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本文对Fels追踪研究中8—17岁男性青少年的相对骨龄与脂肪分布类型之间的关系做了分析。按体重/身高~2调整后,如用每个年龄的三种皮褶厚度(ST)指数的均值表示脂肪分布类型的话,8—12岁时,脂肪分布类型呈外周型分布,但13岁后开始朝向心型发展呈全身性分布。如用肩胛下ST/(肩胛下ST+肱三头肌区ST)的比例表示的话,那么14—17岁时,相对骨龄早者(简称早组)与相对骨龄晚者(简称晚组)相比,前者有较明显的向心型分布倾向。13—14岁时,早组的上述比值的年增长明显大于晚组。但是,按脂肪分布类型指数等级的基线和体重/身高~2调整之后,7、11或14岁时的相对骨龄不能预测17岁时的脂肪分布类型指数的等级。所以,我们可以得出这样的结论:如按本文的比例指数加以定量的话,脂肪分布类型与男性青少年的相对骨龄只有微弱的关系。他们的脂肪分布类型可能与其它成熟指征(如男性青春期的第二性征)有明显的关系。
This article analyzes the relationship between relative bone age and type of fat distribution among 8-17 year old male adolescents in the Fels follow-up study. When adjusted for body weight / height ~ 2, the mean fat distribution type for the three skinfold thickness (ST) indices for each age ranged from 8 to 12 years with a peripheral pattern of fat distribution, but after 13 years of age Began to develop toward the heart-type systemic distribution. As with the subscapular ST / (subscapular ST + triceps ST) ratio of the words, then 14-17 years of age, the relative early age of the bones (referred to as the early group) and relative skeletal age compared with late (referred to as the late group) , The former has a more pronounced centripetal distribution. At 13-14 years of age, the above group’s annual growth rate for the early group was significantly greater than for the late group. However, relative bone age at 7, 11, or 14 years after adjusting for Baseline and Body Weight / Height ~ 2 of the Fat Distribution Type Index grade did not predict the grade of the Fat Distribution Type Index at 17 years of age. Therefore, we can conclude that the fat distribution type has only a weak relationship with the relative bone age of male adolescents, as quantified in this paper. Their type of fat distribution may be clearly related to other mature indications (eg, secondary sexual characteristics in male adolescence).