Try to answer your questions

1. 两块板悬在空中的两手有把柄的那啥 is elliptical, which has minimal impact on your knees, which is better than running; power walking has small impact too, but make sure you walk on incline /uphills instead of on flat ground, this will help your butt and leg muscles to tighten up and lift.

2. Target heart rate is for cardiovascular exercise, which is necessary for your heart health (this is also called zone 4, in which you burn sugar); but sounds like you'd like to burn some fat, then you need to hit zone 3 (heart rate lower than zone 4), for a longer period of time, say 30 mins or so.

You can also achieve this goal by doing multi-joint movement, for example, squat while weight lifting, etc. Alternate different moves makes the work out sessions more interesting and helps different body parts to exercise.

Hope this helps!

所有跟帖： 

• yes, very helpful. Thanks a lot. -padme- ♀ (0 bytes) () 01/07/2010 postreply 09:15:05

• Don't forget to strech before and after -Crystaldowns- ♀ (105 bytes) () 01/07/2010 postreply 09:15:23

• I see. I will. :)) -padme- ♀ (0 bytes) () 01/07/2010 postreply 09:18:16