Dave The Iron Ex- Spartan wrote (see)
Isn't there a BDSM website where you can get a bar code for your submissive ? People might thing you are kinky
And you know this how, exactly................?
I have a lamintated one, with a hole punched into it, which I attach to my (loose) watch strap with a carabiner.
Possibly the Insanity is fatiguing your muscles, so they are too tired to cope with the bouncing when you run. You could try some support and see if that helps.
Visit the official Runner's World page
Follow Runner's World on Twitter
Other Natmag-Rodale Sites
Run For Charity
About Runner's World