沉重的书包【沉重的书包影响青少年健康】

时间：2018-12-28 03:23:51　来源：柠檬阅读网本文已影响人

　　children everywhere will be lugging1 stuffed （塞满的）backpacks filled with school supplies and lunches for the first day of school.According to reports, children hurt their back. or spine （脊椎)because their backpack is too big, too heavy or worn incorrectly.
　　Healthexpertssaidyou could protect a growing back with a good fit and good wearing habits.Make sure those slingback satchels ( 书包 ) fit properly, and adjust the straps(带) to fit your child"s body.
　　They should limit the weight to what a child can carry comfortably.The size of the backpack should match the size of the child.If the backpack has two straps,make sure they use both of them. They should wear their backpack right over the strongest muscles(肌肉) of the back.
　　Health experts" advice varies2, but most agree that a backpack should weigh no more than 10 to 15 percent of a child"s body weight. A backpack is too heavy if a child struggles to put it on or take it off,leans3 forward while wearing it, complains of pain in the neck, shoulder, back, knees or experiences tingling4 or numbness(麻木)in his arms or hands.Experts said that while shopping,you might want to keep your eye ont for "ergo-packs."
　　
　　注释：
　　1. lug vt. 吃力地携带
　　2. vary vi. 变化，呈差异
　　3．lean vi．斜，倾斜
　　4．tingle vi．感到刺痛
　　
　　开学了，各地的学童将吃力地背着书包去上学，这些背包里塞满了开学第一天的各种学习用品和午餐。据报导，孩子们的后背或者脊椎之所以被弄伤，是因为他们的背包太大、太重或者背背包姿势不正确。
　　保健专家称，孩子的背部正处在发育阶段，可以通过合身的背包以及良好的背包习惯来实现对它的保护。
　　对那些有后背肩带的书包，家长要确保它完全适合孩子，而且要根据孩子的身体情况调整好背带，使其合身。
　　应该把背包的重量限定在孩子能轻松承受的范围内，且背包的大小应与孩子身材的大小相匹配。若背包有两根背带，要保证两根背带都用上。背背包时，孩子们要恰好用背部最强壮的肌肉来承担背包的重量。
　　虽然保健专家的建议各不相同，但是他们中的大多数认为，背包的重量不应该超过孩子自身体重的10％到15％。如果孩子背背包或卸背包时很吃力，背背包时身体前倾，抱怨颈部、肩膀、背部和膝盖疼痛，或者手臂或手有刺痛或麻木感，则说明孩子的背包太重。专家建议，购买书包时，人们可以留意那种最能发挥后背承载力的背包。

相关热词搜索：书包 青少年 沉重影响

沉重的书包【沉重的书包影响青少年健康】

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