One race is not a trend, but I trained for the Bolder Boulder 10k by running once a week (intervals for speed work) and doing P90X2 and Insanity The Asylum vol 1. Both of those workouts are designed to improve athletic performance more than simply improving overall fitness.
I'm a more of a long distance runner (marathons and ultras), so a 10k feels like a short distance . Having said that, I have never considered myself "fast".
But, doing those strength oriented workouts, I finished #16 in my age group in a big race ( over 50,000 overall; 300 in my age group). I feel like those two workouts helped me run faster, I did not lose any fitness, running or otherwise, and I love that toned look. If you would like to look into that, click on my blog and go back to some of my blog entries in the April and May timeframe. I blogged about that training.
My blog address is listed in my signature below.
I continue to do more strength training. My running is down to less than 10-15 miles per week. When running was all I did, my weekly mileage would be 45-50 miles per week. But last Sunday I went on a 14 mile run, felt great and finished in 1 hour 57 minutes.
So I do not feel like my strength training has reduced my running performance. I love the cross training. The cross training has been good for my physical and mental health.
Endurance = momentum forward.
WL = CB/T (Weight Loss = Consistent Behavior over Time)
| current weight: 191.8