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Construct validity of functional capacity tests in healthy workers

Background: Functional Capacity (FC) is a multidimensional construct within the activity domain of the International Classification of Functioning, Disability and Health framework (ICF). Functional capacity evaluations (FCEs) are assessments of work-related FC. The extent to which these work-related FC tests are associated to bio-, psycho-, or social factors is unknown. The aims of this study were to test relationships between FC tests and other ICF factors in a sample of healthy workers, and to determine the amount of statistical variance in FC tests that can be explained by these factors. Methods: A cross sectional study. The sample was comprised of 403 healthy workers who completed material handling FC tests (lifting low, overhead lifting, and carrying) and static work FC tests (overhead working and standing forward bend). The explainable variables were; six muscle strength tests; aerobic capacity test; and questionnaires regarding personal factors (age, gender, body height, body weight, and education), psychological factors (mental health, vitality, and general health perceptions), and social factors (perception of work, physical workloads, sport-, leisure time-, and work-index). A priori construct validity hypotheses were formulated and analyzed by means of correlation coefficients and regression analyses. Results: Moderate correlations were detected between material handling FC tests and muscle strength, gender, body weight, and body height. As for static work FC tests; overhead working correlated fair with aerobic capacity and handgrip strength, and low with the sport-index and perception of work. For standing forward bend FC test, all hypotheses were rejected. The regression model revealed that 61% to 62% of material handling FC tests were explained by physical factors. Five to 15% of static work FC tests were explained by physical and social factors. Conclusions: The current study revealed that, in a sample of healthy workers, material handling FC tests were related to physical factors but not to the psychosocial factors measured in this study. The construct of static work FC tests remained largely unexplained.

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Weight management and determinants of weight change in patients with coronary artery disease

OBJECTIVE: To study the effects of a comprehensive secondary prevention programme on weight loss and to identify determinants of weight change in patients with coronary artery disease (CAD).METHODS: We performed a secondary analysis focusing on the subgroup of overweight CAD patients (BMI ≥27 kg/m2) in the Randomised Evaluation of Secondary Prevention by Outpatient Nurse SpEcialists-2 (RESPONSE-2) multicentre randomised trial. We evaluated weight change from baseline to 12-month follow-up; multivariable logistic regression with backward elimination was used to identify determinants of weight change.RESULTS: Intervention patients (n=280) lost significantly more weight than control patients (n=257) (-2.4±7.1 kg vs -0.2±4.6 kg; p<0.001). Individual weight change varied widely, with weight gain (≥1.0 kg) occurring in 36% of interventions versus 41% controls (p=0.21). In the intervention group, weight loss of ≥5% was associated with higher age (OR 2.94), lower educational level (OR 1.91), non-smoking status (OR 2.92), motivation to start with weight loss directly after the baseline visit (OR 2.31) and weight loss programme participation (OR 3.33), whereas weight gain (≥1 kg) was associated with smoking cessation ≤6 months before or during hospitalisation (OR 3.21), non-Caucasian ethnicity (OR 2.77), smoking at baseline (OR 2.70), lower age (<65 years) (OR 1.47) and weight loss programme participation (OR 0.59).CONCLUSION: The comprehensive secondary prevention programme was, on average, effective in achieving weight loss. However, wide variation was observed. As weight gain was observed in over one in three participants in both groups, prevention of weight gain may be as important as attempts to lose weight.TRIAL REGISTRATION NUMBER: NTR3937.

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Weight management and determinants of weight change in patients with coronary artery disease
product

Weight management and determinants of weight change in patients with coronary artery disease

Objective: To study the effects of a comprehensive secondary prevention programme on weight loss and to identify determinants of weight change in patients with coronary artery disease (CAD). Methods: We performed a secondary analysis focusing on the subgroup of overweight CAD patients (BMI ≥27 kg/m2) in the Randomised Evaluation of Secondary Prevention by Outpatient Nurse SpEcialists-2 (RESPONSE-2) multicentre randomised trial. We evaluated weight change from baseline to 12-month follow-up; multivariable logistic regression with backward elimination was used to identify determinants of weight change. Results: Intervention patients (n=280) lost significantly more weight than control patients (n=257) (-2.4±7.1 kg vs -0.2±4.6 kg; p<0.001). Individual weight change varied widely, with weight gain (≥1.0 kg) occurring in 36% of interventions versus 41% controls (p=0.21). In the intervention group, weight loss of ≥5% was associated with higher age (OR 2.94), lower educational level (OR 1.91), non-smoking status (OR 2.92), motivation to start with weight loss directly after the baseline visit (OR 2.31) and weight loss programme participation (OR 3.33), whereas weight gain (≥1 kg) was associated with smoking cessation ≤6 months before or during hospitalisation (OR 3.21), non-Caucasian ethnicity (OR 2.77), smoking at baseline (OR 2.70), lower age (<65 years) (OR 1.47) and weight loss programme participation (OR 0.59). Conclusion: The comprehensive secondary prevention programme was, on average, effective in achieving weight loss. However, wide variation was observed. As weight gain was observed in over one in three participants in both groups, prevention of weight gain may be as important as attempts to lose weight.

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Projects 2

project

PRESCHOOL@HEALTHYWEIGHT

In de voorschool worden pedagogisch medewerkers (PMers) steeds vaker geconfronteerd met overgewicht bij kinderen van 2,5 tot 4 jaar. De PMer is getraind in het ondersteunen van de ontwikkeling en opvoeding van het kind. PMers zijn niet opgeleid voor leefstijladvisering. Ongezonde voeding en inactiviteit zijn de belangrijkste oorzaken van overgewicht. Overgewicht komt op jonge leeftijd al meer voor bij lagere sociaaleconomische en etnische groepen. De gezondheidsverschillen nemen hierdoor toe. PMers geven aan dat zij zich niet bekwaam voelen om verantwoordelijk te zijn voor de gezonde keuzes op de voorschool als ook in de advisering naar ouders toe. De centrale vragen in dit project zijn: Wat heeft de PMer in de voorschool nodig in kennis, vaardigheden en attitude om het handelingsrepertoire tav leefstijladvisering aan alle kinderen van 2,5 tot 4 jaar en ouders met diverse sociaaleconomische en cultureel-etnische achtergronden te professionaliseren. Wat is het effect van het handelen van de PMer op de gezonde (gewichts)ontwikkeling van het kind? Het onderzoek is een gerichte interventiestudie met voor- en nametingen bij PMers, kinderen en ouders. De interventie wordt bij een deel van de PMers uitgevoerd en vergeleken met een controlegroep. Bij kinderen worden fysieke- en gedragsmetingen uitgevoerd. Eindpunten zijn het vertrouwen in leefstijladvisering door PMers en ontwikkelingstrends in gewicht bij kinderen. Fases van het projectplan: I. nulmeting en interventie bij PMers; II. nulmeting bij kinderen en interventie door PMers; III. effectmeting interventie bij PMers en kinderen; IV. ontwikkeling competentieprofiel leefstijladvisering voor PMers. Het PS@HW consortium olv de Hogeschool van Amsterdam, Impuls Kinderopvang, Brancheorganisatie Kinderopvang Amsterdam, Nederlands Jeugdinstituut, RIVM Centrum voor Gezond Leven, VU medisch centrum, HvA-Speerpunt Urban Vitality en Sarphati Amsterdam pakt dit op. Dit project beoogt het ontwikkelen van de HBO competentie leefstijladvisering voor PMers van de voorscholen die kinderen bereiken met een achterstand, voor een gezonde (gewichts)ontwikkeling en het terugdringen van gezondheidsverschillen.

Finished
project

Smartcase - Sustainable Michael Addition Resin Technology for Coatings, Adhesives, Sealants and Elastomers

Thermoset materials find use in almost all industrial sectors, especially where lightweight, stiffness, resistance and dimensional stability are key performance requirements. However, traditional thermosets suffer from several drawbacks: they are made of fossil-based non-reversible polymers and toxic monomers; more importantly, thermosetting materials are virtually neither recyclable nor reprocessable, due to their crosslinked microstructure. Currently, most thermoset materials are incinerated or accumulated in landfills at the end of their life. Landfill waste degrades to liquids known as landfill leachates that lead to health and environmental problems. A significant part of these wastes originate from thermoset materials used in paints, coatings, sealants and adhesives applied as a thin film to all sorts of surfaces. These unrecyclable materials contribute to nano- and microplastic formation. Despite many efforts in the past years in this context, substantial further developments are required. Production of thermosets from biobased feedstocks using safe and sustainable-by-design approaches is therefore crucial to address the well-being of people and to have a healthy planet.SMARTCASE aims to develop safe and circular carbohydrate-derived reactive polyester resins for coatings, adhesives, sealants and elastomers for application in the building and interior sectors. The new two-component (‘2K’) formulations are designed to replace currently used fossil-based epoxy and urethane resins by biobased and GHS-label-friendly alternatives. This not only improves the safety of workers and end-users of these materials, but also reduces the dependency on fossil resources and facilitates the transition towards abundantly available biobased raw materials.A new class of biobased polyesters resins and thermosets will be designed in SMARTCASE using safe and sustainable by design approaches allowing for more sustainable and feasible end-of-life options. Biobased polyesters in general meet the requirements of circularity, as they can be efficiently recycled back to their monomers at end-of-life. Accordingly, the recycling and degradation behavior of the developed formulations under thermal, mechanical and chemical conditions and their biodegradation will be studied. Hence, the output of the project contributes to the main goals of the NGF BioBased Circular program.The project follows a value-cycle approach with a multi-disciplinary and balanced consortium of industrial representatives from every part of the value chain, from carbohydrate feedstock suppliers to resin formulators and end users. This enables a system innovation instead of a (single) product innovation. The following results are expected within 10 years (mostly by the end of the project ): - Sustainable feedstock platform for novel biobased (BB) platform chemicals- Access to novel monomers and building blocks- Access to safe and novel polyester-based resin components- Access to high performance, safe and circular thermoset formulations- Scale-up of the best thermoset formulations- Validated performance of novel thermoset formulations in industrial applications- Sustainable and circular-by-design thermoset formulations with defined end-of-life solutions - Data on LCA, TEA, toxicity and sustainability- Engaged stakeholders and effective dissemination of project outcomes By ensuring these results are implemented by industrial partners both during and after the project, they will benefit not only stakeholders, chemical industries, and consortium partners but also the general public.

Ongoing