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Effects of combining physical and cognitive work tasks - a systematic review
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational Health Science and Psychology, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0002-4283-4199
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational Health Science and Psychology, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-1443-6211
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational Health Science and Psychology, Occupational Health Science. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0002-6668-5044
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.ORCID iD: 0000-0003-4298-7459
Show others and affiliations
(English)Manuscript (preprint) (Other academic)
National Category
Occupational Health and Environmental Health
Research subject
Health-Promoting Work
Identifiers
URN: urn:nbn:se:hig:diva-35466OAI: oai:DiVA.org:hig-35466DiVA, id: diva2:1539149
Part of project
Alternerande fysisk och kognitiv arbetsbelastning - effekter på prestation, trötthet och återhämtning, Afa Sjukförsäkringsaktiebolag
Funder
AFA Insurance, 120221Available from: 2021-03-23 Created: 2021-03-23 Last updated: 2021-03-26Bibliographically approved
In thesis
1. Combining cognitive and physical work tasks: Short-term effects on fatigue, stress, performance and recovery
Open this publication in new window or tab >>Combining cognitive and physical work tasks: Short-term effects on fatigue, stress, performance and recovery
2021 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Background: Although combinations of physical and cognitive work tasks occurs in working life (both concurrent and alternating), no one has summarized the research regarding such combinations. Very few studies have investigated the effects of alternating physical and cognitive tasks, which have been suggested as an alternative to classic job rotation. The aim with this thesis was to investigate the effects of concurrent and alternating cognitive and physical work tasks on fatigue, stress, recovery, and performance and whether the task difficulty and the temporal pattern is important in this respect. 

Methods: In study I, 48 controlled studies comprising combinations of physical and cognitive work tasks was summarized in a systematic review. In two controlled experiments (study II, III and IV), participants performed alternations of a physical and a cognitive task. In study II and III, the difficulty levels of the cognitive task was varied between conditions, and in study IV, the temporal patterns and cognitive task difficulty was varied between conditions. During work, indicators of fatigue (study II and IV), stress (study III and IV) and performance (study II and IV) was assessed. 

Results: Concurrent physical and cognitive work tasks have a negative impact on biomechanical indicators, fatigue and performance, while the effect on stress seems mixed. Alternating physical and cognitive work tasks leads to some accumulated fatigue over time, with physical recovery taking place during the cognitive task. Indicators of stress did not increase over time, and neither fatigue nor stress was influenced by cognitive task difficulty. 

Conclusions: Concurrent physical and cognitive work should be avoided in working life and if they must be performed, employers should decrease task demands. Alternations on the other hand, could be carried out without excessive fatigue or stress, and with maintained performance. This thesis provides a basis for recommendations on how to properly organize job-rotation schemes. 

Abstract [sv]

Bakgrund: Kombinationer av fysiska och kognitiva arbetsuppgifter förekommer i många yrken (både samtidiga och alternerande), men ännu har ingen sammanfattat forskningen gällande effekterna av sådana kombinationer. Väldigt få studier har undersökt effekterna av alternerande fysiska och kognitiva uppgifter, vilket har föreslagits som ett alternativ till klassisk jobbrotation. Syftet med denna avhandling var att undersöka effekten av samtidiga och alternerande fysiska och kognitiva arbetsuppgifter på trötthet, stress, återhämtning och prestation, och i vilken utsträckning som den kognitiva arbetsuppgiftens svårighetsgrad och tidsmönstret av alterneringarna har betydelse för utfallen.

Metod: I studie I sammanfattades 48 studier bestående av kombinationer av fysiska och kognitiva uppgifter i en systematisk litteraturöversikt. I två kontrollerade experiment (Studie II, III och IV), utförde deltagare alterneringar av en fysisk och en kognitiv uppgift. I studie II och III varierades svårighetsgraden av den kognitiva uppgiften mellan betingelserna, och i studie IV varierades både svårighetsgraden och tidsmönstret av alterneringar mellan betingelserna. Under arbetet mättes indikatorer på trötthet (studie II och IV), stress (studie IIIoch IV) och prestation (studie II och IV).

Resultat: Samtidiga fysiska och kognitiva arbetsuppgifter har en negativ inverkan på biomekaniska indikatorer, trötthet och prestation, medan effekten på stress är mer oklar. Alternerande fysiskt och kognitivt arbete leder till viss ackumulerad trötthet över tid, men med fysisk återhämtning under den kognitiva uppgiften. Indikatorer på stress ökade inte över tid, och varken trötthet eller stress påverkades av den kognitiva uppgiftens svårighetsgrad.

Slutsatser: Samtidiga fysiska kognitiva uppgifter bör undvikas i arbetslivet och om de måste utföras, bör arbetsgivaren minska arbetsuppgiftens krav. Alterneringar verkar å andra sidan kunna utföras utan större påverkan på trötthet och stress, och med bibehållen prestation. Resultaten från den här avhandlingen kan utgöra en bas för rekommendationer om hur arbetsrotationer ska organiseras.

Place, publisher, year, edition, pages
Gävle: Gävle University Press, 2021. p. 72
Series
Doctoral thesis ; 23
Keywords
physical, repetitive, cognitive, mental, load, variation, job rotation, restoration, allostatic load, fysisk, repetitiv, kognitiv, mental, belastning, variation, arbetsrotation, återhämtning, allostatisk belastning
National Category
Occupational Health and Environmental Health
Research subject
Health-Promoting Work
Identifiers
urn:nbn:se:hig:diva-35467 (URN)978-91-88145-71-0 (ISBN)978-91-88145-72-7 (ISBN)
Public defence
2021-06-04, Lilla Jadwigasalen 12:108 samt via länk: https://hig-se.zoom.us/j/61899369620, Kungsbäcksvägen 47, 801 76 Gävle, Gävle, 09:00 (Swedish)
Opponent
Supervisors
Funder
AFA Insurance, 120223
Available from: 2021-05-12 Created: 2021-03-24 Last updated: 2024-08-29Bibliographically approved

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Mixter, SusannaMathiassen, Svend ErikJahncke, HelenaHygge, StaffanLyskov, EugeneHallman, David

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