At first, look at the picture. A sandal is placed sideways. Do you notice something strange? Examine the shape of the sole. It's not flat but round. This shape seems to produce instability on purpose in order to strengthen the muscles and joints. Just stand simply, and you can do exercises of various joints. I decided to use them. The manufacturer says that strictly speaking, their shoes aren't shoes but exercise equipment. Please wait for the report.
- (Vocabulary)
- sideways 横向きに
- deliberately わざと〔行為者が悪意を持っているニュアンスがある。〕
- by design / on purpose わざと
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