Biomechanical DataBARRIER-STEP-FNCT07539246
Barrier-Step Action in Elite Futsal Goalkeepers
An observational study of Biomechanical Data and Sport Performance, Professional Overhead Athletes, run by Federal University of Vicosa at 1 site in Colombia.
Trial summary
This observational case series examined the barrier-step action in elite futsal goalkeepers. The aim was to describe how this goalkeeper-specific defensive movement was organised in time and how selected body angles were configured during execution. 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
- Biomechanical Data, Sport Performance, Professional Overhead Athletes, Futsal
- What is being tested?
- Standardised barrier-step assessment task
- How many people
- 3 participants
- Where
- 1 siteColombia
- Study dates
- 7 Sep 2021to 7 Sep 2021
- 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: Elite male professional futsal goalkeepers with international experience who underwent a single-session standardised biomechanical assessment of the barrier-step action.
Who may be able to join
- Male futsal goalkeeper
- Competing at professional level
- International competitive experience
- Able to perform the standardised barrier-step assessment task under indoor conditions
- Able to complete three valid dominant-side trials
- Provided written informed consent
Who cannot join
- Failure to meet the inclusion criteria
- Inability to complete the standardised assessment task
- Inability to complete three valid dominant-side trials
- Video recordings in which the full movement sequence or required analytical landmarks could not be identified frame by frame
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Temporal Organisation and Projected Two-Dimensional Kinematics of the Barrier-Step Action in Elite Futsal Goalkeepers: An Observational Case Series
This observational case series examined the barrier-step action in elite futsal goalkeepers. The aim was to describe how this goalkeeper-specific defensive movement was organised in time and how selected body angles were configured during execution. Three male professional futsal goalkeepers with international experience each performed three valid dominant-side trials under standardised indoor conditions. The task involved responding to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m.
Video data were recorded using a GoPro Hero 10 camera operating at 240 frames per second and analysed frame by frame in Kinovea. The movement was segmented into three operational intervals: initiation-propulsion, lateral transfer, and terminal support-stabilisation. Projected shoulder, hip, knee, and ankle angles were extracted at two analytically defined instants: the end of Interval 1 and the blocking configuration reached during Interval 2. Descriptive statistics were used to characterise between-goalkeeper variation and within-goalkeeper consistency in the barrier-step action.
Read the detailed description
This study was designed as an exploratory descriptive observational case series aimed at characterising selected projected two-dimensional kinematic features of the barrier-step action in elite futsal goalkeepers. Given the limited biomechanical description of this goalkeeper-specific defensive movement, the purpose was to provide an initial field-based account of its temporal organisation and selected joint-angle configurations rather than to test inferential hypotheses.
Three male professional futsal goalkeepers with international representation were purposively recruited. Each participant completed three valid dominant-side trials in response to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m. To reduce between-trial variability in the initial condition, each repetition began with a standardised movement towards the opposite post. The analytical sequence began only after completion of this manoeuvre.
All trials were recorded using a GoPro Hero 10 camera operating at 240 frames per second. The camera was mounted on a tripod at a height of 0.9 m and positioned 6 m from the movement area, with the optical axis aligned as closely as possible to the primary plane of motion. Because the study relied on single-camera two-dimensional video analysis, all outputs were interpreted as projected image-plane measures rather than true three-dimensional joint kinematics.
For analytical purposes, the movement was segmented into three operational intervals: initiation-propulsion, lateral transfer, and terminal support-stabilisation. Angular variables were extracted at two analytical instants: the end of Interval 1 and the blocking configuration reached during Interval 2. The projected angular variables were shoulder, hip, knee, and ankle angles. Temporal variables included the duration of each operational interval. Video analysis was performed frame by frame in Kinovea by a single investigator, and intra-rater reliability was assessed by repeated analysis after a 7-day interval. Descriptive statistics were used throughout to characterise temporal organisation, angular configuration, and between-goalkeeper variation in the barrier-step action.
- Being tested
- Standardised barrier-step assessment task
- Keywords
- futsal, goalkeeper, barrier-step action, two-dimensional kinematics, field-based biomechanics
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standardised barrier-step assessment taskOther
Participants performed the barrier-step action in response to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m. Each participant completed three valid dominant-side trials under standardised indoor conditions, and the movement was analysed using single-camera two-dimensional video.
| Study group | Role | What they receive |
|---|---|---|
| Elite futsal goalkeepers | Male professional futsal goalkeepers with international experience who completed three valid dominant-side trials of the barrier-step action under standardised indoor conditions. Receives: Other: Standardised barrier-step assessment task |
What is being measured
The primary outcome is the main question the study is designed to answer.
Interval-specific temporal organisation of the barrier-step action
Duration of initiation-propulsion, lateral transfer, and terminal support-stabilisation, expressed in seconds and derived from frame-by-frame analysis of 240-Hz video recordings.
Measured: Assessed during the single biomechanical assessment session on September 7, 2021
Projected joint-angle configuration during the barrier-step action
Projected shoulder, hip, knee, and ankle angles extracted from two analytically defined instants: the end of Interval 1 and the blocking configuration reached during Interval 2.
Measured: Assessed during the single biomechanical assessment session on September 7, 2021, at analytical instant 1 and analytical instant 2
Secondary outcomes (2)
Relative temporal contribution of each movement interval
Percentage contribution of Interval 1, Interval 2, and Interval 3 to total sequence duration.
Measured: Assessed during the single biomechanical assessment session on September 7, 2021
Angular change from Interval 1 to Interval 2
Change in projected ankle, knee, hip, and shoulder angles from the end of Interval 1 to the blocking configuration reached during Interval 2.
Measured: Assessed during the single biomechanical assessment session on September 7, 2021, from analytical instant 1 to analytical instant 2
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Apr 2026
- Study start7 Sep 2021
- Primary completion7 Sep 2021
- Study completion7 Sep 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Biomechanical DataStudies 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
- 3 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
- NCT07539246
- Sponsor's protocol ID
- TDEA-BARRIERSTEP-2026-01
- Acronym
- BARRIER-STEP-F
- Status last verified
- Apr 2026
- First submitted
- 13 Apr 2026
- Last updated
- 21 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual participant data underlying the reported temporal and projected angular outcomes will be shared, including interval-specific time data, projected shoulder, hip, knee, and ankle angles at the two analytical instants, relative temporal contribution of each interval, and angular change from Interval 1 to Interval 2. Raw video files will not be shared in order to protect participant confidentiality and identity.
Publications
White A, Hills SP, Cooke CB, Batten T, Kilduff LP, Cook CJ, Roberts C, Russell M. Match-Play and Performance Test Responses of Soccer Goalkeepers: A Review of Current Literature. Sports Med. 2018 Nov;48(11):2497-2516. doi: 10.1007/s40279-018-0977-2.
PubMed 30144021Ibrahim R, Kingma I, de Boode VA, Faber GS, van Dieen JH. Kinematic and kinetic analysis of the goalkeeper's diving save in football. J Sports Sci. 2019 Feb;37(3):313-321. doi: 10.1080/02640414.2018.1499413. Epub 2018 Jul 23.
PubMed 30036138Colyer SL, Evans M, Cosker DP, Salo AIT. A Review of the Evolution of Vision-Based Motion Analysis and the Integration of Advanced Computer Vision Methods Towards Developing a Markerless System. Sports Med Open. 2018 Jun 5;4(1):24. doi: 10.1186/s40798-018-0139-y.
PubMed 29869300
Study at a glance
From the registry record, last updated by the sponsor on 21 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Temporal Organisation and Projected Two-Dimensional Kinematics of the Barrier-Step Action in Elite Futsal Goalkeepers: An Observational Case Series
- ClinicalTrials.gov ID
- NCT07539246
- Acronym / sponsor ID
- BARRIER-STEP-F / TDEA-BARRIERSTEP-2026-01
- Keywords
- futsal, goalkeeper, barrier-step action, two-dimensional kinematics, field-based biomechanics
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 3 participants (actual)
- Lead sponsor
- Federal University of VicosaUniversity, hospital or other
- Study start
- 7 Sep 2021 (actual)
- Primary completion
- 7 Sep 2021 (actual)
- Study completion
- 7 Sep 2021 (actual)
- First posted
- 20 Apr 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 case series examined the barrier-step action in elite futsal goalkeepers. The aim was to describe how this goalkeeper-specific defensive movement was organised in time and how selected body angles were configured during execution. Three male professional futsal goalkeepers with international experience each performed three valid dominant-side trials under standardised indoor conditions. The task involved responding to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m.
Video data were recorded using a GoPro Hero 10 camera operating at 240 frames per second and analysed frame by frame in Kinovea. The movement was segmented into three operational intervals: initiation-propulsion, lateral transfer, and terminal support-stabilisation. Projected shoulder, hip, knee, and ankle angles were extracted at two analytically defined instants: the end of Interval 1 and the blocking configuration reached during Interval 2. Descriptive statistics were used to characterise between-goalkeeper variation and within-goalkeeper consistency in the barrier-step action.
Detailed description
This study was designed as an exploratory descriptive observational case series aimed at characterising selected projected two-dimensional kinematic features of the barrier-step action in elite futsal goalkeepers. Given the limited biomechanical description of this goalkeeper-specific defensive movement, the purpose was to provide an initial field-based account of its temporal organisation and selected joint-angle configurations rather than to test inferential hypotheses.
Three male professional futsal goalkeepers with international representation were purposively recruited. Each participant completed three valid dominant-side trials in response to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m. To reduce between-trial variability in the initial condition, each repetition began with a standardised movement towards the opposite post. The analytical sequence began only after completion of this manoeuvre.
All trials were recorded using a GoPro Hero 10 camera operating at 240 frames per second. The camera was mounted on a tripod at a height of 0.9 m and positioned 6 m from the movement area, with the optical axis aligned as closely as possible to the primary plane of motion. Because the study relied on single-camera two-dimensional video analysis, all outputs were interpreted as projected image-plane measures rather than true three-dimensional joint kinematics.
For analytical purposes, the movement was segmented into three operational intervals: initiation-propulsion, lateral transfer, and terminal support-stabilisation. Angular variables were extracted at two analytical instants: the end of Interval 1 and the blocking configuration reached during Interval 2. The projected angular variables were shoulder, hip, knee, and ankle angles. Temporal variables included the duration of each operational interval. Video analysis was performed frame by frame in Kinovea by a single investigator, and intra-rater reliability was assessed by repeated analysis after a 7-day interval. Descriptive statistics were used throughout to characterise temporal organisation, angular configuration, and between-goalkeeper variation in the barrier-step action.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Elite futsal goalkeepers | – | Other: Standardised barrier-step assessment taskMale professional futsal goalkeepers with international experience who completed three valid dominant-side trials of the barrier-step action under standardised indoor conditions. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Elite male professional futsal goalkeepers with international experience who underwent a single-session standardised biomechanical assessment of the barrier-step action.
Key inclusion criteria (6 listed)
- Male futsal goalkeeper
- Competing at professional level
- International competitive experience
- Able to perform the standardised barrier-step assessment task under indoor conditions
- Able to complete three valid dominant-side trials
Key exclusion criteria (4 listed)
- Failure to meet the inclusion criteria
- Inability to complete the standardised assessment task
- Inability to complete three valid dominant-side trials
- Video recordings in which the full movement sequence or required analytical landmarks could not be identified frame by frame
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standardised barrier-step assessment taskParticipants performed the barrier-step action in response to a standardised low ball stimulus delivered by the coach from the penalty mark at a distance of 5 m. Each participant completed three valid dominant-side trials under standardised indoor conditions, and the movement was analysed using single-camera two-dimensional video. | Other | Elite futsal goalkeepers |
Primary outcome
Interval-specific temporal organisation of the barrier-step action
Time frame: Assessed during the single biomechanical assessment session on September 7, 2021
Duration of initiation-propulsion, lateral transfer, and terminal support-stabilisation, expressed in seconds and derived from frame-by-frame analysis of 240-Hz video recordings.
Projected joint-angle configuration during the barrier-step action
Time frame: Assessed during the single biomechanical assessment session on September 7, 2021, at analytical instant 1 and analytical instant 2
Projected shoulder, hip, knee, and ankle angles extracted from two analytically defined instants: the end of Interval 1 and the blocking configuration reached during Interval 2.
2 secondary outcomes
Relative temporal contribution of each movement interval
Time frame: Assessed during the single biomechanical assessment session on September 7, 2021
Angular change from Interval 1 to Interval 2
Time frame: Assessed during the single biomechanical assessment session on September 7, 2021, from analytical instant 1 to analytical instant 2
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 21 Apr 2026.
- Background: PubMed 30144021White A, Hills SP, Cooke CB, Batten T, Kilduff LP, Cook CJ, Roberts C, Russell M. Match-Play and Performance Test Responses of Soccer Goalkeepers: A Review of Current Literature. Sports Med. 2018 Nov;48(11):2497-2516. doi: 10.1007/s40279-018-0977-2.
- Background: PubMed 30036138Ibrahim R, Kingma I, de Boode VA, Faber GS, van Dieen JH. Kinematic and kinetic analysis of the goalkeeper's diving save in football. J Sports Sci. 2019 Feb;37(3):313-321. doi: 10.1080/02640414.2018.1499413. Epub 2018 Jul 23.
- Background: PubMed 29869300Colyer SL, Evans M, Cosker DP, Salo AIT. A Review of the Evolution of Vision-Based Motion Analysis and the Integration of Advanced Computer Vision Methods Towards Developing a Markerless System. Sports Med Open. 2018 Jun 5;4(1):24. doi: 10.1186/s40798-018-0139-y.
- Individual participant dataSharing planned: Yes. De-identified individual participant data underlying the reported temporal and projected angular outcomes will be shared, including interval-specific time data, projected shoulder, hip, knee, and ankle angles at the two analytical instants, relative temporal contribution of each interval, and angular change from Interval 1 to Interval 2. Raw video files will not be shared in order to protect participant confidentiality and identity.
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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 Biomechanical Data and Sport Performance, Professional Overhead Athletes, 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 6 inclusion and 4 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 21 Apr 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?
Interval-specific temporal organisation of the barrier-step action (time frame: Assessed during the single biomechanical assessment session on September 7, 2021). The study lists 2 primary outcomes in all. 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 NCT07539246, which also lists 3 linked publications.
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 21 Apr 2026.