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In a randomized, observer-blinded trial, the effectiveness of 3-month high-intensity training (HIT) of the isolated lumbar extensors was compared to low-intensity training (LIT). Eighty-one workers with nonspecific low back pain longer than 12 weeks were randomly assigned to either of the two training programs. Training sessions were performed on a modified(More)
OBJECTIVE To investigate the association between the child-care environment and physical activity of 2- and 3-year-olds. Based on an ecological view of environmental influences on health behavior, we hypothesized that the social and physical environment, as well as child characteristics (age and gender), would show independent and interactive effects on(More)
We studied the contributions of parental fruit and vegetable (F&V) consumption, availability and accessibility of F&V in the home, exposure to F&V, and habit, in addition to psychosocial factors, in explaining F&V consumption in 4-12-year-old children. Furthermore, we looked for effect modification by ethnicity and gender. Children's parents (n = 1739)(More)
OBJECTIVE To examine whether smoking onset in young adolescents is predicted by peer or parental smoking. DESIGN Longitudinal design with one pretest and one follow-up at 12 months. SETTING Schools in Finland, Denmark, the Netherlands, the United Kingdom, Spain and Portugal. PARTICIPANTS 7102 randomly selected adolescents from six countries. Mean age(More)
OBJECTIVES A randomized controlled trial was conducted on the effects of emotion-oriented care on professional caregivers in homes for elderly persons. Emotion-oriented care is used in the care for cognitively impaired elderly persons and is mainly based on the validation approach. METHODS Sixteen homes for the aged were randomly allocated to an(More)
To our knowledge, no studies have analyzed the influence of annual audit and feedback on the prevalence rates of malnutrition. This study analyzes the trend of malnutrition prevalence rates between 2004 and 2007 and the effects of previous audits and feedback from the annual Dutch National Prevalence Measurement of Care Problems (LPZ) and the effect of the(More)
BACKGROUND Large discrepancies between people's intention to eat a healthy diet and actual dietary behavior indicate that motivation is not a sufficient instigator for healthy behavior. Research efforts to decrease this 'intention - behavior gap' have centered on aspects of self-regulation, most importantly self-regulatory planning. Most studies on the(More)
BACKGROUND Not much is known about how people in the Netherlands respond to electronic cigarettes (e-cigarettes); how many know about them, which people try them, keep using them and why, and what are changes over time regarding awareness and use? METHODS We used samples of smokers aged 15 years and older from 2008 (n=1820), 2010 (n=1702), 2013 (n=1530),(More)
OBJECTIVES This study aims to identify the role of self-efficacy, recovery self-efficacy, and preparatory planning with regard to short-term smoking relapse. We also assessed whether the importance of these variables differed for smokers quitting individually and without help (self-quitters) and smokers quitting with the help of a smoking cessation course(More)
BACKGROUND Adherence to Internet-delivered lifestyle interventions using multiple tailoring is suboptimal. Therefore, it is essential to invest in proactive strategies, such as periodic email prompts, to boost re-use of the intervention. OBJECTIVE This study investigated the influence of content and timing of a single email prompt on re-use of an(More)