What has been your worst setback--whether in time off or just lack of improvement? I would be tempted to say that mine was having a BMI of 35. But that was before I ever managed to run a continuous mile.

What has been your worst setback--whether in time off or just lack of improvement? I would be tempted to say that mine was having a BMI of 35. But that was before I ever managed to run a continuous mile.

I started running with a BMI of 37.5 10 months later a 3:09 marathon 15 months later BMI 29.0 and a 2:56 3 years later a BMI of 25.0 and 2:45 To answer - Groin and hip flexors cost me 6 months (Mostly - Ran a few miles in there) - Time off was worthless - I added weight training and stretching and it did the trip right away - Didn't need 6 months off - dang it!

Groin and hip felxors - I started with 3 exercise machines at the YMCA - One that is designed specifically for abducting and flexing the hips and one that I do knee raises with weights - Almost immediately the issue went away - Now I just makes sure I do these 2x a week. I am not sure what runners knee is? Is it onside or outside. If on the outside - I have on and off again issues with IT band - But thats a fairly easy one for me to fix - Get the foam roller out and add 2-3 stretches after each run. I used to suffer pretty bad with Achiilies tandon flares ups, but over time your achillies tendon keeps getting stonger and stronger and now - never have isues with it.