PeerJ Author & Reviewer
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Daijiro Abe
PeerJ Author & Reviewer
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Associate Professor
Kyushu Sangyo University
April 2009
Center for Health and Sports Science
"Bipedalism", substantially related to the human locomotion, is my current research interest. Bipedal locomotion, particularly in human gait, involves several critical causes of disadvantage, such as back pain, knee pain, dizziness when standing up, mental depression, stiff shoulders, and hemorrhoids. It looks far from "stable" and "safe", because the head is located on the top of the body and because the vital spot faces against the enemies. I have questioned why human beings have chosen such an unfavorable style during locomotion in our history.