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Báo cáo y học: " Effects of supplemental fish oil on resting metabolic rate, body composition, and salivary cortisol in healthy adults"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Effects of supplemental fish oil on resting metabolic rate, body composition, and salivary cortisol in healthy adults | Noreen et al. Journal of the International Society of Sports Nutrition 2010 7 31 http www.jissn.eom content 7 1 31 jissn journal of the onal society of sports nutrition RESEARCH ARTICLE Open Access Effects of supplemental fish oil on resting metabolic rate body composition and salivary cortisol in healthy adults Eric E Noreen Michael J Sass Megan L Crowe Vanessa A Pabon Josef Brandauer Lindsay K Averill Abstract Background To determine the effects of supplemental fish oil FO on resting metabolic rate RMR body composition and cortisol production in healthy adults. Methods A total of 44 men and women 34 13y mean SD participated in the study. All testing was performed first thing in the morning following an overnight fast. Baseline measurements of RMR were measured using indirect calorimetry using a facemask and body composition was measured using air displacement plethysmography. Saliva was collected via passive drool and analyzed for cortisol concentration using ELISA. Following baseline testing subjects were randomly assigned in a double blind manner to one of two groups 4 g d of Safflower Oil SO or 4 g d of FO supplying 1 600 mg d eicosapentaenoic acid EPA and 800 mg d docosahexaenoic acid DHA . All tests were repeated following 6 wk of treatment. Pre to post differences were analyzed using a treatment X time repeated measures ANOVA and correlations were analyzed using Pearson s r. Results Compared to the SO group there was a significant increase in fat free mass following treatment with FO FO 0.5 0.5 kg SO -0.1 1.2 kg p 0.03 a significant reduction in fat mass FO -0.5 1.3 kg SO 0.2 1.2 kg p 0.04 and a tendency for a decrease in body fat percentage FO -0.4 1.3 body fat SO 0. 3 1.5 body fat p 0.08 . No significant differences were observed for body mass FO 0.0 0.9 kg SO 0.2 0.8 kg RMR FO 17 260 kcal SO -62 184 kcal or respiratory exchange ratio FO -0.02 0.09 SO 0.02 0.05 . There was a tendency for salivary cortisol to decrease in the FO group FO -0.064 0.142 pg dL