PurposeThe aim of this study was to investigate the effect of self-paced active recovery (AR) and passive recovery (PR) on blood lactate removal following a 200 m freestyle swimming trial.Patients and methodsFourteen young swimmers (with a training frequency of 6–8 sessions per week) performed two maximal 200 m freestyle trials followed by 15 minutes of different recovery methods, on separate days. Recovery was performed with 15 minutes of passive rest or 5 minutes of passive rest and 10 minutes of self-paced AR. Performance variables (trial velocity and time), recovery variables (distance covered and AR velocity), and physiological variables (blood lactate production, blood lactate removal, and removal velocity) were assessed and compared.ResultsThere was no difference between trial times in both conditions (PR: 125.86±7.92 s; AR: 125.71±8.21 s; p=0.752). AR velocity was 69.10±3.02% of 200 m freestyle trial velocity in AR. Blood lactate production was not different between conditions (PR: 8.82±2.47 mmol L−1; AR: 7.85±2.05 mmol L−1; p=0.069). However, blood lactate removal was higher in AR (PR: 1.76±1.70 mmol L−1; AR: 4.30±1.74 mmol L−1; p<0.001). The velocity of blood lactate removal was significantly higher in AR (PR: 0.18±0.17 mmol L−1 min−1; AR: 0.43±0.17 mmol L−1 min−1; p<0.001).ConclusionSelf-paced AR shows a higher velocity of blood lactate removal than PR. These data suggest that athletes may be able to choose the best recovery intensity themselves.

Objective: To analyze the compliance to antiretroviral therapy among HIV/AIDS patients. Method: 99 HIV-positive volunteers undergoing treatment responded to a semi-structured sociodemographic interview and to a questionnaire that assessed compliance to antiretroviral treatment. Results: In the sample analyzed, 52.5% of the volunteers presented good/adequate treatment compliance, while 33.3% presented low/insufficient compliance. There was no significant difference between men and women in the questionnaire score, nor between groups with different levels of education. Conclusion: The main items of the questionnaire that contributed to good/adequate compliance were: positive impact of treatment on health and quality of life, few side effects after initiation of therapy, and positive self-evaluation of participants regarding their compliance to antiretroviral therapy. The main barriers detected for compliance to antiretroviral therapy were the lack of knowledge about current medications and the lack of information on antiretroviral therapy drugs.

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The aim of this study was to analyze the acute metabolic response to exercise in fasting and postprandial. For this, ten individuals were submitted to an incremental treadmill test, with an initial speed of 5 and 1 km/h increments every minute, with no inclination, and a body composition assessment. After this 1st day, all volunteers were submitted to two experimental procedures (fasting and postprandial), with an aerobic exercise performed for 36 minutes at 65% of maximal oxygen consumption. At postprandial procedure, all subjects ingested a breakfast containing 59.3 g of carbohydrate (76.73%), 9.97 g of protein (12.90%), 8.01 g of lipids (10.37%), with a total energy intake of 349.17 kcal. An analysis of plasma concentration of triglycerides, lactate, and glucose was performed in two stages: before and after exercise. The Shapiro–Wilk test was used to verify the normality of the data. For analysis of glucose concentration, plasma lactate, and triglycerides, we used a repeated measures analysis of variance factorial 2×2, with Bonferroni multiple comparison test. The significance level of P<0.05 was adopted. The results indicated a maintenance level of glucose at fasting and a decrease in glucose concentration at postprandial exercise. Both conditions increase plasma lactate. Triglycerides also increased in the two experimental conditions; however, after exercise fasting, the increase was significantly higher than in the postprandial exercise. These data suggest that both exercises could increase plasma lactate and triglycerides. However, exercise performed in fasting condition decreases glucose concentration and increases triglycerides, even more than postprandial exercise.

Atualmente as atividades físicas são indicadas para as gestantes que não apresentem anormalidades, mediante avaliação médica especializada. Deve-se seguir uma orientação médica sobre as complicações que poderão surgir durante a gestação e de um profissional de educação física habilitado para a elaboração e prescrição dos exercícios físicos com adaptações. Existem alterações fisiológicas naturais do processo gestacional. Essas alterações incluem o equilíbrio e a coordenação motora da gestante. O exercício físico proporciona melhora desses sintomas, além de benefícios para a mãe e o bebê. A prática de exercício físico deve ser orientada por um profissional de educação física após liberação do médico especialista.Este estudo procurou mostrar a importância da prática de exercícios físicos orientados para a promoção de benefícios à grávida e ao feto. Palavras-chave: Exercício físico. Gravidez. Benefícios. Indicações 1 Introdução O período gestacional compreende diversas mudanças corporais. São aproximadamente 36 semanas de gravidez, em que a gestante sofre adaptações fisiológicas e anatômicas. Durante a gestação, o crescimento e desenvolvimento do feto

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Objective:To evaluate the quality of life and its association with daily physical activity and disease control in acromegalic patients. Subjects and methods: A cross-sectional, case series study, composed of 42 patients recruited from the Neuroendocrinology Unit of the University Hospital of Brasilia. Level of physical activity was accessed by the International Physical Activity Questionnaire (IPAQ 6-short-form), which evaluates the weekly time spent on physical activity of moderate to vigorous intensity in different contexts of life. Quality of life was evaluated by The Medical Outcome Study Questionnaire Short Form (SF-36). Data was compared to growth hormone (GH) and insulin-like growth factor (IGF-1) levels. Students' t test and Fisher test were used, p < 0.05, SPSS 17.0. Results: Twenty--two women, aged 51.33 ± 14.33 and 20 men, aged 46.2 ± 13.18 were evaluated. Arthralgia was present in 83% of cases. In men, the most common sites of pain were the knees (73%), spine (47% lumbar, and 53% thoracic and cervical segments), hands and wrists (40%). Higher scores on SF-36 were observed in patients with intermediate or high levels of physical activity, in the domains social functioning (75 CI 57.3-92.6), general health (75.5 CI 60.4-90.5), mental health (70 CI 57.8-82.1). Conclusions: In this study, the presence and severity of physical disability and pain were not associated with initial GH and IGF-1 levels or time of exposure to GH excess. However, the patients considered controlled, with normal a normal age-adjusted IGF-1, presented higher scores in SF-36, in physical and emotional domains, compared with patients with persistent hypersomatotrophism. These findings suggest benefits of metabolic control in self-reported quality of life. Arq Bras Endocrinol Metab. 2013;57(7):550-7 Keywords Acromegaly; quality of life; functional capacity; activities in daily life RESUMO Objetivo: Avaliar a qualidade de vida e sua associação com a prática de vida diária e controle metabóli-co em pacientes portadores de acromegalia. Sujeitos e métodos: Estudo seccional de série de casos, composto por 42 pacientes recrutados na Unidade de Neuroendocrinologia do Hospital Universitário de Brasília. O nível de atividade física foi estimado pelo Questionário Internacional de Atividade Física (IPAQ-6), que avalia o tempo gasto semanalmente em atividades físicas que variam de intensidade em diferentes contextos de vida. A qualidade de vida foi avaliada pelo questionário SF-36. Os dados obtidos foram comparados aos níveis de hormônio do crescimento (GH) e fator de crescimento semelhante à insulina (IGF-1). Os testes t Students e Fisher foram aplicados e p < 0,05 foram considerados significativos, SPSS 17.0. Resultados: Avaliaram-se 22 mulheres com idades de 51,33 ± 14,33 e 20 homens com idades de 46,2 ±13,18. Artralgia foi relatada em 83% dos pacientes. Em homens, os sítios de dor mais comuns foram os joelhos (73%), coluna vertebral (47% lombar, 53% segmentos torácico e cervical), mãos e quadris (40%). Os maiores escores no SF-36 fo...

ARTIGO ORIGINAL | ORIGINAL ARTICLE RESUMOO presente estudo teve como objetivo estudar as respostas hematológicas agudas em indivíduos submetidos a um teste cardiorrespiratório incremental máximo em esteira sem inclinação. Foram analisados 23 indivíduos, 12 homens e 11 mulheres, com idade média de 30,2 (± 8,4) anos, massa corporal média de 68,1 (±18,1) kg, estatura média de 170,2 (±9,8) cm, e IMC médio de 23,2 (±3,7) kg/m², fisicamente ativos, com prática mínima de 3,5 horas semanais de exercício há pelo menos 6 meses. Os sujeitos foram submetidos a um teste incremental máximo em esteira, com recolha de sangue venoso para análise antes e imediatamente após o término do teste. Utilizou-se o teste de Wilcoxon para análise das variáveis pré e pós teste. Adotou-se p < 0,05 como nível de significância. Houve elevação significativa na contagem de leucócitos (69,23%; p = 0,005), linfócitos (17,56%; p = 0,043), monócitos (85,41%; p = 0,012) e granulócitos (28,21%; p = 0,011). Foi igualmente observado um aumento significativo, nas hemácias (3,42%; p = 0,042), no hematócrito (5,39%; p = 0,038) e na hemoglobina (5,58%; p = 0,013). Com o presente estudo, concluímos que a realização de um teste máximo de corrida em esteira pode elevar significativamente as concentrações sanguíneas de leucócitos e respetivas subpopulações, assim como de hemácias e hemoglobina. Palavras-chave: Células Sanguíneas, Teste de Esforço, Contagem de Leucócitos ABSTRACTThe present study aimed to study acute hematologic responses in individuals undergoing a cardiopulmonary maximum incremental treadmill test without inclination. Were analyzed 23 individuals, 12 men and 11 women, with a mean age of 30.2 (± 8.4) years, mean weight of 68.1 (± 18.1) kg, mean height of 170.2 (± 9.8) cm, and mean BMI of 23.2 (±3.7) kg/m², physically active, with a minimum practice of 3.5 hours per week of exercise for at least 6 months. The subjects were submitted to a maximal incremental treadmill test, with venous blood collection for analysis before and immediately after completion of the test. Was used Wilcoxon test for analysis of pre and post test variables. Was adopted p < 0.05 as significance level. There was a significant increase in leukocyte count (69.23%; p = 0.005), lymphocytes (17.56%; p = 0.043), monocytes (85.41%; p = 0.012) and granulocytes (28.21%; p = 0.011). It was also observed a significant increase in erythrocytes (3,42%; p = 0,042), hematocrit (5.39%; p = 0.038) and hemoglobin (5.58%; p = 0.013). With this study, was concluded that performing a maximal test of treadmill running can significantly raise blood levels of leukocytes and respective sub-populations, as well as red blood cells and hemoglobin.