In my effort to get some good non-running cardio workouts in, I have discovered the challenge and intensity of 500 meters on the Concept 2 rowing machine for time. I first learned of this while visiting Clarence Bass' website.
I might be getting hooked.
If you are challenged for time to get your cardio in, and you have gym access to a Concept 2 rowing machine, give the 500 meter timed trial a whirl. I guarantee you in 3 minutes or less that you will have all the cardio you need for the day.
There is a website where individuals post their times for various distances. In my age group, I would be about 225th on the listings out of over 400 who have posted. My best time is 1:42. There is some stud out of San Diego who has posted a 1:19 time.
Here is a link for anyone interested:
http://www.concept2.com/sranking03/g...asp?gotopage=1
If you have access to a Concept 2 rowing machine, go spank yourself this weekend.