Burninglesscalorieswhilewalkingseemslikeabadidea,butmak...
问题详情：Burninglesscalorieswhilewalkingseemslikeabadidea,butmakingthewalkeasiermayactuallykeeppeopleontheirfeetlonger,andthatscientistssay,hassubstantialhealthbenefits.Analyzingthehumanwalk,biomedical...