Vibration Induced Reflex Responses and Estimation of TVR

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-23

Study Completion Date

2018-03-23

Brief Summary

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The aim of this study is to estimate tonic vibration latency and whole body vibration reflex latency

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Detailed Description

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This study was included 17 patients with spastic spinal cord lesions and 23 healthy control.

Soleus T-reflex, soleus H-reflex, soleus tonic vibration reflex (TVR), and reflex muscle response induced by whole body vibration was evaluated this study. To obtain the H-reflex response, the tibial nerve in the popliteal region was stimulated by using a stimulator (FE155 Stimulator HC ADInstrument, Oxford UK) with 1 ms-pulse current. The records was taken with the Ag / AgCl electrodes (Kendall ®Coviden, self-adhesive electrodes) placed on skin according to the SENIAM protocol. To obtain T-reflex response, an electronic reflex hammer (Elcon 100-150 Germany) was used. After H-reflex and T reflex records at rest, to obtain Tonic vibration reflex, local vibration was applied to the Achilles tendon at 50, 85, 140, 185, 235 and 265 Hz. To obtain the reflex response induced by Whole body vibration, vibration was applied at 35, 37, 39, 41, 43 and 45 Hz. Tibial nerve stimulation was performed again to determine Hmax during whole body vibration and local vibration.H-reflex records was taken while the subject is sitting on a chair.

The data was recorded with the PowerLab data acquisition device (ADInstrument Oxford UK). For Whole-body vibration, PowerPlate Pro5 (London UK) was used.

Conditions

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Muscle Physiology

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Vibrator

Local or Whole body vibration was applied at six different frequencies to Healthy control and spastic spinal cord injury. For local vibration, vibration frequencies were 50, 85, 140, 185, 235 and 265 Hz . For whole body vibration, vibration frequencies were 35, 37, 39, 41, 43 and 45 Hz

Group Type EXPERIMENTAL

vibrator

Intervention Type DEVICE

Local or whole body vibration was applied at six different frequencies

Interventions

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vibrator

Local or whole body vibration was applied at six different frequencies

Intervention Type DEVICE

Other Intervention Names

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cyclic mechanical loading

Eligibility Criteria

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Inclusion Criteria

* Spastic spinal cord lesion
* Patients between the ages of 20 and 45

* Ages 20 and 45 old years
* Both sex
* Healthy volunteers

Exclusion Criteria

* Accompanying trauma

1. Lower extremity fracture
2. Lower extremity peripheral nerve lesions
3. Head trauma
* Autonomic dysreflexia
* Heterotopic ossification
* Lesions in calf skin
* Excessive spasticity (Ashwort4) / Contracture (knee, hip, footbath)
* Peripheral nerve-vascular diseases / muscle diseases
* Pressure ulcer (\> Grade 2)

* Pregnant women

Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes