Effects of tDCS on Anaerobic Power of Lower Limb Muscles

Healthy Volunteers Clinical Trial

Official title:

Effects of tDCS on Mechanical Power of the Leg Extensor Muscles of Healthy Subjects

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04467476
• Other study ID #: tDCS and anaerobic power
• Status: Completed
• Phase: Phase 2/Phase 3
• Start date: January 1, 2021
• Est. completion date: April 29, 2021

Study information

• Verified date: April 2021
• Source: Universidade Federal do Piauí
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Anaerobic power and capacity are essential in many human activities, especially during sports practice that demand a high strength and power of the limbs. Transcranial direct current stimulation is a noninvasive technique that can modulate motor brain areas involved in motor functions and has the potential to optimize muscle capacity. However, their effects on mechanical power are lacking.

This study aims to investigate the effects of transcranial direct current stimulation (tDCS) on mechanical power in healthy subjects.

Description:

In this study, a randomized, crossover, double-blind, placebo-controlled experimental design will be used. The 50 participants will be randomized into two groups: (1) Anodal tDCS(real) and (2) Sham tDCS. A single session of anodal and sham tDCS will be performed on each task (pre and post-jump test).

All evaluations will be performed by a single researcher who, like the participants, will not know which stimulation group will be participating. Subjects who agree to the conditions and sign the consent form may participate in the study. Participants who meet the eligibility criteria will be included in the study.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 50
• Est. completion date: April 29, 2021
• Est. primary completion date: February 28, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 35 Years

Eligibility

Inclusion Criteria:

• Healthy subjects with no complaints of pain or any kind of discomfort in the musculoskeletal system

Exclusion Criteria:

• Musculoskeletal or neurological disorder

• Under medication

• Previous treatment with tDCS

Related Conditions & MeSH terms

• Healthy Volunteers

Intervention

Device:
• Transcranial direct current stimulation
Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation (NIBS) technique that has been investigated for the management of various health conditions. However, its ergogenic effect still has controversial results.

Locations

Country	Name	City	State
Brazil	Department of Physical Therapy. Federal University of Piaui	Parnaíba	Piauí

Sponsors (1)

Lead Sponsor	Collaborator
Universidade Federal do Piauí

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Mean anaerobic power	Mean anaerobic power will be evaluated by assessing the ground reaction forces (GRF) and the number of jumps in each test by means of the kinetic analysis of the 60-second vertical jump test (Bosco's Test).	Pre and Post-test (immediately after tDCS)
Secondary	Peak anaerobic power	Peak anaerobic power will be evaluated by assessing the ground reaction forces (GRF) and the number of jumps in each test by means of the kinetic analysis of the 60-second vertical jump test (Bosco's Test).	Pre and Post-test (immediately after tDCS)
Secondary	Fatigue index	Fatigue index will be evaluated by assessing the ground reaction forces (GRF) and the number of jumps in each test by means of the kinetic analysis of the 60-second vertical jump test (Bosco's Test).; The fatigue index corresponds to the power reduction rate expressed as a percentage and reveals the degree of reduction in the ability to produce strength and maintain exercise.	Pre and Post-test (immediately after tDCS)
Secondary	Rating of perceived exertion	The subjective feeling of effort will be assessed by the Borg scale for perceived effort. This is a 15-point numerical scale that ranges from 6 to 20, where 6 means "no exertion at all" and 20 means "maximal exertion."	Post-test (immediately after tDCS)