I’m 53 and love mountain biking. I had fallen out of shape over about 18 months due to an injury, surgeries, and physical therapy. Last spring I was looking for a training regimen designed specifically for mountain bikers that I could do myself and found this. The first part of the 12 week program is to basically set tough but achievable goals. My goals were to get back to my pre-injury times at some of my favorite courses. It was tough. The intervals especially were brutal. But I reached my goals 10-11 weeks in to the 12 week program. I’m getting ready to start the 12 week program again, then plan to take a one week rest and jump in to the 16 week program. My new goal is to set new (clearly defined) PRs in two mountain bike races I plan on doing again. Thank you Matt!!