Influence of subacute physical exercise on medium- and long-chain fatty acid profile in serum of individuals with overweight.

OBJECTIVE: to test the hypothesis that acute physical exercise would change the fatty acids in the serum of individuals with increased body weight. METHOD: sixty-six sedentary women with excess weight were included in the sample (BMI = 29.6 ± 4.2). They were aged 24.4 ± 3.6 years and were randomly divided into control and exercise groups. After 12 hours fasting, basal blood collection was performed. Twelve hours after the first collection, the exercise group was submitted to a physical exercise session with energy expenditure of 250 kcal. The volunteers underwent a second blood collection 24 hours after the first one and dosed the fatty acids: pelargonic, azelaic, elaidic and oleic. RESULTS: physical exercise did not change the fatty acid profile response for both the intragroup analysis and intergroup analysis. Exercise group: pelargonic (before = 0.12 ± 0.06% vs after = 0.15 ± 0.14%, p = 0.507); azelaic (before = 20.3 ± 10.5% vs after = 27.7 ± 25.4%, p = 0.295); elaidic (before = 0.03 ± 0.01% vs after = 0.04 ± 0.01%, p = 0.328); oleic (before = 16.1 ± 7.4% vs after = 20.3 ± 14.6%, p = 0.236). CONTROL GROUP: pelargonic (before = 0.70 ± 0.45% vs after = 0.71 ± 0.51%, p = 0.776); azelaic (before = 62.1 ± 26% vs after = 57.1 ± 27%, p = 0.197); elaidic (before = 0.05 ± 0.02% mg/dl vs after = 0.05 ± 0.03%, p = 0.530); oleic (before = 26.8 ± 22.7% mg/dl vs after = 29.0 ± 22.4%, p = 0.525). CONCLUSION: in women with overweight, low intensity physical exercise is not capable of changing the medium-chain fatty acids in the first 12 hours.

Influence of subacute physical exercise on medium- and long-chain fatty acid profile in serum of individuals with overweight / Influencia del ejercicio físico subagudo en el perfil de ácidos grasos de cadena media y larga en individuos con sobrepeso

Objective: to test the hypothesis that acute physical exercise would change the fatty acids in the serum of individuals with increased body weight. Method: sixty-six sedentary women with excess weight were included in the sample (BMI = 29.6 ± 4.2). They were aged 24.4 ± 3.6 years and were randomly divided into control and exercise groups. After 12 hours fasting, basal blood collection was performed. Twelve hours after the first collection, the exercise group was submitted to a physical exercise session with energy expenditure of 250 kcal. The volunteers underwent a second blood collection 24 hours after the first one and dosed the fatty acids: pelargonic, azelaic, elaidic and oleic. Results: physical exercise did not change the fatty acid profile response for both the intragroup analysis and intergroup analysis. Exercise group: pelargonic (before = 0.12 ± 0.06% vs after = 0.15 ± 0.14%, p = 0.507); azelaic (before = 20.3 ± 10.5% vs after = 27.7 ± 25.4%, p = 0.295); elaidic (before = 0.03 ± 0.01% vs after = 0.04 ± 0.01%, p = 0.328); oleic (before = 16.1 ± 7.4% vs after = 20.3 ± 14.6%, p = 0.236). Control group: pelargonic (before = 0.70 ± 0.45% vs after = 0.71 ± 0.51%, p = 0.776); azelaic (before = 62.1 ± 26% vs after = 57.1 ± 27%, p = 0.197); elaidic (before = 0.05 ± 0.02% mg/dl vs after = 0.05 ± 0.03%, p = 0.530); oleic (before = 26.8 ± 22.7% mg/dl vs after = 29.0 ± 22.4%, p = 0.525). Conclusion: in women with overweight, low intensity physical exercise is not capable of changing the medium-chain fatty acids in the first 12 hours

Objetivo: probar la hipótesis de que ejercicio físico agudo cambiaría los ácidos grasos en el suero de las personas con mayor peso corporal. Método: se incluyeron en la muestra sesenta y seis mujeres sedentarias con exceso de peso (IMC = 29.6 ± 4.2). Tenían una edad de 24,4 ± 3,6 años y se dividieron aleatoriamente en grupos de control y ejercicio. Después de 12 horas de ayuno, se realizó la extracción de sangre basal. Doce horas después de la primera extracción, el grupo de ejercicio se sometió a una sesión de ejercicio físico con un gasto de energía de 250 kcal. Los voluntarios se sometieron a una segunda extracción de sangre 24 horas después de la primera con dosificación de los ácidos grasos: pelargónico, azelaico, elaídico y oleico. Resultados: el ejercicio físico no modificó la respuesta del perfil de ácidos grasos para el análisis intragrupo y el análisis intergrupo. Ejercicio grupo: pelargónico (antes = 0,12 ± 0,06% vs después = 0,15 ± 0,14%, p = 0,507); azelaico (antes = 20,3 ± 10,5% vs después = 27,7 ± 25,4%, p = 0,295); elaídico (antes = 0,03 ± 0,01% vs después = 0,04 ± 0,01%, p = 0,328); oleico (antes = 16,1 ± 7,4% vs después = 20,3 ± 14,6%, p = 0,236). Grupo de control: pelargónico (antes = 0,70 ± 0,45% vs después = 0,71 ± 0,51%, p = 0,776); azelaico (antes = 62,1 ± 26% vs después = 57,1 ± 27%, p = 0,197); elaídico (antes = 0,05 ± 0,02% mg/dl vs después = 0,05 ± 0,03%, p = 0,530); oleico (antes = 26.8 ± 22,7% mg/dl vs después = 29,0 ± 22,4%, p = 0,525). Conclusión: en mujeres con sobrepeso, el ejercicio físico de baja intensidad no produce ningún cambio en los ácidos grasos de cadena media en las primeras 12 horas

Metabolic Reponses to a physical exercise session in women with excess body mass: randomized clinical trial.

BACKGROUND: There are various factors that influence the effect of physical exercise on the lipid profile, among them the body mass index and calorie expenditure of the exercise are some of the main factors. To test the hypothesis that a physical exercise session based on caloric expenditure may acutely modify the glycemia and lipid values of women with excess body mass. METHODS: The study included 66 women, randomly divided into two groups, control and experimental, with BMI of 29 ± 4.4 kg/m2 vs 29 ± 4.3 kg/m2 (p = 0.45) sedentary and aged 23 ± 3.8 vs 24 ± 3.5 years, respectively (p = 0.25). After 12 h fasting, the volunteers underwent the first blood collection. The experimental group was submitted to a physical exercise session corresponding to energy expenditure of 250Kcal, of light intensity based the Borg Rating of Perceived Exertion (RPE), 12 h after the first blood collection. The control and experimental group volunteers underwent a second blood collection 24 h after the first. Glycemia, insulin status and lipid profile were measured and Homa IR and Homa-beta were calculated. The t-test for independent and dependent samples was used, and a level of significance of 5% was adopted. RESULTS: Physical exercise changed the glycemic response in both the intragroup analysis (before = 96 ± 6.6 mg/dL vs after = 92 ± 6.6 mg/dL), (p = 0.01), and in the intergroup analysis (control = Δ 0.9 ± 6.1 vs experimental = Δ -4.1 ± 6.3) (p = 0.02). No changes were shown for the Homa IR, Homa Beta and Insulin indexes. When the lipid profiles were evaluated, differences in HDL were shown in the intragroup analysis (before = 89 ± 10.5 mg/dL vs. after = 91 ± 10.3 mg/dL) (p = 0.04). For the other parameters (LDL, TG, Total Cholesterol, TG/HDL), no changes were shown. CONCLUSION: In women with excess body weight, a low intensity exercise session diminished the glycemia, but did not change the lipid response. TRIAL REGISTRATION: NCT03170973 . Retrospectively registered.

Proteína C-reativa na fase inicial da lipemia pós-prandial em indivíduos com obesidade central / C-Reactive protein in the initial phase of postprandial lipemia in subjects with central obesity

Fundamentos: Estudos apontam que durante a lipemia pós-prandial (LPP) ocorre formação de radicais livres estimulando o endotélio a secretar citocinas que vão mediar a resposta inflamatória. O excesso de tecido adiposo, especialmente na região abdominal, correlaciona-se positivamente com os valores da proteína C-reativa (PCR). No entanto, pouco se sabe sobre a variação da PCR na fase inicial da LPP especialmente em indivíduos obesos. Objetivo: Verificar se existe variação na concentração plasmática da PCR na fase inicial da LPP em indivíduos com obesidade central. Métodos: Avaliados 40 indivíduos de ambos os sexos, sedentários, sem alteração do perfil lipídico de jejum e comcircunferência de cintura acima do ponto de corte considerado normal. Em jejum de 12 horas e três horas após a ingestão de 50g de gordura foi dosada a PCR. Resultados: Os valores da mediana da PCR de jejum e três horas após a ingestão de lipídeos foram, respectivamente: 0,6 mg/L (0,2-1,8 mg/L) e 0,4 mg/L (0,2-1,8 mg/L) (p=1,000). Conclusão: Neste estudo a fase inicial da LPP não induziu variação da concentração da PCR em indivíduos com obesidade central.

Background: Studies indicate that during postprandial lipemia (PPL), free radical formation occurs, stimulating the endothelium to secrete cytokines that mediate inflammatory responses. Excess adipose tissue, especially in the abdominal region, is positively correlated with C-reactive protein (CRP) values. However, little is known about CRP variations during the initial phase of PPL, especially among obese individuals. Objective: To determine if there are variations in CRP plasma concentrations among individuals with central obesity during the initial phase of PPL. Methods: This study assessed forty sedentary men and women with no alterations to fasting lipid profiles and waist circumferences above the normal cut off point, measuring their CRP levels after fasting for twelve hours and three hours after ingesting 50g of fat. Results: The mean CRP values after fasting and three hours after lipids intake were 0.6 mg/L (0.2 to 1.8 mg/L) and 0.4 mg/L(0.2 to 1.8mg/L) (p=1.000) respectively. Conclusion: In this study, the initial phase of PPL did not present any variations in CRP concentrations among subjects with central obesity.

Atividade física comparada a atividade física no tempo livre como fator de proteção à hipertensão arterial sistêmica / Physical activity compared to physical actyvity on free as protection factor for blood hipertension

Este estudo tem como objetivo comparar a atividade física no tempo livre com atividade física em geral (transportes, actividades piscatórias domésticos, de trabalho e sempre lazer) como um fator de proteção para a hipertensão arterial. Esta é uma epidemiológicaestudo transversal seccional. Os sujeitos foram 95 mulheres. Foi utilizado o questionário internacional de atividade física como instrumento para coletar dados. A divisão entre as pessoas, ativos e sedentários foi de 1000 kcal para o lazer e 2000 kcal no total. Os dados foram analisados ​​com a regressão logística para identificar o Odds Ratio (OR) entre atividade física no total, físico atividade no tempo livre e hipertensão arterial. Apenas a associação brut entre atividade física do tempo livre e hipertensão demonstrou efeito de proteção (OR = 0,30, IC = 0,14-0,64). A associação entre atividade física no total e hipertensão não mostraram efeito de proteção. depois estatística ajustar para a idade da associação losed sua significância estatística. é percebida no final deste estudo, que apenas a actividade física no tempo livre efeito protector demonstred para a emergência de hipertensão, mas quando a idade foi considerado no modelo não existia a associação. Novos estudos poderão ser feita de modo que os resultados podem ser alargados a população em geral.

This study has as its goal to compare the physical activity on the free time with physical activity in general (transport, domestic activies, work always and leisure) as a protection factor for blood hypertension. This is an epidemiologic study cross seccional. The subjects were 95 women. It was utilized the international questionnaire for physical activity as the instrument for collect data. The division between active and sedentary persons was 1000 kcal for leisure and 2000 kcal in the total. The data was analyzed with the logistic regression to identify the Odds Ratio (OR) between physical activity in the total, physical activity in the free time and blood hypertension. Only the brut association between physical activity of the free time and hypertension demonstrated protection effect (OR = 0.30, IC = 0.14 – 0.64). The association between physical activity in the total and hypertension didn’t show protection effect. After statistic adjust for age the association losed their statistic significance. It’s perceived at the end of this study that only the physical activity in the free time demonstred protective effect to the emergence of hypertension, but when age was considered in the model the association didn’t exist. New studies may be done so the results may be extended to general population.