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The Effects of Combining Whole Body Vibration Training With Plyometric Jumping on the Neuromuscular Adaptations of Human Triceps Surae Muscles

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01281670
Recruitment Status : Unknown
Verified January 2011 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
First Posted : January 24, 2011
Last Update Posted : January 24, 2011
Information provided by:
National Taiwan University Hospital

Brief Summary:
Muscle force, explosive strength and vertical jump height are important parameters determining the performance of athletes. Traditionally, high intensity resistance training, explosive strength training and plyometric training are used to improve athletes' performance. Recently, whole body vibration training is recommended for increasing muscle force and explosive strength, because vibrating platform could provide high gravitational acceleration to activate muscle activation and sensory input to spinal reflex. Design: Prospective and randomized control study. Subjects: Healthy male subjects with regular training or competition at least 6 hours per week. Methods: H-reflex, V-wave, triceps surae activation level and rate of force development are measured at pre-training, mid-training (5th week) and post-training. Subjects will receive 8 weeks, 3 times/week, training programs including plyometric jumping or static squat on whole body vibration platform. Data analysis: Data will be analyzed using SPSS 13.0 software (SPSS Inc., Chicago, IL) and two-way ANOVA will be used for data analysis.

Condition or disease Intervention/treatment Phase
Muscle Force, Explosive Strength and Vertical Jump Height Other: vibration Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Official Title: The Effects of Combining Whole Body Vibration Training With Plyometric Jumping on the Neuromuscular Adaptations of Human Triceps Surae Muscles
Study Start Date : January 2011
Estimated Primary Completion Date : November 2011
Estimated Study Completion Date : December 2011

Arm Intervention/treatment
No Intervention: No vibration
Active Comparator: vibration Other: vibration
8 week vibration

Primary Outcome Measures :
  1. evoked spinal reflex [ Time Frame: 8 weeks ]
    In terms of evoked spinal reflexes, modulations of spinal inhibitory inter-neuronal circuits are often assessed by the Ia-afferent-mediated H-reflex. Results of H reflexes in studies with training are tightly coupled with excitability changes of small alpha motor neurons. The first volitional (V) wave, an electrophysiological variant of the H-reflex, is used to indicate the net excitation of the motorneurone pool.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 30 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • subjects who had not been engaged in systematic strength training and had no history of knee, leg, or ankle pain that caused a subject to seek medical help during the year prior to the recruitment.

Exclusion Criteria:

  • Subjects who missed more than one training session or participated in any other type of fitness training were excluded.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01281670

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Contact: Hsing-Kuo Wang, PhD 886-33668134

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National Taiwan University Recruiting
Taipei, Taiwan, 100
Contact: HK Wang, PhD   
Principal Investigator: HK Wang, PhD         
Sponsors and Collaborators
National Taiwan University Hospital
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Study Chair: Hsing-Kuo Wang, PhD National Taiwan University Hospital
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Responsible Party: Hsing-Kuo Wang/Associate Professor, Natioal Tiwan University Hospital Identifier: NCT01281670    
Other Study ID Numbers: 201009070R
First Posted: January 24, 2011    Key Record Dates
Last Update Posted: January 24, 2011
Last Verified: January 2011
Keywords provided by National Taiwan University Hospital:
H reflex; muscle activation; rate of force development; whole body vibration