Previous studies have shown that maternal consumption of polyphenol-rich foods after the third trimester of pregnancy may interfere with the anatomical and functional activity of the fetal heart as, to our knowledge, there are no validated instruments to quantify total polyphenols in pregnant women. The aim of this study was evaluate the reproducibility and validity of a food frequency questionnaire (FFQ), with 52 items, to assess the intake of polyphenol-rich foods in pregnant women in Brazil. This cross-sectional study included 120 pregnant women who participated in nutritional interviews in two moments. The intake of polyphenols estimated by the developed FFQ was compared with the average of two 24-h recalls (24HR), with the average intake measured by a 3-day food diary (D3days) and with the urinary excretion of total polyphenols. The triangular method was applied to calculate Pearson's correlation coefficients, intraclass correlation and Bland-Altman plots for the FFQ, using an independent biochemical marker, in addition to classification by quarters of consumption. The questionnaires were log transformed, adjusted for body mass index and gestational age. The adjustment for energy was applied only of 24HR and D3days. Analysis of the reproducibility between the FFQ showed a very high correlation (r = 0.72; P < 0.05). A low but significant association was observed between the FFQ and urinary excretion (0.23; P = 0.01). The association between the dietary survey methods was moderate to very high (r = 0.36 to r = 0.72; P < 0.001). In conclusion, this questionnaire showed reproducibility and validity for the quantification of consumption of total polyphenols in pregnant women.

Dietary intervention for maternal restriction of polyphenol-rich foods in the third trimester of pregnancy is accompanied by increase in plasma levels of PGE2 and reversal of fetal ductal constriction. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.

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Estado de hidratação de remadores de competição durante sessões de treinamento indoor e outdoor RESUMO O remo é caracterizado por altas demandas fisiológicas e desafios ambientais. O objetivo deste estudo foi acessar o nível de hidratação de remadores antes e depois de condições de treinamento indoor e outdoor. Dez remadores homens competitivos (20 ± 4 anos; 11 ± 2% gordura corporal; treinando 4h/ dia, 7 dias/ semana) realizaram duas sessões de treinamento de 16 km, uma indoor (60 min) e uma outdoor (80 min). Foram mensuradas a cor da urina (cartela de cor), a gravidade específica da urina (refratômetro), alterações na massa corporal, ingestão de líquidos e taxa de suor, antes e depois das sessões de treinamento. A desidratação estava presente em pelo menos 70% dos atletas, antes de ambas as sessões de treinamento, como mensurado pela cor da urina e gravidade específica da urina. Houve uma perda de massa corporal maior que 2% em 80% (indoor) e 70% (outdoor) dos remadores. A taxa de suor foi maior no indoor (1.80,7 L.h-1) comparado ao outdoor (1.20,4 L.h-1) (p = .016). A maioria dos remadores iniciou a manhã das sessões de treinamento hipohidratado e desidratou mais ainda, acima de 2% da massa corporal, devido ao suor, durante ambos os treinos. A taxa de suor e as mudanças na massa corporal foram maiores no treinamento indoor.