An observational study in Wrist Injuries, sponsored by Ahram Canadian University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 30 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-18.
Sponsored by Ahram Canadian University · Observational
This cross-sectional study investigates whether a simple Grip-Asymmetry Index (GAI) can predict self-reported wrist pain in professional e-sports athletes. Professional gamers (aged 18-30) who play at least 35 hours per week will be assessed using a Jamar dynamometer to measure maximal grip force in both hands. The study will compare GAI between two groups: those with wrist pain (≥3/10 on Visual Analog Scale during play) and those without pain. A GAI cutoff value for predicting wrist pain risk will be established through ROC analysis, with additional factors such as gaming hours, BMI, and sex incorporated into a multivariable logistic regression model.
40 studies on the registry are indexed under Wrist Injuries; 12 are open to participants now.
This study's planned enrollment of 56 is below the median of 70 across 11 observational studies indexed under Wrist Injuries.
Browse Wrist Injuries studies →Ahram Canadian University is the lead sponsor of 69 studies on the registry; 45 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Professional e-sports athletes between 18-30 years old who compete in organized video gaming competitions and receive compensation for their gaming activities. Participants will be recruited from professional e-sports teams, gaming organizations, and competitive gaming events in the region. The study population will include individuals who play competitive video games for at least 35 hours per week using standard computer peripherals (mouse and keyboard). Both male and female athletes will be eligible, and efforts will be made to recruit a representative sample across different gaming genres (FPS, MOBA, RTS, etc.) and competitive levels.
Exclusion Criteria:
Professional e-sports athletes reporting wrist pain ≥3/10 on VAS during play
Other: Pain Group
Professional e-sports athletes reporting minimal to no wrist pain (\<3/10 on VAS during play)
Other: No-Pain Group
Professional e-sports athletes who report wrist pain rated at 3 or higher on a 10-point Visual Analog Scale during gaming activities. These participants play video games professionally for at least 35 hours per week, are between 18-30 years old, and have no history of neurologic or rheumatic disease.
Professional e-sports athletes who report minimal to no wrist pain (less than 3 on a 10-point Visual Analog Scale) during gaming activities. These participants play video games professionally for at least 35 hours per week, are between 18-30 years old, and have no history of neurologic or rheumatic disease.
Grip-Asymmetry Index (GAI)
The Grip-Asymmetry Index is calculated as (Dominant hand grip strength - Non-dominant hand grip strength) / Dominant hand grip strength × 100%. Grip strength is measured in kilograms using a calibrated Jamar hand-held dynamometer following standardized testing protocols. Higher GAI values indicate greater asymmetry between dominant and non-dominant hands.
Time frame: Measured once at study enrollment
Maximal grip force in dominant hand
Maximum grip strength measured in kilograms using a calibrated Jamar hand-held dynamometer following standardized testing protocols
Time frame: Measured once at study enrollment
Maximal grip force in non-dominant hand
Maximum grip strength measured in kilograms using a calibrated Jamar hand-held dynamometer following standardized testing protocols
Time frame: Measured once at study enrollment
Wrist pain intensity during gaming
Self-reported wrist pain measured using a Visual Analog Scale (VAS) ranging from 0 (no pain) to 10 (worst pain imaginable) during typical gaming sessions
Time frame: Assessed at study enrollment, reflecting current pain experience during gaming activities
Weekly gaming hours
Self-reported average number of hours spent gaming per week
Time frame: Assessed at study enrollment, reflecting average from the past month
Plan to share: No
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Ahram Canadian University