Marijke Hopman-Rock

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PURPOSE To review recently published studies on the reproducibility, validity, and feasibility of motion sensors used to assess physical activity in healthy children and adolescents (2-18 yr). METHODS On October 2004, a systematic literature search in PubMed, EMBASE, and PsycINFO was performed. This search has been updated on October 2007. In this update,(More)
OBJECTIVE To examine the effects of aerobic exercise or vitamin B supplementation on cognitive function in older adults with mild cognitive impairment (MCI). DESIGN Randomised placebo-controlled trial. SETTING General community. PARTICIPANTS Community-dwelling adults aged 70-80 with MCI. Interventions : The 152 participants were randomly assigned to(More)
BACKGROUND The health benefits of regular physical activity and exercise have been widely acknowledged. Unfortunately, a decline in physical activity is observed in older adults. Knowledge of the determinants of physical activity (unstructured activity incorporated in daily life) and exercise (structured, planned and repetitive activities) is needed to(More)
This study examined built environmental correlates of children's walking and cycling behavior. Four hundred and forty-eight children from 10 Dutch neighborhoods completed a seven-day physical activity diary in which the number of walking and cycling trips for transportation, to school, and for recreation were assessed. The associations between observed(More)
BACKGROUND The daily television program 'the Netherlands on the Move' (NOM-tv), which primarily targets people aged over 55 (estimated Dutch 55+ population: 4 million), was designed as part of a national campaign for promoting physical activity. The aim of the study was to identify the determinants of exercise participation and viewing NOM-tv. METHODS The(More)
BACKGROUND AND OBJECTIVES To review the clinimetric quality of motion sensors used to assess physical activity in healthy children and adolescents (2-18 years). METHODS A systematic literature search was performed in PubMed, Embase, and SpycINFO. The clinimetric quality of two pedometers (Digi-Walker, Pedoboy), four one-dimensional accelerometers (LSI,(More)
This study examines the quality of life (QOL) of community living elderly people aged 55-74 with chronic, episodic or sporadic pain in the hip or knee and of a reference group without pain (total n=306). Firstly, it was hypothesized that the experienced QOL is lower in people with more chronic pain. Secondly, the potential mediating and moderating roles of(More)
OBJECTIVE Evaluation of a self-management program for patients with osteoarthritis (OA) of the hip or knee. The program, which consisted of 6 weekly sessions of 2 hours, included health education by a peer and physical exercises taught by a physical therapist. METHODS Randomized controlled trial. Inclusion criteria were diagnosis of OA of the hip or knee(More)
BACKGROUND In recent years, many tailored lifestyle counseling programs have become available through the Internet. Previous research into such programs has shown selective enrollment of relatively healthy people. However, because of the known dose-response relationship between the intensity and frequency of counseling and the behavior change outcomes,(More)
OBJECTIVE To assess in a primary healthcare setting the efficacy of a self-management program in middle-aged patients with osteoarthritis (OA). METHODS This was a 2-group randomized controlled trial, with 273 patients aged 40 to 60 years with OA of the hip(s) and/or knee(s). The experimental intervention was compared with care-as-usual. Treatments and(More)