Differences in muscle activity during hand-dexterity tasks between women with arthritis and a healthy reference group

Brorsson, Sofia; Nilsdotter, Anna; Thorstensson, Carina A; Bremander, Ann

doi:10.1186/1471-2474-15-154

Cited by 15 publications

(18 citation statements)

References 36 publications

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“…It is possible that the association between muscle attenuation and grip strength was not present in women due to additional medical conditions that are more prevalent in women. For example, both rheumatoid arthritis and osteoarthritis are more common in women and have been shown to be associated with weaker grip strength (Brorsson et al 2014).…”

Section: Principle Findingsmentioning

confidence: 99%

Intramuscular fat and physical performance at the Framingham Heart Study

Therkelsen

Pedley

Hoffmann

et al. 2016

AGE

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Intramuscular fat may mediate associations between obesity and physical disability. We examined the associations between muscle attenuation, a proxy for intramuscular fat, and physical function. Paraspinous muscle computed tomography attenuation was obtained on a Framingham Heart Study subgroup (n = 1152, 56 % women, mean age 66 years). Regressions modeled cross-sectional associations between muscle attenuation and mobility disability, grip strength, and walking speed with standard covariates; models additionally adjusted for body mass index (BMI) and visceral adipose tissue (VAT). Separate models investigated associations between VAT and subcutaneous adipose tissue (SAT) and physical function. Per 1 standard deviation decrement in muscle attenuation (i.e., more muscle fat), we observed 1.29 (95 % CI = 1.11, 1.50; p = 0.0009) increased odds of walking speed ≤1 m/s in women and men. This persisted after separate BMI and VAT adjustments (p < 0.02). In men, there was a 1.29 kg (95 % CI = 0.57, 2.01; p = 0.0005) decrement in grip strength, which persisted after BMI and VAT adjustments (p ≤ 0.0004). For VAT and SAT, similar associations were not observed. Intramuscular fat is associated with increased odds of walking speed ≤1 m/s in both sexes and lower grip strength in men. There were no similar associations for VAT and SAT, highlighting the specificity of intramuscular fat in association with physical function.

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Section: Principle Findingsmentioning

confidence: 99%

Intramuscular fat and physical performance at the Framingham Heart Study

Therkelsen

Pedley

Hoffmann

et al. 2016

AGE

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“…The study of muscle activation through surface electromyography (sEMG) allows a real-time, noninvasive assessment of the activation pattern of muscles during the activity performance (Gurney et al, 2016). Although sEMG has been used to evaluate the muscle activation patterns in several self-care (Meijer et al, 2014), productivity (Almeida, Cruz, Magna, & Ferrigno, 2013;Ferrigno, Cliquet, Magna, & Zoppi Filho, 2009), and leisure activities (Donoso Brown, McCoy, Fechko, Price, Gilbertson, & Moritz, 2014), few studies have analysed the different recruitment of muscle fibres during the performances of different hand function tests (Brorsson, Nilsdotter, Thorstensson, & Bremander, 2014;Calder, Galea, Wessel, MacDermid, & MacIntyre, 2011).…”

Section: Introductionmentioning

confidence: 99%

Electromyographic Activity of the Upper Limb in Three Hand Function Tests

Silva

Almeida

Mendes

et al. 2017

Hong Kong Journal of Occupational Therapy

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Objective/BackgroundOccupational therapists usually assess hand function through standardised tests, however, there is no consensus on how the scores assigned to hand dexterity can accurately measure hand function required for daily activities and few studies evaluate the movement patterns of the upper limbs during hand function tests. This study aimed to evaluate the differences in muscle activation patterns during the performance of three hand dexterity tests.MethodsTwenty university students underwent a surface electromyographic (sEMG) assessment of eight upper limb muscles during the performance of the box and blocks test (BEST), nine-hole peg test (9HPT), and functional dexterity test (FDT). The description and comparison of each muscle activity during the test performance, gender differences, and the correlation between individual muscles’ sEMG activity were analysed through appropriate statistics.ResultsIncreased activity of proximal muscles was found during the performance of BEST (p < .001). While a higher activation of the distal muscles occurred during the FDT and 9HPT performance, no differences were found between them. Comparisons of the sEMG activity revealed a significant increase in the muscle activation among women (p = .05). Strong and positive correlations (r > .5; p < .05) were observed between proximal and distal sEMG activities, suggesting a coordinate pattern of muscle activation during hand function tests.ConclusionThe results suggested the existence of differences in the muscle activation pattern during the performance of hand function evaluations. Occupational therapists should be aware of unique muscle requirements and its impact on the results of dexterity tests during hand function evaluation.

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“…In this line, some studies have proposed the addition of sEMG analysis to clinical assessments to provide quantitative measures of therapy outcomes for people with motor impairment and physical disability in the upper limb, such as stroke [ 9 ] or hemiplegia [ 10 ]. In those studies, the amplitude of the sEMG signal is used to provide quantitative measures, as patients have a reduced neuromuscular amplitude [ 5 , 9 , 11 ]. However, there is no consensus on the muscles or areas of the forearm that must be measured in each case.…”

Section: Introductionmentioning

confidence: 99%

Identification of forearm skin zones with similar muscle activation patterns during activities of daily living

Jarque-Bou

Vergara

Sancho-Bru

et al. 2018

J NeuroEngineering Rehabil

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BackgroundA deeper knowledge of the activity of the forearm muscles during activities of daily living (ADL) could help to better understand the role of those muscles and allow clinicians to treat motor dysfunctions more effectively and thus improve patients’ ability to perform activities of daily living.MethodsIn this work, we recorded sEMG activity from 30 spots distributed over the skin of the whole forearm of six subjects during the performance of 21 representative simulated ADL from the Sollerman Hand Function Test. Functional principal component analysis and hierarchical cluster analysis (HCA) were used to identify forearm spots with similar muscle activation patterns.ResultsThe best classification of spots with similar activity in simulated ADL consisted in seven muscular-anatomically coherent groups: (1) wrist flexion and ulnar deviation; (2) wrist flexion and radial deviation; (3) digit flexion; (4) thumb extension and abduction/adduction; (5) finger extension; (6) wrist extension and ulnar deviation; and (7) wrist extension and radial deviation.ConclusionThe number of sEMG sensors could be reduced from 30 to 7 without losing any relevant information, using them as representative spots of the muscular activity of the forearm in simulated ADL. This may help to assess muscle function in rehabilitation while also simplifying the complexity of prosthesis control.

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Differences in muscle activity during hand-dexterity tasks between women with arthritis and a healthy reference group

Cited by 15 publications

References 36 publications

Intramuscular fat and physical performance at the Framingham Heart Study

Intramuscular fat and physical performance at the Framingham Heart Study

Electromyographic Activity of the Upper Limb in Three Hand Function Tests

Identification of forearm skin zones with similar muscle activation patterns during activities of daily living

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