I feel that doing sit-ups is the fastest way, but I must stick to it and there will be a rebound. So you need to cooperate with other methods at the same time. It is recommended to use fitness equipment, such as home exercise bike, elliptical machine, spinning bike, etc.

Address of Experience Store: Opposite to Badminton Hall of Guo Xin Gymnasium, Yinchuan East Road, Laoshan District, Qingdao.