Effects of ascending and descending direct current on grip strength assessed through dynamometry and myofeedback: A randomized controlled trial
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Archivos
Fecha
2020
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
ISSN de la revista
Título del volumen
Editor
University School of Physical Education in Wroclaw
Nombre de Curso
Licencia CC
CC BY-NC-SA 4.0 DEED Atribución-NoComercial-CompartirIgual 4.0 Internacional
Licencia CC
https://creativecommons.org/licenses/by-nc-sa/4.0/deed.es
Resumen
Introduction. To investigate effects of ascending and descending direct current (ADC and DD C) on muscle strength evaluated with dynamometry. Muscle strength values in kilograms were compared in 3 groups (ADC, DD C, and control) before and after galvanic electrical intervention. Methods. A randomized clinical trial was performed in the Physiotherapy Laboratory of Andres Bello University among 83 healthy volunteers. The intervention was a direct current session at an intensity of 4 mA for 12 minutes with 48-cm2 electrodes (dose: 48 mA · min;current density: 0.04 mA/cm2). The difference between the groups was galvanic therapy type applied. Current application followed a hand dynamometric test and myofeedback evaluation. The main outcome was maximum strength difference (MSdif) and its corresponding value in microvolts (μV-MSdif) obtained with myofeedback. Results. There were statistically significant changes regarding MSdif in groups who received direct current (p = 0.0001). These variations were also seen when comparing the 3 groups with the consideration of men (p = 0.0012) and women (p = 0.0021) separately. No statistically significant changes were observed in the μV-MSdif values (p = 0.9409). Conclusions. ADC can generate variations in grip strength after an intervention session, with an increase in strength of 8.9%. The increase in strength was observed both in men (6.7%) and in women (9%) of the ADC group.
Notas
Indexación: Scopus
Palabras clave
Electrical stimulation therapy, Hand strength, Handheld dynamometry, Randomized controlled trial, Transcutaneous electric nerve stimulation
Citación
Physiotherapy Quarterly Volume 28, Issue 2, Pages 1 - 8 2020
DOI
10.5114/PQ.2020.92471