Surface EMG to assess arm function in boys with DMD: A pilot study

Janssen, Mariska M. H. P.; Harlaar, Jaap; Groot, I. de

doi:10.1016/j.jelekin.2015.01.008

Cited by 15 publications

(12 citation statements)

References 22 publications

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“…UL performance of DMD patients has been studied by Janssen et al (6). They assessed the maximal voluntary isometric contraction of biceps brachii, anterior deltoid and lateral deltoid muscles, single joint movements of elbow flexion/extension and pronation/supination, shoulder abduction/adduction, flexion/extension, internal/external rotation and the simulation of reaching forward, touching contralateral shoulder, combing hair and bringing the hand to the mouth (6).…”

Section: Discussionmentioning

confidence: 99%

“…The patients performed single movements of these joints and the non-standardized tasks of reaching forward, touching the contralateral shoulder, combing hair and bringing the hand to the mouth. They found no significant differences in shoulder and elbow muscle recruitment between ULs (6). However, the activities of daily living were just simulated, without real goal or use of objects, which may have interfered on the results.…”

Section: Introductionmentioning

confidence: 90%

“…Janssen et al (6) investigated the differences between dominant and non-dominant UL activity of shoulder and elbow muscles of 5 patients with DMD. The patients performed single movements of these joints and the non-standardized tasks of reaching forward, touching the contralateral shoulder, combing hair and bringing the hand to the mouth.…”

Section: Introductionmentioning

confidence: 99%

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Patients with Duchenne and Becker muscular dystrophies are not more asymmetrical than healthy controls on timed performance of upper limb tasks

Artilheiro

Sá

Fávero

et al. 2017

Braz J Med Biol Res

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This study aimed to investigate possible asymmetries and relationships between performance of dominant and non-dominant upper limbs (UL) in patients with Duchenne and Becker muscular dystrophies (DMD/BMD), to compare UL performance of patients and healthy subjects and to investigate the relationship between timed performance of UL and age, motor function and muscle strength in DMD/BMD patients. Sixteen patients with DMD and 3 with BMD were evaluated with Jebsen-Taylor Test (timed performance), Vignos scale and Dimension 3 of Motor Function Measure (motor function), and Medical Research Council scale (muscle strength) on a single session. ANOVA showed no asymmetry between dominant and non-dominant UL, except in the writing subtest, in patients and in healthy controls. There were relationships between dominant and non-dominant UL performances. Correlations between timed performance, motor function and muscle strength were found, but age was not correlated with these variables. These findings may reduce the assessment time, prevent fatigue and provide more accurate clinical reasoning involving UL in DMD/BMD treatment.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 90%

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Patients with Duchenne and Becker muscular dystrophies are not more asymmetrical than healthy controls on timed performance of upper limb tasks

Artilheiro

Sá

Fávero

et al. 2017

Braz J Med Biol Res

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“…The primary consequence of DMD is the decline of muscle function. Surface electromyography (EMG) has great potential as a measurement instrument in assessing muscle biomechanics . Quantitative EMG data can provide information on disease severity in various muscular dysfunctions .…”

mentioning

confidence: 99%

Stomatognathic function in Duchenne muscular dystrophy: a case–control study

Ferreira

Silva

Gonçalves

et al. 2016

Develop Med Child Neuro

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DMDDuchenne muscular dystrophy LSCM Left sternocleidomastoid muscle RSCM Right sternocleidomastoid muscle AIM This study aimed to analyse electromyographic activity, masticatory efficiency, muscle thickness, and bite force of individuals with Duchenne muscular dystrophy (DMD).METHOD Forty males aged 4-15 years, 20 with DMD and 20 healthy age-, height-, and weight-matched controls, underwent electromyography and ultrasonography of temporalis, masseter, and sternocleidomastoid muscles during postural control of the jaw, mastication, and maximal molar bite force. RESULTSThe normalized electromyography signals showed higher activity in masseter and temporal muscles at rest, during protrusion, left and right laterality, and fatigue condition in the group with DMD than in the comparison group (p≤0.05). For masticatory efficiency of cycles, in analysis of non-habitual chewing of flavourless gum, and habitual chewing of peanuts and raisins, the group with DMD presented lower averages (p≤0.05). For the muscle thickness, the results showed that there was a lower muscle thickness in the group with DMD for all muscles during the rest and maximal voluntary contraction, except for masseter and sternocleidomastoid in the maximal voluntary contraction. In the maximal molar bite force, the group with DMD presented higher values for both sides than the comparison group (p≤0.05).INTERPRETATION Patients with DMD show muscle changes related to the stomatognathic system, in their activity, bite force, and muscle thickness.Duchenne muscular dystrophy (DMD) is an X-linked lethal neuromuscular disease that affects males. 1,2 Necrosis of skeletal muscle fibres, muscle fibrosis, and the infiltration of adipose tissue are seen from infancy. 3,4 Diagnosis is based on clinical presentation associated with a DNA diagnosis, significant elevations in the serum creatine kinase levels, morphological changes in the affected muscles, and the absence of the protein dystrophin. 5,6 The primary consequence of DMD is the decline of muscle function. Surface electromyography (EMG) has great potential as a measurement instrument in assessing muscle biomechanics.7 Quantitative EMG data can provide information on disease severity in various muscular dysfunctions. 8 The concomitant use of ultrasonography allows for the observation of changes in the muscle architecture, with the substitution of muscle cells by fat and connective tissue. The purpose of this study was to use surface EMG to detect changes in the patterns of EMG signals in patients with DMD to assess the activity of their temporalis, masseter, and sternocleidomastoid muscles bilaterally, and to analyse the masticatory efficiency, maximal molar bite force, and ultrasonography to evaluate muscle thickness of these muscles.These methods of analysis allow for the functional and quantitative study of the muscular system and provide important information about the morphology and activity levels of the muscles.10 Information about alterations in muscles of the stomatognathic system, including bite force...

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“…[267], Bowen et. al [268], Kumangai and Yamada [269], Fascarelli et al [270], and Janssen et al [271] measured EMG signals from upper extremity muscles in subjects with DMD aged between 5 to 22 years. To the best of our knowledge there are no published studies that report the measurement of upper-extremity EMG signals in men with DMD older than 24 years, which is the period when robotic arm supports are most needed.…”

Section: Introductionmentioning

confidence: 99%

Control interfaces to actively support the arm function of men with Duchenn Muscular Dystrophy

Lobo-Prat¹

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Surface EMG to assess arm function in boys with DMD: A pilot study

Cited by 15 publications

References 22 publications

Patients with Duchenne and Becker muscular dystrophies are not more asymmetrical than healthy controls on timed performance of upper limb tasks

Patients with Duchenne and Becker muscular dystrophies are not more asymmetrical than healthy controls on timed performance of upper limb tasks

Stomatognathic function in Duchenne muscular dystrophy: a case–control study

Control interfaces to actively support the arm function of men with Duchenn Muscular Dystrophy

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