Preventing Back Pain from Backpacks
Experts suggest steps for avoiding the back pain that has affected 64 percent of children.
Inside Science Buzzwords:
- Ergonomics - The science of understanding the interaction of humans and the things that they use.
- Center of Gravity - The point on an object that acts as if all the weight of the object is concentrated there, so that gravity from the Earth would pull the object straight down at that point.
- Weight distribution - A description of how the weight of an object is spread throughout the space containing it.
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