Originally Posted by
colnago62
To go from zero hours a week to 15 hours a week in a few months is not very realistic. That is a lot of time in the saddle if we are talking about someone no prior base endurance. The best thing is to go to the doctor and make sure you are healthy enough to stress the body and then start a program and really listen to what your body is telling you.
It's totally realistic, and easily acomplished. The biggest limiting factor is commitment and time, and keeping an eye on your ramp rates.
If you can do one hour a week (broke up into three 20 minute workouts), and add
just 20% per week additional workout time per week, you are there in just ten weeks.