Fabrícia Geralda Ferreira

Efeito do nível de condicionamento físico e da hidratação oral sobre a homeostase hídrica em exercício aeróbico

The objective was to evaluate the influence of the level of physical conditioning on the hydration status and the efficiency of the intake of 3 mL of water / kg of body weight to maintain the euhydration of athletes or healthy active individuals. Two groups of subjects consisting of 15 male athletes {VO2max 68 ± 5.4 mL (kg.min)-1} and 15 healthy active male subjects {VO2max 50.3 ± 6.3 mL (kg.min)-1} were evaluated. The hydration status was diagnosed through monitoring of body weight, specific gravity of the urine and the hematocrit during 80 minutes of treadmill running. 3 mL of water / kg of body weight were drunk during the activity. The environmental conditions of the test were 21.9 + 1.5 °C and 89.2 ± 5.6 % relative air humidity (RAH) for the athletes and 21.8 ± 1.6°C and 93.2 ± 3.5 % RAH for the active subjects. The average percentage of dehydration and the relative weight loss were significantly greater in the athletes (2.15 ± 0.7 % and 1.3 ± 0.5 kg), compared to the active subjects (1.03 ± 0.7 % and 0.74 ± 0.43 kg), respectively. The specific gravity of the urine increased significantly only in the athletes, while the hematocrit did not vary significantly between groups. Considering the conditions of the test, it was concluded that the higher level of conditioning allowed a lower hydration status and that, although the hydric loss had not reached critical levels, the strategy of hydration utilizing 3 mL of water / kg of body weight was not sufficient to maintain the subjects here completely euhydrated.The objective was to evaluate the influence of the level of physical conditioning on the hydration status and the efficiency of the intake of 3 mL of water / kg of body weight to maintain the euhydration of athletes or healthy active individuals. Two groups of subjects consisting of 15 male athletes {VO2max 68 ± 5.4 mL (kg.min)-1} and 15 healthy active male subjects {VO2max 50.3 ± 6.3 mL (kg.min)-1} were evaluated. The hydration status was diagnosed through monitoring of body weight, specific gravity of the urine and the hematocrit during 80 minutes of treadmill running. 3 mL of water / kg of body weight were drunk during the activity. The environmental conditions of the test were 21.9 + 1.5 °C and 89.2 ± 5.6 % relative air humidity (RAH) for the athletes and 21.8 ± 1.6°C and 93.2 ± 3.5 % RAH for the active subjects. The average percentage of dehydration and the relative weight loss were significantly greater in the athletes (2.15 ± 0.7 % and 1.3 ± 0.5 kg), compared to the active subjects (1.03 ± 0.7 % and 0.74 ± 0.43 kg), respectively. The specific gravity of the urine increased significantly only in the athletes, while the hematocrit did not vary significantly between groups. Considering the conditions of the test, it was concluded that the higher level of conditioning allowed a lower hydration status and that, although the hydric loss had not reached critical levels, the strategy of hydration utilizing 3 mL of water / kg of body weight was not sufficient to maintain the subjects here completely euhydrated.

Visceral adiposity index associated with behavioral and inflammatory parameters in adults: a population based study

INTRODUCTION the visceral adiposity index (VAI) is an indicator of fat distribution and function which is considered a predictor of cardiometabolic risk. OBJECTIVE analyze the factors associated with VAI in Brazilian adults. METHODS a cross-sectional population-based study was conducted with 854 adults, in Viçosa, MG, Brazil. A questionnaire was applied and anthropometric measurements, body composition and biochemical data were collected. Ordinal logistic regression was used to evaluate the factors associated with VAI. RESULTS the increase in percentage of fat, uric acid concentration and ultra-sensitive C reactive protein in the blood was positively associated with VAI in males. The level of physical activity in leisure was negatively associated. Among women, the increase in age, neck circumference, sitting time of more than 300 minutes, increased serum uric acid concentration and ultra-sensitive C reactive protein were associated with VAI. CONCLUSION except for age, all other factors associated with VAI are modifiable, suggesting that adopting early intervention measures that promote changes in habits and alter the risk of increased visceral adiposity and consequently the appearance of comorbidities should be encouraged.

Association of eating patterns and abdominal adiposity in Brazilian

Objective To examine the relationship between dietary patterns and abdominal adiposity among adults living in the urban area of Viçosa, Minas Gerais, Brazil.

Chronic joint symptoms in adults: A population-based study

OBJECTIVE To analyze factors associated with chronic joint symptoms (CJS) in adults. METHOD A population-based, cross-sectional study was performed with a sample of 1,217 adults aged between 20 and 59 years, in the city of Viçosa, in 2014. The sampling process was performed by conglomerates and sample was selected using a two-stage cluster-sampling scheme. First, 30 of the 99 census tracts of Viçosa were randomly selected using a random sampling scheme, without replacement. Household questionnaires were applied to obtain CJS data, sociodemographic conditions, behavioral factors and health status. Multivariable analysis was conducted using Poisson regression, adjusted for the sampling design effect, using the svy commands in Stata software. RESULTS Prevalence of CJS totaled 31.27%, significantly higher in women (18.45). Age ranges 40-49 (PR 1.50; 95CI 1.16-1.92) and 50-59 years (PR 1.55; 95CI 1.07-2.25); overweight (PR 1.60; 95CI 1.28-2.00); obesity (PR 1.60; 95CI 1.11-2.29); and those who self-reported performing heavy work (PR 1.27; 95CI 1.09-1.48) showed higher prevalences of CJS. CONCLUSION Women and individuals who were older, overweight and performing heavy work had a higher risk of CJS in this adult population residing in Viçosa, MG, Brazil.

ELECTROLYTIC LOSS OF CALCIUM, MAGNESIUM AND IRON IN THE SWEAT DURING RUNNING IN A TREADMILL

Introduction: Sweat and its consequent evaporation are essential for maintaining body temperature during the exercise. Objective: To evaluate the loss of calcium (Ca++), magnesium (Mg++) and iron (Fe++) in the sweat of runners and active individuals. Methods: Fifteen long-distance-runners {VO2máx = 68 ± 5.4 ml (kg.min)-1} and 15 nonathletes active subjects {VO2máx = 50.3 ± 6.3 ml (kg.min)-1} with mean ages of 25.3 ± 2.4 and 23.1 ± 4.3 years, respectively. Both groups exercised for 80 minutes on a treadmill, with intensity of 75-85% of reserve heart rate, and ingested 3 ml of water/kg of body weight every 15 minutes. The environmental conditions of the test were 21.9 ± 1.5 °C and 89.2 ± 5.6% relative humidity for athletes and 21.8 ± 1.6 °C and 93.2 ± 3.5% RH for active individuals. The sweat samples were collected at regular intervals of 20 minutes in the chest, thoracic and lower back regions for further analysis of the minerals Ca++, Mg++ and Fe++ by atomic absorption spectrophotometer. Results: No significant differences were recorded for the minerals in relation to fitness level. There was a tendency for a decrease in Mg++ and Fe++ concentrations of sweat over the course of the exercise. Conclusion: In the environmental and exercise conditions studied, the conditioning does not interfere in the loss of Ca++, Mg++ and Fe++.Introduccion: El sudor y su consecuente evaporacion son esenciales para mantener la temperatura corporal durante el ejercicio. Objetivo: Evaluar la perdida de calcio (Ca++), magnesio (Mg++) y hierro (Fe++) en el sudor en corredores y personas activas. Metodos: Se evaluaron 15 corredores de larga distancia {VO2max = 68 ± 5,4 ml (kg.min)-1} y 15 individuos activos no atletas {VO 2 max = 50,3 ± 6,3 ml (kg.min)-1}, con promedio de edades de, respectivamente, 25,3 ± 2,4 e 23,1 ± 4,3 anos. Ambos grupos hicieron ejercicio durante 80 minutos en una cinta rodante con una intensidad del 75% al 85% de la frecuencia cardiaca de reserva, siendo hidratados con 3 ml de agua/Kg de peso corporal cada 15 minutos. Las condiciones ambientales de la prueba fueron 21,9 ± 1,5 °C y 89,2 ± 5,6% de humedad relativa para los atletas y 21,8 ± 1,6 °C y 93,2 ± 3,5% de HR para los sujetos activos. Las muestras de sudor se recogieron a intervalos regulares de 20 minutos en las regiones del pecho, toracica y lumbar de la espalda para el analisis del Ca++, Mg++y Fe++ por espectrofotometria de absorcion atomica. Resultados: No se observaron diferencias significativas para los minerales en funcion del nivel de acondicionamiento. Hubo una tendencia a la disminucion de la concentracion de Mg++ y Fe++ en el sudor durante el ejercicio. Conclusion: En el ejercicio estudiado y las condiciones ambientales, el acondicionamiento no interfiere en la perdida de Ca++, Mg++ y Fe++.

PERDA ELETROLÍTICA DE CÁLCIO, MAGNÉSIO E FERRO NO SUOR DURANTE CORRIDA EM ESTEIRA

Introduction: Sweat and its consequent evaporation are essential for maintaining body temperature during the exercise. Objective: To evaluate the loss of calcium (Ca++), magnesium (Mg++) and iron (Fe++) in the sweat of runners and active individuals. Methods: Fifteen long-distance-runners {VO2máx = 68 ± 5.4 ml (kg.min)-1} and 15 nonathletes active subjects {VO2máx = 50.3 ± 6.3 ml (kg.min)-1} with mean ages of 25.3 ± 2.4 and 23.1 ± 4.3 years, respectively. Both groups exercised for 80 minutes on a treadmill, with intensity of 75-85% of reserve heart rate, and ingested 3 ml of water/kg of body weight every 15 minutes. The environmental conditions of the test were 21.9 ± 1.5 °C and 89.2 ± 5.6% relative humidity for athletes and 21.8 ± 1.6 °C and 93.2 ± 3.5% RH for active individuals. The sweat samples were collected at regular intervals of 20 minutes in the chest, thoracic and lower back regions for further analysis of the minerals Ca++, Mg++ and Fe++ by atomic absorption spectrophotometer. Results: No significant differences were recorded for the minerals in relation to fitness level. There was a tendency for a decrease in Mg++ and Fe++ concentrations of sweat over the course of the exercise. Conclusion: In the environmental and exercise conditions studied, the conditioning does not interfere in the loss of Ca++, Mg++ and Fe++.Introduccion: El sudor y su consecuente evaporacion son esenciales para mantener la temperatura corporal durante el ejercicio. Objetivo: Evaluar la perdida de calcio (Ca++), magnesio (Mg++) y hierro (Fe++) en el sudor en corredores y personas activas. Metodos: Se evaluaron 15 corredores de larga distancia {VO2max = 68 ± 5,4 ml (kg.min)-1} y 15 individuos activos no atletas {VO 2 max = 50,3 ± 6,3 ml (kg.min)-1}, con promedio de edades de, respectivamente, 25,3 ± 2,4 e 23,1 ± 4,3 anos. Ambos grupos hicieron ejercicio durante 80 minutos en una cinta rodante con una intensidad del 75% al 85% de la frecuencia cardiaca de reserva, siendo hidratados con 3 ml de agua/Kg de peso corporal cada 15 minutos. Las condiciones ambientales de la prueba fueron 21,9 ± 1,5 °C y 89,2 ± 5,6% de humedad relativa para los atletas y 21,8 ± 1,6 °C y 93,2 ± 3,5% de HR para los sujetos activos. Las muestras de sudor se recogieron a intervalos regulares de 20 minutos en las regiones del pecho, toracica y lumbar de la espalda para el analisis del Ca++, Mg++y Fe++ por espectrofotometria de absorcion atomica. Resultados: No se observaron diferencias significativas para los minerales en funcion del nivel de acondicionamiento. Hubo una tendencia a la disminucion de la concentracion de Mg++ y Fe++ en el sudor durante el ejercicio. Conclusion: En el ejercicio estudiado y las condiciones ambientales, el acondicionamiento no interfiere en la perdida de Ca++, Mg++ y Fe++.

PÉRDIDA ELECTROLÍTICA DE CALCIO, MAGNESIO Y HIERRO EN EL SUDOR DURANTE CARRERA EN CINTA RODANTE

Introduction: Sweat and its consequent evaporation are essential for maintaining body temperature during the exercise. Objective: To evaluate the loss of calcium (Ca++), magnesium (Mg++) and iron (Fe++) in the sweat of runners and active individuals. Methods: Fifteen long-distance-runners {VO2máx = 68 ± 5.4 ml (kg.min)-1} and 15 nonathletes active subjects {VO2máx = 50.3 ± 6.3 ml (kg.min)-1} with mean ages of 25.3 ± 2.4 and 23.1 ± 4.3 years, respectively. Both groups exercised for 80 minutes on a treadmill, with intensity of 75-85% of reserve heart rate, and ingested 3 ml of water/kg of body weight every 15 minutes. The environmental conditions of the test were 21.9 ± 1.5 °C and 89.2 ± 5.6% relative humidity for athletes and 21.8 ± 1.6 °C and 93.2 ± 3.5% RH for active individuals. The sweat samples were collected at regular intervals of 20 minutes in the chest, thoracic and lower back regions for further analysis of the minerals Ca++, Mg++ and Fe++ by atomic absorption spectrophotometer. Results: No significant differences were recorded for the minerals in relation to fitness level. There was a tendency for a decrease in Mg++ and Fe++ concentrations of sweat over the course of the exercise. Conclusion: In the environmental and exercise conditions studied, the conditioning does not interfere in the loss of Ca++, Mg++ and Fe++.Introduccion: El sudor y su consecuente evaporacion son esenciales para mantener la temperatura corporal durante el ejercicio. Objetivo: Evaluar la perdida de calcio (Ca++), magnesio (Mg++) y hierro (Fe++) en el sudor en corredores y personas activas. Metodos: Se evaluaron 15 corredores de larga distancia {VO2max = 68 ± 5,4 ml (kg.min)-1} y 15 individuos activos no atletas {VO 2 max = 50,3 ± 6,3 ml (kg.min)-1}, con promedio de edades de, respectivamente, 25,3 ± 2,4 e 23,1 ± 4,3 anos. Ambos grupos hicieron ejercicio durante 80 minutos en una cinta rodante con una intensidad del 75% al 85% de la frecuencia cardiaca de reserva, siendo hidratados con 3 ml de agua/Kg de peso corporal cada 15 minutos. Las condiciones ambientales de la prueba fueron 21,9 ± 1,5 °C y 89,2 ± 5,6% de humedad relativa para los atletas y 21,8 ± 1,6 °C y 93,2 ± 3,5% de HR para los sujetos activos. Las muestras de sudor se recogieron a intervalos regulares de 20 minutos en las regiones del pecho, toracica y lumbar de la espalda para el analisis del Ca++, Mg++y Fe++ por espectrofotometria de absorcion atomica. Resultados: No se observaron diferencias significativas para los minerales en funcion del nivel de acondicionamiento. Hubo una tendencia a la disminucion de la concentracion de Mg++ y Fe++ en el sudor durante el ejercicio. Conclusion: En el ejercicio estudiado y las condiciones ambientales, el acondicionamiento no interfiere en la perdida de Ca++, Mg++ y Fe++.