A phenotypic characteristic, acquired during growth and development, that is not genetically based and therefore cannot be passed on to the next generation for example, the large muscles of a weightlifter.
How do you define it? What are the recommended courses of action? What are the potential consequences of delays in weight gain? What defines normal weight gain?
A growth curve for a child whose growth followed one pattern for the first four months of life and then shifted to a new pattern. A growth curve for a child who is undernourished.
This pattern can be described as a percentile on a growth curve. Children generally gain weight in proportion to their age and height or length. Sometimes, normal children may grow at a given rate for a certain period of time, followed by a somewhat different rate of growth for another period of time.
Causes What could cause a child to gain weight slowly? There is a range of possible reasons for why a child might gain weight slowly, and often more than one reason is contributing at a time.
Medically, anything that causes the following could be a contributing factor: Inadequate food intake Problems with digestion or absorption of food or absorption Increased metabolism Children born prematurely before their due date are at particularly high risk for delays in weight gain.
Also, for some children — those with small parents, for instance — relatively slow weight gain may be normal. Signs and symptoms What defines slow weight gain? As noted above, health care providers expect to see a child maintain a stable pattern of growth — that is, growth that consistently follows a particular weight-for-age or weight-for-height percentile.
Their weight or weight-for-height is two or more standard deviations below the mean for their gender and age; or 2. Their weight curve has crossed downward by more than two major percentile lines on the CDC or WHO growth curves after having previously achieved a stable pattern of growth.
As noted above, some healthy children may achieve a stable pattern of growth and have their growth slow such that they continue on another curve. How is slow weight gain diagnosed? Carefully chosen laboratory tests and other diagnostic studies can also provide valuable information.
What can be done in cases of slow weight gain? How can slow weight gain affect my child in the long term? The outlook for a child with slow weight gain depends on the timing and severity of the issue, as well as on the presence of any underlying disease. Some questions to ask your doctor might include:How does a person's food pattern over time contribute to the development of diseases?Provide examples.
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Nicklas TA, Demory-Luce D, Yang SJ, et al.
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After collecting growth measurements from thousands of U.S. children over a period of time, the CDC was able to show the range of these measurements on one chart, using percentile curves. Being in a high or a low percentile does not necessarily mean that a child is healthier or has a growth or weight problem.