By Winni Zhou and Huizhong Wu SHANGHAI/BEIJING (Reuters) – “Stand in front of a chair. Chest up, core tight and square your pelvis,” said Heidi Liu, a pilates instructor at a studio in Shanghai, as
By Winni Zhou and Huizhong Wu SHANGHAI/BEIJING (Reuters) – “Stand in front of a chair. Chest up, core tight and square your pelvis,” said Heidi Liu, a pilates instructor at a studio in Shanghai, as
