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Background Coronary artery disease is the main cause of death and loss of disability-adjusted life years worldwide. Information and communication technology has become an important part of health care systems, including the innovative cardiac rehabilitation services through mobile phone and mobile health (mHealth) interventions. Objective In this study, we aimed to determine the effectiveness of different kinds of mHealth programs in changing lifestyle behavior, promoting adherence to treatment, and controlling modifiable cardiovascular risk factors and psychosocial outcomes in patients who have experienced a coronary event. Methods A systematic review of the literature was performed following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. A thorough search of the following biomedical databases was conducted: PubMed, Embase, Web of Science, SciELO, CINAHL, Scopus, The Clinical Trial, and Cochrane. Articles that were randomized clinical trials that involved an intervention consisting of an mHealth program using a mobile app in patients after a coronary event were included. The articles analyzed some of the following variables as outcome variables: changes in lifestyle behavior, cardiovascular risk factors, and anthropometric and psychosocial variables. A meta-analysis of the variables studied was performed with the Cochrane tool. The risk of bias was assessed using the Cochrane Collaboration tool; the quality of the evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation tool; and heterogeneity was measured using the I2 test. Results A total of 23 articles were included in the review, and 20 (87%) were included in the meta-analysis, with a total sample size of 4535 patients. Exercise capacity measured using the 6-minute walk test (mean difference=21.64, 95% CI 12.72-30.55; P<.001), physical activity (standardized mean difference [SMD]=0.42, 95% CI 0.04-0.81; P=.03), and adherence to treatment (risk difference=0.19, 95% CI 0.11-0.28; P<.001) were significantly superior in the mHealth group. Furthermore, both the physical and mental dimensions of quality of life were better in the mHealth group (SMD=0.26, 95% CI 0.09-0.44; P=.004 and SMD=0.27, 95% CI 0.06-0.47; P=.01, respectively). In addition, hospital readmissions for all causes and cardiovascular causes were statistically higher in the control group than in the mHealth group (SMD=–0.03, 95% CI –0.05 to –0.00; P=.04 vs SMD=–0.04, 95% CI –0.07 to –0.00; P=.05). Conclusions mHealth technology has a positive effect on patients who have experienced a coronary event in terms of their exercise capacity, physical activity, adherence to medication, and physical and mental quality of life, as well as readmissions for all causes and cardiovascular causes. Trial Registration PROSPERO (International Prospective Register of Systematic Reviews) CRD42022299931; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=299931

Purpose To analyze the effect of different diabetes education methods on metabolic control, body mass index (BMI), and blood pressure. Design A systematic review was carried out. Data Sources PubMed, Medline, Embase, Cochrane, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), CUIDEN, Ibecs, and Scopus databases were consulted. The search was done in May 2018. Studies included controlled clinical trials on diabetes education in primary care that were published in English and Spanish during the years 2011 to 2018. Results The post‐intervention results were as follows: glycosylated hemoglobin concentration (HbA1c) ranged between ‐1.6% (individual education [IE]) and + 0.05% (mixed education [ME]). The values of BMI varied from ‐0.7% (group education [GE]) to ‐0.3% (GE). Systolic blood pressure (SBP) and diastolic blood pressure (DBP) fluctuated. SBP varied from ‐8.5 mmHg (GE) to +2.9 mmHg (GE); DBP varied from ‐3.1 mmHg (GE) to ‐0.9 mmHg (GE). Total cholesterol ranged from ‐15.9/dL (GE) to +2 mg/dL (GE). LDL cholesterol ranged from ‐18.3 mg/dL (GE) to ‐7 mg/dL (ME). HDL cholesterol ranged from +0.8 mg/dL (IE) to +8.12 mg/dL (GE). Triglycerides varied from ‐21.1 mg/dL (GE) to +11.0 (GE). Conclusions The most profound decrease in HbA1c was achieved using individual education. However, to decrease BMI, SBP, DBP, total cholesterol, LDL cholesterol, and triglycerides, group education was the most effective intervention. Clinical Relevance To obtain good metabolic control, it is necessary to address both clinical and psychological aspects, including modifying nutritional and dietary habits, monitoring medication, increasing knowledge of diabetes, and combining theoretical content with physical exercise programs. Reinforcement strategies are very important to achieve the objectives of educational programs.

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The General and Sport Nutrition Knowledge Questionnaire (GeSNK) is an instrument that has been developed and validated to assess the level of nutrition knowledge in adolescents and young adults. The aim of the present study was to validate the GeSNK questionnaire in a group of Spanish adolescents in the framework of a Nutrition Education Programme in Secondary Schools in Andalusia, Spain. This cross-sectional questionnaire validation study was developed in two phases: translation-cultural adaptation and validation. A total of 305 adolescents aged 11 to 17 years, studying from the first to the third year of compulsory secondary education, participated on a voluntary basis. The GeSNK questionnaire consists of 62 items: 29 items for the General Nutrition section and 33 items for the Sports Nutrition section. Cronbach’s alpha coefficient for the complete questionnaire (GeSNK Total) was: 0.934; for the GeSNK General Nutrition section it was 0.918; and for the GeSNK Sports Nutrition section it was 0.856. The stability measured by the correlation coefficient for the General Nutrition section was 0.406 (p = 0.000); for the Sports Nutrition section it was 0.198 (p = 0.017); and for GeSNK Total the stability was 0.545 (p = 0.000). The questionnaire also demonstrated adequate construct validity. We therefore conclude that the Spanish version of the GeSNK questionnaire is a valid instrument to measure the level of knowledge in general nutrition and sports nutrition in adolescents.