Brief Structured Team Reflection Embedded in Elite Underwater Rugby Training (BSTR-UWR)
BSTR-UWR
1 other identifier
interventional
25
1 country
1
Brief Summary
This single-arm field evaluation examined whether a brief, structured team reflection routine embedded within usual elite underwater rugby training was associated with change in team cohesion, psychological safety, peer trust, and team identification across three measurement occasions. Twenty-five male athletes contributed at least one assessment. Baseline responses were recorded on 16-17 February 2026 (T0), midpoint responses after session 6 on 5-9 March 2026 (T1), and endpoint responses after session 12 on 18 March 2026 (T2). The registered plan anticipated 16 sessions over six weeks; operational delivery concluded after 12 sessions, and no later follow-up was conducted.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Feb 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 16, 2026
CompletedFirst Submitted
Initial submission to the registry
February 26, 2026
CompletedFirst Posted
Study publicly available on registry
March 4, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 18, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
March 18, 2026
CompletedSeptember 8, 2026
September 1, 2026
1 month
February 26, 2026
September 2, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Team Cohesion (GEQ-12 short form)
Team cohesion measured using the Spanish 12-item short form of the Group Environment Questionnaire (GEQ). Items are rated on a 1-9 scale; negatively keyed items are reverse-scored. A composite cohesion score is computed as the mean of items, with higher scores indicating greater perceived cohesion.
Baseline 16-17 February 2026 (T0, pre-intervention; up to 5 minutes); T1: 5-9 March 2026 (after session 6; T1; up to 5 minutes) and T2: 18 March 2026 (after session 12; post-intervention; up to 5 minutes)
Secondary Outcomes (3)
Psychological Safety (Edmondson 7-item Team Psychological Safety scale)
Baseline 16-17 February 2026 (T0, pre-intervention; up to 5 minutes); T1: 5-9 March 2026 (after session 6; T1; up to 5 minutes) and T2: 18 March 2026 (after session 12; post-intervention; up to 5 minutes)
Peer Trust (HERO horizontal trust, 4-item team-referent measure)
Baseline 16-17 February 2026 (T0, pre-intervention; up to 5 minutes); T1: 5-9 March 2026 (after session 6; T1; up to 5 minutes) and T2: 18 March 2026 (after session 12; post-intervention; up to 5 minutes)
Team Identification (6-item team-referent identification scale)
Baseline 16-17 February 2026 (T0, pre-intervention; up to 5 minutes); T1: 5-9 March 2026 (after session 6; T1; up to 5 minutes) and T2: 18 March 2026 (after session 12; post-intervention; up to 5 minutes)
Study Arms (1)
Usual elite underwater rugby training plus BSTR
EXPERIMENTALParticipants continued usual elite underwater rugby training and took part in 12 embedded Brief Structured Team Reflection sessions. There was no separate control arm.
Interventions
Twelve brief, structured team-reflection sessions were embedded within usual elite underwater rugby training. Athletes responded to concise prompts in turn under a 'share-only' rule that prohibited interruption, rebuttal, blame, selection discussion, and cross-talk. Sessions normally closed with an observable cue, rule, norm, or micro-habit for the next training experience. The registered plan anticipated 16 sessions; operational delivery concluded after session 12.
Eligibility Criteria
You may qualify if:
- Male elite underwater rugby athletes aged 18 years or older.
- Officially rostered in the squad and training regularly (minimum 2 sessions per week).
- Able to complete Spanish-language questionnaires.
- Willing to participate and provide written informed consent.
- Available to complete assessments at baseline (T0), week 3 (T1), and week 6 (T2).
You may not qualify if:
- Unable to complete the questionnaires reliably (e.g., language/comprehension barriers).
- Anticipated prolonged absence during the 6-week period that would prevent meaningful exposure to the intervention and/or completion of follow-up assessments.
- Declines participation or does not provide informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Tecnológico de Antioquia
Guarne, Antioquia, 054080, Colombia
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Sponsor investigator
Study Record Dates
First Submitted
February 26, 2026
First Posted
March 4, 2026
Study Start
February 16, 2026
Primary Completion
March 18, 2026
Study Completion
March 18, 2026
Last Updated
September 8, 2026
Record last verified: 2026-09
Data Sharing
- IPD Sharing
- Will not share
Individual participant data (IPD) will not be shared publicly. The sample is small and drawn from a single, identifiable elite underwater rugby squad, so even de-identified records could carry a meaningful risk of re-identification when combined with contextual information (e.g., roster composition, training attendance patterns, and time-point assessments). Participant consent covers analysis and publication of aggregated results rather than unrestricted public release of participant-level data. Summary statistics and full methodological details will be reported in publications. De-identified extracts or additional details may be considered on a case-by-case basis, subject to a data-use agreement, ethics approval, and safeguards that minimise re-identification risk.