something different in the gym

Today I tried the elliptical.  No dice.  My knees were killing me after 2 minutes and I could not continue.  So I know that is not for me.  Then I moved to the bike.  I did 2.3 miles in 15 minutes.  I have to take it easy on that one...it's sore on the butt.  So I will alternate between the bike and the treadmill for now.  One day bike, the next treadmill.  I also have to work on adding some strength training.  Small steps at a time.