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Sakuko Ishizaki, Takako Koshimizu, Kae Yanagisawa, Yoshiko Akiyama, Yuko Mekada, Nobuhiro Shiozawa, Noriko Takahaski, Jun Yamakawa and Yukari Kawano

This study was to assess the effect of a fixed dietary intake on biomarkers of red blood cell (RBC) biosynthesis and degradation. Over a two-year period, eight collegiate rhythmic gymnasts participated in this study. During the first year, they ate self-selected diets. During the second year, a fixed dietary intake involving consumption of common Japanese foods containing 15 mg iron and 1500 kcal energy was maintained for 4 wk at the beginning of the program. Fixed dietary intakes resulted in significantly increased intakes of protein, minerals and vitamins, and significantly decreased fat intake, but total energy and carbohydrate intakes were unchanged. Mean values of RBC, Hb, Ht, or TIBC were not affected by the intervention. A fixed dietary intervention appeared to enhance RBC turnover by increasing the capacity for erythrocyte biosynthesis and degradation, although the prevalence of iron-deficiency anemia remained unchanged.

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Christopher C. Imes, Yaguang Zheng, Dara D. Mendez, Bonny J. Rockette-Wagner, Meghan K. Mattos, Rachel W. Goode, Susan M. Sereika and Lora E. Burke

data from the first 12 months of the Self-Efficacy Lifestyle Focus (SELF) trial, which focused specifically on the period of weight loss. 16 The trial was approved by the University of Pittsburgh Institutional Review Board and was conducted between May 2009 and March 2013. The SELF trial was an 18