I use to think I had titanium knees because they never bother me, even when I was training for the next marathon. I am not sure why, but I am starting to feel my knees more. It might be because I am running less or maybe it is just getting older. I looked at my training log and can see that I am biking more than any year in my life, but my running is somewhat less than any of the past few years.

I have experiemented with ways to combine running and cycling into one chart so I can see how much training I am doing. One method uses calories burned (as reported by my Polar heart rate monitor or estimated using formulas). This chart looks like this.  This shows my level of exercise is similar to last year and ahead of the prior few years.  Click each chart to view enlarged.

The other method I have used is to try to translate everything to equivalent running miles by using a formula I have developed. The formula is just an rough approximation.

Here are the charts for running and cycling only.  They show that I am doing a lot more biking and less running than past years.  Maybe that is why I have tired knees?

Categories: Training Log
No Comments »