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Background and Objectives: Although there is strong evidence of the positive effects of physical exercise on health, adherence to face-to-face exercise programs in the adult population is low, identifying several barriers that hinder their practice. There is research that demonstrates the viability of physical exercise programs with the use of Mobile Health in Ecological Momentary Assessment (EMA) mode, which contributes to overcoming many reported barriers. To synthesize the methodological characteristics and health effects of physical exercise programs based on mobile health in EMA modality in adults in developing countries. Materials and Methods: This systematic review was conducted according to guidelines established by the PRISMA statement in APA PsycArticles and CINAHL databases by EBSCOhost, Cochrane Library, PubMed, and Web of Science for articles published between 2008 and March 2024. Results: Telephone counseling on clinical-behavioral factors is believed to reduce morbidity and mortality in developed countries, but this aspect is not explored in developing countries. We included nine randomized controlled trials with a total of 4394 male and female participants aged 18 to 60 years. The interventions were mainly carried out by text messages, lasting between 20 to 80 min per session, 3 to 5 days per week, and most were carried out over 12 months. The interventions on the variables of physical activity, nutrition, and medical assessments showed significant effects, and variables such as quality of life and anthropometric measurements were not significant in most studies. Conclusions: This systematic review included studies from different developing countries, the most common diseases being diabetes, overweight, obesity, and hypertension. All the studies used mobile devices as the technology, finding a profile of the adults studied, as well as the characteristics of exercise programs based on mobile health in EMA modality.

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BACKGROUND: Patients with severe coronavirus disease 2019 (COVID-19) often require hospital admission and experience sequelae such as chronic fatigue or low muscle mass. OBJECTIVE: To analyze the functional capacity of a cohort of patients with severe acute respiratory syndrome coronavirus 2 who required hospitalization. DESIGN AND SETTING: An observational descriptive study was conducted on post-COVID-19 patients referred to the Rehabilitation Department of Gregorio Marañón Hospital (Madrid, SPAIN). METHODS: Cardiorespiratory fitness, muscle strength, body composition, and perception of fatigue and dyspnea were analyzed. Furthermore, the existing correlations between clinical variables and physical conditions were analyzed. RESULTS: Forty-two patients who required hospital admission (80 ± 22.45 days) or intensive care unit (ICU) admission (58 ± 10.52 days) were analyzed. They presented with decreased strength, respiratory capacity, and moderate-to-severe perceived fatigue. Additionally, an inverse correlation was found between right-handgrip strength and days in the ICU, as well as the 6-minute walk test for women. Similarly, strength and fitness were negatively associated with perceived fatigue. CONCLUSIONS: Post-COVID-19 patients showed low muscle function and low levels of physical fitness associated with high perceived fatigue.

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ABSTRACT BACKGROUND: Patients with severe coronavirus disease 2019 (COVID-19) often require hospital admission and experience sequelae such as chronic fatigue or low muscle mass. OBJECTIVE: To analyze the functional capacity of a cohort of patients with severe acute respiratory syndrome coronavirus 2 who required hospitalization. DESIGN AND SETTING: An observational descriptive study was conducted on post-COVID-19 patients referred to the Rehabilitation Department of Gregorio Marañón Hospital (Madrid, SPAIN). METHODS: Cardiorespiratory fitness, muscle strength, body composition, and perception of fatigue and dyspnea were analyzed. Furthermore, the existing correlations between clinical variables and physical conditions were analyzed. RESULTS: Forty-two patients who required hospital admission (80 ± 22.45 days) or intensive care unit (ICU) admission (58 ± 10.52 days) were analyzed. They presented with decreased strength, respiratory capacity, and moderate-to-severe perceived fatigue. Additionally, an inverse correlation was found between right-handgrip strength and days in the ICU, as well as the 6-minute walk test for women. Similarly, strength and fitness were negatively associated with perceived fatigue. CONCLUSIONS: Post-COVID-19 patients showed low muscle function and low levels of physical fitness associated with high perceived fatigue.

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Introduction: Introduction: there is an emerging current necessity of valid questionnaires, encompassing most of food, beverages, diseases, signs and symptoms currently related to the pathogenesis of adverse reactions to foodstuffs (ARFS) in the Spanish population. Objectives: this study aimed to design and validate two questionnaires to assess ARFS in the Spanish population, Food and Beverages Frequency Consumption Questionnaire to Identify Adverse Reactions to Foodstuffs (FBFC-ARFSQ-18); and Pathologies and Symptomatology Questionnaire associated with Adverse Reactions to Foodstuffs (PSIMP-ARFSQ-10). Methods: both questionnaires were designed adapting questionnaires from the literature; and validated, using the expert judgment method, in five phases: questionnaires development, pilot test and reliability, content validity, face validity, and ethical considerations. Questionnaires were developed using the REDCap™ tool hosted at the Universidad Politécnica de Madrid. A total of 20 Spanish experts evaluated the questionnaires. Cronbach's alpha reliability coefficients were calculated using SPSS version 25.0 (IBM Corp., Armonk, NY-USA) and Aiken's V coefficient values were calculated using ICaiken.exe (Visual Basic 6.0, Lima-Perú). Results: a final construct of questions was designed, ensuring no overlap, for FBFC-ARFSQ-18 and PSIMP-ARFSQ-10. Cronbach's alpha reliability coefficients were 0.93 and 0.94; and Aiken's V coefficient values were 0.90 (0.78-0.96 CI) and 0.93 (0.81-0.98 CI) for FBFC-ARFSQ-18 and PSIMP-ARFSQ-10, respectively. Conclusions: both validated questionnaires could be used to analyze the association between certain food and beverages consumption with ARFS, such as food allergies and food intolerances; also, to investigate the link between some specific diseases, signs and symptoms with ARFS.

Introducción: Introducción: actualmente, existe una necesidad emergente de cuestionarios validados que abarquen la mayor parte de los alimentos, bebidas, enfermedades, signos y síntomas relacionados con la patogénesis de las reacciones adversas a los alimentos (RAA). Objetivos: diseñar y validar dos cuestionarios para evaluar las RAA en población española, el Cuestionario de Frecuencia de Consumo de Alimentos y Bebidas para Identificar Reacciones Adversas de Origen Alimentario (CFCAB-RAA-18); y el Cuestionario de Patologías y Sintomatología Asociadas a Reacciones Adversas a Alimentos (PSIMP-RAA-10). Métodos: ambos cuestionarios se diseñaron adaptando cuestionarios de la literatura y se validaron, utilizando el método de juicio de expertos, en cinco fases: desarrollo de cuestionarios, prueba piloto y confiabilidad, validez de contenido, validez aparente y consideraciones éticas. Los cuestionarios se desarrollaron utilizando la herramienta REDCap™. Un total de 20 expertos evaluaron los cuestionarios. Se calcularon coeficientes de confiabilidad alfa de Cronbach con SPSS versión 25.0 (IBM Corp., Armonk, NY-Estados Unidos) y valores del coeficiente V de Aiken con ICaiken.exe (Visual Basic 6.0, Lima-Perú). Resultados: se diseñó una construcción final de preguntas, evitando solapamiento entre ambas herramientas. Los coeficientes de confiabilidad alfa de Cronbach fueron 0,93 y 0,94, y los valores del coeficiente V de Aiken fueron 0,90 (IC: 0,78-0,96) y 0,93 (IC: 0,81-0,98) (CFCAB-RAA-18 y PSIMP-RAA-10, respectivamente). Conclusiones: ambos cuestionarios fueron validados y podrían utilizarse para analizar la asociación entre el consumo de determinados alimentos y bebidas con las RAA, como alergias e intolerancias alimentarias, así como para investigar el vínculo entre algunas enfermedades, signos y síntomas específicos con las RAA.

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BACKGROUND: Whereas pulmonary exacerbations and aerobic fitness play a key role in the prognosis of cystic fibrosis (CF), the use of ventilatory threshold data as markers of exacerbation risk has been scarcely addressed. This study sought to examine the association between aerobic fitness, assessed through ventilatory threshold variables recorded during cardiopulmonary exercise testing (CPET), and the risk of exacerbations in individuals with CF. METHODS: Participants of this retrospective cohort study were subjects from 6 y of age. Over a 4-y period, the following data were recorded: lung function indicators, CPET variables, time to first exacerbation and antibiotic use, along with demographic, clinical, and anthropometric data. RESULTS: The mean age of 20 subjects included was 16 ± 5.4 y. Univariate regression analysis revealed that lung function (FEV1: Cox hazard ratio [HR] 0.97, P = .03; and forced expiratory flow between 25-75% of vital capacity [FEF25-75]: Cox HR 0.98, P = .036) and aerobic fitness (oxygen consumption [V̇O2 ] at ventilatory threshold: Cox HR 0.94, P = .01; and ventilatory equivalent for carbon dioxide [V̇E/V̇CO2 ] at ventilatory threshold: Cox HR 1.13, P = .049) were associated with exacerbation risk, whereas in the multivariate model, only V̇O2 at the ventilatory threshold (%max) (Cox HR 0.92, P = .01) had a significant impact on this risk. Consistently, individuals experiencing exacerbation had significantly lower V̇O2 values (%max) at the ventilatory threshold (P = .050) and higher ventilatory equivalent for oxygen consumption (V̇E/V̇O2 ) (P = .040) and V̇E/V̇O2 (P = .037) values at the ventilatory threshold. Time to exacerbation was significantly correlated with V̇O2 at the ventilatory threshold (r = 0.50, P = .02), V̇E/V̇O2 (r = -0.48, P = .02), and V̇E/V̇CO2 (r = -0.50, P = .02). CONCLUSIONS: Our results suggest an association between CPET variables at the ventilatory threshold and exacerbations. Percentage V̇O2 at the ventilatory threshold could serve as a complementary variable to monitor exacerbations in people with CF.

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BACKGROUND: Aerobic fitness, as measured by peak oxygen uptake (V̇O2 peak), correlates with survival in children and adults with cystic fibrosis (CF). We sought to evaluate the effects of V̇O2 peak on mortality rates in subjects with CF. METHODS: An online search in PubMed, Embase, LILACS, and SciELO databases was conducted, and cohort studies that assessed mortality rates after oxygen absorption measurements during a maximal exercise test were included. Data were extracted independently by 2 reviewers. The quality analysis of the selected articles was performed using the Newcastle-Ottawa scale. The main outcome evaluated was the mortality of subjects with CF. Whenever possible, and if appropriate, a random effect meta-analysis was performed. RESULTS: Six cohort studies were included in this systematic review including 551 subjects. Five studies were classified with high methodological quality. Two analyses were carried out to evaluate the influence of V̇O2 peak on mortality. Total difference standardized mean between V̇O2 peak averages in the survival or non-survival groups was -0.606 (95% CI = -0.993 to -0.219, P = .002). In addition, subjects with a lower V̇O2 peak had a significantly higher mortality risk (relative risk 4.896, 95% CI = 1.086 to 22.072, P = .039) in an 8-y follow-up period. CONCLUSION: Low levels of peak oxygen uptake are associated with an increase of 4.9 in the risk of mortality in subjects with CF. This indicates that V̇O2 could be an important follow-up variable to measure, in addition to FEV1.

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