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Sedentary behavior and cancer-an umbrella review and meta-analysis.
Hermelink, R, Leitzmann, MF, Markozannes, G, Tsilidis, K, Pukrop, T, Berger, F, Baurecht, H, Jochem, C
European journal of epidemiology. 2022;37(5):447-460
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Globally, cancer is one of the leading causes of death. In modern day-to-day life, sedentary behaviour is prevalent, with adults spending an average of 8.2 hours without any physical activity. It is believed that sedentary behaviour plays a significant role in the increase in all-cause mortality, obesity, chronic diseases, and cancer risk. The purpose of this review and meta-analysis was to examine previous studies that reported associations between sedentary behaviour and cancer incidence and all-cancer mortality. A total of 14 meta-analyses were included in the study, and the strength of the evidence for each association was rated. A significant association was found between sedentary behaviour and cancer incidence across various cancer sites, including ovarian, endometrial, colon, breast, rectal, and prostate cancers. All-cancer mortality also showed positively significant associations with sedentary behaviour. There is a need for further research to evaluate the mechanisms associated with sedentary behaviour and the development of cancer at various sites. However, the results of this study can be used by healthcare professionals to better understand the importance of recommending physical activity and other therapeutic strategies.
Abstract
Several systematic reviews and meta-analyses have summarized the association between sedentary behavior (SB) and cancer. However, the level of evidence and the potential for risk of bias remains unclear. This umbrella review summarized the current data on SB in relation to cancer incidence and mortality, with a particular emphasis on assessing the risk of bias. We searched PubMed, Web of Science and Cochrane Database for systematic reviews and meta-analyses on the association between SB and cancer incidence and mortality. We also searched for recent observational studies not yet included in existing meta-analyses. We re-calculated summary risk estimates for cancer incidence and mortality using random effects models. We included 14 meta-analyses covering 17 different cancer sites from 77 original studies. We found that high SB levels increase the risk for developing ovarian, endometrial, colon, breast, prostate, and rectal cancers, with relative risks of 1.29 (95% confidence interval (CI) = 1.08-1.56), 1.29 (95% CI = 1.16-1.45), 1.25 (95% CI = 1.16-1.33), 1.08 (95% CI = 1.04-1.11), 1.08 (95% CI = 1.00-1.17), and 1.07 (95% CI = 1.01-1.12), respectively. Also, we found an increased risk of cancer mortality of 1.18 (95% CI = 1.09-1.26). Most associations between SB and specific cancer sites were supported by a "suggestive" level of evidence. High levels of SB are associated with increased risk of several types of cancer and increased cancer mortality risk.
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Quantifying dementia prevention potential in the FINGER randomized controlled trial using the LIBRA prevention index.
Deckers, K, Köhler, S, Ngandu, T, Antikainen, R, Laatikainen, T, Soininen, H, Strandberg, T, Verhey, F, Kivipelto, M, Solomon, A
Alzheimer's & dementia : the journal of the Alzheimer's Association. 2021;17(7):1205-1212
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Lifestyle interventions are being increasingly recognised to delay or prevent the onset of dementia. Scientific research targeting one lifestyle factor has continually failed to show any benefits and therefore interventions targeting several lifestyle factors, before disease onset may be more beneficial. The Lifestyle for BRAin Health (LIBRA) score is a tool which assesses peoples risk of dementia based on several lifestyle factors and this trial used this tool to determine the dementia risk of individuals who entered The Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER). This study was the first randomised control trial showing benefits to cognition following multi-domain lifestyle interventions. The results showed that higher LIBRA score at the start of the trial was associated with poorer brain function over time and that the multi-domain lifestyle intervention was effective at decreasing LIBRA score, regardless of the risk at the start of the trial. It was concluded that LIBRA may be a useful tool to determine risk of dementia and that the FINGER intervention was of benefit to individuals regardless of their risk of dementia.
Abstract
INTRODUCTION Individuals in early dementia prevention trials may differ in how much they benefit from interventions depending on their initial risk level. Additionally, modifiable dementia risk scores might be used as surrogate/intermediate outcomes. METHODS In the Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER), we investigated in post hoc analyses (N = 1207) whether the cognitive benefits of the 2-year multi-domain lifestyle intervention differed by baseline dementia risk measured with the "LIfestyle for BRAin Health" (LIBRA) score. We also investigated intervention effects on change in LIBRA score over time. RESULTS Overall, higher baseline LIBRA was related to less cognitive improvement over time. This association did not differ between the intervention and control groups. The intervention was effective in decreasing LIBRA scores over time, regardless of baseline demographics or cognition. DISCUSSION The cognitive benefit of the FINGER intervention was similar across individuals with different LIBRA scores at baseline. Furthermore, LIBRA may be useful as a surrogate/intermediate endpoint and surveillance tool to monitor intervention success during trial execution.
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Type 2 diabetes preventive effects with a 12-months sardine-enriched diet in elderly population with prediabetes: An interventional, randomized and controlled trial.
Díaz-Rizzolo, DA, Serra, A, Colungo, C, Sala-Vila, A, Sisó-Almirall, A, Gomis, R
Clinical nutrition (Edinburgh, Scotland). 2021;40(5):2587-2598
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Older people have a higher risk of developing Type 2 diabetes (T2D) due to the possibility of β-cell dysfunction due to ageing. Sardines are believed to be protective against the development of T2D. Therefore, this randomised controlled trial evaluated the preventative effects of a sardine-rich diet in elderly prediabetic patients. For one year, both the sardine group (SG) and control group (CG) followed a T2D prevention diet, with the SG consuming 200 g of sardines each week. Both groups improved body weight, BMI, waist and hip circumference, and body composition. Taurine, EPA, DHA, omega-3 fatty acid, calcium, iodine, zinc, phosphorous and fluoride, vitamin B12 and D, and lycopene and tocopherols were found to be higher in the SG than the CG, indicating the sardines were protective against T2D. In SG, HDL cholesterol and adiponectin levels were significantly increased, and blood pressure and triglycerides were decreased, signalling a reduced risk of T2D and cardiovascular disease. In addition, SG showed a reduction in HOMA-IR and an Omega-3 fatty acid was substituted for Omega-6 fatty acids in the erythrocyte membrane, suggesting a reduced risk of T2D. Further robust research is required to confirm the protective effect of a sardine-enriched diet against T2D. It may be useful to healthcare providers to comprehend how a sardine-enriched diet could improve obesity, T2D and CVD markers in pre-diabetic elderly patients.
Abstract
BACKGROUND Fish could play a role in preventing type 2 diabetes (T2D) but there has been little specification about the type of fish and the preventive mechanism involved in its health claim. The sardine is a source of omega-3 and taurine that, in isolation or in synergy, would produce T2D-delaying through different molecular mechanism. HYPOTHESIS The consumption of twice a week of sardine, during one year would reduce T2D-developing risk in a population with prediabetes (preDM) and old age. DESIGN 152 subjects with fasting glucose between 100-124 mg/dL aged ≥65 yo were recruited from three primary care centers in Barcelona and were randomly distributed among two interventional groups: control group (CG) and sardine group (SG). Both groups received same T2D-prevention nutritional during a year but only SG had to add 200 g of sardine per week. All variables were collected before to start and at the end of the diet. (ClinicalTrials.gov: NCT03557541). RESULTS 152 people were randomized into CG (n=77) and SG (n=75) with 18 and 12 drop outs respectively. Subjects in SG, significantly compared to CG, decreased percentage classified-individuals in a very high risk group to develop T2D according to FINDRISC (p=0.035). In addition to increasing HDL-cholesterol and adiponectin and decreasing triglycerides (p<0.05) and blood pressure (<0.05), SG showed a lower HOMA-IR (p=0.032). The consumption of sardine characteristics nutrients as omega-3, EPA and DHA, vitamin D, fluorine and taurine were higher for SG (p<0.05). These results agreed with the increased of taurine, fatty acid (FA) omega-3 and bile acids circulating metabolites (p<0.05). Changes erythrocyte membrane FA were detected only in SG with a decrease of 5 omega-6 FA (p<0.001) and an increase of 3 omega-3 FA types (p<0.001). CONCLUSION We conclude that a year T2D-prevention diet with sardine supplementation has a greater protective effect against developing T2D and CV events.
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Effects of Caffeine Supplementation on Power Performance in a Flywheel Device: A Randomised, Double-Blind Cross-Over Study.
Castillo, D, Domínguez, R, Rodríguez-Fernández, A, Raya-González, J
Nutrients. 2019;11(2)
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Caffeine has been shown to have a positive effect on resistance performance but few studies have specifically examined the effects of caffeine on power outcomes. Modern athletic training programmes have shifted focus from concentric strength training to eccentric resistance training, and the flywheel paradigm has been found to be an effective strategy to improve athletic performance and prevent injury. The aim of this randomised, double-blind study was to assess the effects of caffeine on in lower body power outcomes in resistance exercise utilising a flywheel device. Twenty healthy, active men were randomised to receive either a caffeine or placebo supplement 45 minutes before completing eight repetitions of flywheel half-squat exercise at four differential loads to assess both mean power and peak power values. Participants attended test sessions four times over two consecutive weeks with at least 72 hours between sessions. This study found that compared with placebo, caffeine supplementation improved power outcomes significantly in both mean and peak power outcomes with respect to both concentric and eccentric movement phases. Based on these results, the authors conclude that the application of 6 mg/kg of caffeine may be considered to maximise physical performance in sports involving high demands of resistance.
Abstract
Despite the demonstrated evidence of the importance of eccentric contractions in sports performance, no research has evaluated the ergogenic effects of caffeine on this type of contraction means during flywheel exercises. Therefore, the aims of the present study were to compare the power outcomes, using different inertial loads, between caffeine and placebo conditions. Twenty-four young, healthy, and active men (age: 22.5 ± 4.8 years) took part in the study. A crossed, randomised double-blind design was used to analyse the effects of caffeine on lower limb power outcomes during a flywheel half-squat exercise. Participants completed four sets of eight all-out repetitions with a fixed three-minutes rest interval, and each set was performed using different inertial loads (i.e., 0.025, 0.050, 0.075 and 0.100 kg·m-2). Both the mean power (MP) and peak power (PP) in concentric (CON) and eccentric (ECC) movement phases at each inertial load were recorded after participants were administered either a caffeine supplement (6 mg·kg-1) or placebo (sucrose). Participants receiving a caffeine supplementation demonstrated improvements versus the placebo in total MP (MPtotal), as well as MP in CON phase (MPcon) and in ECC phase (MPecc) at each inertial load (22.68 to 26.53%; p < 0.01, effect size (ES) = 0.89⁻1.40). In addition, greater improvements with caffeine ingestion were obtained with respect to the placebo condition (18.79 to 24.98%; p < 0.01, ES = 1.03⁻1.40) in total PP (PPtotal), as well as PP in CON phase (PPcon) and in ECC phase (PPecc) at each inertial load. Thus, the supplementation of 6 mg·kg-1 caffeine may be considered to maximise on-field physical performance in those sports characterised by high demands of resistance.
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Early and long period follow-up results of low glycemic index diet for migraine prophylaxis.
Evcili, G, Utku, U, Öğün, MN, Özdemir, G
Agri : Agri (Algoloji) Dernegi'nin Yayin organidir = The journal of the Turkish Society of Algology. 2018;30(1):8-11
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Environmental factors such as diet and lifestyle are known to play a role in migraine. Particular foods can act as direct triggers for individuals. Also, how the individual’s diet affects their blood sugar levels may be key to the frequency and severity of their attacks. Foods that are said to have low glycaemic index (GI), i.e. they are thought to raise blood sugar levels more slowly, may help with the management of migraine. In this randomised control trial, migraine patients were randomly allocated to either a low GI diet group or a medication group. Both groups were given tips for lifestyle changes and the diet group was also advised to eat a low GI diet and avoid high GI foods, while the medication group participants kept using their preventive medication. The frequency and severity of migraine attacks was assessed before the start of the study and at 1 month and 3 months after starting the low GI diet. At 3 months, the frequency and severity of attacks reduced significantly in both groups and the low GI diet was noted to be as effective as the drug treatment. The authors conclude that a low GI diet can be an effective and reliable method to reduce migraine attacks.
Abstract
OBJECTIVES The role of dietary restriction in the management of patients with migraine is still a controversial topic in the headache field. The aim of this study was to evaluate the efficacy of dietary restriction on migraine attacks. METHODS Patients diagnosed with migraine without aura according to the International Classification of Headaches were enrolled. Our study included 350 migraine patients evaluated at the neurology headache outpatient clinic. They were randomly divided into two groups: diet group as the study group and medication group as the control group. We told migraine patients to make lifestyle changes, especially those with low glycemic index in the diet group. On the other hand, propranolol, amitriptyline, flunarizine, and topiramate were used for the prophylaxis in the medication group. The frequency and severity of attacks [using the visual analog scale (VAS)] were recorded before starting dietary restriction and 1 and 3 months after the dietary restriction. RESULTS There were 350 participants in this study. After 3 months, a total of 147 patients (male/female: 17/130, mean age: 34.7±5.9) were evaluated in the diet group. The control group consisted of 147 age- and sex-matched, randomly selected patients with migraine without aura. In the first month after dietary restriction, monthly attack frequency significantly decreased in both groups but not the VAS score. The mean scores of VAS significantly decreased later in the diet group compared with those in the medication group (after 3 months). CONCLUSION The results of the study revealed that low glycemic index diet intake can be an effective and reliable method to reduce migraine attacks.
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Meditation or exercise for preventing acute respiratory infection (MEPARI-2): A randomized controlled trial.
Barrett, B, Hayney, MS, Muller, D, Rakel, D, Brown, R, Zgierska, AE, Barlow, S, Hayer, S, Barnet, JH, Torres, ER, et al
PloS one. 2018;13(6):e0197778
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Susceptibility to acute respiratory infection (ARI), including the common cold and flu, have been shown to be influenced by psychological, social and behavioural factors. Given these previous associations, the aim of this study was to determine the preventive effects of meditation and exercise on ARI illness. This randomised controlled trial allocated 390 participants to one of three parallel groups either receiving 8-week training in mindfulness-based stress reduction (MBSR), 8-week training in moderate intensity exercise or observational control. ARI symptoms were assessed daily and various psychosocial factors were assessed at baseline and 4 times after the intervention. Blood and nasal wash samples were assessed with each ARI episode as well as at baseline, 1-month and 4-month post-intervention. This study found significant reductions in ARI illness incidence, duration and severity for participants in the MBSR group compared with controls. While this was also true for the exercise group, results were not as significant suggesting a slight advantage of mindfulness over exercise. Based on these results, the authors conclude both mindfulness and exercise should be encouraged and further research be conducted to better understand the benefits of these activities in sick populations.
Abstract
BACKGROUND Practice of meditation or exercise may enhance health to protect against acute infectious illness. OBJECTIVE To assess preventive effects of meditation and exercise on acute respiratory infection (ARI) illness. DESIGN Randomized controlled prevention trial with three parallel groups. SETTING Madison, Wisconsin, USA. PARTICIPANTS Community-recruited adults who did not regularly exercise or meditate. METHODS 1) 8-week behavioral training in mindfulness-based stress reduction (MBSR); 2) matched 8-week training in moderate intensity sustained exercise (EX); or 3) observational waitlist control. Training classes occurred in September and October, with weekly ARI surveillance through May. Incidence, duration, and area-under-curve ARI global severity were measured using daily reports on the WURSS-24 during ARI illness. Viruses were identified multiplex PCR. Absenteeism, health care utilization, and psychosocial health self-report assessments were also employed. RESULTS Of 413 participants randomized, 390 completed the trial. In the MBSR group, 74 experienced 112 ARI episodes with 1045 days of ARI illness. Among exercisers, 84 had 120 episodes totaling 1010 illness days. Eighty-two of the controls had 134 episodes with 1210 days of ARI illness. Mean global severity was 315 for MBSR (95% confidence interval 244, 386), 256 (193, 318) for EX, and 336 (268, 403) for controls. A prespecified multivariate zero-inflated regression model suggested reduced incidence for MBSR (p = 0.036) and lower global severity for EX (p = 0.042), compared to control, not quite attaining the p<0.025 prespecified cut-off for null hypothesis rejection. There were 73 ARI-related missed-work days and 22 ARI-related health care visits in the MBSR group, 82 days and 21 visits for exercisers, and 105 days and 24 visits among controls. Viruses were identified in 63 ARI episodes in the MBSR group, compared to 64 for EX and 72 for control. Statistically significant (p<0.05) improvements in general mental health, self-efficacy, mindful attention, sleep quality, perceived stress, and depressive symptoms were observed in the MBSR and/or EX groups, compared to control. CONCLUSIONS Training in mindfulness meditation or exercise may help protect against ARI illness. LIMITATIONS This trial was likely underpowered. TRIAL REGISTRATION Clinicaltrials.gov NCT01654289.
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Dietary and Policy Priorities for Cardiovascular Disease, Diabetes, and Obesity: A Comprehensive Review.
Mozaffarian, D
Circulation. 2016;133(2):187-225
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Diet-related cardiometabolic conditions, such as heart disease and diabetes, pose a significant health and economic burden across the world. In recent years, scientific advances and research have generated enormous insights, yet there remain many controversies and unanswered questions. This extensive review summarizes recent evidence of key-dietary components and their impact on cardiometabolic health. Amongst the topics covered are dietary patterns, food quality and processing, genetics, personalized nutrition, supplements, functional foods and the existing knowledge on selected food groups such as carbohydrates, meat and fats alongside relevant vitamins, minerals and plant compounds. The author highlights how an oversimplified concept of nutrition from previous decades, has led to an array of conflicting advice and undermined the nuanced and complex impact that diet and nutrition can have on the body. Thus in light of the evidence, food-based interventions and dietary patterns are suggested as favourable, with less focus on dietary components in isolation. Throughout the paper, the need for adjunct support to facilitate sustainable health-promoting behaviour changes is recognized. Calling for additional measures to address behaviour change, health systems reforms, targeting socioeconomic inequalities, employing novel technologies, and adequate policymaking. This overview of recent evidence yields a comprehensive source of information, worthwhile reviewing when designing personalised diet plans in support of cardiometabolic health.
Abstract
Suboptimal nutrition is a leading cause of poor health. Nutrition and policy science have advanced rapidly, creating confusion yet also providing powerful opportunities to reduce the adverse health and economic impacts of poor diets. This review considers the history, new evidence, controversies, and corresponding lessons for modern dietary and policy priorities for cardiovascular diseases, obesity, and diabetes mellitus. Major identified themes include the importance of evaluating the full diversity of diet-related risk pathways, not only blood lipids or obesity; focusing on foods and overall diet patterns, rather than single isolated nutrients; recognizing the complex influences of different foods on long-term weight regulation, rather than simply counting calories; and characterizing and implementing evidence-based strategies, including policy approaches, for lifestyle change. Evidence-informed dietary priorities include increased fruits, nonstarchy vegetables, nuts, legumes, fish, vegetable oils, yogurt, and minimally processed whole grains; and fewer red meats, processed (eg, sodium-preserved) meats, and foods rich in refined grains, starch, added sugars, salt, and trans fat. More investigation is needed on the cardiometabolic effects of phenolics, dairy fat, probiotics, fermentation, coffee, tea, cocoa, eggs, specific vegetable and tropical oils, vitamin D, individual fatty acids, and diet-microbiome interactions. Little evidence to date supports the cardiometabolic relevance of other popular priorities: eg, local, organic, grass-fed, farmed/wild, or non-genetically modified. Evidence-based personalized nutrition appears to depend more on nongenetic characteristics (eg, physical activity, abdominal adiposity, gender, socioeconomic status, culture) than genetic factors. Food choices must be strongly supported by clinical behavior change efforts, health systems reforms, novel technologies, and robust policy strategies targeting economic incentives, schools and workplaces, neighborhood environments, and the food system. Scientific advances provide crucial new insights on optimal targets and best practices to reduce the burdens of diet-related cardiometabolic diseases.
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Strategies to improve the implementation of healthy eating, physical activity and obesity prevention policies, practices or programmes within childcare services.
Wolfenden, L, Jones, J, Williams, CM, Finch, M, Wyse, RJ, Kingsland, M, Tzelepis, F, Wiggers, J, Williams, AJ, Seward, K, et al
The Cochrane database of systematic reviews. 2016;10:CD011779
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Population-based approaches to childhood obesity prevention has identified centre-based childcare services as an effective platform for promoting healthy behaviours in children. While many studies have applied various strategies in this setting, a comprehensive review on programme and policy implementation is warranted. The aim of this systematic review was to assess the effectiveness of strategies to improve implementation of programmes by childcare services that promote healthy behaviours for children around diet, physical activity and obesity prevention. Based on the current literature, only 10 trials were identified and the findings were ambiguous. Most trials reported implementation support as beneficial for at least one practice or policy, however the impact was not significant. According to these findings, the authors highlight how little guidance is available for policy makers in this field and conclude that these practices in childcare services are only in the early stages of development.
Abstract
BACKGROUND Despite the existence of effective interventions and best-practice guideline recommendations for childcare services to implement policies, practices and programmes to promote child healthy eating, physical activity and prevent unhealthy weight gain, many services fail to do so. OBJECTIVES The primary aim of the review was to examine the effectiveness of strategies aimed at improving the implementation of policies, practices or programmes by childcare services that promote child healthy eating, physical activity and/or obesity prevention. The secondary aims of the review were to:1. describe the impact of such strategies on childcare service staff knowledge, skills or attitudes;2. describe the cost or cost-effectiveness of such strategies;3. describe any adverse effects of such strategies on childcare services, service staff or children;4. examine the effect of such strategies on child diet, physical activity or weight status. SEARCH METHODS We searched the following electronic databases on 3 August 2015: the Cochrane Central Register of Controlled trials (CENTRAL), MEDLINE, MEDLINE In Process, EMBASE, PsycINFO, ERIC, CINAHL and SCOPUS. We also searched reference lists of included trials, handsearched two international implementation science journals and searched the World Health Organization International Clinical Trials Registry Platform (www.who.int/ictrp/) and ClinicalTrials.gov (www.clinicaltrials.gov). SELECTION CRITERIA We included any study (randomised or non-randomised) with a parallel control group that compared any strategy to improve the implementation of a healthy eating, physical activity or obesity prevention policy, practice or programme by staff of centre-based childcare services to no intervention, 'usual' practice or an alternative strategy. DATA COLLECTION AND ANALYSIS The review authors independently screened abstracts and titles, extracted trial data and assessed risk of bias in pairs; we resolved discrepancies via consensus. Heterogeneity across studies precluded pooling of data and undertaking quantitative assessment via meta-analysis. However, we narratively synthesised the trial findings by describing the effect size of the primary outcome measure for policy or practice implementation (or the median of such measures where a single primary outcome was not stated). MAIN RESULTS We identified 10 trials as eligible and included them in the review. The trials sought to improve the implementation of policies and practices targeting healthy eating (two trials), physical activity (two trials) or both healthy eating and physical activity (six trials). Collectively the implementation strategies tested in the 10 trials included educational materials, educational meetings, audit and feedback, opinion leaders, small incentives or grants, educational outreach visits or academic detailing. A total of 1053 childcare services participated across all trials. Of the 10 trials, eight examined implementation strategies versus a usual practice control and two compared alternative implementation strategies. There was considerable study heterogeneity. We judged all studies as having high risk of bias for at least one domain.It is uncertain whether the strategies tested improved the implementation of policies, practices or programmes that promote child healthy eating, physical activity and/or obesity prevention. No intervention improved the implementation of all policies and practices targeted by the implementation strategies relative to a comparison group. Of the eight trials that compared an implementation strategy to usual practice or a no intervention control, however, seven reported improvements in the implementation of at least one of the targeted policies or practices relative to control. For these trials the effect on the primary implementation outcome was as follows: among the three trials that reported score-based measures of implementation the scores ranged from 1 to 5.1; across four trials reporting the proportion of staff or services implementing a specific policy or practice this ranged from 0% to 9.5%; and in three trials reporting the time (per day or week) staff or services spent implementing a policy or practice this ranged from 4.3 minutes to 7.7 minutes. The review findings also indicate that is it uncertain whether such interventions improve childcare service staff knowledge or attitudes (two trials), child physical activity (two trials), child weight status (two trials) or child diet (one trial). None of the included trials reported on the cost or cost-effectiveness of the intervention. One trial assessed the adverse effects of a physical activity intervention and found no difference in rates of child injury between groups. For all review outcomes, we rated the quality of the evidence as very low. The primary limitation of the review was the lack of conventional terminology in implementation science, which may have resulted in potentially relevant studies failing to be identified based on the search terms used in this review. AUTHORS' CONCLUSIONS Current research provides weak and inconsistent evidence of the effectiveness of such strategies in improving the implementation of policies and practices, childcare service staff knowledge or attitudes, or child diet, physical activity or weight status. Further research in the field is required.
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An internet-based self-administered intervention for promoting healthy habits and weight loss in hypertensive people who are overweight or obese: a randomized controlled trial.
Banos, RM, Mensorio, MS, Cebolla, A, Rodilla, E, Palomar, G, Lisón, J, Botella, C
BMC cardiovascular disorders. 2015;15:83
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Overweight and obesity are chronic conditions that have been linked with an increased risk of developing hypertension. Healthy lifestyle habits around eating behaviour and physical activity are known to help counteract these conditions. The aim of this study will be to evaluate whether an self-administered internet-based programme targeting eating behaviour and physical activity levels can help improve disease markers in hypertensive obese patients. The internet-based programme consisted of nine modules designed to promote healthy eating and increased physical activity. A randomised trial will be conducted with 100 hypertensive patients and participants will be randomised to either receive the online programme or usual medical care for three months. Patients will be assessed at baseline, three months, six months and one year for blood pressure and body mass index, as well as quality of life measures. The authors conclude the current literature highlights the need for more studies on the benefits of using internet-based lifestyle interventions, and suggests this protocol will provide a starting point for developing cost-effective healthy lifestyle interventions.
Abstract
BACKGROUND The prevalence of overweight and obesity is on the rise worldwide with severe physical and psychosocial consequences. One of the most dangerous is hypertension. Lifestyle changes related to eating behaviour and physical activity are the critical components in the prevention and treatment of hypertension and obesity. Data indicates that the usual procedures to promote these healthy habits in health services are either insufficient or not efficient enough. Internet has been shown to be an effective tool for the implementation of lifestyle interventions based on this type of problem. This study aims to assess the efficacy of a totally self-administered online intervention programme versus the usual medical care for obese and overweight participants with hypertension (from the Spanish public health care system) to promote healthy lifestyles (eating behaviour and physical activity). METHOD A randomized controlled trial will be conducted with 100 patients recruited from the hypertension unit of a public hospital. Participants will be randomly assigned to one of two conditions: a) SII: a self-administered Internet-based intervention protocol; and b) MUC-medical usual care. The online intervention is an Internet-delivered, multimedia, interactive, self-administered programme, composed of nine modules designed to promote healthy eating habits and increase physical activity. The first five modules will be activated at a rate of one per week, and access for modules 5 to 9 will open every two weeks. Patients will be assessed at four points: before the intervention, after the intervention (3 months), and at 6 and 12 months (follow-up). The outcome variables will include blood pressure, and Body Mass Index, as primary outcome measures, and quality of life and other lifestyle and anthropometrical variables as secondary outcome measures. DISCUSSION The literature highlights the need for more studies on the benefits of using the Internet to promote lifestyle interventions. This study aims to investigate the efficiency of a totally self-administered Internet - +based programme for promoting healthy habits and improving the medical indicators of a hypertensive and overweight population. TRIAL REGISTRATION NCT02445833.