Effects of visually demanding near work on trapezius muscle activity

Zetterberg, Camilla; Forsman, Mikael; Richter, Hans

doi:10.1016/j.jelekin.2013.06.003

Cited by 36 publications

(57 citation statements)

References 49 publications

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“…Symptoms may include blurred vision, reading problems, headache, diplopia, and in many cases, difficulty in maintaining comfortable vision for a long time . Also, these visual disorders are associated with musculoskeletal discomfort in the neck and shoulder . Although the two conditions are usually studied independently, there are indications that they can be physiologically related .…”

Section: Introductionmentioning

confidence: 99%

“…Also, these visual disorders are associated with musculoskeletal discomfort in the neck and shoulder . Although the two conditions are usually studied independently, there are indications that they can be physiologically related . It is important to note that the computer vision syndrome (64–90% prevalence) is a term that encompasses one or more symptoms in the visual system, neck, and shoulder.…”

Section: Introductionmentioning

confidence: 99%

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Visual system disorders and musculoskeletal neck complaints: a systematic review and meta‐analysis

Sánchez-González

Gutiérrez-Sánchez

Sánchez‐González

et al. 2019

Annals of the New York Academy of Sciences

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Accommodation disorders and nonstrabismic binocular dysfunctions affect patients’ binocular system and visual performance. These visual disorders could be associated with musculoskeletal discomfort in the neck and shoulder area. The purpose of this systematic review and meta‐analysis was to ascertain the relationship between visual system disorders and the musculoskeletal system of the neck. The review protocol is available in PROSPERO (CRD42018112771). All articles selected examined the relationship between neck conditions (chronic neck pain and whiplash) and the visual system in adult populations. Studies with optometric or physiotherapeutic measurements were included. Bias risk was evaluated with the modified Cochrane Collaboration Tool and Study Quality Assessment Tool. To provide complete quality assessment evidence, the authors applied the GRADEpro Guideline Development Tool. The literature search was conducted in November 2018 and yielded 745 studies among all the databases. Out of these studies, 21 were finally included. Most of the studies presented a moderate methodological quality. Only one high‐quality trial was found. Based on a qualitative assessment, our systematic review and meta‐analysis revealed that all included studies established a relationship between the visual system and musculoskeletal system of the neck. However, the methods for the measurement of the visual system lacked uniformity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Visual system disorders and musculoskeletal neck complaints: a systematic review and meta‐analysis

Sánchez-González

Gutiérrez-Sánchez

Sánchez‐González

et al. 2019

Annals of the New York Academy of Sciences

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“…The specific aim was to investigate if an increase in ciliary muscle contraction force leads to a proportional and individualized increase in the level of trapezius muscle activity. These studies were the first to measure eye accommodation objectively and continuously while simultaneously measuring trapezius muscle activity . The limitations of those studies have been addressed in a recent study by Domkin et al .…”

Section: Introductionmentioning

confidence: 99%

Is it possible to relate accommodative visual dysfunctions to neck pain?

Sánchez-González

Pérez-Cabezas

López-Izquierdo

et al. 2018

Annals of the New York Academy of Sciences

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The aim of this study was to establish whether there is a relationship between conditions of accommodative visual dysfunctions and cervical complaints. Fifty-two participants were included. Variables were accommodative amplitude, positive and negative relative accommodation (NRA), accommodative response, and accommodative facility. Subjects were classified as accommodative insufficiency, accommodative excess, or normal. Neck complaints were measured with the Neck Disability Index, the Visual Analogue Scale, and by cervical range of motion, deep flexor muscle activation score, and performance index. We found the following significant relationships: between NRA and both performance index and left-side bending; accommodative amplitude right-eye with right-side bending and with left-side bending; accommodative amplitude left-eye with right-side bending; and accommodative facility left-eye with both performance index and left-side bending. In accommodative amplitude right-eye, aIl participants showed significant values and greater than those with accommodative excess. In both groups, performance index values were decreased. Greater pain and lower right-rotation were found in participants with accommodative excess than in those with accommodative insufficiency. We conclude that accommodative dysfunctions are related to low performance index, decreased range of motion, as well as greater neck pain.

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“…A relation has been shown between poor working posture and musculoskeletal disorders, stress, and discomfort [9][10][11][12]. When working positions are not optimal, visual requirements have a greater influence on working posture than manual or bodily requirements [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Reduced gait automaticity in female patients with chronic fatigue syndrome: Case-control study

et al. 2015

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Abstract-Patients with chronic fatigue syndrome (CFS)report difficulties walking for a prolonged period of time. This study compares gait automaticity between women with CFS and nondisabled controls. The "stops walking with eyes closed with secondary cognitive task" test is based on the classic "stops walking while talking" test but compares walking with eyes closed while performing a secondary cognitive task in a female CFS population (n = 34) and in female nondisabled controls (n = 38). When initiating gate, 23.5% of patients with CFS looked toward the ground compared with only 2.6% of nondisabled controls. After 7 m, subjects were asked to close their eyes, and after another 7 m, they were asked, "How much is 100 minus 7?" Of the patients with CFS, 55.9% stopped walking compared with 5.3% of nondisabled controls. Less automated walking was observed in patients with CFS than in nondisabled controls (p < 0.001). The test-retest reliability is moderate for global stopping. This simple test observed reduced gait automaticity in patients with CFS for the first time. Dual tasking could be helpful to address the functional limitations found in this particular study.

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Effects of visually demanding near work on trapezius muscle activity

Cited by 36 publications

References 49 publications

Visual system disorders and musculoskeletal neck complaints: a systematic review and meta‐analysis

Visual system disorders and musculoskeletal neck complaints: a systematic review and meta‐analysis

Is it possible to relate accommodative visual dysfunctions to neck pain?

Reduced gait automaticity in female patients with chronic fatigue syndrome: Case-control study

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