Сколько должен весить школьный ранец?

Портфель, ранец, рюкзак — как только ребенок пойдет в школу, этот предмет станет важнейшей деталью школьных будней. И он, разумеется, будет влиять на здоровье ребенка, особенно, его спины

Сколько должен весить ранец? — об этом думают многие родители, поднимая рюкзак первоклассника или портфель второклассника.Школьные ранцы должны соответствовать санитарным нормам, учитывать особенности детского развития, детского позвоночника,который продолжает формироваться.


Вес ранца

Американские врачи, проводившие исследования в начальных и средних классах школ, пришли к выводу, что вес портфеля не должен превышать 10% массы тела ребенка.

Книги для начальных классов должны весить максимум 300 граммов, учебники для 5-6 классов — 400 граммов, учебники для 7-9 классов — 500 граммов. В портфелях выпускников не должно быть учебников, тяжелее 600 граммов.

Вес ранца первоклассника со всем содержимым не должен быть больше 1,5-2 килограмм. Пустой ранец должен весить 500-800 грамм. Например, в 11-13 лет безопасно переносить массу не более 3 кг.



Учебники весят слишком много, из-за чего портфели первоклассников становятся неподъемными. Тяжелый день для первоклассника — это когда портфель весит килограммов шесть.

В целом, для маленького ребенка носить в школу  портфель весом 7 кг равносильно тому, что как если бы взрослый человек каждый день носил на работу килограммов 20- 30.

Форма ранца

Если рост ребенка до 120 см., стоит приобрести ранец горизонтального вида.

Если ребенок выше 130 см. — обратите внимание на вертикальные модели.

Спинка ранца

Жесткая спинка ранца предотвращает давление содержимого ранца на спину школьника. Современные производители указывают на своих портфелях, что он ортопедический.

Помните, что:

- в той части ранца, которая соприкасается со спиной, должны лежать твердые книги;

- на спинке должна быть мягкая прокладка из сетчатой ткани, чтобы спина у ребенка не потела.

Не путайте ранец с рюкзаком, это совсем-совсем не одно и тоже ранец жесткий и везде и прежде всего в спинке, что прилегает к спине ребенка и по этому ранец со всех сторон правильный портфель, а вот рюкзак если у него мягкая спинка ребенку противопоказан.




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