Thirty Minutes Identified as the Threshold for Development of Pain in Low Back and Feet Regions, and Predictors of Intensity of Pain during 1-h Laboratory-Based Standing in Office Workers

Beatriz Rodríguez-Romero, Michelle D. Smith, Sonia Pértega-Díaz, Alejandro Quintela-del-Rio and Venerina Johnston
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Beatriz Rodríguez-Romero: Psychosocial Intervention and Functional Rehabilitation Research Group, Department of Physiotherapy, Medicine and Biomedical Sciences, Campus Oza, University of A Coruña, 15071 A Coruna, Spain
Michelle D. Smith: School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia
Sonia Pértega-Díaz: Rheumatology and Health Research Group, Department of Health Sciences, Campus Esteiro, University of A Coruña, 15471 Ferrol, Spain
Alejandro Quintela-del-Rio: Department of Mathematics, University of A Coruña, 15071 A Coruna, Spain
Venerina Johnston: School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia

IJERPH, 2022, vol. 19, issue 4, 1-14

Abstract: This study with 40 office workers investigated (a) the effect of time spent standing on low- back and lower limb pain during a 1-h laboratory-based task; (b) the standing time after which a significant increase in pain is likely; and (c) the individual, physical and psychosocial factors that predict pain. The primary outcome was bodily location of pain and pain intensity on a 100-mm Visual Analogue Scale recorded at baseline and every 15 min. Physical measures included trunk and hip motor control and endurance. Self-report history of pain, physical activity, psychosocial job characteristics, pain catastrophizing and general health status were collected. Univariate analysis and regression models were included. The prevalence of low-back pain increased from 15% to 40% after 30 min while feet pain increased to 25% from 0 at baseline. The intensity of low-back and lower limb pain also increased over time. A thirty-minute interval was identified as the threshold for the development and increase in low-back and feet pain. Modifiable factors were associated with low-back pain intensity—lower hip abductor muscle endurance and poorer physical health, and with feet symptoms—greater body mass index and less core stability.

Keywords: low-back pain; standing position; musculoskeletal pain; lower extremity (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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