除非楼主年轻或早已是个练家子，有很好的肌肉保护关节，否则不建议爬楼梯，特别是快速下楼。。。

Over a four-year period, researchers at the University of California, San Francisco tracked the activity levels of 200 healthy men and women between the ages of 45 and 60, none of whom had any history of knee pain. At the end of the study period, experts used MRI scans to measure the swelling in participants' knees. The results were clear: Compared to their moderately active counterparts, adults with the highest levels of physical activity were more likely to have knee-joint swelling, a classic sign of cartilage degeneration. 

爬楼梯属于较强的运动。

所有跟帖： 

• 同意 雪花 快走或慢跑更好 -Redcheetah- ♂ (0 bytes) () 05/31/2016 postreply 12:22:48

• 矛盾啊，我就是想中午饭后运动。 -雪花无声- ♀ (353 bytes) () 05/31/2016 postreply 12:36:52

• the best 中午饭后运动 = just walking -:) -Redcheetah- ♂ (0 bytes) () 05/31/2016 postreply 21:17:26

• no 快速下楼，downhill running -jiangwen999- ♂ (0 bytes) () 05/31/2016 postreply 12:37:25

• 慢下，上下脚步都尽量不出声，好点吧？ -雪花无声- ♀ (0 bytes) () 05/31/2016 postreply 12:43:26

• 不动会有其他问题，什么运动都只能适度。 -雪花无声- ♀ (164 bytes) () 05/31/2016 postreply 12:48:15

• TT好像不会有人说不动是好事吧？：）。只是说爬楼梯对某些人不好而已 -periscope- ♂ (62 bytes) () 05/31/2016 postreply 13:00:47