Behavior of the training load, recovery and well-being in volleyball professional athletes in weeks with and without matches

O objetivo deste estudo foi comparar a carga interna de treinamento, o estado de recuperação e o bem-estar em atletas profissionais de Voleibol de acordo com a frequência semanal de jogos. A recuperação foi quantificada pela Escala de TQR, a carga pela PSE da sessão e o bem-estar pela escala de QBE. Para comparar os valores da Carga de Treinamento Semanal Total, o delta da Qualidade Total de Recuperação (ΔTQR) e o delta da Qualidade de bem-estar (ΔQBE) foi aplicado o teste ANOVA para medidas repetidas. Não foram encontradas diferenças significativas ao comparar a carga de treinamento com a frequência de jogos semanais, porém o tamanho do efeito foi muito elevado quando se comparou a diferença entre um e dois jogos semanais, assim como de nenhum a dois jogos na semana. Houve diferença entre o ΔTQR entre as semanas sem jogos e com dois jogos assim como entre as semanas com um e dois jogos. Já o ΔQBE foi diferente para as semanas que não havia a realização de jogos e aquelas com jogos. Concluise que, mesmo que não haja uma variação das cargas com diferentes frequências semanais de jogos, a recuperação assim como o bem-estar dos atletas foi alterada.The aim of this study was to compare the internal training load, recovery state and the well-being of volleyball professional athletes, according to the number of matches during the week. The recovery was quantified with TQR Scale, the training load with sRPE and the well-being with QBE Scale. The ANOVA was applied for repeated measures in order to compare the values of Total weekly training load, the delta of Total Quality Recovery (ΔTQR) and the delta of the quality of well-being (ΔQBE),. There was no significant difference among the training load and the frequency of weekly games, but the effect size was very high when it was compared to the difference between one and two weekly games, as well as any and two games in a week. There were differences on the ΔTQR between weeks without games and with two games, as well as weeks with one and two matches. The ΔQBE was different for weeks in which there was no game and those with matches, regardless of the frequency. It was concluded that, even if there is no variation of loads in different weekly frequency of matches, the athletes' recovery and well-being change.Facultad de Humanidades y Ciencias de la Educació

Behavior of the training load, recovery and well-being in volleyball professional athletes in weeks with and without matches

O objetivo deste estudo foi comparar a carga interna de treinamento, o estado de recuperação e o bem-estar em atletas profissionais de Voleibol de acordo com a frequência semanal de jogos. A recuperação foi quantificada pela Escala de TQR, a carga pela PSE da sessão e o bem-estar pela escala de QBE. Para comparar os valores da Carga de Treinamento Semanal Total, o delta da Qualidade Total de Recuperação (ΔTQR) e o delta da Qualidade de bem-estar (ΔQBE) foi aplicado o teste ANOVA para medidas repetidas. Não foram encontradas diferenças significativas ao comparar a carga de treinamento com a frequência de jogos semanais, porém o tamanho do efeito foi muito elevado quando se comparou a diferença entre um e dois jogos semanais, assim como de nenhum a dois jogos na semana. Houve diferença entre o ΔTQR entre as semanas sem jogos e com dois jogos assim como entre as semanas com um e dois jogos. Já o ΔQBE foi diferente para as semanas que não havia a realização de jogos e aquelas com jogos. Concluise que, mesmo que não haja uma variação das cargas com diferentes frequências semanais de jogos, a recuperação assim como o bem-estar dos atletas foi alterada.The aim of this study was to compare the internal training load, recovery state and the well-being of volleyball professional athletes, according to the number of matches during the week. The recovery was quantified with TQR Scale, the training load with sRPE and the well-being with QBE Scale. The ANOVA was applied for repeated measures in order to compare the values of Total weekly training load, the delta of Total Quality Recovery (ΔTQR) and the delta of the quality of well-being (ΔQBE),. There was no significant difference among the training load and the frequency of weekly games, but the effect size was very high when it was compared to the difference between one and two weekly games, as well as any and two games in a week. There were differences on the ΔTQR between weeks without games and with two games, as well as weeks with one and two matches. The ΔQBE was different for weeks in which there was no game and those with matches, regardless of the frequency. It was concluded that, even if there is no variation of loads in different weekly frequency of matches, the athletes' recovery and well-being change.Facultad de Humanidades y Ciencias de la Educació

Behavior of the training load, recovery and well-being in volleyball professional athletes in weeks with and without matches

O objetivo deste estudo foi comparar a carga interna de treinamento, o estado de recuperação e o bem-estar em atletas profissionais de Voleibol de acordo com a frequência semanal de jogos. A recuperação foi quantificada pela Escala de TQR, a carga pela PSE da sessão e o bem-estar pela escala de QBE. Para comparar os valores da Carga de Treinamento Semanal Total, o delta da Qualidade Total de Recuperação (ΔTQR) e o delta da Qualidade de bem-estar (ΔQBE) foi aplicado o teste ANOVA para medidas repetidas. Não foram encontradas diferenças significativas ao comparar a carga de treinamento com a frequência de jogos semanais, porém o tamanho do efeito foi muito elevado quando se comparou a diferença entre um e dois jogos semanais, assim como de nenhum a dois jogos na semana. Houve diferença entre o ΔTQR entre as semanas sem jogos e com dois jogos assim como entre as semanas com um e dois jogos. Já o ΔQBE foi diferente para as semanas que não havia a realização de jogos e aquelas com jogos. Concluise que, mesmo que não haja uma variação das cargas com diferentes frequências semanais de jogos, a recuperação assim como o bem-estar dos atletas foi alterada.The aim of this study was to compare the internal training load, recovery state and the well-being of volleyball professional athletes, according to the number of matches during the week. The recovery was quantified with TQR Scale, the training load with sRPE and the well-being with QBE Scale. The ANOVA was applied for repeated measures in order to compare the values of Total weekly training load, the delta of Total Quality Recovery (ΔTQR) and the delta of the quality of well-being (ΔQBE),. There was no significant difference among the training load and the frequency of weekly games, but the effect size was very high when it was compared to the difference between one and two weekly games, as well as any and two games in a week. There were differences on the ΔTQR between weeks without games and with two games, as well as weeks with one and two matches. The ΔQBE was different for weeks in which there was no game and those with matches, regardless of the frequency. It was concluded that, even if there is no variation of loads in different weekly frequency of matches, the athletes' recovery and well-being change.Facultad de Humanidades y Ciencias de la Educació

Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis

This work shows the results of a Proficiency Testing performed by a partnership between INMETRO and ANP. The performance of 49 Brazilian laboratories (using the z-score statistical test) in determining 10 quality parameters of ethanol fuel and biodiesel was evaluated. The certified reference values were provided by INMETRO, allowing a more rigorous assessment of the laboratories. For hydrous ethanol, the acidity parameter showed the lowest number of laboratories with satisfactory results (48%), while 85% of the laboratories presented satisfactory results for ethanol content. For biodiesel, the percentage of laboratories with satisfactory results ranged from 46% (kinematic viscosity) to 92% (acid number)

Same-day initiation of oral pre-exposure prophylaxis among gay, bisexual, and other cisgender men who have sex with men and transgender women in Brazil, Mexico, and Peru (ImPrEP): a prospective, single-arm, open-label, multicentre implementation study.

BACKGROUND: Although gay, bisexual, and other cisgender men who have sex with men (MSM) and transgender women have the highest HIV burden in Latin America, pre-exposure prophylaxis (PrEP) implementation is poor. We aimed to assess the feasibility of same-day oral PrEP delivery in Brazil, Mexico, and Peru. METHODS: Implementation PrEP (ImPrEP) was a prospective, single-arm, open-label, multicentre PrEP implementation study conducted in Brazil (14 sites), Mexico (four sites), and Peru (ten sites). MSM and transgender women were eligible to participate if they were aged 18 years or older, HIV-negative, and reported one or more prespecified criteria. Enrolled participants received same-day initiation of daily oral PrEP (tenofovir disoproxil fumarate [300 mg] coformulated with emtricitabine [200 mg]). Follow-up visits were scheduled at week 4 and quarterly thereafter. We used logistic regression models to identify factors associated with early loss to follow-up (not returning after enrolment), PrEP adherence (medication possession ratio ≥0·6), and long-term PrEP engagement (attending three or more visits within 52 weeks). This study is registered at the Brazilian Registry of Clinical Trials, U1111-1217-6021. FINDINGS: From Feb 6, 2018, to June 30, 2021, 9979 participants were screened and 9509 were enrolled (Brazil n=3928, Mexico n=3288, and Peru n=2293). 543 (5·7%) participants were transgender women, 8966 (94·3%) were cisgender men, and 2481 (26·1%) were aged 18-24 years. There were 12 185·25 person-years of follow-up. 795 (8·4%) of 9509 participants had early loss to follow-up, 6477 (68·1%) of 9509 were adherent to PrEP, and 5783 (70·3%) of 8225 had long-term PrEP engagement. Transgender women (adjusted odds ratio 1·60, 95% CI 1·20-2·14), participants aged 18-24 years (1·80, 1·49-2·18), and participants with primary education (2·18, 1·29-3·68) had increased odds of early loss to follow-up. Transgender women (0·56, 0·46-0·70), participants aged 18-24 years (0·52, 0·46-0·58), and those with primary education (0·60, 0·40-0·91) had lower odds of PrEP adherence. Transgender women (0·56, 0·45-0·71), participants aged 18-24 years (0·56, 0·49-0·64), and those with secondary education (0·74, 0·68-0·86) had lower odds of long-term PrEP engagement. HIV incidence was 0·85 per 100 person-years (95% CI 0·70-1·03) and was higher for transgender women, participants from Peru, those aged 18-24 years, Black and mixed-race participants, and participants who were non-adherent to PrEP. INTERPRETATION: Same-day oral PrEP is feasible for MSM and transgender women in Latin America. Social and structural determinants of HIV vulnerability need to be addressed to fully achieve the benefits of PrEP. FUNDING: Unitaid, WHO, and Ministries of Health in Brazil, Mexico, and Peru. TRANSLATIONS: For the Portuguese and Spanish translations of the abstract see Supplementary Materials section