Wow that's fast. But it sounds dangerous. The last time I attempted to run at full speed after not running for years, I struggled to keep up and lost my balanc

Wow that's fast. But it sounds dangerous. The last time I attempted to run at full speed after not running for years, I struggled to keep up and lost my balance. I started tilting forward slowly and eventually fell then slide on the ground for a while, resulting in multiple scratches on my face, front pelvis, etc.