EMG and MMG activities of agonist and antagonist muscles in Parkinson’s disease patients during absolute submaximal load holding

Marusiak, Jarosław; Jaskólska, Anna; Kisiel-Sajewicz, Katarzyna; Yue, Guang H.; Jaskólski, Artur

doi:10.1016/j.jelekin.2008.03.003

Cited by 41 publications

(44 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These events are widely reported in the literature, especially in studies with EMG (Barkhaus and Nandedkar, 1994;Marusiak et al, 2009). However, subcutaneous fat may also affect procedures conducted using MMG, although the origins of each signal are of different natures (EMG electrical signal and MMG mechanical signal) .…”

Section: Discussionmentioning

confidence: 97%

“…MMG is used in many applications, including: prostheses control (Orizio et al, 2003); indication of muscle activation degree (Scheeren et al, 2010); monitoring of muscle fatigue (Orizio et al, 2003;Tarata, 2003); neuromuscular diseases diagnosis (Hu et al, 2007); obtainment of signals for the study of muscle strength gradation mechanisms (Akataki et al, 2001;Matta et al, 2005;Madeleine et al, 2001;Nogueira-Neto et al, 2013); evaluation of respiratory muscle work (Sarlabous et al, 2014); changes in MU activation strategies, which can occur with aging, neuromuscular diseases, endurance training programs, and care of injuries (Cooper et al, 2014); and Parkinson's disease (Marusiak et al, 2009;Malek and Coburn, 2012). In applications with comparisons between the MMG signal and the force response the biceps brachii (Orizio et al, 1989) and rectus femoris (Krueger et al, 2016;Shin et al, 2016) are the muscles more used due its easy accessibility and comparison capability.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of subcutaneous fat on mechanomyographic signals at three levels of voluntary effort

et al. 2017

View full text Add to dashboard Cite

Introduction: This study aims to assess the influence of different skinfold thicknesses (ST) and their relation to the attenuation of the mechanomyographic (MMG) signal at different force levels (maximal voluntary contraction -MVC, 40% of MVC and 70% of MVC) of the rectus femoris muscle. Methods: Fifteen volunteers were divided in two groups: ST lower than 10mm (G<10) (8 participants) and ST higher than 35mm (G>35) (7 participants). Student t tests were employed to investigate differences between G<10 and G>35 regarding MMG analysis parameters (acceleration root mean square -aRMS, zero crossing -ZC, and median frequency -MDF), for the X, Y and Z axes, as well as for the modulus of these three axes.

show abstract

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Influence of subcutaneous fat on mechanomyographic signals at three levels of voluntary effort

et al. 2017

View full text Add to dashboard Cite

show abstract

“…However, a study by Wierzbicka et al 30 and our previous findings 20,21 show that, in some patients tested during their medication "ON" phase, pathological changes might occur as well. Another useful method for assessing skeletal muscle activity is mechanomyography (MMG).…”

mentioning

confidence: 66%

“…14,23 Many investigators have studied the diagnostic role of MMG, 2,12,13,16,24 -26 but we are the only group to have reported its use in evaluating the neuromuscular system in Parkinson disease. 20,21 We found a greater amplitude and a lower median frequency of the MMG signal in medicated PD patients (tested during their medication "ON" phase) compared with healthy subjects during sustained submaximal isometric contraction of the elbow flexors. These results were most probably related to the Parkinson action tremor that occurred during the task.…”

mentioning

confidence: 79%

“…Simultaneous recording of EMG and MMG signals is a good method for monitoring the relationship between the electrical and mechanical properties of skeletal muscle and seems to be useful in general medicine, sports medicine, and neuroscience research. 1,20,22 It allows exploration of how commands from the central nervous system are delivered to the muscles and how muscles are activated and coactivated to accomplish specific movements.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Electromyography and mechanomyography of elbow agonists and antagonists in Parkinson disease

et al. 2009

Self Cite

View full text Add to dashboard Cite

The purpose of this study was to assess the electromyographic (EMG) and mechanomyographic (MMG) activities of agonist and antagonist muscles in Parkinson disease patients during maximal isometric elbow contraction in flexion and extension. Ten elderly females with Parkinson disease (average age 75 years) and 10 age-matched healthy females were tested. The torque and the EMG and MMG signals from biceps brachii and triceps brachii were recorded during sustained maximal voluntary isometric contraction of the elbow flexors and extensors. There were no intergroup differences in the EMG and MMG activities of agonist and antagonist muscles or in torque. This might be because the Parkinson subjects were tested during their medication "ON" phase, or perhaps maximal isometric contraction (MVC) induced greater active muscle stiffness that affected the MMG signal. Muscle Nerve 40: 240-248, 2009.

show abstract

Chy‐3 mice are Vegfc haploinsufficient and exhibit defective dermal superficial to deep lymphatic transition and dermal lymphatic hypoplasia

Dellinger

Hunter

Bernas

et al. 2007

Developmental Dynamics

View full text Add to dashboard Cite

Recent advances in molecular lymphology and lymphatic phenotyping techniques in small animals offer new opportunities to delineate mutant mouse models. Chy-3 mutant mice were originally named for their chylous ascites, but the underlying lymphatic disorder was not defined. We now re-examined these mice and applied advanced genotyping and lymphatic phenotyping techniques to pinpoint the specific lymphatic defect in this mouse model. We demonstrated that Chy-3 mice carry a large chromosomal deletion that includes Vegfc and narrowed this region by monitoring the heterozygosity of genetic markers. We found that Chy-3 mice not only exhibited chylous ascites but also lymphedema of the hind paws and, in approximately half of the males, lymphedema of the penis. Visual lymphangiography and immunofluorescence staining showed a hypoplastic dermal lymphatic network, whereas the blood vasculature appeared unaffected. This hypoplastic lymphatic network was functional, and all adult Chy-3 mice exhibited a lateral lymphatic pathway directly connecting the inguinal to the axillary lymph node. The dermal superficial to deep lymphatic connections in upper limbs and in all cervical regions were intact and functionally drained the upper body. Lymphatic tracer was not transported from the dermal to the deep truncal lymphatic system in the lower limbs, even though the deep lymphatic vessels and nodes were present and patent. These findings further delineate the lymphatic phenotype of Chy-3 mice, identify a collateral lymph drainage pathway previously undescribed in other genetic models of lymphedema, and demonstrate a predilection for lymphatic abnormalities of the lower limbs.

show abstract

EMG and MMG activities of agonist and antagonist muscles in Parkinson’s disease patients during absolute submaximal load holding

Cited by 41 publications

References 33 publications

Influence of subcutaneous fat on mechanomyographic signals at three levels of voluntary effort

Influence of subcutaneous fat on mechanomyographic signals at three levels of voluntary effort

Electromyography and mechanomyography of elbow agonists and antagonists in Parkinson disease

Chy‐3 mice are Vegfc haploinsufficient and exhibit defective dermal superficial to deep lymphatic transition and dermal lymphatic hypoplasia

Contact Info

Product

Resources

About