Mechanomyogram Summary
Mechanomyogram (MMG) is one of the tools used to study the muscle mechanical activities. It is a signal generated from the mechanical vibration due to the muscle contraction. (Islam et al. 2013) The MMG signal can be detected from the body surface that overlying the muscle. This signal can be detected using displacement sensor (Kriz 2008), microphone (Yang, Kumar, and Arjunan 2009), accelerometer (Xie, Guo, and Zheng 2010), and piezoelectric (Tanaka 2011).
Table 1 shows the summary of bicep brachial muscle fatigue measurement using MMG signal. Kriz conducted an experiment to analyze short-term repeatability, including maximal displacement, delay time, contraction time, sustain time and half-relaxation time, from biceps brachial muscle using …show more content…
Herda et al conducted a study to examine the acute effects of stretching on MMG. An accelerometer was attached to bicep femoris muscle to collect the MMG signal. The subjects were undergone static and dynamic stretching during the experiment. It was found that RMS of MMG increased as the static stretching reached 101°. RMS increased at all joint for dynamic stretching (Herda, Cramer, and Stout 2008)
Torres et al performed a study on the relationship between MMG and muscle strength. The RMS and MPF of MMG were recorded by using biaxial accelerometer on the bicep brachial muscle of female and male subjects. Based on the result, the authors found that there is no statistical difference of result between male and female but there is a statistical difference between workload. The RMS of MMG is higher as workload increased. (Torres et al. 2005)
Ryan et al conducted an experiment to determine the inter-individual variability for the patterns of response for MMG against isometric torque on step muscle. The RMS and MPF of MMG, and torque were measured by using an accelerometer. A polynomial linear regression was preformed to determine the relationship between MMG and torque. Only 66% of lower strength group and 33% of higher strength group individual RMS pattern matched with composite pattern. (Ryan et al.
Table 1 shows the summary of bicep brachial muscle fatigue measurement using MMG signal. Kriz conducted an experiment to analyze short-term repeatability, including maximal displacement, delay time, contraction time, sustain time and half-relaxation time, from biceps brachial muscle using …show more content…
Herda et al conducted a study to examine the acute effects of stretching on MMG. An accelerometer was attached to bicep femoris muscle to collect the MMG signal. The subjects were undergone static and dynamic stretching during the experiment. It was found that RMS of MMG increased as the static stretching reached 101°. RMS increased at all joint for dynamic stretching (Herda, Cramer, and Stout 2008)
Torres et al performed a study on the relationship between MMG and muscle strength. The RMS and MPF of MMG were recorded by using biaxial accelerometer on the bicep brachial muscle of female and male subjects. Based on the result, the authors found that there is no statistical difference of result between male and female but there is a statistical difference between workload. The RMS of MMG is higher as workload increased. (Torres et al. 2005)
Ryan et al conducted an experiment to determine the inter-individual variability for the patterns of response for MMG against isometric torque on step muscle. The RMS and MPF of MMG, and torque were measured by using an accelerometer. A polynomial linear regression was preformed to determine the relationship between MMG and torque. Only 66% of lower strength group and 33% of higher strength group individual RMS pattern matched with composite pattern. (Ryan et al.