Begin with light cardiovascular training. Walking, riding a stationary bicycle, and swimming are great examples.

从轻微的心血管锻炼开始，走路，骑固定自行车，和游泳都是不错的例子。

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Margie Stiller lost 30 pounds riding a stationary bicycle 30 minutes a day for three months while watching her favorite soap opera.

玛姬·史黛拉在三个月内每天边看她最爱的连续剧边踩三十分钟的室内脚踏车而瘦了三十磅。

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Stevens stayed away from her bicycle for a week and then slowly transitioned from the stationary bike to outdoor riding.

WSJ: Cycling's Occupational Hazard