Este estudo teve como objetivo identificar e analisar as consequências objetivas e subjetivas de uma gravidez em adolescentes, considerando-se as diferenças socioeconômicas entre elas. Foi realizado um estudo exploratório, qualitativo, com 20 adolescentes que deram à luz entre junho de 2009 a junho de 2010. O instrumento de coleta de dados foi elaborado na forma de uma entrevista semiestruturada e para a verificação dos dados utilizou-se a análise de conteúdo. Entre os resultados observou-se que, apesar de as famílias com renda mais baixa terem em um primeiro momento aceitado melhor a gravidez, o maior impacto também ocorreu entre estas famílias, principalmente quanto ao adiamento ou comprometimento dos projetos educacionais, menor chance de qualificação profissional e dependência financeira absoluta da família. Os métodos contraceptivos eram conhecidos, mas não utilizados, o que demonstra o desafio de alcançar estratégias de prevenção para este público-alvo, com o qual os programas desenvolvidos, além de informativos, devem abordar as vivências emocionais, sociais e culturais.

To reduce transmission of the coronavirus, the Brazilian government adopted containment measures to control the virus’ spread, including limitations to the practice of physical activity. It was aimed to analyze the effects of COVID-19 quarantine on physical activity levels, energy expenditure, quality of life, and level of stress in a sample of the Brazilian population. The sample included 426 participants (7 to 80 years). The International Physical Activity Questionnaire, Short form survey-36 (SF-36), and Stress Perception Scale, were used to assess the level of physical activity, quality of life and stress, respectively. The anthropometric data was used to the assessment of body mass index and basal metabolic rate. Body weight increased significantly in all sample (p < 0.05). During the pandemic, 84% of the sample indicated a low level of physical activity. Furthermore, weekly energy expenditure decreased significantly in all age groups during the pandemic (children p < 0.0001; adolescents: p < 0.0001; adults p < 0.001, and elderly p < 0.0001). All aspects of quality of life, significantly reduced in both sexes in all age groups (p < 0.05). With the exception of children, stress levels increased significantly during the pandemic (adolescents: male: p = 0.003, female: p < 0.05; adults: male: p = 0.003, female: p = 0.01, and elderly: male: p = 0.02, female: p = 0.03). Findings from the present study suggests that COVID-19 social isolation has negatively affected Brazilian’ physical activity and quality of life.

Introduction: Since muscle injuries trigger inflammatory processes and inflammation generates heat due to increased local metabolism, hence the level of inflammation can be measured by the temperature gradient. Objective: To assess the feasibility of application of thermography in the diagnosis of injuries caused by physical training. Methods: The study was conducted with adolescent athletes of the Paraná Club, Curitiba, Brazil, who were divided into two groups, namely control and experimental. The control group attended a training session of low intensity and the experimental group a high intensity one. First, a thermographic image of the quadriceps of each athlete was acquired before the training session. After the training session, a blood sample was collected to check the level of serum lactate of each athlete. Subsequently, 24 hours after training, an extra blood sample was performed to check the level of serum CK of each athlete. Another individual thermographic image of the quadriceps was acquired at that stage. Results: The correlation between the lactate and CK was positive and statistically significant rho value = 0.661 (p = 0.038). There was no statistically significant correlation between CK values 24 h post-training and the change in temperature (24 h post-training -pre-training) in the muscles evaluated for the control group. There was a statistically significant difference in temperature (24 h post-training -pre-training) (p<0.05) for the three muscles studied only in the experimental group. Conclusion: The results of this study suggest the possibility of use of thermographic images, together with creatine kinase, in order to determine the intensity and location of post-training muscle damage, since the previously mentioned biochemical marker cannot determine the anatomic location of the muscle injury.

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Using molecular dynamics we investigate the thermodynamics, dynamics, and structure of 250 diatomic molecules interacting by a core-softened potential. This system exhibits thermodynamic, dynamic, and structural anomalies: a maximum in density-temperature plane at constant pressure and maximum and minimum points in the diffusivity and translational order parameter against density at constant temperature. Starting with very dense systems and decreasing density the mobility at low temperatures first increases, reaches a maximum, then decreases, reaches a minimum and finally increases. In the pressure-temperature phase diagram the line of maximum translational order parameter is located outside the line of diffusivity extrema that is enclosing the temperature of maximum density line. We compare our results with the monomeric system showing that the anisotropy due to the dumbbell leads to a much larger solid phase and to the appearance of a liquid crystal phase.

Introdução: A Terapia Subcutânea, também chamada de Hipodermóclise, ainda é pouco discutida e utilizada. Essa técnica consiste na administração de soluções na hipoderme, camada mais profunda da pele, cuja vascularização é similar à que se observa nos músculos. Objetivo: Analisar a produção científica indexada nos periódicos nacionais relacionados ao uso da terapia subcutânea na assistência de Enfermagem. Materiais e Métodos: Optou-se pela revisão sistemática de caráter exploratório com abordagem qualitativa. Realizou-se a busca de estudos em periódicos nacionais publicados nos últimos seis anos, na base de dados da Literatura Latino-Americana em Ciências de Saúde (LILACS) e na Scientific Eletronic Library Online (SciELO). Como os dados sobre o assunto são escassos, utilizou-se o buscador Google acadêmico para incluir publicações do Instituto Nacional do Câncer (INCA). Adotaram-se os termos "hipodermóclise", "terapia subcutânea" e "cuidados paliativos". Resultados: Os estudos analisados resultaram nos seguintes agrupamentos: indicações e contraindicações; vantagens e desvantagens; locais indicados para punção; medicamentos e fluidos utilizados; e a execução da técnica para a punção. Evidenciou-se que a Terapia Subcutânea é um recurso importante para os pacientes em cuidado paliativo. Ela pode contribuir para promoção da qualidade de vida desses doentes. Os riscos são mínimos, os efeitos colaterais são raros, reversíveis e de pouca importância clínica; as vantagens desta via superam suas possíveis desvantagens. Conclusões: A técnica facilita a alta hospitalar do paciente, favorecendo o cuidado no domicílio, é de fácil aplicação e manipulação e possui baixos custos. No entanto, são necessárias pesquisas para consolidar o uso desse procedimento no Brasil, considerando que há carência de estudos nessa área.

Introductions e objective: To compare portable ultrasound (US) and bioimpedance analysis (BIA) with skinfolds (SF) to estimate body fat percentage in adults. Methods: 195 military men were assessed and they had their weight, height, body fat by bioimpedance, skinfold in 9 points and ultrasound (US) collected. linear regression was used for the development of a new equation for body fat percentage estimation in young adults (males). results: The group had mean age of 23.07 ± 7.55 years and height and weight with mean and standard deviation of 72.65 ± 10.40 kg, 1.74 ± 0.06 meters, respectively. Comparing the results between the US and SF, there was significant correlation for all points evaluated, with the thigh skinfold presenting the highest correlation, followed by the chest one. When the three methods are compared, the US presented better correlation with the BIA than with SF. A new equation for estimation of fat percentage by US can hence be proposed. Conclusions: It was noticed that in the studied population, US and BIA can estimate the body fat percentage with good correlations with the SF method.

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