The Loads on the Lumbar Spine during Work at an Assembly Line

Magnusson, Marianne; Granqvist, Marianne; Jonson, R.; Lindell, Viveka; Lundberg, Ulf; Wallin, Leif; Hansson, Tommy

doi:10.1097/00007632-199008010-00007

Cited by 31 publications

(4 citation statements)

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“…Variables like work strain, or biological variables like genetics, were not included in this study and can not be ruled out as possible confounders. However, we know that although heavy work has been found to predict duration of sick leave [20], it seems to be the subjective perception more than objective strain in terms of high peak loads, repetitive lifts, or heavy loads that determine the outcome [44]. The results of this study are in line with the notion made earlier about the nature of predictors found in the literature, namely their individual and cognitive characteristics.…”

Section: Discussionsupporting

confidence: 87%

Expectations, perceptions, and physiotherapy predict prolonged sick leave in subacute low back pain

Rème

Hagen

Eriksen

2009

BMC Musculoskelet Disord

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BackgroundBrief intervention programs for subacute low back pain (LBP) result in significant reduction of sick leave compared to treatment as usual. Although effective, a substantial proportion of the patients do not return to work. This study investigates predictors of return to work in LBP patients participating in a randomized controlled trial comparing a brief intervention program (BI) with BI and physical exercise.MethodsPredictors for not returning to work was examined in 246 patients sick listed 8-12 weeks for low back pain. The patients had participated in a randomized controlled trial, with BI (n = 122) and BI + physical exercise (n = 124). There were no significant differences between the two intervention groups on return to work. The groups were therefore merged in the analyses of predictors. Multiple logistic regression analysis was used to identify predictors for non return to work at 3, 12, and 24 months of follow-up.ResultsAt 3 months of follow-up, the strongest predictors for not returning to work were pain intensity while resting (OR = 5.6; CI = 1.7-19), the perception of constant back strain when working (OR = 4.1; CI = 1.5-12), negative expectations for return to work (OR = 4.2; CI = 1.7-10), and having been to a physiotherapist prior to participation in the trial (OR = 3.3; CI = 1.3-8.3). At 12 months, perceived reduced ability to walk far due to the complaints (OR = 2.6; CI = 1.3-5.4), pain during activities (OR = 2.4; CI = 1.1-5.1), and having been to a physiotherapist prior to participation in the trial (OR = 2.1; CI = 1.1-4.3) were the strongest predictors for non return to work. At 24 months age below 41 years (OR = 2.9; CI = 1.4-6.0) was the only significant predictor for non return to work.ConclusionIt appears that return to work is highly dependant on individual and cognitive factors. Patients not returning to work after the interventions were characterized by negative expectations, perceptions about pain and disability, and previous physiotherapy treatment. This is the first study reporting that previous treatment by physiotherapists is a risk factor for long-term sick leave. This has not been reported before and is an interesting finding that deserves more scrutiny.

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Section: Discussionsupporting

confidence: 87%

Expectations, perceptions, and physiotherapy predict prolonged sick leave in subacute low back pain

Rème

Hagen

Eriksen

2009

BMC Musculoskelet Disord

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“…Transtornos psicossociais como depressão, hipocondríase, histeria, alcoolismo, fumo 5,60 , divórcio, descontentamento, desmotivação com as atividades ocupacionais, entre outros são mais freqüentes nos indivíduos com lombalgia 4,16,76,130,132 .…”

Section: Fatores De Riscounclassified

“…O bom prognóstico da lombalgia crônica está relacionado à avaliação e tratamento multifatorial com a combinação de fatores médicos, sócio-demográficos e psicológicos. Parece que fatores psicossociais são melhores preditores que os biomédicos 76 . A acurácia do prognóstico é de 70% a 80% 53 .…”

Section: Prognósticounclassified

Lombalgia

Imamura

Kaziyama

Imamura

2001

Rev. Med. (São Paulo)

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A lombalgia é uma das queixas mais comuns no ser humano. Várias são as razões de sua ocorrência. Dentre elas destacam-se as de origem músculo-esquelética, incluindo especialmente, as síndromes dolorosas miofasciais. Os dados de história e de exame físico são a base do diagnóstico das etiologias e nosologias das lombalgias. A investigação diagnóstica com exames laboratoriais, eletrofisiológicos e de imagens deve ter seus achados validados com base no exame clínico e na história. O tratamento é fundamentado no controle dos sintomas e de suas repercussões físicas e psicossociais e na restauração da funcionalidade das estruturas regionais.

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“…In this context, muscle fatigue is an important condition that compromises sensoriomotor integration and, therefore, postural control. The fatigue of postural muscles, such as the lumbar trunk extensors, may occur in many labor conditions demanding high tension in this muscle group [7][8][9][10]. Such tension represents an important compromising factor of the spine's alignment and stability, inducing lumbar discomfort or pain [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Trunk Extensor Muscles Fatigue on the Postural Control and Sensorimotor Integration

Rocha

Pirôpo

Passos

et al. 2017

JFMK

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This study aimed to investigate the effect of trunk extensor muscles fatigue, through a submaximum and time-limited isometric task, on the postural control and sensorimotor integration of young healthy adults. Previously and after a submaximum and time-limited isometric fatigue protocol of trunk extension muscles, 30 s stabilometric recordings were taken in both conditions: eyes opened and closed. The center of pressure (CoP) displacement in the anteroposterior (AP) and mediolateral (ML) directions, as well as the total displacement (TD) of CoP were analyzed from the recordings with both conditions (eyes opened and closed) and moments (PRE and POST fatigue protocol). Additionally, the Romberg Index was calculated for CoP displacement in the AP and ML directions, as well as for TD PRE and POST fatigue protocol. Significant differences between the studied parameters of pre-and post-fatigue protocol were not observed. The applied fatigue protocol was not able to modify the postural control, as well as the capacity of integrating sensorial information in the absence of vision, of young healthy subjects. These results indicate that proprioceptive information remains reliable after the used fatigue protocol, allowing subjects to keep a satisfactory straight posture.

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The Loads on the Lumbar Spine during Work at an Assembly Line

Cited by 31 publications

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Expectations, perceptions, and physiotherapy predict prolonged sick leave in subacute low back pain

Expectations, perceptions, and physiotherapy predict prolonged sick leave in subacute low back pain

Lombalgia

Influence of Trunk Extensor Muscles Fatigue on the Postural Control and Sensorimotor Integration

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