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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 recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified January 2011 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
Information provided by:
National Taiwan University Hospital Identifier:
First received: January 20, 2011
Last updated: NA
Last verified: January 2011
History: No changes posted
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 Intervention
Muscle Force, Explosive Strength and Vertical Jump Height Other: vibration

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Official Title: The Effects of Combining Whole Body Vibration Training With Plyometric Jumping on the Neuromuscular Adaptations of Human Triceps Surae Muscles

Further study details as provided by National Taiwan University Hospital:

Primary Outcome Measures:
  • 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.

Estimated Enrollment: 30
Study Start Date: January 2011
Estimated Study Completion Date: December 2011
Estimated Primary Completion Date: November 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: No vibration
Active Comparator: vibration Other: vibration
8 week vibration


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.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01281670

Contact: Hsing-Kuo Wang, PhD 886-33668134

National Taiwan University Recruiting
Taipei, Taiwan, 100
Contact: HK Wang, PhD   
Principal Investigator: HK Wang, PhD         
Sponsors and Collaborators
National Taiwan University Hospital
Study Chair: Hsing-Kuo Wang, PhD National Taiwan University Hospital
  More Information

Responsible Party: Hsing-Kuo Wang/Associate Professor, Natioal Tiwan University Hospital Identifier: NCT01281670     History of Changes
Other Study ID Numbers: 201009070R
Study First Received: January 20, 2011
Last Updated: January 20, 2011

Keywords provided by National Taiwan University Hospital:
H reflex; muscle activation; rate of force development; whole body vibration processed this record on June 23, 2017