SALTATION AND STASIS - A MODEL OF HUMAN GROWTH
SALTATION AND STASIS - A MODEL OF HUMAN GROWTH
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DOI：
10.1126/science.1439787
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发表时间：
1992-10-30
期刊：
影响因子：
56.9
通讯作者：
JOHNSON, ML
中科院分区：
文献类型：
--
作者：
LAMPL, M;VELDHUIS, JD;JOHNSON, ML
人类生长被视为一个连续的过程，其特征是随着年龄的增长而改变速度。在正常婴儿出生后的前 21 个月内，每周（n = 10）、每半周（n = 18）和每天（n = 3）（19 名女性和 12 名男性）对正常婴儿进行连续身长测量。数据显示，长度的增长是通过不连续的、非周期性的跳跃式增长而发生的。这些爆发的幅度为 0.5 至 2.5 厘米，期间没有可测量的增长（持续 2 至 63 天）。这些数据表明，婴儿期正常发育的 90% 至 95% 是无生长的，长度增长是一个明显的跳跃过程，是打破背景停滞的增量爆发的过程。
Human growth has been viewed as a continuous process characterized by changing velocity with age. Serial length measurements of normal infants were assessed weekly (n = 10), semiweekly (n = 18), and daily (n = 3) (19 females and 12 males) during their first 21 months. Data show that growth in length occurs by discontinuous, aperiodic saltatory spurts. These bursts were 0.5 to 2.5 centimeters in amplitude during intervals separated by no measurable growth (2 to 63 days duration). These data suggest that 90 to 95 percent of normal development during infancy is growth-free and length accretion is a distinctly saltatory process of incremental bursts punctuating background stasis.