ObjectiveTo investigate whether duration of knee symptoms influenced the magnitude of the effect of exercise therapy compared to non-exercise control interventions on pain and physical function in people with knee osteoarthritis (OA).MethodWe undertook an individual participant data (IPD) meta-analysis utilising IPD stored within the OA Trial Bank from randomised controlled trials (RCTs) comparing exercise to non-exercise control interventions among people with knee OA. IPD from RCTs were analysed to determine the treatment effect by considering both study-level and individual-level covariates in the multilevel regression model. To estimate the interaction effect (i.e., treatment x duration of symptoms (dichotomised)), on self-reported pain or physical function (standardised to 0–100 scale), a one-stage multilevel regression model was applied.ResultsWe included IPD from 1767 participants with knee OA from 10 RCTs. Significant interaction effects between the study arm and symptom duration (≤1 year vs >1 year, and ≤2 years vs>2 years) were found for short- (∼3 months) (Mean Difference (MD) −3.57, 95%CI −6.76 to −0.38 and −4.12, 95% CI-6.58 to −1.66, respectively) and long-term (∼12 months) pain outcomes (MD −8.33, 95%CI −12.51 to −4.15 and −8.00, 95%CI −11.21 to −4.80, respectively), and long-term function outcomes (MD −5.46, 95%CI −9.22 to −1.70 and −4.56 95%CI −7.33 to-1.80, respectively).ConclusionsThis IPD meta-analysis demonstrated that people with a relatively short symptom duration benefit more from therapeutic exercise than those with a longer symptom duration. Therefore, there seems to be a window of opportunity to target therapeutic exercise in knee OA.
Het boek ‘Create Health Ways of Working: Insights from ten eHealth innovation research projects’ presenteert inzichten uit het meta-onderzoeksproject ‘Create & Health Innovation WAys of Working Analysis’, ook wel CHIWAWA genoemd. Binnen dit meta-onderzoeksproject inventariseerden onderzoekers van de Hogeschool Utrecht (Lectoraat Onderzoekend Vermogen en Lectoraat Co-design) het gebruik van creatieve manieren van werken bij innovatieprocessen in de zorg, waarvoor zij tien onderzoeksprojecten van Nederlandse kennisinstellingen volgende in de periode 2018 – 2022. Deze tien onderzoeksprojecten en het meta-onderzoek waren onderdeel van het ZonMw-programma Create Health. Het boek presenteert case-portretten van de tien onderzoeksprojecten naar eHealth innovatie die zich concentreerden rondom de thema’s dementie, eenzaamheid en overgewicht. Vervolgens geeft het boek verdieping met betrekking tot de creatieve manieren van werken in de tien Create Health-onderzoeksprojecten, begrip van relationele processen bij het creëren van kennisuitwisseling en zicht op de impact die een dergelijke samenwerking heeft op de zorg- en welzijnssector en op de creatieve industrie. Het boek bevat aanbevelingen voor toekomstige onderzoeksconsortia, financiers en de praktijk (creatieve industrie, zorgsector en doelgroep) en sluit af met de beschrijving van een tool die gebaseerd is op het Research Pathway Model, dat als instrument gebruikt kan worden om het gesprek tussen stakeholders van innovatieprocessen in de zorg te ondersteunen.
The metabolic syndrome (MetS) comprises cardiometabolic risk factors frequently found in individuals with obesity. Guidelines to prevent or reverse MetS suggest limiting fat intake, however, lowering carbohydrate intake has gained attention too. The aim for this review was to determine to what extent either weight loss, reduction in caloric intake, or changes in macronutrient intake contribute to improvement in markers of MetS in persons with obesity without cardiometabolic disease. A meta-analysis was performed across a spectrum of studies applying low-carbohydrate (LC) and low-fat (LF) diets. PubMed searches yielded 17 articles describing 12 separate intervention studies assessing changes in MetS markers of persons with obesity assigned to LC (<40% energy from carbohydrates) or LF (<30% energy from fat) diets. Both diets could lead to weight loss and improve markers of MetS. Meta-regression revealed that weight loss most efficaciously reduced fasting glucose levels independent of macronutrient intake at the end of the study. Actual carbohydrate intake and actual fat intake at the end of the study, but not the percent changes in intake of these macronutrients, improved diastolic blood pressure and circulating triglyceride levels, without an effect of weight loss. The homeostatic model assessment of insulin resistance improved with both diets, whereas high-density lipoprotein cholesterol only improved in the LC diet, both irrespective of aforementioned factors. Remarkably, changes in caloric intake did not play a primary role in altering MetS markers. Taken together, these data suggest that, beyond the general effects of the LC and LF diet categories to improve MetS markers, there are also specific roles for weight loss, LC and HF intake, but not reduced caloric intake, that improve markers of MetS irrespective of diet categorization. On the basis of the results from this meta-analysis, guidelines to prevent MetS may need to be re-evaluated.
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