Short term creatine loading improves strength endurance even without changing maximal strength, RPE, fatigue index, blood lactate, and mode state.

Creatine is consumed by athletes to increase strength and gain muscle. The aim of this study was to evaluate the effects of creatine supplementation on maximal strength and strength endurance. Twelve strength-trained men (25.2 ± 3.4 years) supplemented with 20 g Creatina + 10g maltodextrin or placebo (20g starch + 10g maltodextrin) for five days in randomized order. Maximal strength and strength endurance (4 sets 70% 1RM until concentric failure) were determined in the bench press. In addition, blood lactate, rate of perceived effort, fatigue index, and mood state were evaluated. All measurements were performed before and after the supplementation period. There were no significant changing in maximal strength, blood lactate, RPE, fatigue index, and mood state in either treatment. However, the creatine group performed more repetitions after the supplementation (Cr: Δ = +3.4 reps, p = 0.036, g = 0.53; PLA: Δ = +0.3reps, p = 0.414, g = 0.06), and higher total work (Cr: Δ = +199.5au, p = 0.038, g = 0.52; PLA: Δ = +26.7au, p = 0.402, g = 0.07). Creatine loading for five days allowed the subjects to perform more repetitions, resulting in greater total work, but failed to change the maximum strength.

Sodium bicarbonate improved CrossFit® Benchmark Fran, but not subsequent 500 m rowing performance.

The aim of this study was to evaluate the influence of sodium bicarbonate (SB) supplementation on physical performance, neuromuscular and metabolic responses during CrossFit® exercise. Seventeen Advanced CrossFit®-trained athletes completed the randomized, double-blind, placebo-controlled crossover protocol consisting of four visits, including two familiarization sessions and two experimental trials separated by a 7-day washout period. Participants supplemented 0.3 g/kg body mass (BM) of SB or placebo 120-min prior to performing the CrossFit® benchmark Fran followed by 500 m of rowing. SB improved time to complete Fran compared to PLA (291.2 ± 71.1 vs. 303.3 ± 77.8 s, p = 0.047), but not 500 m rowing (112.1 s ± 7.9 vs. 113.2 s ± 8.9 s, p = 0.26). No substantial side-effects were reported during the trials. This study showed that SB improved CrossFit® benchmark Fran performance, but not subsequent 500-m rowing. These data suggest that SB might be an interesting supplementation strategy for CrossFit® athletes.

Detection of Failures in Metal Oxide Surge Arresters Using Frequency Response Analysis.

This work presents an innovative application of Frequency Response Analysis (FRA) in order to detect early degradation of Metal Oxide Surge Arresters (MOSAs). This technique has been widely used in power transformers, but has never been applied to MOSAs. It consists in comparisons of spectra, measured at different instants of the lifetime of the arrester. Differences between these spectra are an indicator that some electrical properties of the arrester have changed. An incremental deterioration test has been performed on arrester samples (with controlled circulation of leakage current, which increases the energy dissipation over the device), and the FRA spectra correctly identified the progression of damage. Although preliminary, the FRA results seemed promising, and it is expected that this technology could be used as another diagnostic tool for arresters.

A Bibliometric and Comprehensive Review on Condition Monitoring of Metal Oxide Surge Arresters.

This paper presents a literature review on the subject of Condition-Based Maintenance of surge arresters. Both a bibliometric analysis and traditional comprehensive research are presented. The bibliometric analysis is useful for obtaining insights about the literature. It quantitatively highlights relationships between journals, authors and keywords (related to the monitoring methods) and reveals future trends for research based on the timeline of the keywords. The traditional comprehensive literature review is also presented. It summarizes the methods, their advantages and disadvantages and also points to some known measurement issues of the methods. Both online (leakage current, harmonic components, temperature, partial discharges, power loss and the counting of discharges) and offline (reference voltage, residual voltage, insulation resistance, polarization/depolarization, return voltage, microscopy, spectrometry, X-ray, RUS and the recent application of FRA) methods have been qualitatively analyzed.

An Ultrasonic-Capacitive System for Online Characterization of Fuel Oils in Thermal Power Plants.

This paper presents a ultrasonic-capacitive system for online analysis of the quality of fuel oils (FO), which are widely used to produce electric energy in Thermal Power Plants (TPP) due to their elevated heating value. The heating value, in turn, is linked to the quality of the fuel (i.e., the density and the amount of contaminants, such as water). Therefore, the analysis of the quality is of great importance for TPPs, either in order to avoid a decrease in generated power or in order to avoid damage to the TPP equipment. The proposed system is composed of two main strategies: a capacitive system (in order to estimate the water content in the fuel) and an ultrasonic system (in order to estimate the density). The conjunction of the two strategies is used in order to estimate the heating value of the fuel, online, as it passes through the pipeline and is an important tool for the TPP in order to detect counterfeit fuel. In addition, the ultrasonic system allows the estimation of the flow rate through the pipeline, hence estimating the amount of oil transferred and obtaining the total mass transferred as a feature of the system. Experimental results are provided for both sensors installed in a TPP in Brazil.

Online Frequency Response Analysis of Electric Machinery through an Active Coupling System Based on Power Electronics.

This paper presents an innovative concept for the online application of Frequency Response Analysis (FRA). FRA is a well known technique that is applied to detect damage in electric machinery. As an offline technique, the machine under testing has to be removed from service-which may cause loss of production. Experimental adaptations of FRA to online operation are usually based on the use of passive high pass coupling-which, ideally, should provide attenuation to the grid voltage, and at the same time, allow the high frequency FRA signals to be injected at the machine. In practice, however, the passive coupling results in a trade-off between the required attenuation and the useful area obtained at the FRA spectra. This paper proposes the use of an active coupling system, based on power electronics, in order to cancel the grid voltage at the terminals of FRA equipment and allow its safe connection to an energized machine. The paper presents the basic concepts of FRA and the issue of online measurements. It also presents basic concepts about power electronics converters and the operating principles of the Modular Multilevel Converter, which enables the generation of an output voltage with low THD, which is important for tracking the grid voltage with minimum error.

Effects of sprouted and fermented quinoa (Chenopodium quinoa) on glycemic index of diet and biochemical parameters of blood of Wistar rats fed high carbohydrate diet.

Sprouted and fermented foods have shown hypoglycemic effects on humans and animals, by reducing concentrations of soluble carbohydrates, and increasing dietary fiber and resistant starch content. In this study, diets with high levels of simple carbohydrates supplemented with toasted quinoa flour, sprouted and toasted quinoa flour, fermented and toasted quinoa flour or sprouted/fermented and toasted quinoa flour were given to Wistar rats. During the experiment, the glycemic index (GI) of the diets were measure and, at the end of 47 days of feeding, the effects of the diets on physical and biochemical parameters of the animals were evaluated. Results indicated that the processes of sprouting and/or fermentation potentiate the ability of quinoa to reduce GI of diets with high levels of simple carbohydrates. Moreover, food intake, blood glucose and lipid levels, and accumulation of epididymal adipose tissue were reduced in rats fed diets supplemented with quinoa. These effects may be due to the nutritional composition of the supplemented diets, besides the chemical changes promoted by processing quinoa. These results are particularly relevant once sprouted and fermented quinoa could be an alimentary source of interest, especially for disease risk prevention such as diabetes, obesity and dyslipidemias.

Artroplastia total de cadera posterior a una infección por tuberculosis: caso clínico y revisión de la literatura / Total hip arthroplasty for the treatment of tuberculosis: case report and literature review

La tuberculosis persiste siendo un problema importante a nivel mundial. A pesar de que el compromiso de la cadera es infrecuente, su aparición representa un escenario complejo. Presentamos un paciente masculino que desarrolló una infección de la cadera que fue diagnosticada como tuberculosis de forma tardía. El paciente recibió tratamiento médico por 6 meses y luego se realizó una artroplastia total de cadera en dos tiempos, con éxito. Presentamos el reporte de un caso completo, junto a su seguimiento al aão y una revisión de la literatura sobre el tema.

Tuberculosis remains a significant problem worldwide. Even thought hip involvement is an infrequent manifestation, it́s appearance represents a challenging scenario. We present a male patient who developed a hip infection later discovered to be tuberculosis. The patient received a medical treatment protocol for 6 months and was subsequently treated with a two stage total hip arthroplasty. We present the full case report with it́s 1-year outcome and a literature review.

Drinking to thirst influences fluid replacement in adolescents judokas

AIM: The aim of this study was to examine the influence of the type of beverage and the use of thirst sensation to guide fluid replacement in the adolescent judokas. METHODS: Nine male judokas aged 10-16 (average age 11,8 ± 4,0 years old) were submitted to a standardized training of 90 minutes. In the first phase of the study, the athletes completed the training with ingestion ad libitum of different beverages: day 1 (water) and after 48 hours, day 2 (sports drink). In the second phase, after 7 days of first stage, the athletes completed the training with ingestion of water or sports drink, guided by thirst sensation. The total volume of liquids ingested (VI) during the training was quantified and the level of dehydration was determined by variation of body weight before and after training (∆W). At the end of each training, the athletes were asked about the training intensity to determine perceived exertion (PE). RESULTS: No differences were observed in weight loss (∆W) (range: -0,04 ± 0,4 to -0,69 ± 1,1 %) and perceived exertion (range: 3,2 to 5,0). The use of thirst sensation to guide fluid replacement reduced the total fluid intake when the beverage offered was the sports drink (no thirst vs. thirst sensation, 521,1 ± 290 vs 152,2 ± 187 mL - p=0,006). CONCLUSION: The results suggest that fluid replacement guided by thirst sensation can be influenced by the type of beverage offered.(AU)

Characterization of chemical and mineral composition of marolo (Annona crassiflora Mart) during physiological development

Abstract Maroleiro (Annona crassiflora Mart), belonging to the family of Annonaceae is a typical specie of the Cerrado and has occurred in most states. For fruit characteristics "sui generis", with significant nutritional value. This study aimed to characterize the marolo (Anonna crasiflora Mart) during fruit development, through the evaluation of its proximal and mineral composition. The fruits 2012/2013 season, were picked to 12Km from the city of Itumirim, southern Minas Gerais, in intervals of 20 days from anthesis to maturity, and the first fruits were harvested 60 days after anthesis. The flowering marolo began in late September 2012, with fruiting initially observed at the end of October, with peak production at the end of February and beginning of March 2013 The fruits were harvested in the morning and carried to the laboratory, where followed up the moisture, ether extract, protein, ash, fiber and high sugar fraction beyond mineral quantification of them. During development reductions in moisture content and protein increments of ether extract, crude fiber and high sugar fraction and an oscillation in the mineral along the developmental stages was observed.

Medida da velocidade de condução nervosa motora em praticantes de três diferentes modalidades esportivas / Measurement of motor nerve conduction velocity in three different sports

INTRODUÇÃO: Estudos da condução nervosa têm sido focados para o público em geral, porém não para atletas, havendo carência de informações sobre medidas da velocidade de condução nervosa motora (VCNM) em indivíduos treinados, especialmente quando diferentes esportes são comparados. OBJETIVO: Medir a VCNM do nervo mediano e fibular comum, em três grupos de modalidades esportivas. Métodos: Foram analisados: um grupo de meio-fundistas (Gmf, n = 6), um grupo de velocistas (Gvel, n = 4) e um grupo de jogadores de handebol (Ghan, n = 5) e comparados com um grupo controle (Gcon, n = 9). Cada voluntário foi submetido a um único exame, no qual foram obtidos os dados para calcular a VCNM dos membros inferiores do Gmf e do Gvel, dos membros superiores do Ghan, e membros superiores e inferiores do Gcon. Os dados da pesquisa apresentaram distribuição normal e variâncias homogêneas, assim, utilizamos o teste t de Student para amostras independentes na comparação das médias da VCNM dos grupos de atletas com as do Gcon e as do Gvel com as do Gmf (comparações intergrupo). O teste t pareado foi usado para comparar as médias da VCNM entre membro dominante (Md) e membro não dominante (Mnd) (comparações intragrupo). RESULTADOS: Na análise intergrupo foram encontradas diferenças significativas nas comparações entre o Gvel e o Gcon e entre o Gmf e o Gcon (diferença apenas nas comparações entre os Md's). Por outro lado, a análise intragrupo, exibiu diferença significativa apenas nas comparações entre Md e Mnd do Ghan. CONCLUSÃO: O estudo sugere que a VCNM é beneficiada pelo esforço físico, principalmente em esportes com uso predominante dos membros inferiores, e que a maior utilização de um membro superior sobre outro pode levar a diferença significativa nos valores da VCNM do Md e Mnd.

INTRODUCTION: Electrodiagnostic tests such as nervous conduction studies are mainly aimed at the general public, not at athletes. Therefore, information about motor nervous conduction velocity (MNCV) is scarce for trained subjects, especially when different sports are compared. OBJECTIVE: to measure the MNCV of the median and common fibular nerves in three groups of sport modalities. Methods: A group of middle distance runners (M RG, n=6), a group of sprinter runners (S RG, n=4) and a group of handball players (H G, n=5) were analyzed and compared to a control group (C G, n=9). Each volunteer was submitted to a single examination where data necessary to measure MNCV from the lower limbs of M RG and of S RG; upper limbs of H G and both upper and lower limbs of C G were collected. Data analysis presented normal distribution and homogeneous variances in all cases; therefore, a Student's t test for independent samples was used to compare means of MNCV of the athlete groups and the C G, as well as in the mean comparison of S RG and M RG (intergroup comparison). The paired Student's t test was used to compare MNCV means of the dominant limb (DL) and non-dominant limb (NDL) (intragroup comparison). RESULTS: Significant differences were found in the comparison between S RG and CG and between M RG and CG, but only in the DL comparison in the last case. On the other hand, in the intragroup comparison, there was significant difference only in the comparison between D L and N DL of the H G. CONCLUSION: This study suggests that MNCV benefits from physical exercise, especially in those sports where lower limbs are predominantly used. It also suggests that greater use of one upper limb over the other could lead to significant differences in MNCV values of D L and N DL.

Precisão da instalação de implantes com guias cirúrgicos obtidos por estereolitografia / On the accuracy of stereolithographic-guided dental implant placement: a clinical study

O presente estudo in vivo propôs avaliar a precisão de instalação de 23 implantes sem retalhos empregando guias cirúrgicos obtidos por estereolitografia em quatro pacientes com maxilas totalmente desdentadas. Após duplo escaneamento com tomografia computadorizada tipo cone-beam, o planejamento pré-cirúrgico foi realizado com o programa Procera. Depois da cirurgia, realizou-se a comparação entre as posições dos implantes planejados e executados através de tomografia computadorizada pós-operatória. Para comparação da posição e dos longos eixos das imagens dos implantes foram eleitos três pontos em cada implante planejado e executado: no centro do limite coronário (D1), no centro da porção central (D2), no centro do limite apical (D3). Assim, as distâncias e o ângulo (A1) formado entre os longos eixos dos implantes planejados e executados foram numericamente calculados. De acordo com a análise tomográfica, os implantes executados em relação aos implantes planejados apresentaram desvios médios de 0,72 mm para a posição D1; 0,98 mm para a posição D2; 1,45 mm para a posição D3; 1,92 graus para o ângulo A1. Concluiu-se que houve desempenho adequado para a utilização de protocolos de cirurgia guiada baseados no método empregado em associação com guias cirúrgicos produzidos pelo processo de estereolitografia. A transferência do planejamento protético-cirúrgico para o campo operatório foi considerada satisfatória, visto que viabilizou a instalação de implantes dentários nas situações propostas...

The aim of this in vivo study was to evaluate the placement accuracy of 23 dental implants with fl apless surgery using stereolithographic guides in four completely edentulous maxillary patients. After double scanning with cone beam computerized tomography (CBCT), the presurgical planning was performed using appropriate software (Procera). After surgery, executed and planned implant positions were compared using CBCT superimposing. Measurements were made at the center of three pre-selected points: coronal (D1), central (D2), and apical (D3) portions. Thus, the distances among points and the angle (A1) formed between the long axes of the planned/executed implants were calculated. Mean deviations were as the following: 0.72 mm at D1, 0.98 mm at D2, and 1.45 mm at D3 positions. The mean angular deviaton (A1) was 1.92 degrees. It was concluded that there was adequate performance with surgical guides produced by stereolithographic process. The transfer of prosthetic-surgical planning for the surgical area was considered satisfactory, since it allowed for implant placement in proposed situations...

Características físico-químicas e atividade antioxidante total de pitaias vermelha e branca / Physicochemical characteristis and total antioxidant activity of red and white pitaya

Neste estudo, foram avaliadas as características físico-químicas e a atividade antioxidante total (AAT) da casca e da polpa das pitaias vermelha e branca. Foram determinadas a composição centesimal, vitaminaC, fenólicos totais e AAT nas cascas e polpas das pitaias. A AAT foi determinada utilizando-se duas metodologias: sistema β-caroteno/ácido linoléico e sequestro do radial DPPH. As cascas e as polpas das pitaias analisadas apresentaram alto teor de umidade e baixo teor de proteínas e lipídios. Os teores de fibra alimentar total (FAT) e cinzas foram significativamente maiores nas cascas das pitaias, e os teores de glicídios e energia foram maiores nas polpas. O teor médio de vitamina C variou de 17,73 a 20,69 (mg.100g-1) nas polpas e de 22,21 a 24,05 (mg.100 g-1) nas cascas. A casca da pitaia vermelha demonstrou menor teor de fenólicos totais (77,22 mg EAG.100 g-1). As pitaias analisadas mostraram alta AAT pela metodologia de sistema betacaroteno/ácido linoleico e baixa AAT pela técnica de DPPH. A pitaia vermelha apresentou a maior AAT com destaque na sua polpa. O potencial antioxidante e as características químicas das pitaias vermelha e branca podem contribuir na dieta benéfica à saúde humana.

Atividade antioxidante total da polpa de tomate submetida ao processamento térmico doméstico em diferentes tempos / Antioxidant activity of the tomato pulp submitted to domestic thermal processing at different times

A ação benéfica do tomate é atribuída ao alto potencial antioxidante desse fruto, que é resultado da presença de compostos antioxidantes como o licopeno, compostos fenólicos e vitamina C. O processamento térmico pode afetar significativamente o teor das substâncias antioxidantes presentes no tomate, podendo reduzir ou aumentar seus efeitos benéficos à saúde humana. O objetivo deste estudo foi avaliar o efeito do tempo de cozimento em condições domésticas sobre o teor dos principais compostos antioxidantes e sobre a atividade antioxidante total in vitro (AAT) da polpa de tomate. Os tomates da cultivar Débora foram cozidos em recipientes de aço inoxidável em fogão doméstico durante 0, 15, 30, 45, 60, 75 e 90 minutos. Foram determinados os teores de fenólicos totais, vitamina C, licopeno e ?-caroteno da polpa de tomate. A AAT foi determinada utilizando o método do sequestro do radical livre DPPH (2,2-difenil-1-picrilhidrazil) e do sistema ?-caroteno/ácido linoleico. O cozimento da polpa de tomate aumentou sua AAT, cujo aumento foi mais expressivo até os 15 minutos no método do sistema ?-caroteno/ácido linoleico e até 30 minutos no método do DPPH. Foi observado significativo aumento dos teores de licopeno, ?-caroteno e fenólicos totais e diminuição do teor de vitamina C. De modo geral, o tratamento térmico reduz o valor nutritivo dos alimentos, porém este estudo apresentou um aumento nas características antioxidantes do tomate, permitindo que o consumidor obtenha maiores benefícios ao cozinhar o tomate antes do consumo.

The beneficial effect of tomatoes is attributed to the high antioxidant potential of fruit, which is the result of the presence of antioxidant compounds such as lycopene, phenolics and vitamin C. Heat processing can significantly affect the level of antioxidants in tomatoes, which may reduce or increase its beneficial effects to human health. The objective of this study was evaluating the effect of cooking time under domestic conditions upon the content of the main antioxidant compounds and the total antioxidant activity in vitro (AAT) of the tomato pulp. The tomatoes from cultivar Débora were cooked in stainless steel containers in domestic stove by 0, 15, 30, 45, 60, 75 and 90 minutes. The contents of total phenolics, vitamin C, licopene and ?-carotene in the tomato pulp were determined. AAT was determined by using the DPPH and ?- carotene/linoleic methods. The cooking of the tomato pulp increased its AAT and the increase was more marked till the 15 minutes in the ?-carotene/linoleic acid system and till 30 minutes in the DPPH method. The results showed a significant increase of the contents of licopene, ?-carotene and total phenolics and a decrease in the vitamin C content. In general, the heat treatment reduces the nutritive value of foods, but, this study showed an increase in the antioxidant properties of tomato, allowing the consumer to obtain greater benefits in the cooking of tomatoes prior to consumption.

Physical and chemical characteristics and lycopene retention of dried tomatoes subjected to different pre-treatments

This study evaluated the physical and chemical characteristics (moisture, pH, acidity titratable, soluble solidsand color) and lycopene retention in dried tomatoes submitted to different pretreatments. The tomatoes were cut longitudinally and submitted to the osmotic dehydration for 120 minutes. Six osmotic solutions were used with the following concentrations: NaCl 5, NaCl 10, NaCl 5 + sucrose 10, NaCl 10 + sucrose5, sucrose 5, sucrose 10 (w/v), and the osmotic dehydration was conducted with direct application of the solutes (NaCl or mixture of NaCl + sucrose). Soon afterwards the tomatoes were submitted to drying at65°C for 12 hours. The osmo-convective drying promoted an increase in the level of soluble solids, titratable acidity and reduction of the pH, except for the sucrose solutions, that did not alter the pH of the tomatoes.The ternary solution (NaCl + sucrose), binary (NaCl 10) and the direct application of the solutes promoted significant moisture reduction in relation to the control. The osmotic solutions only containing sucrose or NaCl 5 presented lycopene retention significantly superior to the other treatments. The use of the osmotic dehydration as pretreatment for drying of the tomato can contribute to accelerate the drying process and to preserve the tomato lycopene level.

Efeito de diferentes tipos de fibras sobre frações lipídicas do sangue e fígado de ratos wistar / Effect of different types of fibers on the lipid portions of wistar rat blood and liver

Conduziu-se o presente estudo, com o objetivo de avaliar o efeito de diferentes tipos de fibras sobre as fraçoes lipídicas do sangue e fígado de ratos. Para determinar o efeito da pectina citrica, goma guar e celulose sobre o perfil lipidico dos ratos utilizaramse 36 ratos machos da linhagem wistar. Os ratos foram distribuidos aleatoreamente em seis grupos. Cada gruopo foi submetido a uma dieta por 58 dias. As dietas utilizadas foram: A- 10 por cento de pectina, B - 15 por cento de pectina, C - 10 por cento de goma guar, D- 15 por cento de goma guar, E - 5 por cento de Celulose sem colesterol e F - 5 por cento celulose com 1 por cento de colesterol. A pectina e a goma guar evitaram o aumento do colesterol total e LDL-c sérico observado na dieta F (p<0,05). Não houve diferença significativa entre os tipos de fibras e a quantidades utilizadas. Os níveis séricos HDL-c, VLDL-c e TAG permaneceram inalterados em todos os tratamentos. Os resultados mostram o potencial efeito benéfico da ingestão das fibras solúveis pectina e goma guar no controle da colesterolemia.

The present study was designed to evaluate the effect of different types of fibers on lipid portions of mice blood and liver. To determine the effect of citric pectin, guar gum and cellulose on the rat lipid profile, 36 male mice of the Wistar strain were utilized. The mice were allocated randomly into six groups. Each group was submitted to an experimental diet for 58 days. The utilized diets were: A- 10 percent pectin, B - 15 percent pectin, C - 10 percent guar gum, D- 15 percent guar gum, E - 5 percent cellulose with no cholesterol and F - 5 percent cellulose with 1 percent cholesterol. Pectin and guar gum prevented the increase of total cholesterol and serum LDL-c found in diet F (p<0.05). There was no significant difference among the types of soluble fibers and the amounts utilized. The serum levels HDL-c, VLDL-c, and TAG did not alter in all the treatments. The results show the potential beneficial effect of the ingestion of the soluble fibers pectin and guar gum in cholesterolemia control.

Inadequação no consumo alimentar e fatores interferentes na ingestão energética de idosos matriculados no Programa Municipal da Terceira Idade de Viçosa (MG) / Food consumption inadequacy and interfering factors in energy intake of the elderly enrolled in the city of Viçosas (MG) Third Age Program

O presente estudo teve como objetivo avaliar o consumo alimentar de idosos matriculados no Programa Municipal da Terceira Idade (PMTI) de Viçosa (MG) e os possíveis fatores que interferem negativamente sobre o mesmo. Para avaliar o consumo alimentar, utilizou-se a média obtida a partir da soma do consumo encontrado entre o recordatório de 24 horas e o questionário de frequência alimentar semi-quantitativo (QFCA-s). Foi aplicado um questionário para avaliar as variáveis socioeconômicas e de saúde. A ingestão de energia e proteína ficou abaixo da necessidade estimada para 94,2por cento e 79,3por cento dos idosos. Verificou-se elevada inadequação no consumo de vitaminas (vitamina C, A, B1, B2 e B6). O consumo mediano de cálcio foi cerca de 1/3 do valor recomendado. A prevalência de inadequação de ferro foi baixa entre os idosos. Os fatores, baixa renda, morar sozinho ou com três gerações, edentulismo, uso de medicamentos e sedentarismo interferiram negativamente no consumo de energia (p menor que 0,05). A ingestão de proteínas foi afetada negativamente pelo edentulismo e sedentarismo. Os resultados mostram uma ingestão alimentar deficiente em vários nutrientes, sugerindo a necessidade de implementação de ações de assistência social e educacional para melhorar o quadro nutricional deste grupo.

Sobrepeso e obesidade medidos pelo índice de massa corporal (IMC), circunferência da cintura (CC) e relação cintura/quadril (RCQ), de idosos de um município da Zona da Mata Mineira / Overweight and obesity measured by the body mass index (BMI), waist circumference (CW) and waist-to-hip ratio (W/H), of seniors of a municipal district in Zona da Mata, State of Minas Gerais, Brazil

Este trabalho teve como objetivo caracterizar o estado nutricional dos idosos cadastrados no Programa Municipal da Terceira Idade (PMTI) situado em Viçosa, Minas Gerais. A população estudada constituiu-se de 183 idosos com idade entre 60 e 90 anos, assistidos pelo PMTI de Viçosa. Os idosos foram avaliados pelo método antropométrico, utilizando-se peso, altura, circunferências da cintura e do quadril para calcular a relação cintura/quadril (RCQ) e o índice de massa corporal (IMC). O perfil nutricional do grupo apresentou uma bipolarização, com alta prevalência de sobrepeso (40,8 por cento) e baixo-peso (15,1 por cento). A freqüência de CC (circunferência da cintura) aumentada e de RCQ inadequada foi alta em ambos os sexos (61,4 por cento), sendo significativamente maior nas mulheres. Os resultados encontrados apresentam uma situação preocupante dessa população, sendo necessário adotar medidas de controle e prevenção do sobrepeso, destacando-se o baixo-peso como importante fator de risco de mortalidade entre idosos.

Proteínas do soro do leite: composição, propriedades nutricionais, aplicações no esporte e benefícios para a saúde humana / Whey protein: composition, nutritional properties, appications in sports and benefits for human health

As proteínas do soro do leite, também conhecidas como whey protein, são extraídas durante o processo de fabricação do queijo. Possuem alto valor nutricional, contendo alto teor de aminoácidos essenciais, especialmente os de cadeia ramificada. Também apresentam alto teor de cálcio e de peptídeos bioativos do soro. Pesquisas recentes demonstram sua grande aplicabilidade no esporte, com possíveis efeitos sobre a síntese protéica muscular esquelética, redução da gordura corporal, assim como na modulação da adiposidade, e melhora do desempenho físico. Estudos envolvendo a análise de seus compostos bioativos evidenciam benefícios para a saúde humana. Entre esses possíveis benefícios destacam-se seus efeitos hipotensivo, antioxidante e hipocolesterolêmico. Esta revisão buscou trabalhos que trazem avaliação das propriedades funcionais das proteínas do soro, tanto em humanos como em animais. Apesar das evidências apresentadas, novos estudos, assim como o desenvolvimento de novos alimentos enriquecidos com as proteínas do soro, com o intuito de facilitar seu consumo por grandes grupos populacionais, são necessários para verificar sua real eficácia.

The soluble proteins of milk, also known as whey protein, are extracted during the cheese manufacturing process. They have high nutritional value, with high levels of essential amino acids, especially branched chain amino acids. They also have a high level of calcium and whey bioactive peptides. Recent researches have shown their wide application for sports with possible effects on skeletal muscle protein synthesis, reduction of body fat, as well as adiposity modulation, and improved muscle performance. Researches involving the analysis of their bioactive compounds have also shown benefits to human health. Among these benefits, their hypotensive, antioxidant, and hypocholesterolemic effects stand out. This review has searched scientific articles that evaluate the functional properties of whey protein, both in humans and animals. Despite this evidence, new researches, as well as the development of new whey protein-enriched foods to increase their consumption by the population, are necessary to check their real effectiveness.

Osteotomia Le Fort I acarretando excessivo avanço da maxila, implantes vestibularizados e a complexa reabilitação protética / Le Fort I ostectomy causing excessive advancement of the maxilla, bucally inclined implants and complex prosthetic rehabilitation

O presente trabalho relata uma complexa reabilitação protética em maxila com reabsorção severa, envolvendo implantes vestibularizados devido ao avanço excessivo da maxila através de cirurgia Le Fort I e cirurgia bilateral de aumento de assoalho do seio maxilar com enxertos ósseos