Freek J. B. Lötters

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OBJECTIVE The purpose of this prospective cohort study with 1-year follow-up was to determine prognostic factors for duration of sickness absence due to musculoskeletal disorders. METHODS Workers were included when on sickness absence of 2 to 6 weeks due to musculoskeletal disorders. A self-administered questionnaire was used to collect personal and(More)
OBJECTIVES This study aimed at developing a model for determining the work-relatedness of low-back pain for a worker with low-back pain using both a personal exposure profile for well-established risk factors and the probability of low-back pain if the worker were unexposed to these factors. METHODS After a systematic review of the literature, the pooled(More)
BACKGROUND The psychological factors of depressive symptoms, fear-avoidance, and self-efficacy are deemed to be important in the work disability process. However, the prognostic value of these factors for time on benefit is not well understood. AIMS To analyse the prognostic value of psychological factors for the number of days on total compensation(More)
The present study was designed to investigate the relationship between muscle performance and electromyogram (EMG) parameters of the trunk extensor muscles in the development of fatigue. Nine subjects performed continuous isometric trunk extensions at 25% and 40% maximal voluntary contraction. The EMG signals of the longissimus thoracis, iliocostalis(More)
BACKGROUND Children from migrant origin are at higher risk for overweight and obesity. As limited physical activity is a key factor in this overweight and obesity risk, in general, the aim of this study is to assess to what degree children from migrant and native Dutch origin differ with regard to levels of physical activity and to determine which home(More)
OBJECT The authors conducted a study to compare the efficacies of three nonsurgical treatment strategies in patients with sciatica. Their hypothesis was that bed rest, physiotherapy, and continuation of activities of daily living (ADLs) (control treatment) are each of equivalent efficacy. METHODS This randomized controlled trial was designed for(More)
OBJECTIVES This prospective cohort study quantified the reduced productivity of workers on full duty after sickness absence from a musculoskeletal disorder and determined the effect of health parameters such as perceived pain, functional disability, and general health on reduced productivity. METHODS Workers were included who were returning to work from(More)
Osteoporosis has become a major health concern, carrying a substantial burden in terms of health outcomes and costs. We constructed a model to quantify the potential effect of an additional intake of calcium from dairy foods on the risk of osteoporotic fracture, taking a health economics perspective. This study seeks, first, to estimate the impact of an(More)
STUDY DESIGN Prospective cohort study with 1-year follow-up. OBJECTIVES The purpose of this study is to describe the improvement in several health outcomes during sick leave resulting from musculoskeletal disorders and in the first months after return to work (RTW), and to evaluate the personal and work-related factors associated with these health(More)
An important condition for independent living is having a well-functioning social network to provide support. An Integrated Neighbourhood Approach (INA) creates a supportive environment for the frail elderly, offering them tailored care in their local context that allows them to improve self-management abilities and well-being. The purpose of our research(More)