Cross Training - I'd Rather Have Somebody Run Two More Hours Than Run?

Coop: It's important to separate that kind of cross training from what we've been talking a lot about at c t s the last six months. Andy: If you're using cross training in order to elicit a specific adaptive response, and this is kind of your point to your athletes that are doing intervals on the bike. Coop: In order to improve the cardio vas a capabilities of a runner or a cross country skier, you have to train at such a higher intensity, a higher rate of perceived exertion.