Comparison between Measured and Predicted Resting Metabolic Rate Equations in Cross-Training Practitioners.

This study aimed to investigate the resting metabolic rate (RMR) in cross-training practitioners (advanced and novice) using indirect calorimetry (IC) and compare it with predictive equations proposed in the scientific literature. METHODS: A cross-sectional and comparative study analyzed 65 volunteers, both sexes, practicing cross-training (CT). Anthropometry and body composition were assessed, and RMR was measured by IC (FitMate PRO®), bioimpedance (BIA-InBody 570®), and six predictive equations. Data normality was tested by the Kolgomorov-Smirnov test and expressed as mean ± standard deviation with 95% confidence intervals (CI), chi-square test was performed to verify ergogenic resources, and a Bland-Altman plot (B&A) was made to quantify the agreement between two quantitative measurements. One-way ANOVA was applied to body composition parameters, two-way ANOVA with Bonferroni post hoc was used to compare the RMR between groups, and two-way ANCOVA was used to analyze the adjusted RMR for body and skeletal muscle mass. The effect size was determined using Cohen's d considering the values adjusted by ANCOVA. If a statistical difference was found, post hoc Bonferroni was applied. The significance level was p < 0.05 for all tests. RESULTS: The main results indicated that men showed a higher RMR than women, and the most discrepant equations were Cunningham, Tinsley (b), and Johnstone compared to IC. Tinsley's (a) equation indicated greater precision in measuring the RMR in CM overestimated it by only 1.9%, and BIA and the Harris-Benedict in CW overestimated RMR by only 0.1% and 3.4%, respectively. CONCLUSIONS: The BIA and Harris-Benedict equation could be used reliably to measure the RMR of females, while Tinsley (a) is the most reliable method to measure the RMR of males when measuring with IC is unavailable. By knowing which RMR equations are closest to the gold standard, these professionals can prescribe a more assertive diet, training, or ergogenic resources. An assertive prescription increases performance and can reduce possible deleterious effects, maximizing physical sports performance.

Obesity as a Risk Factor for Complications and Mortality in Individuals with SARS-CoV-2: A Systematic Review.

This systematic review aimed to analyze the available studies that identified overweight and/or obesity as a risk factor for mortality, use of respiratory support, and changes in biochemical markers in adults hospitalized with SARS-CoV-2. The PubMed, Web of Science, and Scopus databases were searched using PRISMA guidelines until January 2024. The protocol was registered with PROSPERO (code: CRD42024501551). Of the 473 articles, only 8 met the inclusion criteria (e.g., adult individuals aged 18 or over diagnosed with COVID-19 individuals with overweight and/or obesity). In addition, the Downs and Black tool was used to assess the quality of the studies. The studies analyzed totaled 9782 adults hospitalized for COVID-19, indicating that overweight and obesity are present in more than half of adults. Diseases such as diabetes mellitus and hypertension are more prevalent in adults with obesity. The systematic review also highlighted that a higher incidence of respiratory support is related to a higher incidence of hospitalization in intensive care units and that adults with overweight and obesity have a higher risk of mortality from COVID-19. Biochemical markers such as procalcitinin, C-reactive protein, and interleukin-6 are associated with the severity of COVID-19 infection. This systematic review exposed overweight and/or obesity as a risk factor for worse COVID-19 disease, as well as for the need for intensive care, respiratory support, mortality, and changes in essential blood markers.

Effects of 12 Weeks of Family and Individual Multi-Disciplinary Intervention in Overweight and Obese Adolescents under Cardiometabolic Risk Parameters: A Clinical Trial.

Adolescence is a complex period of human development in which young people are susceptible to unhealthy behaviors, such as physical inactivity and an unbalanced diet. This study aimed to analyze the effects of 12 weeks of multi-disciplinary family and individual intervention on cardiometabolic risk parameters in overweight and obese adolescents and compare sub-groups, considering possible differences between sexes (males vs. females vs. intervention approach). Forty-three adolescents (13.73 ± 2.46 years old) of both sexes were divided into two groups: family group (FG) (n = 21; 14.24 ± 2.61 years old) and individual group (IG) (n = 22; 13.23 ± 2.27 years old). The following parameters were evaluated: anthropometry (body weight, height, waist circumference (WC), hip circumference (HC), abdominal circumference (AC), calculation of body mass index (BMI), and waist-hip ratio (WHR)), body composition (fat mass (FM), lean mass (LM), fat-free mass (FFM), skeletal muscle mass (SMM), body fat percentage (BF), and visceral fat), biochemical measures (fasting glucose, triglycerides (TG), total cholesterol (TC), low-density lipoproteins (LDL-c), and high-density lipoproteins (HDL-c)), and the measurement of systolic and diastolic blood pressure (SBP and DBP) before and after the interventions. The multi-disciplinary interventions occurred for 12 weeks (three days a week lasting 1 h and 30 min, in which 30 min were dedicated to theoretical interventions (nutrition: nutritional education and psychology: psychoeducation) and 1 h to physical exercises. A time effect was observed for LM, FFM, SMM, FM, and HDL-c, with higher values after intervention and a significant decrease for FM, BF, visceral fat, fasting glucose, TG, TC, LDL-c, and DBP (p < 0.05). However, no group, sub-group, or interaction effects were observed when comparing FG, IG, or sexes (p > 0.05). The responses of the present study show that both multi-disciplinary approaches (family and individual) promoted improvement in the body composition indicators, biochemical markers, and DBP of overweight and obese adolescents independently of the intervention group. Given this finding, health professionals, families, and adolescents could choose the type of intervention based on their preferences.

Effects of a multi-professional intervention on body composition, physical fitness and biochemical markers in overweight COVID-19 survivors: a clinical trial.

Introduction: The sequelae post-COVID can affect different systems. In this sense, considering the multi-factorial etiology of COVID-19, multi-professional interventions could be a relevant strategy for recovery health indicators. Objective: This study aimed to investigate the effects of multi-professional intervention on body composition, physical fitness, and biomarkers in overweight COVID-19 survivors with different symptomatology. Methodology: A non-randomized parallel group intervention included 69 volunteers (BMI ≥25 kg/m2), divided into three groups according to SARS CoV-2 symptomatology, but only 35 finished the longitudinal protocol [control group (n = 11); moderate group (n = 17) and severe group (n = 7)]. The groups were submitted to a multi-professional program (nutritional intervention, psychoeducation, and physical exercise intervention) for 8 weeks, and the volunteers underwent body composition assessments (primary outcome) and physical and biochemical tests (secondary outcome) in pre- and post-intervention. This study was registered on the Clinical Trials Registration Platform number: RBR-4mxg57b and with the local research ethics committee protocol under number: 4,546,726/2021. Results: After the 8-week multi-professional intervention, the following results were observed for the moderate COVID-19 group: improved dynamic strength of lower- and (p = 0.003), upper-limbs (p = 0.008), maximal isometric lumbar-traction strength (p = 0.04), flexibility (p = 0.0006), and albumin (p = 0.0005), as well as a reduction in the C reactive protein (CRP) (p = 0.003) and fasting glucose (p = 0.001); for the severe COVID-19 group: an improvement in dynamic lower-body strength (p = 0.001), higher values of albumin (p = 0.005) and HDL-c (p = 0.002), and lower values of CRP (p = 0.05), and for the control group: an improvement in sit-up repetitions (p = 0.008), and a reduction of CRP (p = 0.01), fasting glucose (p = 0.001) and total cholesterol (p = 0.04) were identified. All experimental groups reduced triglycerides after intervention (p < 0.05). Conclusion: Finally, 8 weeks of multiprofessional intervention can be an efficient tool for reversing the inflammatory process and promoting improvements in daily activities and quality of life, although it is believed that the severe COVID-19 group needs longer interventions to improve different health indicators. Clinical Trial Registration: https://ensaiosclinicos.gov.br/, identifier: RBR-4mxg57b.

Effects of a Multi-Professional Intervention on Mental Health of Middle-Aged Overweight Survivors of COVID-19: A Clinical Trial.

The present study aimed to investigate the effects of a multi-professional intervention model on the mental health of middle-aged, overweight survivors of COVID-19. A clinical trial study with parallel groups and repeated measures was conducted. For eight weeks, multi-professional interventions were conducted (psychoeducation, nutritional intervention, and physical exercises). One hundred and thirty-five overweight or obese patients aged 46.46 ± 12.77 years were distributed into four experimental groups: mild, moderate, severe COVID, and control group. The instruments were used: mental health continuum-MHC, revised impact scale-IES-r, generalized anxiety disorder-GAD-7, and Patient health questionnaire PHQ-9, before and after eight weeks. The main results indicated only a time effect, with a significant increase in global MHC scores, emotional well-being, social well-being, and psychological well-being, as well as detected a significant reduction in global IES-R scores, intrusion, avoidance, and hyperarousal, in addition to a reduction in GAD-7 and PHQ-9 scores (p < 0.05). In conclusion, it was possible to identify those psychoeducational interventions that effectively reduced anxiety, depression, and post-traumatic stress symptoms in post-COVID-19 patients, regardless of symptomatology, in addition to the control group. However, moderate and severe post-COVID-19 patients need to be monitored continuously since the results of these groups did not follow the response pattern of the mild and control groups.

Motivations of overweight adolescents participating in a multidisciplinary health promotion program / Motivações de adolescentes acima do peso participantes de um programa multidisciplinar de promoção da saúde

Introduction: the perception of individuals about their own health is a strong indicator of their real state, as well as their behaviors related to the prognosis in case of presence of pathologies, besides being proportional to their motivations to acquire healthy habits. Objective: to describe the motivations of overweight adolescents when participating in a multidisciplinary health promotion program and their perceptions about habits related to physical and emotional well-being. Methods: this is a qualitative study, using the Bardin content analysis technique. The tool used for data collection was the semi-structured interview, analyzed with the help of the software QSR NVivo 11 through grouping of the speech into clusters. These in turn were evaluated in three categories: (1) motivation; (2) food; and (3) physical exercise. Results: the average age of the participants was 13.8 ± 2.4, with an average body mass index of 31.8 ± 8.5 kg/m². Regarding family income, 41.66% had monthly income of 3 to 6 minimum wages. Regarding the educational level of parents, 70.83% of mothers had completed higher education, while 29.16% had completed high school. According to the respondents' answers, the greatest motivation to participate in a multidisciplinary obesity treatment program was weight loss. In category 2, it was observed that adolescents associated the act of eating with feelings such as anxiety and nervousness. In category 3, the impact of the pandemic was found under the modalities of physical exercise practiced. Conclusion: the results prove the importance of understanding the perception of adolescents about their own health and related habits, in order to elaborate effective strategies for health promotion and consequent improvement of the quality of life of these individuals.

Introdução: a percepção dos indivíduos a respeito da própria saúde é um forte indicador do seu real estado, bem como dos seus comportamentos relativos ao prognóstico em caso de presença de patologias, além de ser proporcional às suas motivações para adquirir hábitos saudáveis. Objetivo: descrever as motivações de adolescentes acima do peso ao participarem de um programa multidisciplinar de promoção da saúde e suas percepções a respeito de hábitos relacionados ao bem estar físico e emocional. Métodos: trata-se de estudo de abordagem qualitativa, com emprego da técnica de análise de conteúdo de Bardin. A ferramenta utilizada para coleta de dados foi a entrevista semiestruturada, analisada com auxílio do software QSR NVivo 11 através de agrupamento das falas em clusters. Esses por sua vez foram avaliados em três categorias: (1) motivação; (2) alimentação; e (3) exercício físico. Resultados: a idade média dos participantes foi de 13,8 ± 2,4, com índice de massa corporal médio de 31,8 kg/m² ± 8,5. Em relação à renda familiar, 41,66% apresentaram renda mensal de 3 a 6 salários mínimos. No que tange à escolaridade dos responsáveis, 70,83% das mães possuíam o ensino superior completo, enquanto 29,16% possuíam ensino médio completo. De acordo com as respostas dos entrevistados a maior motivação para participarem de um programa multidisciplinar de tratamento da obesidade foi o emagrecimento. Já na categoria 2 observou-se que os adolescentes associaram o ato de comer com sentimentos como a ansiedade e o nervosismo. Na categoria 3, constatou-se o impacto da pandemia sob as modalidades de exercício físico praticados. Conclusão: os resultados comprovam a importância de entender a percepção dos adolescentes a respeito da própria saúde e hábitos relacionados, a fim de elaborar de estratégias efetivas para promoção da saúde e consequente, melhoria da qualidade de vida desses indivíduos.

Change in the motivation pattern of adolescents before and after participation in a multidisciplinary health promotion program

Introduction: there is evidence that multidisciplinary interventions are an efficient approach to achieving weight loss and other health-related goals. However, dropout rates of these programs are high among adolescents. The suggestion is that understanding the motivation of individuals to participate in these projects is fundamental to developing strategies for permanence and, consequently, promoting better results.Objective: the main aim of this study was to describe the motivations of overweight adolescents participating in a multidisciplinary health promotion project.Methods: this qualitative study was conducted from March to July 2021 using the Bardin content analysis technique. The tool used for data collection was the semi-structured interview, analyzed means by the software QSR NVivo 11 by grouping the speech into clusters. These, in turn, were evaluated in three categories: (1) motivation, (2) food, and (3) physical exercise.Results: the age of the participants was 13.8 ± 2.4 years old, with body mass index of 31.8 ± 8.5 kg/m². Regarding family income, 41.66% had a monthly payment of 3 to 6 minimum wages. Regarding parents' educational level, 70.83% of mothers had completed higher education, while 29.16% had completed high school. According to the respondent's answers, weight loss was the greatest motivation to participate in a multidisciplinary obesity treatment program. In category 2, it was observed that adolescents associated the act of eating with feelings such as anxiety and nervousness. In category 3, the impact of the pandemic was found under the modalities of physical exercise practiced.Conclusion: the results describe the motivation of overweight adolescents to participate in a multidisciplinary program, in addition to elucidating participants' perception of their health and related habits, strategies for health promotion, and consequent improvement of the quality of life of these individuals.

Impacts of a Multi-Professional Family versus Isolated Intervention on Food Level Processing in Overweight Adolescents: A Randomized Trial.

The food consumption of adolescents has changed nowadays, with an increase in ultra-processed food that in general shows higher calories and lower nutrients. Because of this, the objective of this study was to investigate the impacts of a 12-week multi-professional family versus isolated intervention on the food level processing of overweight adolescents. A randomized clinical trial study was carried out in which adolescents (n = 43; mean aged 13.73 years) who were divided into FG-family group (n = 21; the adolescents performed the activities with their parents) and IG-isolated group (n = 22; the adolescents performed the activities alone). The parameters measured before and after 12 weeks of multi-professional intervention (physical exercise, nutrition and psychoeducation) were: body mass, height and body mass index-BMI. The level of food processing was analyzed using a three-day food recall (24hR), classified according to the Food Guide for the Brazilian Population (fresh, minimally, processed and ultra-processed foods). The main results show that there was only a significant reduction in the consumption of processed foods (FG: 7.93%; IG: 49.73%) and ultra-processed foods (FG: 35.06%; IG: 67.16%) in grams (FG: 22.29%; IG: 65.23%) and calories (p < 0.05; for all comparisons). The consumption of fresh foods in grams (FG:61.97%; IG: 147.13%) and calories (FG: 147.13%; IG: 118.03%) and minimally processed foods (FG: 27.45%; IG: 14.64%) in grams increased significantly (p < 0.05; for all comparisons). However, no significant differences were observed between all variables analyzed for the groups, nor any interaction (p > 0.05). In conclusion, both groups who participated in the activities showed positive changes with increased consumption of fresh foods and reduced consumption of processed foods, without difference between them.

Effects of Photobiomodulation on High-Intensity Intermittent Anaerobic Performance of Lower Limbs in Brazilian Jiu-Jitsu Athletes: A Randomized, Crossover, Double-Blind Clinical Trial.

Photobiomodulation (PBM) has ergogenic effects on aerobic and anaerobic efforts and may improve sports performance. As Brazilian jiu-jitsu (BJJ) fighting requires both aerobic and anaerobic metabolism, so PBM may be effective in increasing the physical performance of BJJ athletes. Thus, this study aimed to verify the effects of PBM with different energy doses (6 or 12 J per point) on high-intensity intermittent anaerobic performance in BJJ athletes. METHODS: Eleven male athletes performed three lower limb Wingate testing sessions. At the beginning of each session, in a randomized, crossover, double-blind fashion, the athletes received PBM with a dose of 6 J (4.5 J/cm2) or 12 J (9.1 J/cm2), or placebo (PLA) at 17 points in each lower limb. In each session, the squat jump (SJ) and three Wingate test series were performed, with a 3-minute interval between series. Heart rate (HR) was collected immediately before, after each Wingate test, and at 1, 3, and 5 minutes after the last test. The rate of perceived exertion (RPE) was reported after each Wingate test. Differences between Wingate tests and treatment sessions were set at p<0.05. RESULTS: No differences were observed between treatments in SJ height, Wingate performance, HR, and RPE (p>0.05; for all comparisons). The Wingate test session promoted a reduction in anaerobic capacity in the second and third sets in all conditions, indicating fatigue (p<0.05). CONCLUSION: Treatment with PBM did not produce a dose-dependent ergogenic response in high-intensity intermittent performance in BJJ athletes.

Efeitos deletérios do Lockdown frente à COVID-19 sobre respostas à saúde de adolescentes com obesidade: um estudo longitudinal / Deleterious effects of COVID-2019 Lockdown on health responses in adolescents with obesity: longitudinal study

Trata-se de um estudo longitudinal e observacional que investigou as consequências do lockdown em decorrência do coronavírus em 2020, na aptidão física relacionada à saúde e respostas bioquímicas de 16 adolescentes do sexo masculino com sobrepeso ou obesidade (idade 12,6 ± 1,8 anos). A antropometria, composição corporal, testes de aptidão física e medidas de biomarcadores sanguíneos (glicemia em jejum, colesterol total [CT], colesterol de lipoproteína de baixa densidade [LDL-c], triglicerídeos [TG], aspartato aminotransferase [AST] e alanina aminotransferase [ALT]) foram avaliados antes e após 8 meses de lockdown. Os resultados mostraram um aumento do peso corporal, massa livre de gordura e circunferência da cintura e do quadril (p<0,05) após 8 meses. A força isométrica máxima de preensão manual e a flexibilidade aumentaram, enquanto a resistência muscular diminuiu (p<0,05). A glicemia em jejum, CT, LDL-c, TG, TG/glicose, AST, ALT, TG/HDL-c, CT/HDL-c e LDL/HDL aumentaram (p<0,05), ao passo que os níveis de HDL-c diminuíram significativamente (p<0,05). Portanto, 8 meses de isolamento social promoveram efeitos deletérios sobre parâmetros morfológicos e aptidão física em adolescentes. No entanto, o pequeno tamanho da amostra impede a generalização desses achados.

This longitudinal and observational study investigated the consequences of the coronavirus disease 2019 lockdown on health-related physical fitness and biochemical responses in 16 overweight or obese male adolescents (aged 12.6±1.8 years). The anthropometry, body composition, physical fitness tests, and measures of blood biomarkers (fasting blood glucose, total cholesterol [TC], low-density lipoprotein cholesterol [LDL-c], triglycerides [TG], aspartate aminotransferase [AST], and alanine aminotransferase [ALT]) were evaluated before and after 8 months of lockdown. The results showed increased body weight, fat-free mass, and waist and hip circumference (p<0.05) after 8 months. Maximum isometric handgrip strength and flexibility increased, while muscle endurance decreased (p<0.05). Fasting blood glucose, TC, LDL-c, TG, TG/glucose, AST, ALT, TG/HDL-c, CT/HDL-c, and LDL/HDL increased (p<0.05), while the HDL-c levels decreased significantly (p<0.05). Therefore, eight months of social isolation promoted harmful effects on adolescents' morphological parameters and physical fitness. However, the small sample size prevents the generalization of these findings.

Efectos de dos programas de ejercicios resistidos en la aptitud física relacionada con la salud de mujeres obesas con síntomas de algia en las rodillas / Effects of two resistance exercise programs on the health-related fitness of obese women with pain symptoms in the knees

Introducción: El sobrepeso afecta negativamente al sistema cardiovascular y al osteomioarticular, favoreciendo el dolor en las articulaciones de las extremidades inferiores. Por lo tanto, se han aplicado estrategias para reducir el sobrepeso a través de cambios en el estilo de vida. Objetivo: investigar los efectos de dos programas de intervención multidisciplinares sobre la aptitud física relacionada con la salud de mujeres obesas con síntomas de dolor en las rodillas. Métodos: Se evaluó a mujeres entre 40 y 59 años con obesidad (n=59) en el tiempo pre y post intervención en antropometría, composición corporal, aptitud física, nivel de discapacidad en rodilla y cadera y calidad de vida relacionada con la salud. Se realizó un ensayo clínico aleatorizado de grupos paralelos, utilizando dos programas de ejercicio de resistencia y reeducación alimentaria, durante ocho semanas. Todos los participantes recibieron el mismo contenido de intervención nutricional y para ejercicios físicos se aleatorizaron en dos grupos, G1 siendo el "grupo de fuerza" utilizando máquinas (n=30), y G2 siendo el grupo de "entrenamiento funcional" (n=29). Veintiocho mujeres (G1=18 + G2=10) fueron incluidas en los análisis finales. Los grupos y el tiempo se evaluaron mediante análisis bidireccional de la varianza, con medidas repetidas. Se asumió una p < 0,05 para todos los análisis. Resultados: se identificó un efecto de tiempo, con valores más altos para la fuerza máxima de tracción lumbar isométrica (MILTS), luego del período de intervención en ambos grupos (p < 0.05). Sin embargo, para las otras variables investigadas, no se identificaron diferencias significativas (p > 0.05). Conclusión: La ausencia de resultados significativos para todas las variables, excepto FIMTL, puede estar justificada por la adherencia moderada de los participantes a las intervenciones (~ 59% a 66%) ya que el estudio se realizó durante el período de aislamiento social (COVID-19). Sin embargo, se cree que los modelos de intervención fueron positivos en el mantenimiento de las variables estudiadas.

Introduction: Overweight negatively impacts the cardiovascular system and osteomyoarticular, promoting pain in the joints of the lower limbs. Therefore, strategies have been applied to reduce overweight through lifestyle changes. Objective: to investigate the effects of two multidisciplinary intervention programs on the health-related physical fitness of obese women with pain symptoms in the knees. Methods: Women between 40 and 59 years of age with obesity (n=59) were evaluated in the pre- and post-intervention time regarding anthropometry, body composition, physical fitness, level of disability in the knee and hip, and health-related quality of life. A randomized clinical trial of parallel groups was conducted, using two resistance exercise programs and food re-education, for eight weeks. All participants received the same nutritional intervention content and for physical exercises were randomized into two groups, G1 being the "strength group" using machines (n=30), and G2 being the "functional training" group (n=29). Twenty-eight women (G1=18 + G2=10) were included in the final analyses. The groups and time were evaluated by two-way analysis of variance, with repeated measures. A p < 0.05 was assumed for all analyses. Results: a time effect was identified, with higher values for maximum isometric lumbar-traction strength (MILTS), after the intervention period in both groups (p < 0.05). However, for the other variables investigated, no significant differences were identified (p > 0.05). Conclusion: The absence of significant results for all variables, except FIMTL, may be justified by the moderate adherence of the participants to interventions (~59% to 66%) since the study was conducted during the period of social isolation (COVID-19). However, it is believed that the intervention models were positive in maintaining the variables studied.

Effects of a multi-professional approach on anthropometric variables and food profile of overweight or obese adolescents / Efeitos de uma abordagem multi-profissional sobre variáveis antropométricas e de perfil alimentar de adolescentes com sobrepeso ou obesidade

INTRODUCTION: Investigating the of overweight or obese adolescents' nutritional quality is substantial to guide healthy eating strategiesOBJECTIVE: To assess the effects of a multi-professional approach on anthropometric parameters, body composition, and the level of food processing in adolescentsMETHODS: Twelve overweight/obese male adolescents between 13-17 years old participated in a series of 12-week multi-professional interventions led by physical education, nutrition, and psychology professionals. The participants were assessed before the intervention as well as at 6 and 12 weeks. Anthropometric assessments were performed, including body weight, stature, and body mass index; body composition, with fat mass (FM), body fat (%BF), skeletal muscle mass, and resting metabolic rate (RMR), and by filling in a three-day food record, to assess the ingested foods by its level of processing: fresh, minimally processed, processed, and ultra-processedRESULTS: No differences were observed in anthropometric parameters performed at different stages (p>0.05). Reductions in FM and %BF and increases in SMM and RMR (p<0.05) were identified after, the 12-week intervention. There was an increase in the consumption of natural foods/g and increased the caloric consumption of processed foods/kcal after 12-week of intervention (p<0.05CONCLUSION: The model resulted in a decrease in fat mass and body fat percentage, an in skeletal muscle mass, resting metabolic rate, natural foods/g, and processed foods/kcal

INTRODUÇÃO: Investigar a qualidade nutricional de adolescentes com sobrepeso ou obesidade é substancial para orientar estratégias de alimentação saudávelOBJETIVO: Avaliar os efeitos de uma abordagem multiprofissional sobre os parâmetros antropométricos, de composição corporal e o nível de processamento de alimentos em adolescentesMÉTODO: Doze adolescentes do sexo masculino com sobrepeso/obesidade, entre 13-17 anos participaram de uma série de intervenções multiprofissionais ao longo de 12 semanas, que foram conduzidas por profissionais de educação física, nutricionistas e psicólogos. Os participantes foram avaliados antes da intervenção, após 6 e após 12 semanas. As avaliações antropométricas foram realizadas, incluindo o peso corporal, a estatura e o índice de massa corporal; para a composição corporal foram incluídas: a massa gorda (MG), percentual de gordura corporal (%G), massa muscular esquelética (MME) e taxa metabólica basal (TMB), bem como o preenchimento do registro alimentar de três dias, para avaliar os alimentos ingeridos, via nível de processamento: in natura, minimamente processado, processado e ultraprocessadoRESULTADOS: Não foram observadas diferenças significativas nos parâmetros antropométricos realizados nas diferentes etapas (p>0,05). Reduções na MG e %G e aumentos na MME e TMB (p<0,05) foram identificados após 12 semanas de intervenção. Houve um aumento do consumo de alimentos in natura/g e aumento do consumo calórico de alimentos industrializados/kcal, após 12 semanas de intervenção (p<0,05CONCLUSÃO: O modelo proposto resultou em uma diminuição da massa gorda e percentual de gordura corporal, aumento da massa muscular esquelética, taxa metabólica basal, consumo de alimentos naturais/g e alimentos processados/kcal

Baseline Motor Impairment Predicts Transcranial Direct Current Stimulation Combined with Physical Therapy-Induced Improvement in Individuals with Chronic Stroke.

Transcranial direct current stimulation (tDCS) can enhance the effect of conventional therapies in post-stroke neurorehabilitation. The ability to predict an individual's potential for tDCS-induced recovery may permit rehabilitation providers to make rational decisions about who will be a good candidate for tDCS therapy. We investigated the clinical and biological characteristics which might predict tDCS plus physical therapy effects on upper limb motor recovery in chronic stroke patients. A cohort of 80 chronic stroke individuals underwent ten to fifteen sessions of tDCS plus physical therapy. The sensorimotor function of the upper limb was assessed by means of the upper extremity section of the Fugl-Meyer scale (UE-FM), before and after treatment. A backward stepwise regression was used to assess the effect of age, sex, time since stroke, brain lesion side, and basal level of motor function on UE-FM improvement after treatment. Following the intervention, UE-FM significantly improved (p < 0.05), and the magnitude of the change was clinically important (mean 6.2 points, 95% CI: 5.2-7.4). The baseline level of UE-FM was the only significant predictor (R 2 = 0.90, F (1, 76) = 682.80, p < 0.001) of tDCS response. These findings may help to guide clinical decisions according to the profile of each patient. Future studies should investigate whether stroke severity affects the effectiveness of tDCS combined with physical therapy.

Test-retest reliability of the simon task: a short version proposal.

Background: The standard version of the Simon task (an instrument for assessing attentional demands, inhibitory control and the perception-action cycle) comprises a total of 168 trials. Different versions of this task are used in the literature, but it is not clear whether the Simon effect can be found using brief versions of the test.Purpose: This study aims to investigate the presence of the Simon effect and its test-retest reliability in a brief version of 28 trials of the Simon task.Material and Methods: Ninety-two (92) subjects between the ages of 18-30 participated in this study. Participants performed two sessions (test and retest) in which the brief battery of the Simon task was used. Latency (reaction time - RT) and the accuracy (number of errors) were measured for the two typical conditions of the test (corresponding and non-corresponding).Results: A significant interaction (two-way ANOVA) between condition and moment (test vs. retest) was found for RT. Main effects were observed for both conditions (corresponding vs. non- corresponding) and moment (test vs. retest). A good measurement of reliability (α Cronbach = 0.883) was also observed.Conclusions: The 28-trial battery of the Simon Task seems to be efficient for eliciting the Simon Effect and it can therefore be considered reliable.

Transcranial magnetic stimulation of the medial prefrontal cortex for psychiatric disorders: a systematic review

Objective: The medial prefrontal cortex (mPFC) is a highly connected cortical region that acts as a hub in major large-scale brain networks. Its dysfunction is associated with a number of psychiatric disorders, such as schizophrenia, autism, depression, substance use disorder (SUD), obsessive-compulsive disorder (OCD), and anxiety disorders. Repetitive transcranial magnetic stimulation (rTMS) studies targeting the mPFC indicate that it may be a useful therapeutic resource in psychiatry due to its selective modulation of this area and connected regions. Methods: This review examines six mPFC rTMS trials selected from 697 initial search results. We discuss the main results, technical and methodological details, safety, tolerability, and localization strategies. Results: Six different protocols were identified, including inhibitory (1 Hz) and excitatory (5, 10, and 20 Hz) frequencies applied therapeutically to patient populations diagnosed with major depressive disorder, OCD, autistic spectrum disorder, SUD, specific phobia, and post-traumatic stress disorder (PTSD). In the OCD and acrophobia trials, rTMS significantly reduced symptoms compared to placebo. Conclusion: These protocols were considered safe and add interesting new evidence to the growing body of mPFC rTMS literature. However, the small number and low methodological quality of the studies indicate the need for further research.

Effects of the Order of Physical Exercises on Body Composition, Physical Fitness, and Cardiometabolic Risk in Adolescents Participating in an Interdisciplinary Program Focusing on the Treatment of Obesity.

The main objective of this study was to investigate the effects of the order of physical exercises on body composition, physical fitness, and cardiometabolic risk in adolescents participating in an interdisciplinary program focusing on the treatment of obesity. The final 12-week analyses involved 33 female adolescents who were split into two groups of concurrent training (CT): resistance plus aerobic training and aerobic plus resistance training, with equalization performed in all physical exercises. The only difference between the two groups was the order in which the exercises were performed. The results showed reductions in fat mass, body fat, and waist circumference, as well as increases in musculoskeletal mass and resting metabolic rate (p < 0.05) following the multiprofessional intervention period. However, no significant differences were observed in regard to body mass, body mass index, neck circumference, or arm circumference (p > 0.05). Maximal isometric strength and maximal oxygen consumption showed significant increases after the intervention period (p < 0.05). There were reductions in insulin, HOMA-IR, total cholesterol, triglycerides, and low-density lipoproteins (p < 0.05), and an interaction within the resistance plus aerobic training group showed lower values for triglycerides when compared to itself (p = 0.002). No difference was found in fasting glycemia for either group (p > 0.05). It is worth noting that the equalization training variables presented no differences between the two groups (p > 0.05). Based on these results, both CT methods were found to be effective in promoting health parameters in overweight and obese female adolescents, and triglyceride values decreased more in the resistance plus aerobic group. Future studies with larger samples and feeding control should be conducted to confirm or refute our findings.

Transcranial magnetic stimulation of the medial prefrontal cortex for psychiatric disorders: a systematic review.

OBJECTIVE: The medial prefrontal cortex (mPFC) is a highly connected cortical region that acts as a hub in major large-scale brain networks. Its dysfunction is associated with a number of psychiatric disorders, such as schizophrenia, autism, depression, substance use disorder (SUD), obsessive-compulsive disorder (OCD), and anxiety disorders. Repetitive transcranial magnetic stimulation (rTMS) studies targeting the mPFC indicate that it may be a useful therapeutic resource in psychiatry due to its selective modulation of this area and connected regions. METHODS: This review examines six mPFC rTMS trials selected from 697 initial search results. We discuss the main results, technical and methodological details, safety, tolerability, and localization strategies. RESULTS: Six different protocols were identified, including inhibitory (1 Hz) and excitatory (5, 10, and 20 Hz) frequencies applied therapeutically to patient populations diagnosed with major depressive disorder, OCD, autistic spectrum disorder, SUD, specific phobia, and post-traumatic stress disorder (PTSD). In the OCD and acrophobia trials, rTMS significantly reduced symptoms compared to placebo. CONCLUSION: These protocols were considered safe and add interesting new evidence to the growing body of mPFC rTMS literature. However, the small number and low methodological quality of the studies indicate the need for further research.

Cortical excitability variability: Insights into biological and behavioral characteristics of healthy individuals.

Motor threshold (MT) measured by transcranial magnetic stimulation (TMS) has diagnostic utility in central nervous system disorders. Its diagnostic sensitivity may be enhanced by identification of non-pathological factors which may influence this measure. The aim of this study was to provide a description of MT variability across physiological and non-pathological behaviour characteristics in a large cohort, including hemispheric asymmetries. In a cross-sectional study, age, handedness, physical activity level, body mass index, gender/menstrual cycle phase, glycemic index and degree of stress were collected from 115 healthy participants. The resting MT of the first dorsal interosseous muscle to TMS was recorded in both hemispheres and served as an indicator of the cortical excitability level. Repeated measures ANOVAs revealed higher MT values in the non-dominant hemisphere, elderly people, stressed individuals and women with amenorrhea. Other biological and behavioral individual characteristics did not influence cortical excitability. Although the degree of interhemispheric difference varied (range: 0.2 to 4.3), depending on biological and behavioral characteristics, this variation was not significant (0.1 ≤ p ≤ 0.8). In conclusion, MT varied considerably between subjects. The difference between the hemisphere excitability that was less influenced by external factors, may be an alternative method of TMS measure to identify pathological changes of cortical excitability.

Evidence of the Homeostatic Regulation With the Combination of Transcranial Direct Current Stimulation and Physical Activity.

BACKGROUND: Transcranial direct current stimulation (tDCS) can optimize beneficial effects induced by motor practice in patients with neurological disorders. However, possibly because of homeostatic regulation, the conditioning effects of tDCS are often imprecise and variable, limiting its therapeutic application. OBJECTIVE: The aim of the study was to explore the magnitude and direction of the after effects induced by physical activity (PA) on tDCS-preconditioned cortical excitability (CE). DESIGN: First, a crossover experiment was performed with 12 subjects to determine whether a single session of low-, moderate-, and high-intensity PA on a treadmill modulates the motor CE measured by transcranial magnetic stimulation. In a second crossover experiment, we investigated long-lasting changes (until 90 mins) of the effects induced by PA (with intensities defined by the first experiment) on motor CE after the subject had been preconditioned by tDCS (using different polarities). RESULTS AND CONCLUSIONS: In experiment 1, we found that high- and moderate-intensity PA modulate the CE. Experiment 2 demonstrated that preconditioning the CE using tDCS homeostatically changes the direction and magnitude of after effects induced by subsequent PA plasticity caused by motor activity. In conclusion, the results suggest that the direction of after effects induced by the combination of physical exercise with tDCS on the CE is regulated within a physiologically defined range.

Proposal of a normative table for body fat percentages of Brazilian young adults through bioimpedanciometry.

Identification of the body fat (BF) percentage allows health professionals to detect healthy or risky patterns in a population. However, no studies have elaborated BF cutoff points using the bioelectrical impedance method in young Brazilian adults. Thus, the objective of the present study was to elaborate normative tables for BF in Brazilian men and women (sedentary and physically active) between 18 and 39 years of age. A total of 3,111 adults (958 men and 2,153 women) were evaluated using bioimpedance measurements with the InBody 520 device. The data were distributed normally and divided into percentiles (P3, P10, P25, P50, P75, P90, and P97). The following values were observed: for men: P3=8.9%-12.5%; P10=12.6%-17.5%; P25=17.6%-25.3%; P50=25.4%-35.1%; P75=35.2%-43.0%; P90=43.1%-49.4% and P97=49.5%; for women: P3=18.7%-23.1%; P10=23.2%-28.7%; P25=28.8%-35.7%; P50=35.8%-42.9%; P75=43.0%-49.1%; P90=49.2%-52.1% and P97≥52.2%. These percentiles can be used to classify the adiposity of sedentary and physically active individuals evaluated by bioimpedanciometry.