In vivo behaviour of human muscle architecture and mechanomyographic response using the interpolated twitch technique

Ohta, Yoichi; Shima, Norihiro; Yabe, Kyonosuke

doi:10.1016/j.jelekin.2008.01.004

Cited by 14 publications

(12 citation statements)

References 45 publications

(72 reference statements)

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“…With these characteristics, MMG permitted to study the adaptations of neuromuscular activation strategies induced by several conditions, such as climbing [49] or resistance and aerobic training [55]. Also different physiological models, such as potentiation [56], muscle pain [57], hypoxia [58], hypothermia [59], muscle relaxation [60,61], while overimposing an electrical twitch stimulation during maximum voluntary contraction [62], or during spinal anaesthesia [63] could be also investigated.…”

Section: Mmg During Isometric Contraction ''In Vivo''mentioning

confidence: 99%

Novel insights into skeletal muscle function by mechanomyography: from the laboratory to the field

2015

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Purpose The review aimed to provide a wider overview on the new application fields of MMG signal. A particular emphasis on measurements reliability and sensitivity was also given. Methods Five electronic databases were searched for eligible studies published between 2000 and 2014. Two authors assessed selected articles. Several domains (sensor types, participants' characteristics, experimental protocols, investigated muscle/s, measured parameters, and main results) were extracted for analysis. From a total of 1326 citations, 170 were selected for evaluation and 111 studies were identified. Results From the analysis of the literature it resulted that MMG signal (a) has a high level of reliability, especially for the parameters calculated during isometric contractions; (b) can be used to examine muscle mechanical activation and motor unit recruitment strategies under several types of exercise paradigms; (c) is influenced by the mechanical characteristics of cross-bridges and series elastic components, and may provide deeper insights into their behaviour under several physiological models; (d) could be a useful biomarker for triggering orthosis or multifunction access devices, and for the evaluation of patients presenting alterations in muscle function. Conclusions The MMG approach has been proficiently applied in several fields ascribable to both exercise physiology and clinical settings. This approach can provide deeper insights into muscle mechanical behaviour under several physiological models and for the evaluation of patients with altered muscle function.

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Section: Mmg During Isometric Contraction ''In Vivo''mentioning

confidence: 99%

Novel insights into skeletal muscle function by mechanomyography: from the laboratory to the field

2015

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“…3d and 4d). Previous studies have suggested that the evoked acceleration signal reflects dimensional changes in the contracting muscle (Orizio, 1993) and/or fascicle length shortening (Ohta et al, 2009). Therefore, an increase in acceleration amplitude after stimulation with a two-pulse train with a 10 ms inter-pulse interval reflects an increase in amount of dimensional changes and/or an increase in fascicle length shortening due to summation of contraction.…”

Section: Evoked Acceleration Signals and Summation Of Contractionmentioning

confidence: 94%

The effect of summation of contraction on acceleration signals in human skeletal muscle

Ohta

Shima

Yabe

2010

Journal of Electromyography and Kinesiology

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“…Although investigating medial gastrocnemius muscle performance at different levels of MVC, Ohta et al (2009) showed that MMG amplitude presents a linear decrease at levels up to 80% of the MVC.…”

Section: Correlation To Force Responsementioning

confidence: 99%

Advances and perspectives of mechanomyography

Krueger

Scheeren

Nogueira-Neto

et al. 2014

Rev. Bras. Eng. Bioméd.

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Introduction: The evaluation of muscular tissue condition can be accomplished with mechanomyography (MMG), a technique that registers intramuscular mechanical waves produced during a fi ber's contraction and stretching that are sensed or interfaced on the skin surface. Objective: Considering the scope of MMG measurements and recent advances involving the technique, the goal of this paper is to discuss mechanomyography updates and discuss its applications and potential future applications. Methods: Forty-three MMG studies were published between the years of 1987 and 2013. Results: MMG sensors are developed with different technologies such as condenser microphones, accelerometers, laser-based instruments, etc. Experimental protocols that are described in scientifi c publications typically investigated the condition of the vastus lateralis muscle and used sensors built with accelerometers, third and fourth order Butterworth fi lters, 5-100Hz frequency bandpass, signal analysis using Root Mean Square (RMS) (temporal), Median Frequency (MDF) and Mean Power Frequency (MPF) (spectral) features, with epochs of 1 s. Conclusion: Mechanomyographic responses obtained in isometric contractions differ from those observed during dynamic contractions in both passive and functional electrical stimulation evoked movements. In the near future, MMG features applied to biofeedback closed-loop systems will help people with disabilities, such as spinal cord injury or limb amputation because they may improve both neural and myoelectric prosthetic control. Muscular tissue assessment is a new application area enabled by MMG; it can be useful in evaluating the muscular tonus in anesthetic blockade or in pathologies such as myotonic dystrophy, chronic obstructive pulmonary disease, and disorders including dysphagia, myalgia and spastic hypertonia. New research becomes necessary to improve the effi ciency of MMG systems and increase their application in rehabilitation, clinical and other health areas.

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In vivo behaviour of human muscle architecture and mechanomyographic response using the interpolated twitch technique

Cited by 14 publications

References 45 publications

Novel insights into skeletal muscle function by mechanomyography: from the laboratory to the field

Novel insights into skeletal muscle function by mechanomyography: from the laboratory to the field

The effect of summation of contraction on acceleration signals in human skeletal muscle

Advances and perspectives of mechanomyography

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