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Evaluation of physiological workload assessment methods using heart rate and accelerometry for a smart wearable system.

Yang, Liyun, 1992- (author)
Karolinska Institutet,KTH,Ergonomi,IMM, Karolinska Institutet,KTH Royal Institute of Technology
Lu, Ke (author)
KTH,Ergonomi,KTH Royal Institute of Technology
Forsman, Mikael (author)
Karolinska Institutet,KTH,Ergonomi,IMM, Karolinska Institutet,KTH Royal Institute of Technology
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Lindecrantz, Kaj, 1951- (author)
Karolinska Institutet
Seoane, Fernando, 1976- (author)
Karolinska Institutet,University of Borås
Ekblom, Örjan, 1971- (author)
Gymnastik- och idrottshögskolan,Björn Ekbloms forskningsgrupp,GIH, The Swedish School of Sport and Health
Eklund, Jörgen (author)
KTH,Ergonomi,KTH Royal Institute of Technology
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 (creator_code:org_t)
2019-02-26
2019
English.
In: Ergonomics. - : Taylor & Francis. - 0014-0139 .- 1366-5847. ; 62:5, s. 694-705
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Work metabolism (WM) can be accurately estimated by oxygen consumption (VO2), which is commonly assessed by heart rate (HR) in field studies. However, the VO2-HR relationship is influenced by individual capacity and activity characteristics. The purpose of this study was to evaluate three models for estimating WM compared with indirect calorimetry, during simulated work activities. The techniques were: the HR-Flex model; HR branched model, combining HR with hip-worn accelerometers (ACC); and HR + arm-leg ACC model, combining HR with wrist- and thigh-worn ACC. Twelve participants performed five simulated work activities and three submaximal tests. The HR + arm-leg ACC model had the overall best performance with limits of agreement (LoA) of -3.94 and 2.00 mL/min/kg, while the HR-Flex model had -5.01 and 5.36 mL/min/kg and the branched model, -6.71 and 1.52 mL/min/kg. In conclusion, the HR + arm-leg ACC model should, when feasible, be preferred in wearable systems for WM estimation. Practitioner Summary: Work with high energy demand can impair employees' health and life quality. Three models were evaluated for estimating work metabolism during simulated tasks. The model combining heart rate, wrist- and thigh-worn accelerometers showed the best accuracy. This is, when feasible, suggested for wearable systems to assess work metabolism.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Hälsovetenskap -- Arbetsmedicin och miljömedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Health Sciences -- Occupational Health and Environmental Health (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Medicinteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Medical Engineering (hsv//eng)

Keyword

Heart rate
estimation models
motion sensing
risk assessment
wearable sensors
work metabolism
Medicin/Teknik
Medicine/Technology

Publication and Content Type

ref (subject category)
art (subject category)

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