First time I've done that and it bloomin well hurt.
Was just doing my usual Saturday morning run, thinking about whether I'd do 5k or a bit further. Going ok, good pace, feeling fine then about 8 mins in I was suddenly flying through the air. Tried to recover my step but no - SPLAT! I'm on the floor wondering what happened.
Luckily no-one saw me as I sat on the ground in a state of shock. Anyway after a minute or so I considered my options - limp off home or carry on. So I got up, decided not to look at my throbbing knees and carried on. Was pleased is got my sunglasses on so no-one could see my tears!
I managed 5k in 37 mins 29 secs. Not my best time but not bad considering.
Looked at my knees when is finished - both are quite badly grazed and a bit swollen but ill live!
Next run scheduled for Tuesday so hopefully my knees will feel a bit better by then.