Acute Effects of Smartphone-Delivered Local Vibration on Hand Sensorimotor Performance
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-25
SponsorAcibadem University
About this trial
This study investigates the acute effects of smartphone-delivered local vibration on hand sensorimotor performance in healthy young adults. Using a custom-developed iPhone application, three vibration frequencies (80 Hz, 150 Hz, and 220 Hz) are applied to the dominant hand in a randomized crossover design with a minimum 48-hour washout between sessions.
The primary aim is to evaluate frequency-dependent dose-response effects on hand grip strength. Secondary aims include assessment of two-point discrimination (tactile spatial acuity), pressure pain threshold, and hand reaction time before and immediately after each vibration condition.
The study seeks to generate evidence on optimal application parameters for smartphone vibration as an accessible and portable local vibration source in clinical and educational settings.
Eligibility criteria
Qualifiers
Healthy university students aged 18-25 years
Willing to participate and provide written informed consent
Able to attend three separate measurement sessions
Disqualifiers
Surgical intervention on the hand or wrist within the past 6 months
Serious upper extremity injury or trauma within the past 6 months
Diagnosis of carpal tunnel syndrome or peripheral nerve entrapment
Numbness, paresthesia, or sensory impairment in the hand or wrist
Trial design
Treatments tested in this trial
- Smartphone Local Vibration at 80 Hz
- Smartphone Local Vibration at 150 Hz
- Smartphone Local Vibration at 220 Hz
Treatment groups
20 Participants
are divided into 3 treatment groupsSponsors and collaborators
Source ClinicalTrials.gov