Football (Soccer) Sprint PerformanceNCT07638475
Reliability and Concordance of 15-metre (15-m) Sprint Performance on Sand and Firm Surfaces
An observational study of Football (Soccer) Sprint Performance, run by Federal University of Vicosa at 1 site in Colombia.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 years and older, men onlyHealthy volunteers can take part
- Conditions the study is for
- Football (Soccer) Sprint Performance
- How many people
- 16 participants
- Where
- 1 siteColombia
- Study dates
- 1 Mar 2026to 15 Mar 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Study population: 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.
Who may be able to join
- 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.
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: 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.
Read the detailed description
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.
- Conditions
- Football (Soccer) Sprint Performance
- Keywords
- beach soccer, reliability, sprint, sand, concordance, measurement error
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| 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. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean 15-m Sprint Time on Sand and Firm Surfaces
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.
Measured: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
Secondary outcomes (4)
Best 15-m Sprint Time on Sand and Firm Surfaces
Fastest time, measured in seconds, recorded from the three maximal 15-metre sprint attempts performed on each surface during each testing session.
Measured: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
Within-Session Reliability of 15-m Sprint Time
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.
Measured: Across the three sprint attempts performed during each surface condition within a single testing session (45 minutes).
Between-Day Reliability of 15-m Sprint Time
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.
Measured: Across two testing sessions conducted on separate days within one week (each of 45 minutes).
Concordance Between Sand and Firm-Surface Sprint Times
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.
Measured: Participant-level measurements derived from up to two testing sessions conducted within one week (each of 45 minutes).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Jun 2026
- Study start1 Mar 2026
- Primary completion15 Mar 2026
- Study completion15 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Football (Soccer) Sprint PerformanceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 16 participants (actual)
Sponsor and investigators
- Lead sponsor
- Federal University of Vicosa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Édison Andrés Pérez Bedoya, Federal University of Vicosa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07638475
- Sponsor's protocol ID
- SANDSPRINT-OBS-01
- Status last verified
- Jun 2026
- First submitted
- 5 Jun 2026
- Last updated
- 11 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: 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.
Publications
Larsen MN, Ermidis G, Brito J, Orner C, Martins C, Lemos LF, Krustrup P, Rago V. Fitness and Performance Testing of Male and Female Beach Soccer Players-A Preliminary Investigation. Front Sports Act Living. 2021 Feb 23;3:636308. doi: 10.3389/fspor.2021.636308. eCollection 2021.
PubMed 33709072
Study at a glance
From the registry record, last updated by the sponsor on 11 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT07638475
- Acronym / sponsor ID
- SANDSPRINT-OBS-01
- Conditions
- Football (Soccer) Sprint Performance
- Keywords
- beach soccer, reliability, sprint, sand, concordance, measurement error
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 16 participants (actual)
- Lead sponsor
- Federal University of VicosaUniversity, hospital or other
- Study start
- 1 Mar 2026 (actual)
- Primary completion
- 15 Mar 2026 (actual)
- Study completion
- 15 Mar 2026 (actual)
- First posted
- 10 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
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.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 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. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- 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.
Key inclusion criteria (4 listed)
- 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.
Key exclusion criteria (3 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Mean 15-m Sprint Time on Sand and Firm Surfaces
Time frame: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
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.
4 secondary outcomes
Best 15-m Sprint Time on Sand and Firm Surfaces
Time frame: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.
Within-Session Reliability of 15-m Sprint Time
Time frame: Across the three sprint attempts performed during each surface condition within a single testing session (45 minutes).
Between-Day Reliability of 15-m Sprint Time
Time frame: Across two testing sessions conducted on separate days within one week (each of 45 minutes).
Concordance Between Sand and Firm-Surface Sprint Times
Time frame: Participant-level measurements derived from up to two testing sessions conducted within one week (each of 45 minutes).
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Jun 2026.
- Background: PubMed 33709072Larsen MN, Ermidis G, Brito J, Orner C, Martins C, Lemos LF, Krustrup P, Rago V. Fitness and Performance Testing of Male and Female Beach Soccer Players-A Preliminary Investigation. Front Sports Act Living. 2021 Feb 23;3:636308. doi: 10.3389/fspor.2021.636308. eCollection 2021.
- Individual participant dataSharing planned: Yes. 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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Football (Soccer) Sprint Performance, run by Federal University of Vicosa at 1 site in Colombia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 11 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Colombia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean 15-m Sprint Time on Sand and Firm Surfaces (time frame: During up to two testing sessions, each lasting approximately 45 minutes, conducted on separate days within one week.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07638475, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Jun 2026.