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AR15.COM
2/27/2017 9:03:06 PM EDT
Been getting tired of treadmill workouts, and need something I can do in my house at 4am before the kids wake up.  Everything I've read on them say they give a brutal core/total workout, given you exercise at the correct zone.

Anyone have/used one?  Thoughts?


Thanks
3/2/2017 8:48:22 PM EDT
[#1]
Anyone?