Abstract
Increasing weight of backpacks of school going students and its adverse effect on children’s body is shown through survey of Indore city. Outcome of survey shows that the average of ratio of backpack weight to body weight of school children was 20.62% which is higher than acceptable limit. It gives a method to reduce the impact of schoolbag on spinal cord of children body. In this paper, the effect of center of gravity of schoolbag on human body is observed which is shifted in a position which lowers the effect of schoolbag stress by applying CGSHIFTER method.
Highlights
Backpack is one of several forms of manual load carriage and is often used of school students as schoolbag acceptable limit which is recommended for schoolbag weight is 10-15% of child’s body weight [1]
centre of gravity (CG) level on spinal region and muscle activity are determined. These findings revealed that human posture and spine muscles were significantly affected by load carriage of different CG locations
It is clear that for reducing the impact of schoolbag weight stress on the weight of children, this CG of schoolbag should not lie in the region from P1 to P3 which is generally occurred for every schoolbag
Summary
Backpack is one of several forms of manual load carriage and is often used of school students as schoolbag acceptable limit which is recommended for schoolbag weight is 10-15% of child’s body weight [1]. Growth of spinal structure takes a longer period of time than the other tissues and any incongruities in rate of tissue development can pose a threat to the posture of children’s body, external force such as load carrying may influence the growth, development and maintenance of the alignment of body [8]. Intensity of schoolbag stress impact is comparatively higher as girl child because of the body structural differences [9]. If CG schoolbag is not properly aligned there may be a spinal deformation and positioning error occurs in body [11]. Result shows that children’s schoolbag weight exceeds the acceptable limit of 10 to 15% of body weight.
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