Freshman 15: Fact or fiction?
Freshman 15: Fact or fiction?
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DOI：
10.1038/oby.2006.163
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发表时间：
2006-08-01
期刊：
影响因子：
6.9
通讯作者：
Fields, David A.
中科院分区：
文献类型：
--
作者：
Morrow, Michelle L.;Heesch, Kristiann C.;Fields, David A.
目的：本研究的目的是调查女新生在大学一年级期间体重、BMI、身体成分和脂肪分布的变化。研究方法和程序：招募2004至2005学年的女新生参加。初次基线访视发生在 2004 年秋季学期的前 6 周内，后续访视发生在 2005 年春季学期的最后 6 周内。每次访问时，都会获取身高、体重、BMI、腰围和臀围以及身体成分（通过 DXA）。结果：137 名参与者完成了秋季和春季访问。秋季和春季访问之间观察到体重（58.6 vs. 59.6 kg）、BMI（21.9 vs. 22.3）、体脂百分比（28.9 vs. 29.7）、总脂肪量（16.9 vs. 17.7 kg）、去脂质量（38.1 vs. 38.4 kg）、腰围显着（p < 0.0001）增加（69.4 与 70.3 cm）和臀围（97.4 vs. 98.6 cm），腰臀比没有观察到显着差异（0.71 vs. 0.71；p = 0.78）。讨论：尽管具有统计学意义，但大学一年级期间，女性的体重、身体成分和脂肪量变化不大。这些结果并不支持大众媒体所宣传的所谓“新生15岁”体重增加的说法。
Objective: The objective of this study was to investigate changes in body weight, BMI, body composition, and fat distribution among freshman women during their 1st year of college.Research Methods and Procedures: Freshman women during the 2004 to 2005 academic year were recruited to participate. The initial baseline visit occurred within the first 6 weeks of the fall 2004 semester, with the follow-up visit occurring during the last 6 weeks of the spring 2005 semester. At each visit, height, weight, BMI, waist and hip circumferences, and body composition (by DXA) were obtained.Results: One hundred thirty-seven participants completed both the fall and spring visits. Significant (p < 0.0001) increases between the fall and spring visits were observed for body weight (58.6 vs. 59.6 kg), BMI (21.9 vs. 22.3), percentage body fat (28.9 vs. 29.7), total fat mass (16.9 vs. 17.7 kg), fat-free mass (38.1 vs. 38.4 kg), waist circumference (69.4 vs. 70.3 cm), and hip circumference (97.4 vs. 98.6 cm), with no significant difference observed in the waist-to-hip ratio (0.71 vs. 0.71; p = 0.78).Discussion: Although statistically significant, changes in body weight, body composition, and fat mass were modest for women during their freshman year of college. These results do not support the purported "freshman 15" weight gain publicized in the popular media.