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

Study Description

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

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

Study Design

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

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

Arms and Interventions

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

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

Outcome Measures

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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.

Eligibility Criteria

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

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

Criteria

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

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Contacts

Contact: Hsing-Kuo Wang, PhD	886-33668134	hkwang@ntu.edu.tw

Locations

Taiwan
National Taiwan University	Recruiting
Taipei, Taiwan, 100
Contact: HK Wang, PhD hkwang@ntu.edu.tw
Principal Investigator: HK Wang, PhD

Sponsors and Collaborators

National Taiwan University Hospital

Investigators

Study Chair:	Hsing-Kuo Wang, PhD	National Taiwan University Hospital

More Information

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Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information

Responsible Party:	Hsing-Kuo Wang/Associate Professor, Natioal Tiwan University Hospital
ClinicalTrials.gov Identifier:	NCT01281670 History of Changes
Other Study ID Numbers:	201009070R
First Posted:	January 24, 2011
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