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Comparing two metho...
Comparing two methods to record maximal voluntary contractions and different electrode positions in recordings of forearm extensor muscle activity : refining risk assessments for work-related wrist disorders
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- Dahlqvist, Camilla (författare)
- Lund University,Lunds universitet,Arbetsrelaterade besvär i rörelseorganen,Forskargrupper vid Lunds universitet,Work-related musculoskeletal disorders,Lund University Research Groups,Skåne University Hospital
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- Nordander, Catarina (författare)
- Lund University,Lunds universitet,Arbetsrelaterade besvär i rörelseorganen,Forskargrupper vid Lunds universitet,Work-related musculoskeletal disorders,Lund University Research Groups,Skåne University Hospital
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- Granqvist, Lothy (författare)
- Lund University,Lunds universitet,Arbetsrelaterade besvär i rörelseorganen,Forskargrupper vid Lunds universitet,Work-related musculoskeletal disorders,Lund University Research Groups,Skåne University Hospital
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- Forsman, Mikael, Professor (författare)
- Karolinska Institutet
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- Hansson, Gert Åke (författare)
- Lund University,Lunds universitet,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine,Skåne University Hospital
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(creator_code:org_t)
- IOS Press, 2018
- 2018
- Engelska.
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Ingår i: Work. - : IOS Press. - 1051-9815. ; 59:2, s. 231-242
- Relaterad länk:
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https://content.iosp...
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http://dx.doi.org/10... (free)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://lup.lub.lu.s...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Background: Wrist disorders are common in force demanding industrial repetitive work. Visual assessment of force demands have a low reliability, instead surface electromyography (EMG) may be used as part of a risk assessment for work-related wrist disorders. For normalization of EMG recordings, a power grip (hand grip) is often used as maximal voluntary contraction (MVC) of the forearm extensor muscles. However, the test-retest reproducibility is poor and EMG amplitudes exceeding 100% have occasionally been recorded during work. An alternative MVC is resisted wrist extension, which may be more reliable.Objective: To compare hand grip and resisted wrist extension MVCs, in terms of amplitude and reproducibility, and to examine the effect of electrode positioning.Methods: Twelve subjects participated. EMG from right forearm extensors, from four electrode pairs, was recorded during MVCs, on three separate occasions.Results: The group mean EMG amplitudes for resisted wrist extension were 1.2-1.7 times greater than those for hand grip. Resisted wrist extension showed better reproducibility than hand grip.Conclusions: The results indicate that the use of resisted wrist extension is a more accurate measurement of maximal effort of wrist extensor contractions than using hand grip and should increase the precision in EMG recordings from forearm extensor muscles, which in turn will increase the quality of risk assessments that are based on these.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Arbetsmedicin och miljömedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Occupational Health and Environmental Health (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Annan medicinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Other Medical Engineering (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Hälso- och sjukvårdsorganisation, hälsopolitik och hälsoekonomi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Health Care Service and Management, Health Policy and Services and Health Economy (hsv//eng)
Nyckelord
- Technical risk assessment
- electromyography
- hand grip
- normalization
- resisted wrist extension
- electromyography
- hand grip
- normalization
- resisted wrist extension
- Technical risk assessment
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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