新华社天津8月12日电（记者张建新、栗雅婷）正值暑期，儿童体重管理与饮食健康成为家长关注的焦 点之一。专家提醒，暑期儿童健康管理需兼顾科学性与灵活性，生长发育是动态过程，家长应避免陷 入"体重焦虑"，但也应警惕孩子体重波动过大。 为了孩子能够保持健康体重，专家建议，可以每周固定时间（如晨起空腹）记录孩子体重，每月测量身 高，若发现BMI连续两周向上升高或下降超过5%，需及时调整饮食运动计划。 "医院近期接诊多例因假期饮食不规律导致体重异常波动的患儿。"天津市中医药研究院附属医院体重管 理门诊主任医师张勇表示，"临床中常见家长因孩子'看着瘦'就担心营养不良，或因'脸圆'焦虑肥胖，但 体重评估需依托科学指标。" 张勇介绍，国际通用的儿童体重评估标准为身体质量指数（BMI），计算公式为体重（kg）÷身高 （m）的平方。家长可将计算结果与同年龄、同性别儿童的BMI标准曲线比对，若数值处于85%至95% 的区间，提示超重；超过95%属于肥胖；低于5%则需警惕体重过轻。 针对暑期体重管理，专家提醒，两个月的体重变化不存在"一刀切"的固定范围。体重管理的弹性指标需 综合年龄、身高增长、身体成分等因素——处于青春期前期的孩子 ...

Core Insights - The article discusses the "Summer Light Plan" launched by the Capital Medical University Affiliated Capital Children's Medical Center, aimed at managing children's weight during the summer, a critical period for obesity management [1] Group 1: Dietary Management - The summer provides a controllable family dietary environment, making it an ideal time to adjust dietary structures [1] - Key dietary management strategies include controlling portion sizes and cultivating good eating habits, such as the "put down the utensils" method to slow down eating [1] - Parents are encouraged to educate children about nutrition, helping them read food labels to avoid hidden sugars in snacks and beverages [2] Group 2: Physical Activity - Establishing regular exercise habits during summer is crucial to prevent rapid weight gain, with recommendations for 1 to 2 hours of outdoor activities daily [2] - Activities can include team sports and household chores to reduce sedentary behavior, with screen time limited to 2 hours for non-educational purposes [2] Group 3: Sleep and Emotional Support - Adequate sleep is emphasized as a factor in weight management, with recommendations of 9-11 hours for elementary school students and 8-10 hours for middle school students [3] - A supportive family environment is essential for effective weight management, with parents playing a crucial role in fostering confidence and self-management in children [3][4] - Parents should avoid excessive criticism and focus on positive reinforcement, while also being attentive to children's emotional states that may lead to overeating [4]