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婴幼儿时期是生长的关键期,影响该时期生长的内外界因素很多。研究发现每年季节的变化对婴幼儿生长也起着不容忽视的作用,尤其在发展中国家婴幼儿的季节性生长更为突出。婴幼儿生长的季节性变化主要表现为身高在春夏季长得较快,体重在秋冬季增加较多。造成这种季节性生长的原因在发达国家和发展中国家各不相同。在发展中国家的婴幼儿,其季节性的生长速率变化主要受到气候的变化即旱季和雨季的影响,由
Infancy is a critical period of growth, affecting the period of growth of many internal and external factors. The study found that changes in the annual seasons also play an important role in the growth of infants and young children. In particular, the seasonal growth of infants and young children in developing countries is even more prominent. The seasonal changes of infants and young children are mainly manifested as the height grows faster in spring and summer and the weight gain more in autumn and winter. The reasons for this seasonal growth vary between developed and developing countries. In infants and young children in developing countries, seasonal changes in their rates of change are mainly affected by climate changes, namely the dry and rainy seasons, from