Physical and Psychosocial Factors Related to Low Back Pain During a 24-Year Period

Thorbjörnsson, Carina Bildt; Alfredsson, Lars; Fredriksson, Kerstin; Michélsen, Hans; Punnett, Laura; Vingård, Eva; Torgén, Margareta; Kilbom, Åsa

doi:10.1097/00007632-200002010-00019

Cited by 78 publications

(60 citation statements)

References 11 publications

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“…Twenty-five cohort studies and five case-control studies [47][48][49][50][51] explored the exposure within a working population. One study [52] explored non-occupational physical activity whilst five studies [53][54][55][56][57] explored both occupational as well as non-occupational physical activities.…”

Section: Study Characteristicsmentioning

confidence: 99%

“…The percentage loss to follow-up varied between 11 [53] and 43% [31] in studies with a follow-up of B1 year [25,28,29,31,37,38,42,46,52,53,55,56], between 10 [54] and 60% [31] in studies with a follow-up [1 and B3 years [22,23,25,28,31,34,35,39,41,49,54,55] and between 12 [45] and 28% [30,44] in studies with a follow-up of more than 3 years. In studies with a follow-up of more than 15 years [24,33,43,47] percentages loss to follow-up varied between 38 [47] and 84% [24].…”

Section: Study Characteristicsmentioning

confidence: 99%

“…The occurrence of new episodes of LBP was measured by the use of questionnaires [22, 24, 25, 27, 28, 31-34, 36, 38, 39, 42, 49, 53-56], interviews [24,41,49] or reports by care providers [50][51][52]57]. Sick leave was derived from questionnaires [25,26,28,29,33,37,38,43,45,47], company registers [23,26,35,40] and social insurance administrations [30,40,48].…”

Section: Study Characteristicsmentioning

confidence: 99%

“…Twentyeight studies applied (self-administered) questionnaires in the screening of exposures [22-24, 26-33, 36, 37, 39, 40, 42-45, 47-49, 52-57]. In 28% of the studies, authors gave information on the validation and/or reproducibility of the questionnaires [22,28,31,32,46,47,49,53,57]. Four studies used an interview [24,41,50,51] and four studies [25,34,35,38] used an observational method.…”

Section: Study Characteristicsmentioning

confidence: 99%

“…A significant trend was observed for the level of physical load and sick leave due to LBP. One study [47] described the association of both heavy physical load and sedentary work with LBP amongst both genders, although both exposures Vingard et al [57] CaseRef.…”

Section: Heavy Workload or Physically Demanding Workmentioning

confidence: 99%

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Physical activity and low back pain: a systematic review of recent literature

et al. 2011

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The objective of the study is to systematically evaluate the available evidence on the association between physical activity (i.e. occupational load and non-occupational physical activities) and low back pain (LBP). A systematic approach was used to explore the literature between 1999 and 2009. Studies were selected for inclusion following a comprehensive search of Medline, Embase and CINAHL. The methodological quality of each study was assessed. Studies were considered to be of 'high quality' if they met the cut-off criterion of 60% of the maximum available quality score. Thirty-six cohort or case-control studies were retrieved. Heavy workload and the accumulation of loads or frequency of lifts were moderate to strong risk factors for LBP. Strong associations were found for flexed, rotated and the awkward positions of the lumbar spine. Inconsistent results were found for leisure time physical activities, sports and physical exercise. Studies focusing on daily habitual physical activities (e.g. domestic activities and commuting) in association with LBP are lacking. In conclusion, the occurrence of LBP is related to the nature and intensity of the physical activities undertaken. However, physical activities can be subdivided into separate types and intensities and the ultimate physical load is the sum of all these activities. This makes it difficult to designate one particular activity as the cause of LBP.

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Section: Study Characteristicsmentioning

confidence: 99%

Section: Study Characteristicsmentioning

confidence: 99%

Section: Study Characteristicsmentioning

confidence: 99%

Section: Study Characteristicsmentioning

confidence: 99%

Section: Heavy Workload or Physically Demanding Workmentioning

confidence: 99%

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Physical activity and low back pain: a systematic review of recent literature

et al. 2011

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Physical workload, ergonomic problems, and incidence of low back injury: A 7.5‐year prospective study of San Francisco transit operators

Krause

Rugulies

Ragland

et al. 2004

American J Industrial Med

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TitlePhysical workload, ergonomic problems, and incidence of low back injury: A 7. Physical workload, ergonomic problems, and incidence of low back injury: A 7.5-year prospective study of San Francisco transit operatorsThe etiologic role of biomechanical factors for low back injury (LBI) needs to be confirmed in prospective studies that control for psychosocial factors. Methods: Complete baseline information on 1,233 vehicle operators was gathered during medical examinations and by questionnaire. First LBI during 7.5 years of follow-up was ascertained from insurance records. Hazard ratios and etiologic fractions were analyzed with Cox regression models stratified by injury severity and controlling for age, sex, height, weight, ethnicity, and biomechanical and psychosocial job factors. Severe LBI was defined as medically diagnosed postlaminectomy syndrome, spinal stenosis, herniated lumbar disc, sciatica, or spinal instability. Results: An exponential dose-response relationship was found between weekly driving hours and incidence of first LBI. Indicators of physical workload were more strongly associated with more severe low back injuries compared to less severe injuries. Rates of severe LBI increased 39% for every 10-hr increase in weekly driving (hazard ratio 1.39, 95% confidence interval 1.15-1.68). Higher risks of severe LBI were also found among operators performing heavy physical labor on cable cars (hazard ratio 2.76, 95% confidence intervals 1.24-614) or reporting more ergonomic problems at baseline HR for upper quartile 1.65 (95% confidence interval 1.08-2.50). Estimates of etiologic fractions suggest that reduction of ergonomic problems to the low level currently experienced by 25% of drivers would result in a 19% reduction of severe LBI among all drivers. A change from full-(more than 30 hr) to part-time driving (20-30 hr) could reduce the number of severe LBI by 59%, although this gain would be reduced to 28% at the company level if injuries expected among additional employees, hired to maintain full service are included. Conclusions: Duration of professional driving and ergonomic problems are independent and

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Age-Differentiated Work Systems

Schlick

2013

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Physical and Psychosocial Factors Related to Low Back Pain During a 24-Year Period

Abstract: Factors at work were seen to be risk indicators for low back pain among both genders. Low influence over work conditions among women and poor social relations at work among men, in combination with other factors, seem to be of high relevance for the occurrence of low back pain.

Cited by 78 publications

References 11 publications

Physical activity and low back pain: a systematic review of recent literature

Physical activity and low back pain: a systematic review of recent literature

Physical workload, ergonomic problems, and incidence of low back injury: A 7.5‐year prospective study of San Francisco transit operators

Age-Differentiated Work Systems

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