Hi Gloria,
It does improve my running! I just "discovered" Cathe about 9 months ago. Prior to that, I was alternating running with advanced Tae Bo and The Firm.
Pre-Cathe, workout program looked something like this:
Monday - OFF
Tuesday - Run 6 miles, do circuits of pushups, pullups, and core
Wednesday - 60 minutes of Tae Bo
Thursday - Run 6 miles, do circuits of pushups, pullups, and core
Friday - 60 minutes of Tae Bo
Saturday - Run 6 miles, do weight workout for about 30 minutes
Sunday - 60 minutes of The Firm (Supercardio)
(I was running about 9 minute miles)
I am not running as much anymore (about once or twice a week). Here is my current routine (I have been a bit off the wagon for about 2 months, but this is what I normally and am getting back on track with):
Monday - OFF
Tuesday - Cathe Kickboxing workout (either Cardio Kicks or Kick, Punch, Crunch - OR Run 6 miles
Wednesday - Cathe Muscle Endurance
Thursday - 60 minutes of Tae Bo
Friday - Cathe Bootcamp
Saturday - Cathe Kickboxing workout (either Cardio Kicks or Kick, Punch, Crunch) - OR - Cathe or Mindy M. step workout
Sunday - Run about 6 miles
The things is...my running (and all my other OLD workouts) have become so much easier since I discovered Cathe. Honestly, when I do Tae Bo now, I barely break a sweat until I am about 40 minutes into it. I can remember when I couldn't get through the video without feeling like I was going to die! And same with running...true, I am running less, but it is so effortless now. I am running about 8 minute miles and barely feel worked at all until I have run about 3 miles. It's crazy! I really think this is because of Cathe's Boot camp...it was very challenging at first and I believe it has kicked my cardio endurance up a notch. It's the circuits...they are great! But it makes everything else feel too easy.
Well, good luck and let me know when you try it! I will be interested to know how it works for you.
Dianna