The Effects of Different Montages of tDCS on Muscle Strength in Healthy Adults

The Effects of Different Montages of Transcranial Direct Current Stimulation on Muscle Strength in Healthy Adults

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04672109

Enrollment

Registered

2020-12-17

Start date

2020-11-16

Completion date

2022-05-31

Last updated

2022-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

To investigate the effects of different montages of tDCS on muscle strength in healthy adults

Detailed description

Electrode montage or placement of tDCS over primary motor cortex can be categorized into unilateral (anodal or cathodal electrode over primary motor area) and bilateral tDCS (both anodal and cathodal electrode over the cortex). Previous studies reported benefits of different tDCS montages on muscle performance in healthy participants. However, there is no guideline for tDCS montages. This study aims to investigate immediate effects of different tDCS montages on muscle strength in healthy participants.

Interventions

DEVICETranscranial direct current stimulation

Dual/Cathodal/Anodal/Sham tDCS will be applied in 2 mA, 20 mins. All experiments will be performed in random order for each subject.

Study design

Allocation

RANDOMIZED

Intervention model

FACTORIAL

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

1. Healthy adults 2. Age range between 18 - 60 years old 3. Right-handed dominant identified by the Edinburg Handedness Inventory 4. No recent muscle injuries of both limbs for a past 6-months

Exclusion criteria

1. Consumed caffeine within 24 hours prior the experiment 2. History of neurological symptoms i.e. seizures, weakness, loss of sensation or unclear history of pass illness 3. Present of metal implantation, intracranial shunt, cochlear implantation or cardiac pacemakers 4. Present of opened wound or infectious wound around scalp

Design outcomes

Primary

Measure	Time frame	Description
Change from baseline muscle strength after tDCS	Baseline (Pretest) and 40 minutes ( posttest)	Muscle strength will be measured in Newton by using a hand-held dynamometer.

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026