可以
只要心跳达到target zone就可以了
问题是其他的也挺boring的, 一般cardio没有不boring的
而且跑步效率比较高

agree on bluekite
actually it is better to alternate between all kinds of exercise so your body wont' get a chance to get too used to one kind of movement and that exercise becomes less effecient in burning fat.
swimming, for one, can be a great alternative, and it also involves whole-body workout instead of lowerbody only workout like jogging does.

有个走楼梯的机器， 比跑步难, 玩玩看