it's really nutty to do 200, besides,

来源: -worldance- 2017-12-15 09:22:53 [] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (187 bytes)

watch your lower back!

Intervals, don't do too much repititions. 20 would be reasonable, then change postions.  You always can come back to situps again.

所有跟帖: 

谢谢!非常reasonable! -夏了了- 给 夏了了 发送悄悄话 (0 bytes) () 12/15/2017 postreply 09:53:24

你太好了, -夏了了- 给 夏了了 发送悄悄话 (20 bytes) () 12/15/2017 postreply 09:55:00

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