Tired athletes at risk? new study uses smartphones to analyze landings
NCT ID NCT07648537
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how muscle tiredness changes the way female volleyball players move their legs when landing on one foot. Researchers will use smartphone videos to measure hip, knee, and ankle motion in 35 athletes. The goal is to understand injury risks better, not to test a treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 35 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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20 to 25 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Female volleyball players aged 20-25 years * Practice professional volleyball training or competition experience of at least 2 years * typically engage in a high volume of training, with regular participation in at least five training sessions per week * Willingness to adhere to fatigue protocol and provide informed consent Exclusion Criteria: * Current or recent (within the past 6 months) lower limb injury or medical condition * History of lower limb surgeries * Neurological disorders or balance impairments . * Experiencing pain or discomfort during jumping or landing tasks * Body mass index (BMI) greater than 30 kg/m² * Inability to comply with the fatigue protocol or follow instructions for the landing tasks
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
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How to take part
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The official record
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A doctor treating you
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