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

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

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.

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