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Vibromyography

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https://www.readbyqxmd.com/read/26279271/the-effect-of-kinesiotape-on-dynamic-balance-following-muscle-fatigue-in-individuals-with-chronic-ankle-instability
#1
Einat Kodesh, Gali Dar
This study aimed to evaluate the effect of kinesiotape (KT) on dynamic stability following ankle muscle fatigue among individuals with chronic ankle instability (CAI). Twenty participants with CAI participated in the study. Participants were tested under three conditions: KT, non-elastic tape, and no tape pre- and post-fatigue of the ankle muscles. Ankle muscles fatigue was induced using an isokinetic apparatus, activity of the fibularis muscle was recorded using one-channel vibromyography (VMG), and dynamic balance and neuromuscular control were assessed using the Y-Balance Test...
2015: Research in Sports Medicine
https://www.readbyqxmd.com/read/25094377/vibromyographic-quantification-of-voluntary-isometric-contractile-force-in-the-brachioradialis
#2
J P Cole, G Madhavan, K J McLeod
This study investigated the ability of vibromyography (VMG) to accurately represent voluntary forearm muscle contractile force during attempted-isometric contraction of the brachioradialis. VMG signals were collected from the brachioradialis of healthy adult men (mean age, 26.6plusmn9.8 years, N=24) during attempted-isometric contraction over a force range of 4.45 N to maximum sustained load. The VMG signals were decomposed using wavelet packet analysis techniques, and the corresponding wavelet packets were utilized in a multiple regression model for parameter reduction and identification of signal components which best correlated to muscle force...
August 2006: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/18727932/vibromyography-of-oral-processing-varies-with-type-of-semi-solid-food-and-with-sensory-judgements
#3
René A de Wijk, Ilse A Polet, Johannes H F Bult, Jon F Prinz
Vibromyography was used to quantify oral activity during the processing of well-characterized semi-solid model foods whilst subjects assessed the intensity of the sensory attributes to thick, creamy, melting, fatty, rough and liking. A series of eleven starch-based vanilla custard desserts was prepared with five different viscosities, three different fat levels, and three different particle sizes. Over 5 sessions, subjects (N=10) took 5 ml spoonfuls of each of the stimuli for 5 s before they rated the strength of the various attributes...
October 20, 2008: Physiology & Behavior
https://www.readbyqxmd.com/read/17946062/vibromyographic-quantification-of-voluntary-isometric-contractile-force-in-the-brachioradialis
#4
Jason P Cole, Guruprasad Madhavan, Kenneth J McLeod
This study investigated the ability of vibromyography (VMG) to accurately represent voluntary forearm muscle contractile force during attempted-isometric contraction of the brachioradialis. VMG signals were collected from the brachioradialis of healthy adult men (mean age, 26.6+/-9.8 years, N=24) during attempted-isometric contraction over a force range of 4.45 N to maximum sustained load. The VMG signals were decomposed using wavelet packet analysis techniques, and the corresponding wavelet packets were utilized in a multiple regression model for parameter reduction and identification of signal components which best correlated to muscle force...
2006: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/17281821/time-frequency-analysis-of-endogenous-calf-skeletal-muscle-vibromyograms
#5
Ayana Goddard, Guruprasad Madhavan, Jason Cole, Mark Fowler, Kenneth McLeod
Calf skeletal muscle pump activity is essential for maintaining adequate venous and interstitial fluid flows in the dependent body. Correspondingly, failure of this extracorporeal pump leads to a host of acute and chronic physiological complications. The focus of this study is to assess the calf muscle pump contractility, more specifically through analysis of soleus muscle firing dynamics, in supine and seated positions, utilizing vibromyography (VMG). We have extended our previous investigations which relied on Fourier analysis of VMG recordings by utilizing wavelet-based time-frequency analysis to characterize the intrinsically non-stationary peripheral postural muscle dynamics during quiet sitting...
2005: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/11846180/the-effects-of-timing-and-application-of-vibration-on-muscular-contractions
#6
G Warman, B Humphries, J Purton
BACKGROUND: The effect of vibration stimulation on muscular strength is an emerging field of research and very little comprehensive work has been conducted at this stage. HYPOTHESIS: There will be no effects of timing or application of vibration stimulation on muscular strength and activation across isometric, isokinetic and concentric isotonic contractions. METHODS: There were 28 recreational athletes who participated in this study. Their characteristics were: (mean +/- SD) age, 22...
February 2002: Aviation, Space, and Environmental Medicine
https://www.readbyqxmd.com/read/9084103/vibromyography-as-a-quantitative-measure-of-muscle-force-production
#7
G O Matheson, L Maffey-Ward, M Mooney, K Ladly, T Fung, Y T Zhang
This study was undertaken to investigate the use of vibromyography (VMG) as a tool for quantifying skeletal muscle force production. Fourteen healthy volunteers were pretested using a Cybex isokinetic dynamometer to determine their isometric quadricep maximum voluntary contraction (MVC) values. On the basis of these results, the subjects were separated into two groups: high-force ("HF" MVC mean = 289 ft.lb., range 254-330) and low-force ("LF" MVC mean = 154 ft.lb., range 101-198). A vibromyographic piezoelectric accelerometer (Dytran 3115A) and electromyographic (EMG) surface electrodes were affixed to the rectus femoris muscle and recordings were obtained at 20, 40, 60, 80, and 100% MVC...
March 1997: Scandinavian Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/7935522/assessment-of-muscular-fatigue-using-vibromyography
#8
W Herzog, Y T Zhang, M A Vaz, A C Guimaraes, C Janssen
The purpose of this study was to investigate the behavior of electromyographical (EMG) and vibromyographical (VMG) signals in the time and frequency domains during a fatigue protocol. EMG and VMG records were obtained from the rectus femoris (RF) and vastus lateralis (VL) muscles of 11 adult male subjects during sustained, isometric knee extensor contractions performed at 70% of maximal voluntary contraction (MVC). The average median frequencies of the power density spectra decreased during the fatigue protocol for the EMG (from 73 to 54 Hz for RF, and from 75 to 57 Hz for VL) and the VMG signals (from 40 to 19 Hz for RF, and from 25 to 12 Hz for VL)...
October 1994: Muscle & Nerve
https://www.readbyqxmd.com/read/2736270/the-computer-vibromyography-as-a-biometric-progress-in-studying-muscle-function
#9
M Keidel, W D Keidel
Muscular vibrations were recorded from different relaxed and contracted skeletal muscles in human subjects, with the use of a piezo-electric device. Simultaneous wire-EMG recordings were performed. Spectral analysis of the acceleration curves (vibromyograms) disclosed muscle and function dependent compound frequency patterns. We suggest that the activity of motor units including the action of central reflex loops and oscillatory driving is mainly responsible for the muscular vibrations. Other sources are discussed...
May 1989: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/1452170/a-comparative-study-of-simultaneous-vibromyography-and-electromyography-with-active-human-quadriceps
#10
COMPARATIVE STUDY
Y T Zhang, C B Frank, R M Rangayyan, G D Bell
Vibromyographic (VMG) signals, which are low-frequency vibration signals generated during muscle contraction, were studied in comparison with electromyographic (EMG) signals recorded simultaneously during isometric contraction of the human quadriceps muscles. The comparison was accomplished by evaluating the averaged root mean squared (rms) value, mean frequency (MF), and peak frequency (PF) of the VMG and EMG signals for four muscle contraction levels at joint angles of 30 degrees, 60 degrees, and 90 degrees...
October 1992: IEEE Transactions on Bio-medical Engineering
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