孩子肥胖 ,体重增加 ,皮下脂肪堆积 ,对心脏和呼吸系统都增加了负担。体重如超过正常儿标准的 5 0 %以上 ,则对肺功能有所影响 ,其表现是呼吸急促 ,稍一活动即气短 ,不能胜任较重的体力活动。可出现功能性肺活量下降 ,功能性残气量下降 ,即限制性通气功能障碍。其原因是由于胸 Child obesity, weight gain, subcutaneous fat accumulation, the heart and respiratory system have increased the burden. Weight, such as more than the normal standard of more than 50%, have an impact on pulmonary function, the performance is shortness of breath, a little activity that is short of breath, can not do heavy physical activity. Functional decline in lung capacity may occur, decreased functional residual capacity, that is, restrictive ventilation dysfunction. The reason is due to the chest