Volume 54, Issue 3 pp. 469-478
Research Article

Immediate effect of vibratory stimuli on quadriceps function in healthy adults

Derek N. Pamukoff PhD

Corresponding Author

Derek N. Pamukoff PhD

Department of Kinesiology, California State University, Fullerton, 800 North State College Boulevard, Fullerton, California, 92831 USA

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

Correspondence to: D. Pamukoff; e-mail: [email protected]Search for more papers by this author
Brian Pietrosimone PhD, ATC

Brian Pietrosimone PhD, ATC

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

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Michael D. Lewek PT, PhD

Michael D. Lewek PT, PhD

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina, Chapel Hill, North Carolina, USA

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Eric D. Ryan PhD

Eric D. Ryan PhD

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

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Paul S. Weinhold PhD

Paul S. Weinhold PhD

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

Department of Orthopedics, California State University, Fullerton, Fullerton, California, USA

Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, North Carolina, USA

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Dustin R. Lee BA

Dustin R. Lee BA

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

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J. Troy Blackburn PhD, ATC

J. Troy Blackburn PhD, ATC

Department of Exercise and Sport Science, California State University, Fullerton, Fullerton, California, USA

Curriculum in Human Movement Science, California State University, Fullerton, Fullerton, California, USA

Department of Orthopedics, California State University, Fullerton, Fullerton, California, USA

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First published: 13 February 2016
Citations: 26

This study was supported by a doctoral research grant (FRG-51) from the American College of Sports Medicine Foundation and by a grant-in-aid from the American Society of Biomechanics.

ABSTRACT

Introduction: The purpose of this study was to compare the effect of whole body vibration (WBV) and local muscle vibration (LMV) on quadriceps function. Methods: Sixty adults were randomized to WBV, LMV, or control groups. Quadriceps function [Hoffmann (H)-reflex, active motor threshold (AMT), motor evoked potential (MEP) and electromyographic amplitude, peak torque (PT), rate of torque development (RTD), and central activation ratio (CAR)] was assessed before and immediately after and 10 and 20 minutes after interventions. Results: WBV improved PT, CAR, AMT, EMG, and MEP amplitude, and EMG amplitude and CAR were greater than control after application. LMV improved EMG amplitude and AMT, and EMG amplitude was greater than control after application. AMT remained lower 10 and 20 minutes after WBV and LMV. No differences were noted between LMV and WBV. Vibration did not influence H-reflex or RTD. Conclusions: WBV and LMV increased quadriceps function and may be used to enhance the efficacy of strengthening protocols. Muscle Nerve 54: 469–478, 2016

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