Immediate Effect of Electrical Noise Stimulation on Neuromuscular Adaptation of Balance

National Yang Ming Chiao Tung University

Status: Invitation-only

Conditions: Balanced; Electroencephalography; Electromyography

Treatments: Device: electrical noise stimulation; Device: Foam; Device: Sham stimulation

Study type: Interventional

Funder types: Other

Identifiers

NCT05570890

YM111060E

Details and patient eligibility

About

Noise stimulation had an immediate effect on improving balance control. The present study aimed to clarify the immediate neuromuscular adaptation induced by noise stimulation and find the correlation between neuromuscular adaptation and functional performance.

Full description

The mechanism behind noise stimulation is called Stochastic Resonance which improves the detectivity of sensory input with the presence of noise, making sub-sensory threshold input detectable. Noise stimulation had been proved to improve postural control, Ia afferent sensitivity, and muscle activity of the tibialis anterior. With this evidence of the effect of noise stimulation on balance enhancement, the neuromuscular adaptation induced by noise stimulation has not been researched yet. Therefore, the present study aims to clarify the immediate effect of noise on neuromuscular regulation during postural control.

Enrollment: 20 estimated patients

Sex: All

Ages: 20 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• age between 20 and 40 years old
• without ankle injury history in 1 year
• without musculoskeletal or neurological diseases that would affect balance performance
• without visual impairment (except vision correction or no visual problems)
• without vestibular impairment.

Exclusion criteria

• subject who cannot tolerate the cutaneous electrical stimulation to induce H reflex
• single-leg stance (SLS) without support is shorter than 80 secs

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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20 participants in 4 patient groups

Sham stimulation on stable surface

Experimental group

Description:

The participant will not receive stimulation and will stand on flat ground.

Treatment:

Device: Sham stimulation

Noise stimulation on stable surface

Experimental group

Description:

The participant will receive stimulation with intensity set at 90% of their sensory threshold and will stand on flat ground.

Treatment:

Device: electrical noise stimulation

Sham stimulation on unstable surface

Experimental group

Description:

The participant will not receive stimulation and will stand on foam.

Treatment:

Device: Foam

Device: Sham stimulation

Noise stimulation on unstable surface

Experimental group

Description:

The participant will receive stimulation with intensity set at 90% of their sensory threshold and will stand on foam.

Treatment:

Device: Foam

Device: electrical noise stimulation