Barrier-Step Action in Elite Futsal Goalkeepers

NCT07539246 | Completed DMC

• 1 other identifier: TDEA-BARRIERSTEP-2026-01
• Study Type: observational
• Target: 3
• Locations: 1 country
• Sites: 1

Brief 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. 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.

Conditions

Biomechanical Data; Sport Performance, Professional Overhead Athletes; Futsal

Keywords

futsal; goalkeeper; barrier-step action; two-dimensional kinematics; field-based biomechanics

Outcome Measures

Primary Outcomes (2)

• 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.

  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.

  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

  Assessed during the single biomechanical assessment session on September 7, 2021

• Angular change from Interval 1 to Interval 2

  Assessed during the single biomechanical assessment session on September 7, 2021, from analytical instant 1 to analytical instant 2

Study Arms (1)

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.

Other: Standardised barrier-step assessment task

Interventions

Standardised barrier-step assessment task OTHER

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.

Elite futsal goalkeepers

Eligibility Criteria

• Age: 18 Years+
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Elite male professional futsal goalkeepers with international experience who underwent a single-session standardised biomechanical assessment of the barrier-step action.

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Federal University of Vicosa: lead

Study Sites (1)

Tecnológico de Antioquia

Guarne, Antioquia, 054080, Colombia

Location

Related Publications (3)

• 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 Medicine. 2018;48(11):2497-2516. doi:10.1007/s40279-018-0977-2

  BACKGROUND

• Ibrahim R, Kingma I, De Boode VA, Faber GS, Van Dieën JH. Kinematic and kinetic analysis of the goalkeeper's diving save in football. Journal of Sports Sciences. 2019;37(3):313-321. doi:10.1080/02640414.2018.1499413

  BACKGROUND

• Colyer 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 Medicine - Open. 2018;4(1):24. doi:10.1186/s40798-018-0139-y

  BACKGROUND

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator PhD

Study Record Dates

• First Submitted: April 13, 2026
• First Posted: April 20, 2026
• Study Start: September 7, 2021
• Primary Completion: September 7, 2021
• Study Completion: September 7, 2021
• Last Updated: April 21, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, ANALYTIC CODE
• Time Frame: De-identified individual participant data, the study protocol, and analytic code will be available beginning 3 months after publication and for 5 years thereafter.
• Access Criteria: De-identified individual participant data underlying the reported temporal and projected angular outcomes, together with the study protocol and analytic code, will be made available to qualified researchers upon reasonable request to the corresponding author. Requests must describe a scientifically sound secondary analysis and will be reviewed for scientific merit, feasibility, and consistency with ethical and confidentiality restrictions. Raw video files will not be shared in order to protect participant confidentiality and identity.

Locations

CO (1)