Hellow guys, Welcome to my website, and you are watching How to do a Warmup- Mobility Stacks using Sh Taps, Knee Taps, Birddog, and “A” Frames. and this vIdeo is uploaded by Spencer Aiken, CSCS, PE Innovator at 2022-01-27T08:58:11-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.