Acute effect of tendon vibration applied during isometric contraction at two knee angles on maximal knee extension force production

The aim of the current study was to investigate the effect of a single session of prolonged tendon vibration combined with low submaximal isometric contraction on maximal motor performance. Thirty-two young sedentary adults were assigned into two groups that differed based on the knee angle tested:...

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Bibliographic Details
Published in:PloS one 2020-11, Vol.15 (11), p.e0242324
Main Authors: Harnie, Jonathan, Cattagni, Thomas, Cornu, Christophe, McNair, Peter, Jubeau, Marc
Format: Article
Language:English
Subjects:
Amplitudes
Biology and Life Sciences
Biomechanical Phenomena
Electromyography
Exercise
Fatigue
Female
Force
Human health and pathology
Humans
Interpolation
Isometric Contraction
Isometric exercise
Knee
Knee - physiology
Knee muscles
Life Sciences
Male
Mechanical Phenomena
Medicine and Health Sciences
Motor task performance
Muscle contraction
Muscle Fatigue
Muscles
Muscular fatigue
Physical fitness
Physical Sciences
Physiological aspects
Physiological research
Reduction
Tendon
Tendons - physiology
Tissues and Organs
Vibration
Vibration (Physics)
Young Adult
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Summary:The aim of the current study was to investigate the effect of a single session of prolonged tendon vibration combined with low submaximal isometric contraction on maximal motor performance. Thirty-two young sedentary adults were assigned into two groups that differed based on the knee angle tested: 90° or 150° (180° = full knee extension). Participants performed two fatigue-inducing exercise protocols: one with three 10 min submaximal (10% of maximal voluntary contraction) knee extensor contractions and patellar tendon vibration (80 Hz) another with submaximal knee extensor contractions only. Before and after each fatigue protocol, maximal voluntary isometric contractions (MVC), voluntary activation level (assessed by the twitch interpolation technique), peak-to-peak amplitude of maximum compound action potentials of vastus medialis and vastus lateralis (assessed by electromyography with the use of electrical nerve stimulation), peak twitch amplitude and peak doublet force were measured. The knee extensor fatigue was significantly (P
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0242324