The PERT Study - Training Factors of PERformance and Injuries (PERT)
The goal of this observational study was to learn about injuries in professional football players and to find out whether daily monitoring data could help predict injuries. The study followed male players from the first team and the reserve team of a French first-division professional football club over one full competitive season.
The main questions were:
How often did injuries occur among players over the season? Which day-to-day changes in routinely monitored data were linked to the onset of a new injury (all injuries combined, intrinsic and extrinsic)? Were the results similar when looking only at intrinsic injuries?
Each day, the club's staff recorded each player's physical workload during training sessions and matches using tracking technology. Players also reported how they felt, including sleep, fatigue, mood, and pain. New injuries were recorded daily by the club's medical staff. Players took part through the club's usual daily monitoring, with no additional tests or visits.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Clermont-Ferrand, France
- CHU de Clermont-Ferrand
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Male football players from the first team and the reserve team of a French first-division professional football club, followed over one full competitive season.
Description
Inclusion Criteria:
- Male football players belonging to the first team or the reserve team of the participating French first-division professional football club during the study season
Exclusion Criteria:
- Fewer than 20 days of available monitoring data during the season
Study Plan
How is the study designed?
Design Details
- Observational Models: COHORT
- Time Perspectives: RETROSPECTIVE
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
|---|---|
|
Professional football players
Male players from the first team and the reserve team of a French first-division professional football club, followed daily over one full competitive season through the club's routine monitoring of external workload, self-reported wellness and injury status. |
No intervention was assigned. Data came from the club's usual daily monitoring: external workload measured by tracking technology during training sessions and matches, and self-reported sleep, fatigue, mood, pain and perceived intensity. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Injury prevalence and occurrence of new injuries
Time Frame: Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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Daily injury status (non-injured or injured) recorded by the club's medical staff, used to describe season-long injury prevalence. |
Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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Player characteristics
Time Frame: Daily from June 26, 2023, to May 19, 2024 (47 weeks).
|
Age (years), professional status (reserve team or professional), playing position (defender, midfielder or forward) and number of previous injuries (0, 1 or ≥2), examined as putative factors associated with injury occurrence. |
Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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External workload
Time Frame: Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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Measured by tracking technology during training sessions and matches: match exposure (yes or no), session duration (minutes), total distance covered (km), number of accelerations and decelerations per day, distance covered (m) and number of sprints per day at 80-90% and 90-100% of each player's individual maximal speed. Examined as putative factors associated with injury occurrence. |
Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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Self-reported wellness and perceived exertion
Time Frame: Daily from June 26, 2023, to May 19, 2024 (47 weeks).
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Sleep time (hours/day), sleep quality (1 = best to 7 = worst), mood (1 = best to 7 = worst), fatigue (1 = min to 7 = max), pain (1 = min to 7 = max) and perceived exertion (1 = min to 10 = max). Examined as putative factors associated with injury occurrence. |
Daily from June 26, 2023, to May 19, 2024 (47 weeks).
|
Collaborators and Investigators
Investigators
- Principal Investigator: Frédéric Dutheil, University Hospital, Clermont-Ferrand
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2023_DUTHEIL (PERT)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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