Influence of fasting during the night shift on next day eating behavior, hunger, and glucose and insulin levels: a randomized, three-condition, crossover trial.

AIMS: To investigate the influence of fasting during the night shift on eating behavior, hunger, glucose and insulin levels the following day. METHODS: Study with 10 male police officers who have been working at night. Participants were tested under three different conditions separated by at least 6 days of washout in a randomized, crossover design: "Night Shift Fasting" (NSF)-two nights of fasting during the night shift; "Night Shift Eating" (NSE)-two nights with the consumption of a standardized meal during the night shift (678 ± 42 kcal consumed at ~ 0200 h); and "Nighttime Sleep" (NS)-two nights of sleep. The morning after, blood glucose and insulin and hunger ratings were assessed, and food intake was assessed with an ad libitum test meal. Food intake was also assessed throughout the remainder of the day using a food record. Generalized Estimating Equations were used to analyze the effect of experimental condition. RESULTS: Food intake during the test meal, especially of proteins and fats, was higher after fasting during the night shift compared to the other conditions (p < 0.05), whereas desire to eat scores were lower after the NSF compared to NSE condition (p = 0.043). Hunger levels were lower after the NSF compared to the NS condition (p = 0.012). Insulin and HOMA-IR were also lower in the morning after NSF (p < 0.001). CONCLUSION: Fasting during the night shift leads to not only a higher intake of energy and macronutrients both in the early morning after work and throughout the next day, but also lower insulin levels and HOMA-IR in the morning. REGISTRATION NUMBER OF CLINICAL TRIAL: NCT03800732. Initial release: 01/09/2019. Last release: 02/23/2022.

Time-Related Eating Patterns Are Associated with the Total Daily Intake of Calories and Macronutrients in Day and Night Shift Workers.

The aim of the study was to investigate whether time-related eating patterns are associated with the daily intake of calories and macronutrients in Brazilian male military police officers (n = 81; 29-day and 52-night workers; mean age: 36.4 ± 0.9 and 38.5 ± 0.7 years, respectively). Energy and macronutrient intake were determined by a non-consecutive 3-day food recall. Time-related eating patterns, such as the time of the first and the last meals, eating duration, and caloric midpoint, were evaluated. Individuals were classified as "early" or "late" eaters according to the median caloric midpoint. Night shift workers showed a later eating time for the last meal (p < 0.001), longer eating duration (p < 0.001), and later caloric midpoint (p = 0.037) than day workers. Late eaters from both workgroups consumed more 24 h energy (p = 0.028), fat in calories (p = 0.006) and protein (calories: p < 0.001; percentage of total calories: p = 0.042), and less carbohydrates in calories (p = 0.010) intake than early eaters. The time of the first meal was negatively correlated with 24 h energy (p = 0.024) and carbohydrate (p = 0.031) intake only in day workers. The time of the last meal was positively correlated with 24 h energy (day workers: ß = 0.352; p = 0.044; night workers: ß = 0.424; p = 0.002) and protein (day workers: ß = 0.451; p = 0.013; night workers: ß = 0.536; p < 0.001) intake for both shift workers, and with carbohydrate (ß = 0.346; p = 0.016) and fat (ß = 0.286; p = 0.042) intake only in night workers. Eating duration was positively correlated with energy (day workers: ß = 0.473; p = 0.004; night workers: ß = 0.320; p = 0.023) and carbohydrate (day workers: ß = 0.418; p = 0.011; night workers: ß = 0.364; p = 0.010) intake in both groups. Thus, time-related eating patterns indicative of intake later at night are associated with increased daily energy and macronutrient intake.

Versão Brasileira do Tool for Assessing Cultural Competence Training (TACCT): uma Matriz de Competência Cultural / Brazilian Version of the Tool for Assessing Cultural Competence Training (TACCT): a Cultural Competence Model

Resumo: Introdução: Este estudo teve como objetivos traduzir, adaptar e avaliar as propriedades psicométricas do Tool for Assessing Cultural Competence Training (TACCT) para o português falado no Brasil. Métodos: Os itens do TACCT foram adaptados transculturalmente por meio das etapas de tradução, reconciliação, retrotradução, revisão da retrotradução, revisores independentes, etapa Delphi, pré-teste e incorporação dos resultados do pré-teste no processo de tradução. A versão final do instrumento para a língua portuguesa foi autoaplicada em 320 estudantes de uma escola médica. Para verificar a precisão da escala, adotou-se a análise de confiabilidade. Utilizamos a análise fatorial confirmatória para avaliação da validade de construto e dimensionalidade do instrumento. Resultado: A versão final do TACCT mostrou-se adequada e teve sua validade e confiabilidade confirmadas. Conclusão: A versão brasileira do TACCT é válida e confiável e tem potencial para ser utilizada no processo de implantação, revisão ou aprimoramento de currículos de escolas médicas brasileiras.

Abstract: Introduction: To translate, adapt and evaluate the psychometric properties of the Tool for Assessing Cultural Competence Training (TACCT) to Brazilian Portuguese. Methods: The TACCT items were transculturally adapted through several stages, namely: translation, reconciliation, backtranslation, revision of backtranslation, independent reviews, Delphi stage, pretest, and incorporation of the pretest results into the translation process. The final Portuguese version of the instrument was self-applied by 320 medical students. The scale accuracy was verified using reliability analysis. We employed confirmatory factor analysis to assess the construct validity and instrument dimensionality. Results: The final version of the TACCT was adequate, and its validity and reliability were confirmed. Conclusion: The Brazilian Portuguese version of the TACCT is valid and reliable, and it can be used to implement, review, and improve new curriculum content of Brazilian medical schools.