The Effects of Whole Body Vibration in People With Chronic Stroke

The Hong Kong Polytechnic University

Status: Completed

Conditions: Stroke

Treatments: Procedure: Low frequency whole body vibration; Procedure: High frequency whole body vibration

Study type: Interventional

Funder types: Other

Identifiers

NCT03982251

HSEARS20140226001-03

Details and patient eligibility

About

Whole body vibration (WBV) has been found to be useful in promoting bone health and muscle performance in older adults. To date, no study has examined the effects of different WBV frequencies on the properties of the muscle-bone unit in stroke patients. The overall aim of the proposed study is to compare the efficacy of different vibration frequencies on properties of the muscle function and bone turnover among people with chronic stroke.

It is hypothesized that the higher-vibration frequency protocol will lead to significantly better outcomes related to the bone turnover and muscle function.

Full description

Whole body vibration (WBV) has been found to be useful in promoting bone health and muscle performance in older adults. To date, no study has examined the effects of different WBV frequencies on the properties of the muscle-bone unit in stroke patients. The overall aim of the proposed study is to compare the efficacy of different vibration frequencies on properties of the muscle function and bone turnover among people with chronic stroke.

It is hypothesized that the higher-vibration frequency protocol will lead to significantly better outcomes related to the bone turnover and muscle function in people with chronic stroke.

Enrollment: 80 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. a diagnosis of stroke
2. stroke onset >6 months
3. >18 years of age
4. able to walk for short distance independently with or without walking aid
5. able to understand simple verbal commands

Exclusion criteria

1. neurological conditions other than stroke
2. significant musculoskeletal conditions (e.g. amputations)
3. metal implants in the lower extremity
4. previous fracture of the lower extremity
5. are currently taking bone resorption inhibitors or were taking the same before stroke.
6. significant peripheral vascular disease
7. vestibular disorders
8. pregnancy
9. Other serious illnesses that preclude the person from participating in the study

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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80 participants in 2 patient groups

High frequency whole body vibration

Experimental group

Description:

This group will receive a single 8-minute session of WBV therapy. The frequency of the vibration signals will be set at 30Hz.

Treatment:

Procedure: High frequency whole body vibration

low frequency whole body vibration

Active Comparator group

Description:

This group will receive a single 12-minute session of WBV. The frequency of the vibration signals will be set at 20 Hz.

Treatment:

Procedure: Low frequency whole body vibration