送交者: HunHunSheng 于 2005-11-28, 10:29:09:
回答: 骑车不喘跑步喘是因为骑车很快达到强度而人还在无氧呼吸阶段。 由 Enlighten 于 2005-11-28, 10:24:11:
Either for cycling or running, I do them for a
duration of 20-30 minutes so that both are
aerobic instead of anerbic (sp?) and resp rate and
heart rate I am talking about are average for
the whole duration inspead of any particular moments.