Spinal shrinkage, sagittal alignment and back discomfort changes in manufacturing company workers during a working day

Prolonged standing and lifting heavy loads are risk factors for the appearance of low back pain in work. The aim of this study was to observe changes in the height, spinal sagittal alignment, and the lumbar and dorsal discomfort perception in assembly line workers. Cross-sectional study, 40 assembly...

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Bibliographic Details
Published in:Ergonomics 2019-12, Vol.62 (12), p.1534-1541
Main Authors: Rabal-Pelay, Juan, Cimarras-Otal, Cristina, Alcázar-Crevillén, Andrés, Planas-Barraguer, Juan Luis, Bataller-Cervero, Ana Vanessa
Format: Article
Language:English
Subjects:
Adult
Alignment
Assembly lines
assembly workers
Automobile industry
Back Pain - physiopathology
Cross-Sectional Studies
Curvature
Discomfort
Female
Females
Humans
Kyphosis
Kyphosis - physiopathology
Lordosis - physiopathology
Low back discomfort
Low back pain
lumbar lordosis
Male
Manufacturing and Industrial Facilities
Middle Aged
Occupational Diseases - physiopathology
Pain perception
prolonged standing
Risk analysis
Risk factors
Shrinkage
Space life sciences
spinal shrinkage
Spine (lumbar)
Standing Position
Surveys and Questionnaires
Thorax
Workers
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Summary:Prolonged standing and lifting heavy loads are risk factors for the appearance of low back pain in work. The aim of this study was to observe changes in the height, spinal sagittal alignment, and the lumbar and dorsal discomfort perception in assembly line workers. Cross-sectional study, 40 assembly line workers (6 females). Height, sitting height, grades of thoracic kyphosis and lumbar lordosis and perceived spine discomfort, before and after the working day, were determined. Thoracic and lumbar sagittal alignment was compared between discomfort developers and no developers. There was a significant decrease in the height and sitting height of the workers at the end of the day. Thoracic and lumbar curvature increased significantly, as did the perceived lumbar discomfort. Workers on the assembly line, in a prolonged standing work, suffer an increase in lumbar discomfort, and changes in height and thoracic and lumbar curvatures. Practitioner summary: Spinal shrinkage, sagittal alignment and back discomfort (upper and lower back), were analysed in assembly line workers in prolonged standing during a workday. Assembly line workers suffer a decrease in height, an increase in their thoracic and lumbar curvature, and in lumbar discomfort throughout their workday.
ISSN:0014-0139
1366-5847
DOI:10.1080/00140139.2019.1672896