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Effect of Single-Session HVPGS on Hand Grip Strength and Reaction Time in Healthy Individuals

NCT07745829 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 42

Last updated 2026-08-04

No results posted yet for this study

Summary

The aim of this cross-sectional study is to investigate the immediate (acute) effects of a single session of High-Voltage Pulsed Galvanic Stimulation (HVPGS) on hand muscle strength and reaction time in healthy adults.

A total of 42 healthy volunteers aged 18 to 65 years undergo a single session of HVPGS applied to the forearm flexor muscles (m. flexor digitorum superficialis, m. flexor digitorum profundus, and m. flexor pollicis longus). Isometric hand grip strength is evaluated before (T0) and immediately after (T1) the intervention using a Jamar hand dynamometer. Sensorimotor reaction time is measured at the same time points using the Nelson Hand Reaction Test.

The study aims to determine whether acute HVPGS application elicits immediate bilateral enhancements in mechanical force production and central-mediated processing speed, and whether these gains interact with demographic factors or hemispheric hand dominance.

Conditions

  • Healthy Volunteers
  • Muscle Strength
  • Reaction Time
  • Neuromuscular Function

Interventions

DEVICE

High-Voltage Pulsed Galvanic Stimulation (HVPGS)

Application of a single session of High-Voltage Pulsed Galvanic Stimulation (HVPGS) targeting the forearm flexor muscles (m. flexor digitorum superficialis, m. flexor digitorum profundus, and m. flexor pollicis longus). The intervention uses an intermittent duty cycle consisting of 7 seconds of active stimulation followed by 14 seconds of rest, delivered under the direct supervision of an expert physiotherapist.

Sponsors & Collaborators

  • Kirsehir Ahi Evran Universitesi

    lead OTHER

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-06-10
Primary Completion
2025-08-10
Completion
2025-08-11

Countries

  • Turkey (Türkiye)

Study Locations

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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 NCT07745829 on ClinicalTrials.gov