COVID-19 Pandemic and Food Insecurity among Pregnant Women in an Important City of the Amazon Region: A Study of the Years 2021 and 2022.

INTRODUCTION: Food insecurity (FI) experienced during pregnancy represents a relevant public health problem, as it negatively affects maternal and child health. OBJECTIVE: To investigate the prevalence of FI among pregnant women during the COVID-19 pandemic and determine associated factors. METHODS: A cross-sectional study was carried out in the period from 2021 to 2022, with a representative sample of 423 women resulting from a sample calculation based on the average (2912 births) that occurred in the years 2016 to 2020 in the only maternity hospital in the municipality. After analyzing the medical records, interviews were carried out with the postpartum women using a standardized questionnaire and the Brazilian Food Insecurity Scale. Poisson regression with robust variance was used to calculate prevalence ratios and 95% confidence intervals to measure associations. RESULTS: FI was observed in 57.0% of cases and was associated with age under 20 years (PR = 1.52; 95% CI 1.29; 1.79), receipt of government assistance (PR = 1.31; 95% CI 1.10; 1.55), loss of family employment (PR = 1.40; 95% CI 1.20; 1.64), greater number of residents (PR = 1.17; 95% CI 1.00; 1.37), and prenatal care in a public institution (PR = 1.53; 95% CI 1.04; 2.26). CONCLUSION: There was a high prevalence of FI cases, associated with socioeconomic, demographic, and prenatal care characteristics during the COVID-19 pandemic.

HIIT is most effective than mict on glycemic control of older people with glucose metabolism impairments: A systematic review and metanalysis.

INTRODUCTION: Physical exercise can improve glucose metabolism; however, the best type, volume, intensity, and frequency aren't knowledge. High-Intensity Interval Training (HIIT), an emergent exercise type implicated as a short time-efficient exercise to improve metabolic health, needs more investigation regarding the traditional Moderate-Intensity Continuous Training (MICT). OBJECTIVE: To identify the effects of MICT and HIIT on glycemic control of older people with glucose metabolism impairments. METHODS: Our research question was based on the PICO model and the systematic review of the literature according to the guidelines of the preferred report items for systematic reviews and PRISMA meta-analyses. An extensive search was conducted in the Web of Science, PubMed, and Scielo databases. Only English language papers were included. The keywords used were "HIIT and metabolism of the elderly", "HIIT and glucose metabolism of the elderly", and "MICT and metabolism of the elderly", which were crossed with the Boolean operators "AND" and "OR" or both according to the guidelines of the PRISMA. RESULTS: Seventy papers were retrieved in the initial search. After applying all inclusions and exclusion parameters, 63 articles were excluded. In the end, six papers were classified as eligible for this study. All data categorically demonstrates that both HIIT and MICT can improve glucose metabolism with a larger effect size towards the HIIT model after the meta-analysis, pointing to HIIT as the most effective strategy. CONCLUSION: Both modalities can improve glucose metabolism in the elderly with a clear advantage for HIIT over MICT.

Frecuencia del polimorfismo genético ACTN3 R577X y ECA I/D en atletas ciegos de fútbol 5 / Frequency of genetic polymorphism ACTN3 R577X and ACE I/D in blind athletes of 5-a-side football

RESUMEN: El objetivo de este estudio fue describir la frecuencia genotípica y alélica del ACTN3 R577X y ECA I/D en atletas ciegos de fútbol 5. Se incluyó una metodología descriptiva con una muestra de 63 deportistas ciegos (28,0±5,8 años), todos varones, de equipos de fútbol 5 de alto rendimiento. El polimorfismo se determinó mediante la reacción en cadena de la polimerasa en tiempo real (RT-PCR). La estadística fue descriptiva realizada a partir de las medidas de frecuencia de genotipos y alelos. La frecuencia genotípica de la ACTN3 en los deportistas presentó la siguiente distribución: el 28,6 % con genotipo RR, el 54 % con RX y el 17,4 % con XX y frecuencia alélica del 55,6 % para el alelo R y del 44,4 % para el alelo X. En cuanto a la ECA I/D, la frecuencia genotípica fue del 63,5 % para el genotipo ID, del 22,2 % para el DD y del 14,3 % para el II. La frecuencia alélica presentó prevalencia del alelo D con el 53,9 %. El estudio constató una predominancia de los genotipos y alelos representativos de las modalidades de fuerza y velocidad para ACTN3 R577X y ECA I/D de atletas de fútbol 5.

SUMMARY: The aim of this study was to describe the genotypic and allele frequency of ACTN3 R577X and ACE I/D in blind athletes of 5-a-side football performance. A descriptive methodology was included with a sample of 63 blind male athletes (28.0 ±5.8 years) of football teams with a 5-a-side performance rating. The polymorphism was determined by means by of real-time Polymerase Chain Reaction (rt-PCR). Statistics were descriptive based on the measures of frequency of genotypes and alleles. The genotypic frequency of ACTN3 by the athletes presented the following distribution: 28.6 % with RR genotype, 54 % with RX and 17.4 % XX and allele frequency of 55.6 % for the R allele and 44.4 % for the X allele. As for ACE I/D, the genotype frequency was 63.5 % for genotype ID, 22.2 % for DD and 14.3 % for II. The allele frequency showed a predominance of the D allele with 53.9 %. The study found for ACTN3 R577X and ACE I/ D of blind athletes of 5-a-side football, a predominance of genotypes and alleles representative of strength and speed modalities.

A natural cell-penetrating nanopeptide combined with pentavalent antimonial as experimental therapy against cutaneous leishmaniasis.

The inadequacy of available treatments for leishmaniasis has presented up to 40% therapeutic failure. This fact suggests an urgency in the discovery of new drugs or alternative approaches for treating this disease. The objective of this study was to evaluate the antileishmanial activity of combined therapy between crotamine (CTA) from Crotalus durissus terrificus and the pentavalent antimonial Glucantime® (GLU). The assays were in vitro performed measuring the inhibition of Leishmania amazonensis amastigotes, followed by the evaluation of cellular production of cytokines and nitrites. After that, analytical methods were performed in order to characterize the molecules involved in the study by Mass Spectrometry, molecular affinity through an in silico assay and Surface Plasmon Resonance. In vivo experiments with BALB/c mice were performed by analyzing parasitemia, lesion size and immunological mediators. In the in vitro experiments, the pharmacological association improved the inhibition of the amastigotes, modulated the production of cytokines and nitric oxide. The therapy improved the effectiveness of the GLU, demonstrating a decreased parasitemia in the infected tissues. Altogether, the results suggest that the combined approach with CTA and GLU may be a promising alternative for the treatment of cutaneous leishmaniasis.

Antileishmanial drugs activate inflammatory signaling pathways via toll-like receptors (docking approach) from Leishmania amazonensis-infected macrophages.

The activation of proinflammatory cellular processes and signals such as those linked to NF-kB in macrophages are involved in the control of infection by Leishmania ssp. However, little is known about the influence of the drugs used in the treatment on the host cellular inflammatory signaling pathways. This study aimed to evaluate the effects of different drugs used in the treatment of leishmaniasis on inflammatory profile related to Toll-like receptors (TLRs) from L. amazonensis-infected macrophages. J774 macrophage-like cells were infected with the promastigote forms (5:1) and 24 hs incubated with Amphotericin B (AmB), Glucantime® (GLU) or Pentamidine (Pent). The following inflammatory pathways were evaluated: NF-κB p65, NF-κB p65 phosphorylated (Ser536), stress-activated protein kinase/c-Jun NH(2)-terminal kinase (SAPK/JNK) phosphorylated (Thr183/Tyr185), p38 mitogen activated protein kinase (MAPK p38) phosphorylated (Thr180/Tyr182), signal transducer and activator of transcription-3 (Stat3) phosphorylated (Tyr705) and inhibitor kappa B-α (IκB-α) phosphorylated (Ser32). In silico tests were performed to evaluate the molecular affinity between TLRs and antileishmanial drugs. Molecular docking showed that affinities varied significantly among the binders evaluated. The lowest affinity (-8.6 Kcal/Mol) was calculated for AmB in complex with TLR4. Pent showed higher values for TLR1, TLR2 and TLR3, while for TLR4 the affinity value was lower (5.5 Kcal/Mol). The values obtained for GLU were the highest for the set of binders tested. From the infected macrophages, treatments inhibited NF-kB p65 for GLU (65.44%), for Pent (46.43%) and for AmB (54.07%) compared to untreated infected macrophages. The activation of the signaling pathway of NF-kB, SAPK/JNK and IκB-α caused by AmB and Pent may potentiate the microbicidal mechanisms of the infected macrophages.

Multimodal HIIT is more efficient than moderate continuous training for management of body composition, lipid profile and glucose metabolism in the diabetic elderly / El entrenamiento multimodal es más eficiente que el entrenamiento continuo moderado para el manejo de la composición corporal, el perfil de lípidos y el metabolismo de la glucosa en adultos mayores diabéticos

The exercise could play a central role to the fat management and glucose metabolism what can be a critical role in the health status of diabetic people, but the high intense exercise remains with controversial data about their effects. To identify the effect of the multimodal high-intensity interval training on body composition, lipid profile, and glucose metabolism in elderly diabetics. Methods: Elderly diabetic individuals (n = 48) were randomly divided in a Sedentary Control (SC) group, a Moderate-Intensity Continuous Training (MICT) group, and a High-Intensity Interval Training (HIIT) group. MICT and HITT were conducted over 60 days, 3x per week, with 40 minutes of exercise. Blood was collected prior to intervention, at four, and at eight weeks subsequently to assess glucose metabolism and lipid profiles. Body composition was determined before and after the intervention period. To verify the normality Kolmogorov-Smirnov statistical test was performed, followed by student "t" test or two-way ANOVA with Bonferroni's post hoc test with significance of 5 % the Cohen's f test to indicate the magnitude of the differences. HIIT significantly lowered cholesterol and triglyceride levels, and significantly lowered blood glucose and glycosylated haemoglobin levels (p<0.05). MICT and HIIT significantly increased levels of high-density lipoprotein, decreased total body mass and body mass index. HIIT resulted in significantly smaller waist circumferences, waist-to-hip ratios, and weight-to-height ratios over 60 days of training. HIIT is more effective than MICT for improving lipid and glycaemic profiles, decreasing body fat, and improving fat distribution elderly diabetics.

El ejercicio podría desempeñar un papel central en el manejo de la grasa y el metabolismo de la glucosa, lo que puede ser un papel crítico en el estado de salud de las personas diabéticas, pero el ejercicio intenso intenso sigue teniendo datos controvertidos sobre sus efectos. El objetivo del estudio fue identificar el efecto del entrenamiento multimodal de intervalos de alta intensidad sobre la composición corporal, el perfil lipídico y el metabolismo de la glucosa en diabéticos de edad avanzada. Los individuos diabéticos de edad avanzada (n = 48) se dividieron aleatoriamente en un grupo de control sedentario (SC), un grupo de entrenamiento continuo de intensidad moderada (MICT) y un grupo de entrenamiento de intervalos de alta intensidad (HIIT). MICT y HITT se realizaron durante 60 días, 3 veces por semana, con 40 minutos de ejercicio. Se recogió sangre antes de la intervención, a las cuatro y a las ocho semanas posteriormente para evaluar el metabolismo de la glucosa y los perfiles de lípidos. La composición corporal se determinó antes y después del período de intervención. Para verificar la normalidad se realizó la prueba estadística de Kolmogorov-Smirnov, seguida de la prueba "t" de Student o ANOVA de dos vías con la prueba post hoc de Bonferroni con una significancia del 5 % de la prueba f de Cohen, indicando las diferencias. HIIT redujo significativamente los niveles de colesterol y triglicéridos, además de reducir de manera importante los niveles de glucosa en la sangre y la hemoglobina glicosilada (p <0.05). MICT y HIIT aumentaron significativamente los niveles de lipoproteína de alta densidad, disminuyeron la masa corporal total y el índice de masa corporal. HIIT resultó en circunferencias de cintura significativamente más pequeñas, relaciones cintura-cadera y relaciones peso-altura durante 60 días de entrenamiento. HIIT es más efectivo que MICT para mejorar los perfiles de lípidos y glucémicos, disminuir la grasa corporal y mejorar la distribución de grasa en los diabéticos de edad avanzada.

Children with ADHD shown different alpha, beta and SMR EEG bands during habil motor tasks with high attention demand / Crianças com TDAH exibem diferente perfil no EEG durante tarefas motoras que demandam atenção / Niños con TDAH exhiben diferente perfil de EEG durante tareas motoras que demandan atención

INTRODUCTION: ADHD probably affects more than 50% of schoolchildren, yet although characteristics such as inattention and/or hyperactivity and impulsiveness are clear, electrophysiological brain behavior during motor activity is not fully understood. OBJECTIVE: To investigate alpha, beta, and SMR band patterns on the EEG in children with Attention Deficit Hyperactivity Disorder (ADHD) during attention-demanding motor skills tasks. METHODS: Fourteen children with a mean age of 9.64±1.74 years divided into diagnosed and undiagnosed with ADHD underwent an EEG at rest and during task performance with attentional demand. Alpha, SMR and beta waves were observed on the EEG. Data were evaluated using the Shapiro-Wilk test in order to determine data normality. ONE WAY ANOVA and Tukey's post hoc tests were used to determine intragroup and intergroup differences, and the Pearson (r) and Spearman (p) correlations were used to determine correlations. All treatments had a significance of 5%. RESULTS: The ADHD and N-ADHD groups showed no difference in cortical alpha, beta and SMR bands at rest, but there were differences in cortical behavior during activity. The cortical activity correlation coefficient (0.30) differed from undiagnosed children (0.70). CONCLUSION: The ADHD group had a low correlation coefficient between rest and activity, contrary to the N-ADHD group. In the intergroup comparison, ADHD had higher alpha, beta and SMR band output power during the same high attentional task when compared with N-ADHD. Level of Evidence III.

INTRODUÇÃO: O TDAH afeta, provavelmente, mais de 50% crianças em idade escolar, porém, embora características como falta de atenção e/ou hiperatividade e impulsividade sejam claras, o comportamento eletrofisiológico do cérebro durante atividades motoras não é bem entendido. OBJETIVO: Investigar o padrão das bandas Alfa, Beta e SMR no EEG de crianças com transtorno do déficit de atenção com hiperatividade (TDAH), durante tarefas motrizes com alta demanda de atenção. MÉTODOS: Catorze crianças com média de idade de 9,64 ± 1,74 anos, divididas nos grupos diagnosticadas e não diagnosticadas com TDAH, realizaram EEG em repouso e durante o desempenho de tarefa com demanda de atenção. As ondas Alfa, SMR e Beta foram observadas no EEG. Os dados foram avaliados pelo teste de Shapiro-Wilk para determinar a normalidade dos dados. Os teste ANOVA one-way e post hoc de Tukey foram usados para determinar as diferenças intragrupo e intergrupo, e a correlação de Pearson (r) e Spearman (p) foram usadas para determinar as correlações. Todos os tratamentos tiveram significância de 5%. RESULTADOS: Os grupos TDAH e N-TDAH não apresentaram diferença na banda cortical Alfa, Beta e SMR em repouso, porém, durante a atividade, constataram-se diferenças do comportamento cortical. O índice de correlação da atividade cortical (0,30) foi diferente nas crianças não diagnosticadas (0,70). CONCLUSÃO: O grupo TDAH apresentou baixo índice de correlação entre repouso e atividade, diferentemente do grupo N-TDAH. Na comparação intergrupos, o TDAH apresentou maior potência de saída da banda Alfa, Beta e SMR durante a mesma tarefa de alta atenção em comparação com o N-TDAH. Nível de Evidência III.

INTRODUCCIÓN: El TDAH afecta probablemente a más del 50% de los escolares, pero aunque las características como la falta de atención y/o la hiperactividad e impulsividad sean entendidas como comportamiento electrofisiológico del cerebro durante las actividades motoras, esto no es bien entendido. OBJETIVO: investigar el patrón de las franjas de Alfa, Beta y SMR en el EEG en niños con trastorno de déficit de atención y de Hiperactividad (TDAH), durante tareas motrices con altas demandas de atención. MÉTODOS: catorce niños con promedio de edad de 9,64 ± 1,74 años, divididos en diagnosticados y no diagnosticados con TDAH, realizaron EEG durante el reposo y desempeño de la tarea motriz con alta demanda de atención. Las ondas Alfa, SMR y Beta se observaron en el EEG. Los datos fueron evaluados por el test de Shapiro-Wilk para determinar la normalidad. ANOVA ONE WAY y el test de Tukey fueron utilizados para determinar las diferencias intragrupo e intergrupo, así como también la correlación de Pearson (r) y Spearman (p) fueron usadas para determinar las correlaciones. Todos los tratamientos tuvieron un nivel de significancia del 5%. RESULTADOS: El TDAH y el N-TDAH no presentaron diferencias en la Franja Cortical Alfa, Beta y SMR durante el reposo, no obstante, al estar en actividad, el comportamiento cortical presentó diferencias. El índice de correlación de la actividad cortical (0,30) fue diferente de niños no diagnosticados (0,70). CONCLUSIONES: El TDAH presentó un bajo índice de correlación entre reposo y actividad, a diferencia del N-TDAH. En la comparación intergrupos, el TDAH presentó mayor potencia de salida de la franja Alfa, Beta y SMR durante la misma tarea de alta atención, en comparación con el N-TDAH. Nivel de Evidencia III.

Composição corporal e somatotipo de atletas da seleção brasileira de futebol de 5: equipe paralímpica Rio 2016 / Body composition and somatotype of athletes of Brazilian w5-a-side football team: Paralympic team Rio 2016

Resumo Introdução: O conhecimento das variáveis morfológicas na modalidade futebol de 5 é importante para orientar o treinamento e possibilitar a potencialidade máxima dos atletas. Objetivo: Analisar a composição corporal e o somatotipo de atletas da seleção brasileira paralímpica Rio 2016 de futebol de 5 nas diferentes posições táticas desempenhadas em jogo. Materiais e métodos: Foi realizada avaliação antropométrica em 15 atletas (24±5.6 anos) do sexo masculino, obtendo-se o somatotipo e a composição corporal. Resultados: O estudo não encontrou diferença estatística significativa entre os grupos para nenhuma das variáveis antropométricas e de composição corporal. Quanto ao perfil somatotípico, o grupo (2.9 - 5.5 - 1.8) foi classificado como meso-endomórfico. Os fixos (2.6 - 4.4 - 2.4) e pivôs (2.2 - 5.6 - 2.3) apresentaram o perfil mesomorfo balanceado e os goleiros (3.2 - 5.8 - 1.6) e alas (3.2 - 5.7 - 1.6) o meso-endomórfico. Conclusões: A equipe foi caraterizada como homogênea quanto à antropometria e composição corporal. Houve predominância do componente muscular para o perfil somatotípico na equipe e em todas as posições.

Abstract Introduction: The knowledge of morphological variables in paralympic 5-a-side football mode are important to guide the training and enable the full potential of athletes. Objective: The aim of this study was to analyze the body composition and somatotype athletes of the Brazilian Paralympics Rio 2016 team 5-a-side football in the different tactical positions performed at game. Materials and methods: An anthropometric evaluation was performed in 15 male athletes (24±5.6 years), obtaining somatotype and body composition. Results: The study found no statistically significant differences between groups for any of the anthropometric and body composition variables. As for somatotype profile, the group (2.9 - 5.5 - 1.8) was classified as meso-endomorphic. Defenders (2.6 - 4.4 - 2.4) and pivots (2.2 - 5.6 - 2.3) presented a balanced mesomorph profile and goalkeepers (3.2 - 5.8 - 1.6) and alas (3.2 - 5.7 - 1.6) the meso-endomorphic. Conclusions: The team was characterized as homogeneous as the anthropometry and body composition. There was a predominance of the muscular component to the somatotype profile on the team and in all positions.

HIGH INTENSITY EXERCISE AND FLEXIBILITY OF THE LOWER LIMBS: DOSE-EFFECT STUDY / EXERCÍCIO DE ALTA INTENSIDADE E FLEXIBILIDADE DE MEMBROS INFERIORES: ESTUDO DE DOSE-EFEITO / EJERCICIO DE ALTA INTENSIDAD Y LA FLEXIBILIDAD DE LAS EXTREMIDADES INFERIORES: ESTUDIO DE DOSIS-EFECTO

ABSTRACT Introduction: Sports scientists have been studying the phenomenon involving different types of exercises and their influence on other activities. Stretching exercises have a negative influence on muscular strength and power output, as do high intensity or long duration cardiovascular training. Nevertheless, several studies have found the opposite to be true Nevertheless, few investigations have studied the opposite. Objective: To determine whether high intensity power exercise influences muscular flexibility in an acute manner. Methods: A sample of forty-three male and female young adults aged between 18 and 28 years, with a mean age of 22.88 + 3.04 years, who have practiced physical activity for at least six months. To determine flexibility, the sit-and-reach test was used. For the high intensity training, a 45º leg press was used. A 10-rep movement was performed at 85% of 1 RM, in both pre- and post-tests. Statistic analysis was conducted using the ANOVA and Scheffer's post-hoc tests, with a level of significance for differences of < 0.05. Results: Comparison of the pre- and post-tests proved to be statistically significant from the baseline from the fourth to the seventh repetitions. Conclusion: Strength exercises at 85% of 1RM seem to significantly increase range of motion in an acute manner, and the growth of this range of motion has a dose-effect response.

RESUMO Introdução: Os cientistas do esporte veem estudando o fenômeno que envolve diferentes tipos de exercícios e sua influência sobre outras atividades. Os exercícios de alongamento têm influência negativa sobre a força e potência muscular, da mesma forma que o treinamento cardiovascular de longa duração ou alta intensidade. No entanto, poucas investigações têm estudado o oposto. Objetivo: Identificar se o exercício de alta intensidade tem influência sobre a flexibilidade muscular de forma aguda. Métodos: Amostra de quarenta e três jovens adultos do sexo masculino e do sexo feminino entre 18 e 28 anos de idade, com média de idade de 22,88 + 3,04 anos, praticantes de atividade física por pelo menos seis meses. Para verificar a flexibilidade, foi utilizado o teste de sentar e alcançar. Para o treinamento de alta intensidade, foi selecionada a pressão de pernas (leg press) em 45º. Foram realizadas 10 repetições a 85% de 1 RM, tanto no pré quanto no pós-teste. A análise estatística foi realizada por ANOVA e testes post hoc de Scheffer, com nível de significância para diferenças ≤ 0,05. Resultados: A comparação entre pré e pós-teste mostrou-se estatisticamente significante desde a linha de base, da quarta até a sétima repetição. Conclusão: Os exercícios de força a 85% de 1 RM parecem aumentar significativamente a amplitude de movimento de forma aguda e o crescimento dessa amplitude de movimento tem resposta de dose-efeito.

RESUMEN Introducción: Los científicos del deporte están estudiando el fenómeno que consiste en diferentes tipos de ejercicio y su influencia en otras actividades. Los ejercicios de estiramiento tienen influencia negativa sobre la fuerza muscular y la potencia, al igual que el entrenamiento cardiovascular a largo plazo o de alta intensidad. Sin embargo, pocas investigaciones han estudiado lo contrario. Objetivo: Identificar si el ejercicio de alta intensidad influye en la flexibilidad muscular de manera aguda. Métodos: Muestra de cuarenta y tres hombres y mujeres jóvenes de ambos sexos de entre 18 y 28 años, con una edad media de 22,88 ± 3,04 años, que practican actividad física durante al menos 6 meses. Para verificar la flexibilidad, se utilizó la prueba de sentarse y alcanzar. Para el entrenamiento de alta intensidad se seleccionó la prensa de piernas (leg press) en 45º. Se realizaron 10 repeticiones a 85% de 1 RM, tanto en pre y post-test. El análisis estadístico se realizó mediante análisis ANOVA y prueba post hoc de Scheffer, con nivel de significación de las diferencias < 0,05. Resultados: La comparación entre el pre y post-test mostró una diferencia estadísticamente significativa respecto al valor basal, desde la cuarta hasta la séptima repetición. Conclusión: Los ejercicios de fuerza en el 85% de 1 RM parecen aumentar significativamente el rango de movimiento de manera aguda y el crecimiento de este rango de movimiento tiene una respuesta de dosis-efecto.

GINÁSTICA GERAL PODE MELHORAR A MARCHA E A CAPACIDADE CARDIOVASCULAR DE IDOSOS / GENERAL FITNESS CAN IMPROVE GAIT AND CARDIOVASCULAR CAPACITY OF ELDERLY / GIMNASIA GENERAL PUEDE MEJORAR LA MARCHA Y LA CAPACIDAD CARDIOVASCULAR EM LOS ANCIANOS

RESUMO Introdução: É bem descrito na literatura que o exercício físico de diferentes naturezas tem vários benefícios para a saúde de diferentes populações, no entanto, os programas de ginástica geral vêm recebendo pouca atenção quanto aos possíveis benefícios para a saúde de seus praticantes, especialmente para medidas de desempenho físico e para a capacidade de marcha. Objetivo: Avaliar a eficácia de um treinamento de ginástica geral sobre o VO2máx e a qualidade da marcha de idosos. Métodos: Selecionou-se um grupo de cento e vinte sujeitos com média de idade de 64,81 ± 2,71 anos, massa corporal de 66,97 ± 4,81 kg e estatura de 164,6 ± 4,81 cm de ambos os sexos. Utilizou-se o teste de 15 minutos de Balke para determinar o VO2máx e o Dynamic Gait Index para verificar a qualidade da marcha. O tratamento estatístico foi realizado por meio do teste de Wilcoxon para amostras relacionadas com significância de 5%. Resultados: Em todos os tratamentos houve diferença de VO2máx e os resultados do Dynamic Gait Index sugerem melhora na qualidade da marcha. Conclusão: Parece que o treinamento de ginástica geral proposto no presente estudo foi eficaz em melhorar o VO2máx e a qualidade de marcha do grupo selecionado.

ABSTRACT Introduction: It is well described in the literature that physical exercise of different kinds has many benefits for the health of all populations; however, general fitness programs have received little attention in terms of the possible health benefits for those who take part in them, especially in relation to physical performance measures and walking capacity. Objective: To evaluate the effectiveness of general fitness training on Vo2 max and quality of gait among elderly people. Methods: A group of one hundred and twenty male and female subjects was selected, with a mean age of 64.81 ± 2.71 years, body mass of 66.97 ± 4.81 kg, and height of 164.6 ± 4.81 cm. We used the Balke 15-minute test to determine Vo2 max, and the Dynamic Gait Index to check the quality of gait. Statistical analysis was performed using the Wilcoxon test for related samples, with 5% significance. Results: For all treatments, there was a difference in Vo2 max, and the results of the Dynamic Gait Index suggest an improvement in quality of gait. Conclusion: it seems that the general fitness training proposed in this study was effective in improving Vo2 max and quality of gait in the selected group.

RESUMEN Introducción: Está bien descrito en la literatura que el ejercicio físico de diferentes tipos tiene varios beneficios para la salud de diferentes poblaciones, sin embargo, los programas de aptitud física general, han recibido poca atención cuanto a los posibles beneficios para la salud de sus practicantes, especialmente para las medidas de desempeño físico y la capacidad de caminar. Objetivo: Evaluar la eficacia de un entrenamiento físico general sobre el VO2máx y la calidad de la marcha para los ancianos. Métodos: Se ha seleccionado un grupo de ciento veinte sujetos con una edad media de 64,81 ± 2,71 años, masa corporal 66,97 ± 4,81 kg y altura de 164,6 ± 4,81 cm de ambos sexos. Se utilizó la prueba de 15 minutos de Balke para determinar el VO2máx y el Dynamic Gait Index para verificar la calidad de la marcha. El análisis estadístico se realizó mediante el test de Wilcoxon para muestras relacionadas con el 5% de significación. Resultados: En todos los tratamientos hubo diferencias del VO2máx y los resultados del Dynamic Gait Index sugieren mejora en la calidad de la marcha. Conclusión: Parece que el entrenamiento físico general propuesto en este estudio fue eficaz para mejorar el VO2máx y la calidad de la marcha del grupo seleccionado.