title: The Effect of Mechanical Vibration Stimulation of Perception Subthreshold on the Muscle Force and Muscle Reaction Time of Lower Leg.
abstract: The objective of this study is to investigate the effect of mechanical vibration stimulation on the muscle force and muscle reaction time of lower leg according to perception threshold and vibration frequency. A vibration stimulation with perception threshold intensity was applied on the Achilles tendon and tibialis anterior tendon. EMG measurement and analysis system were used to analyze the change of muscle force and muscle reaction time according to perception threshold and vibration frequency. A root-mean-square (RMS) value was extracted using analysis software and Maximum Voluntary Contraction (MVC) and Premotor Time (PMT) were analyzed. The measurement results showed that perception threshold was different from application sites of vibration frequency. Also, the muscle force and muscle reaction time showed difference according to the presence of vibration, frequency, and intensity. This result means that the vibration stimulation causes the change on the muscle force and muscle reaction time and affects the muscles of lower leg by the characteristics of vibration stimulation.
authors.affiliation: Department of Healthcare Engineering, Graduate School, Chonbuk National University, Jeonju 54896, Republic of Korea.
authors.forename: Huigyun
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Healthcare Engineering, Graduate School, Chonbuk National University, Jeonju 54896, Republic of Korea.
authors.forename: Kiyoung
authors.initials: K
authors.lastname: Kwak
authors.affiliation: Department of Biomedical Engineering, College of Engineering, Chonbuk National University, Jeonju 54896, Republic of Korea; Research Center of Healthcare and Welfare Instrument for the Aged, Chonbuk National University, Jeonju 54896, Republic of Korea.
authors.forename: Dongwook
authors.initials: D
authors.lastname: Kim