TY - GEN
T1 - Study on evaluation of muscle conditions using a mechanomyogram sensor
AU - Tanaka, Mami
AU - Okuyama, Takeshi
AU - Saito, Kazuhiro
PY - 2011
Y1 - 2011
N2 - In this study, a mechanomyogram (MMG) sensor system for monitoring muscle conditions is developed. The polyvinylidene fluoride (PVDF) film is used as the sensory material of the MMG sensor. The mean power frequency (MPF) of the sensor output, which is related to firing rate of action potential of muscle, and the variance of the sensor output, which is related to the activity of fast fibers and complete recruitment, are calculated from the MMG signal. The fundamental experiments were conducted. First, MMG signal are measured for muscular injury of upper arm. From the results, MMG sensor is available to estimate the recovery of muscle. Next, muscle activities of isometric contraction are studied using the developed MMG sensor before and after muscle fatigue. Experimental results show that contraction of fast fibers is occurred earlier and fast fibers activity increase earlier due to muscle fatigue. Focusing on the time shift of local maximum point in MPF and decrease of growth rate in variance, parameters for evaluation of muscle fatigue degree are proposed.
AB - In this study, a mechanomyogram (MMG) sensor system for monitoring muscle conditions is developed. The polyvinylidene fluoride (PVDF) film is used as the sensory material of the MMG sensor. The mean power frequency (MPF) of the sensor output, which is related to firing rate of action potential of muscle, and the variance of the sensor output, which is related to the activity of fast fibers and complete recruitment, are calculated from the MMG signal. The fundamental experiments were conducted. First, MMG signal are measured for muscular injury of upper arm. From the results, MMG sensor is available to estimate the recovery of muscle. Next, muscle activities of isometric contraction are studied using the developed MMG sensor before and after muscle fatigue. Experimental results show that contraction of fast fibers is occurred earlier and fast fibers activity increase earlier due to muscle fatigue. Focusing on the time shift of local maximum point in MPF and decrease of growth rate in variance, parameters for evaluation of muscle fatigue degree are proposed.
KW - measurement
KW - mechanomyogram
KW - muscle
KW - muscle fatigue
KW - muscle injury
UR - http://www.scopus.com/inward/record.url?scp=83755184222&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=83755184222&partnerID=8YFLogxK
U2 - 10.1109/ICSMC.2011.6083730
DO - 10.1109/ICSMC.2011.6083730
M3 - Conference contribution
AN - SCOPUS:83755184222
SN - 9781457706523
T3 - Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
SP - 741
EP - 745
BT - 2011 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2011 - Conference Digest
T2 - 2011 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2011
Y2 - 9 October 2011 through 12 October 2011
ER -