IPD-deling Understøttende informationstype
- SAP
- ANALYTIC_CODE
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