期刊名称：American Journal of Sports Science and Medicine
印刷版ISSN：2333-4592
电子版ISSN：2333-4606
出版年度：2014
卷号：2
期号：5A
页码：48-50
DOI：10.12691/ajssm-2-5A-11
语种：English
出版社：Science and Education Publishing
摘要：Growth and physical maturation are dynamic processes encompassing a broad spectrum of cellular and somatic changes. The most obvious signs of physical growth are changes in overall body size. The children of the same age may differ in rate of physical growth. Ethnic variations in growth rate are also common. Thus growth norms (age-related averages for height and weight) must be applied cautiously. Physical growth, like other aspects of development, results from a complex interplay between genetic and environmental factors. Moreover, the endocrine glands also control the vast physical changes of childhood and adolescence. Although heredity remains important, environmental factors continue to affect genetic expression. Good nutrition, relative freedom from disease, and emotional well-being are essential to children’s healthy development. Changes in size, proportions, and muscle strength support an explosion of new gross-motor skills. Physical activity is needed for normal growth and development, and for young people to reach their potential in muscle and bone development. Further, the psychological, social, and physical development process project powerful influences on sport participation. Sports scientists, physicians and physical educators must be familiar with the normal patterns of growth and development of the child and adolescent. This allow finding out deviations during the pre-participation examination, guiding children into appropriate activities, aiding them in setting realistic goals concerning sports participation. It also provides guidance to the community and coaches in the design of safe and effective training programme.
