Cross-training Effect of Whole-body Vibration

Muscle Physiology Clinical Trial

— CTEWBW  

Official title:

Cross-training Effect of Whole-body Vibration

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03750799
• Other study ID #: IstPMRTRH-BMR2
• Status: Completed
• Phase: N/A
• Start date: November 12, 2018
• Est. completion date: February 1, 2019

Study information

• Verified date: April 2019
• Source: Istanbul Physical Medicine Rehabilitation Training and Research Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study evaluates whether an increase in the ipsilateral knee flexor muscle strength transfers to the contralateral knee extensors which are not exposed to vibration, when unilateral-isolated whole body vibration (WBV) is applied to the lower extremity. In the half of volunteers the right leg were exposed vibration, while in the other half the right leg were exposed sham vibration. Muscle strength were measured with the Cybex® (Massachusetts, USA) extremity-testing system.

Description:

This study was included 40 healthy volunteers. The change in the quadriceps muscle strength after 20 session of WBV exercises was evaluated this study. In the WBV group, 20 sessions of unilateral lower extremity vibration exercises were performed with the Whole Body Vibration (WBV) device. WBV was applied when the subjects are in the semi-squat position. WBV was implemented with Powerplate® Pro5 (PowerPlate® International Ltd, London, United Kingdom). During 20 sessions, the WBV amplitude and vibration time were increased gradually. In the first session, the subjects were do a 30-second, 30-35, 40- and 45-Hz low-amplitude WBV while the knee and hip joint were in 30 degrees of flexion (in the semi-squat position); 10-second rest period between vibration applications were applied. A total duration of WBV was be two minutes. In the 20th session, the subjects were given a 60-second, 30-, 35-, 40- and 45-Hz high-amplitude WBV while the knee and hip joint were in 45 degrees of flexion; 10-second rest period between vibration applications were applied. A total duration of WBV was eight minutes. During WBV, the left lower extremity was in the knee-hip flexion position but was not exposed the vibration.

The same experimental protocol was applied to the isometric exercise (control) group. Unlike the experimental group, sham vibration was applied to the control group. Before and after 20 session-exercise, both knee extensor isokinetic muscle strength was measured.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: February 1, 2019
• Est. primary completion date: January 1, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 20 Years to 50 Years

Eligibility

Inclusion Criteria:

• Men with ages between 20-50 years

• Being healthy

• Being volunteer

• Right-sided dominant

Exclusion Criteria:

• Non-cooperative subject

Related Conditions & MeSH terms

• Muscle Physiology

Intervention

Device:
• Whole body vibration
Whole body vibration was applied on the right lower extremity in the experimental group.
• Sham vibration
Sham vibration was applied on the right lower extremity in the Control sham group

Locations

Country	Name	City	State
Turkey	Istanbul Physical Medicine Rehabilitation Training and Research Hospital	Istanbul

Sponsors (1)

Lead Sponsor	Collaborator
Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Country where clinical trial is conducted

Turkey, 

References & Publications (6)

Cakar HI, Cidem M, Kara S, Karacan I. Vibration paradox and H-reflex suppression: is H-reflex suppression results from distorting effect of vibration? J Musculoskelet Neuronal Interact. 2014 Sep;14(3):318-24. — View Citation

Cakar HI, Cidem M, Sebik O, Yilmaz G, Karamehmetoglu SS, Kara S, Karacan I, Türker 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. — View Citation

Cidem M, Karacan I, Diraçoglu D, Yildiz A, Küçük SH, Uludag M, Gün K, Ozkaya M, Karamehmetoglu SS. A Randomized Trial on the Effect of Bone Tissue on Vibration-induced Muscle Strength Gain and Vibration-induced Reflex Muscle Activity. Balkan Med J. 2014 Mar;31(1):11-22. doi: 10.5152/balkanmedj.2013.9482. Epub 2014 Mar 1. — View Citation

Karacan I, Cidem M, Cidem M, Türker 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. — View Citation

Karacan I, Cidem M, Yilmaz G, Sebik O, Cakar HI, Türker KS. Tendon reflex is suppressed during whole-body vibration. J Electromyogr Kinesiol. 2016 Oct;30:191-5. doi: 10.1016/j.jelekin.2016.07.008. Epub 2016 Jul 25. — View Citation

Karamehmetoglu SS, Karacan I, Cidem M, Küçük SH, Ekmekçi H, Bahadir C. Effects of osteocytes on vibration-induced reflex muscle activity in postmenopausal women. Turk J Med Sci. 2014;44(4):630-8. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Muscle strength gain of the untrained contralateral quadriceps muscle	Untrained contralateral quadriceps muscle strength was measured with the Cybex extremity-testing system before and after trial. Unit of this parameter was Nm	four months