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Effects of an ACWR-Guided Load Management Intervention on Time-Loss Injury Incidence in Chinese Elite Youth Footballers: A Cluster Randomised Controlled Trial

NCT07727382 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 847

Last updated 2026-07-27

No results posted yet for this study

Summary

This cluster-randomised controlled trial aims to evaluate whether a multi-component load management intervention-incorporating real-time acute:chronic workload ratio (ACWR) feedback, automated alerts, coach education, and structured load adjustment protocols-reduces time-loss injury incidence in Chinese elite mixed-gender adolescent football players compared with routine training practices.

Conditions

  • Time-Loss Injury Incidence

Interventions

BEHAVIORAL

ACWR-guided load management

Intervention teams implement a structured ACWR-guided load management protocol for the entire season. The protocol comprises four components: Component 1 - Load Monitoring: After each training session and match, players rate perceived exertion on the Borg CR-10 scale. Session-RPE (sRPE) is calculated as duration (minutes) × RPE score. Data are recorded using a dedicated mobile application (CoachMe v3.2). Research staff provide technical support and weekly reminders. Component 2 - Weekly ACWR Reports: The research team generates weekly ACWR reports for each player. Reports are emailed to head coaches each Monday morning, covering the preceding week's data. Component 3-Automated Alerts and Load-Adjustment Recommendations: Coaches receive automated alerts when a player's ACWR falls below 0.8 or exceeds 1.3. When ACWR \< 0.8, a progressive increase in training load (10-20% weekly) is suggested. When ACWR \> 1.3, coaches are instructed to implement a 10-20% load reduction at the next session,

Sponsors & Collaborators

  • Xinyang Agriculture and Forestry University

    lead OTHER

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
13 Years
Max Age
19 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2027-04-30
Completion
2027-04-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07727382 on ClinicalTrials.gov