Cross-training Effect of Whole-body Vibration

NCT ID: NCT03750799

Last Updated: 2019-04-18

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 40 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2018-11-12
• Study Completion Date: 2019-02-01

Brief 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.

Detailed 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.

Conditions

Muscle Physiology

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: TRIPLE

Study Groups

Experimental group

Whole body vibration was applied on the right lower extremity.

Group Type: EXPERIMENTAL

Whole body vibration

Intervention Type: DEVICE

Whole body vibration was applied on the right lower extremity in the experimental group.

Sham group

Unlike the experimental group, sham vibration was applied to the control group.

Group Type: SHAM_COMPARATOR

Sham vibration

Intervention Type: DEVICE

Sham vibration was applied on the right lower extremity in the Control sham group

Interventions

Whole body vibration

Whole body vibration was applied on the right lower extremity in the experimental group.

Intervention Type: DEVICE

Sham vibration

Sham vibration was applied on the right lower extremity in the Control sham group

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Men with ages between 20-50 years
• Being healthy
• Being volunteer
• Right-sided dominant

Exclusion Criteria

• Non-cooperative subject

• Minimum Eligible Age: 20 Years
• Maximum Eligible Age: 50 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

OTHER_GOV

Sponsor Role: lead

Responsible Party

Ilhan KARACAN

Researcher, Assoc Prof

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Ilhan Karacan, Assoc Prof

Role: STUDY_CHAIR

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Locations

Istanbul Physical Medicine Rehabilitation Training and Research Hospital

Istanbul, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

References

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.

Reference Type: BACKGROUND

PMID: 28457998 (View on PubMed)

Karacan I, Cidem M, Yilmaz G, Sebik O, Cakar HI, Turker 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.

Reference Type: BACKGROUND

PMID: 27485766 (View on PubMed)

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.

Reference Type: BACKGROUND

PMID: 26310784 (View on PubMed)

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

Reference Type: BACKGROUND

PMID: 25551934 (View on PubMed)

Cidem M, Karacan I, Diracoglu D, Yildiz A, Kucuk SH, Uludag M, Gun 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.

Reference Type: BACKGROUND

PMID: 25207162 (View on PubMed)

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.

Reference Type: BACKGROUND

PMID: 25198227 (View on PubMed)

Other Identifiers

IstPMRTRH-BMR2

Identifier Type: -

Identifier Source: org_study_id