Dataset Information

An Instrumented Workstation to Evaluate Weight-Bearing Distribution in the Sitting Posture.

ABSTRACT: Background:Sitting posture may be related to risk factors, including inadequate weight-bearing support, particularly when maintained for long periods. Considering that body weight is loaded in a closed support system composed of the seat, backrest, floor and working surface, the aims of the present study were to describe the development of an ergonomic sitting workstation to continuously record weight-bearing at the seat, chair, backrest, work surface, and floor and to test its measurement properties: reproducibility, criterion-related validity, and sensitivity. Methods:Rigid bodies (1 to 30 kg) and participant weights were recorded to evaluate the workstation measurement properties. Results:Rigid body tests showed variation values less than 0.050 kg on reproducibility test and errors below 5% of measured value on criterion validity tests. Participant tests showed no statistically significant differences between repeated measures (p ? 0.40), errors were less than 2% of participant weights and sensitivity presented statistically significant changes (p = 0.007). Conclusion:The sitting workstation proposed showed to be reliable, valid and sensitive for use in future ergonomic studies to evaluate the sitting posture.

SUBMITTER: Moriguchi CS

PROVIDER: S-EPMC6718046 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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An Instrumented Workstation to Evaluate Weight-Bearing Distribution in the Sitting Posture.

Moriguchi Cristiane S CS Sato Tatiana O TO Coury Helenice J C G HJCG

Safety and health at work 20190128 3

<h4>Background</h4>Sitting posture may be related to risk factors, including inadequate weight-bearing support, particularly when maintained for long periods. Considering that body weight is loaded in a closed support system composed of the seat, backrest, floor and working surface, the aims of the present study were to describe the development of an ergonomic sitting workstation to continuously record weight-bearing at the seat, chair, backrest, work surface, and floor and to test its measureme ...[more]

PMID: 31497327

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Project description:BackgroundA lack of physical activity and excessive sitting can contribute to poor physical health and wellbeing. The high percentage of the UK adult population in employment, and the prolonged sitting associated with desk-based office-work, make these workplaces an appropriate setting for interventions to reduce sedentary behaviour and increase physical activity. This pilot study aims to determine the effect of an office-based sit-stand workstation intervention, compared with usual desk use, on daily sitting, standing and physical activity, and to examine the factors that underlie sitting, standing and physical activity, within and outside, the workplace.Methods/designA randomised control trial (RCT) comparing the effects of a sit-stand workstation only and a multi-component sit-stand workstation intervention, with usual desk-based working practice (no sit-stand workstation) will be conducted with office workers across two organisations, over a 12 month period (N = 30). The multicomponent intervention will comprise organisational, environmental and individual elements. Objective data will be collected at baseline, and after 2-weeks, 3-months, 6-months and 12-months of the intervention. Objective measures of sitting, standing, and physical activity will be made concurrently (ActivPAL3™ and ActiGraph (GT3X+)). Activity diaries, ethnographic participant observation, and interviews with participants and key organisational personnel will be used to elicit understanding of the influence of organisational culture on sitting, standing and physical activity behaviour in the workplace.DiscussionThis study will be the first long-term sit-stand workstation intervention study utilising an RCT design, and incorporating a comprehensive process evaluation. The study will generate an understanding of the factors that encourage and restrict successful implementation of sit-stand workstation interventions, and will help inform future occupational wellbeing policy and practice. Other strengths include the objective measurement of physical activity during both work and non-work hours.Trail registrationClinicaltrials.gov identifier NCT02172599, 22nd June 2014.

Dataset Information

An Instrumented Workstation to Evaluate Weight-Bearing Distribution in the Sitting Posture.

Publications

An Instrumented Workstation to Evaluate Weight-Bearing Distribution in the Sitting Posture.

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