I've been working on strength/cardio for 4 months now and I'm getting pretty fit. Due to a bad hand injury I was avoiding running and instead used the stationary bike and eliptical for cardio. The injury is now passing so I gave running ago.
My first run on Friday I did 5km in 39 minutes, then Sunday I did 5km in 32 mins - after both runs my knees hurt (in fairly specific places). Today (thursday) I ran 1.6km in 9 minutes and my right knee started to hurt again.
Its not a severe pain and does pass when resting - my question is: has this happened because I've done too much too soon and if so would resting till 'better' then slowly increasing time/distance prevent it happening?