NCT04347083

Brief Summary

The difference between latencies of the tonic vibration reflex or T-reflex and whole body vibration-induced muscular reflex may be related to the distance between their stimulation point and the muscle spindles. Achilles tendon is mechanically stimulated by using a local vibrator to elicit the tonic vibration reflex or a reflex hammer to elicit the T-reflex. Whole body vibration, however, stimulates the soleus muscle indirectly over the heel, not directly, since whole body vibration is administered in a position that the subjects are standing on the whole body vibration platform. In other words, while the local vibrator or the hammer stimulates the Achilles tendon, whole body vibration stimulates the sole of the foot. During whole body vibration, mechanical vibration stimuli need to go a long way to reach the soleus muscle spindle. Therefore, whole body vibration-induced muscular reflex latency may be longer than tonic vibration reflex or T-reflex latency. The aim this study is to define a method for determination of onset point of mechanical stimulation inducing muscle spindle-based reflex (e.g., tonic vibration reflex, T-reflex) by using intramuscular electromyography electrodes.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
13

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 12, 2020

Completed
1 day until next milestone

Study Start

First participant enrolled

April 13, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 15, 2020

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 20, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 20, 2021

Completed
Last Updated

September 2, 2021

Status Verified

August 1, 2021

Enrollment Period

1.4 years

First QC Date

April 12, 2020

Last Update Submit

August 30, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • muscle spindle- based reflex latency

    Duration between the onset point of mechanical stimulation and onset point of muscle spindle- based reflex latency response is defined as "muscle spindle- based reflex latency".

    1 day (a single point in time)

Study Arms (1)

Experiment

EXPERIMENTAL

Reflex latency will be measured in this arm

Diagnostic Test: Electrodiagnostic test

Interventions

Electrodiagnostic testDIAGNOSTIC_TEST

Muscle spindle- based reflex latency will be measured

Experiment

Eligibility Criteria

Age20 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Both gender
  • aged
  • Healthy volunteer

You may not qualify if:

  • People with any health problems

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Istanbul, 34192, Turkey (Türkiye)

Location

Related Publications (5)

  • Karacan I, Cidem M, Cidem M, Turker KS. Whole-body vibration induces distinct reflex patterns in human soleus muscle. J Electromyogr Kinesiol. 2017 Jun;34:93-101. doi: 10.1016/j.jelekin.2017.04.007. Epub 2017 Apr 24.

  • Yildirim MA, Topkara B, Aydin T, Paker N, Soy D, Coskun E, Ones K, Bardak A, Kesiktas N, Ozyurt MG, Celik B, Onder B, Kilic A, Kucuk HC, Karacan I, Turker KS. Exploring the receptor origin of vibration-induced reflexes. Spinal Cord. 2020 Jun;58(6):716-723. doi: 10.1038/s41393-020-0419-5. Epub 2020 Jan 15.

  • Aydin T, Kesiktas FN, Baskent A, Karan A, Karacan I, Turker KS. Cross-training effect of chronic whole-body vibration exercise: a randomized controlled study. Somatosens Mot Res. 2020 Jun;37(2):51-58. doi: 10.1080/08990220.2020.1720635. Epub 2020 Feb 5.

  • Cakar HI, Cidem M, Sebik O, Yilmaz G, Karamehmetoglu SS, Kara S, Karacan I, Turker KS. Whole-body vibration-induced muscular reflex: Is it a stretch-induced reflex? J Phys Ther Sci. 2015 Jul;27(7):2279-84. doi: 10.1589/jpts.27.2279. Epub 2015 Jul 22.

  • Karacan I, Cakar HI, Sebik O, Yilmaz G, Cidem M, Kara S, Turker KS. A new method to determine reflex latency induced by high rate stimulation of the nervous system. Front Hum Neurosci. 2014 Jul 18;8:536. doi: 10.3389/fnhum.2014.00536. eCollection 2014.

MeSH Terms

Conditions

Reflex, Abnormal

Condition Hierarchy (Ancestors)

Neurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Ilhan Karacan, Assoc Prof

    Istanbul Physical Medicine Rehabilitation Training & Research Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Researcher and Trainer

Study Record Dates

First Submitted

April 12, 2020

First Posted

April 15, 2020

Study Start

April 13, 2020

Primary Completion

August 20, 2021

Study Completion

August 20, 2021

Last Updated

September 2, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will not share

Locations