{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T02:00:27Z","timestamp":1769738427768,"version":"3.49.0"},"reference-count":81,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T00:00:00Z","timestamp":1625529600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002706","name":"AFA Insurance","doi-asserted-by":"publisher","award":["120223"],"award-info":[{"award-number":["120223"]}],"id":[{"id":"10.13039\/501100002706","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,11,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>In occupational life, performing cognitive work tasks in between fatiguing physical work tasks may allow recovery and reduce stress without losing productive working time. The temporal pattern of such alternations is likely a determinant of the recovery effect, influencing both stress and fatigue; the difficulty of the cognitive task (CT) would also be a likely determinant. The aim of this study was to determine to what extent the temporal pattern of alternations between a repetitive physical task and a CT of different difficulties influenced perceived fatigability, performance fatigability, stress-related outcomes, and performance. Fifteen women performed four work sessions comprising 110 min of repeated bouts of a repetitive physical task (pipetting), alternating with a CT (n-back). Sessions differed in bout cycle time (short: 7 + 3 min versus long: 14 + 6 min) and CT difficulty (CTdiff; easy versus difficult). Fatigue was assessed from recordings of maximal voluntary contraction force in shoulder elevations and handgrip pre- and post-work, electromyography (EMG) from the right trapezius and right forearm extensors during work, and repeated self-ratings of fatigue and pain throughout the session. Stress was assessed using electrocardiography (heart rate variability), salivary alpha-amylase, and self-reports. Perceived fatigue increased significantly over time for all protocols and more in long-cycle than short-cycle conditions. EMG activity did not increase markedly over time in any condition. Neither objective nor subjective indicators suggested that stress increased over time, regardless of the temporal pattern. Pipetting performance remained stable in all conditions. Cognitive performance, measured by the proportions of correct positive and false positive answers, differed between CTdiff levels but remained stable over time, with no significant difference between temporal patterns. In summary, temporal patterns of alternating tasks influenced fatigue to some extent but had no obvious influence on stress indicators or performance. Thus, designing job rotation with alternating physical and cognitive work should consider the temporal patterns of alternations to minimize fatigue.<\/jats:p>","DOI":"10.1093\/annweh\/wxab045","type":"journal-article","created":{"date-parts":[[2021,6,8]],"date-time":"2021-06-08T11:54:43Z","timestamp":1623153283000},"page":"1107-1122","source":"Crossref","is-referenced-by-count":6,"title":["Fatigue, Stress, and Performance during Alternating Physical and Cognitive Tasks\u2014Effects of the Temporal Pattern of Alternations"],"prefix":"10.1093","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4283-4199","authenticated-orcid":false,"given":"Susanna","family":"Mixter","sequence":"first","affiliation":[{"name":"Department of Occupational Health Sciences and Psychology, Faculty of Health and Occupational Studies, University of G\u00e4vle, Kungsb\u00e4cksv\u00e4gen 47, 801 76 G\u00e4vle, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Svend Erik","family":"Mathiassen","sequence":"additional","affiliation":[{"name":"Department of Occupational Health Sciences and Psychology, Faculty of Health and Occupational Studies, University of G\u00e4vle, Kungsb\u00e4cksv\u00e4gen 47, 801 76 G\u00e4vle, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sofie","family":"Bj\u00e4rntoft","sequence":"additional","affiliation":[{"name":"Department of Occupational Health Sciences and Psychology, Faculty of Health and Occupational Studies, University of G\u00e4vle, Kungsb\u00e4cksv\u00e4gen 47, 801 76 G\u00e4vle, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Petra","family":"Lindfors","sequence":"additional","affiliation":[{"name":"Division of Work and Organizational Psychology, Department of Psychology, Stockholm University, Frescati Hagv\u00e4g 8-14, 106 91 Stockholm, 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