Quotes from above re: people's experience with Morris Plan:
-. Morris is better but back-to-back intensive days literally killed me several times. I was not able to recover and ended up overtrained.
-But, I ended up with an illness shortly after - don't know if it was too much intensity or just some bug that would have got me anyway. I had to back off the blocks of intervals
-The best part of the Morris plan (IMHO) are the 2-3 day blocks. These really work, just don't short yourself on the rest days and pay attention to any minor tweaks you may pick up.
Now see this quote from Dave in an Interview I did with him here:
http://www.thebikinghub.com/mtb/ashwin-interviews-dave-morris/
Ashwin: Is there a rough guideline for how many hours a week a vet sport mountain bike racer needs to put into training compared to say an expert mountain bike racer?
Dave: Not really. It depends on the individual, their race demands, how much time they have to train, and how much time they have to recover. Generally though, I find that most of the serious mountain bikers spend way too much time on the bike and too little time recovering.
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You can't do the Morris plan if you go into it with the traditional perception that more saddle time is better. Many people get into the hard intervals but feel that because the time spent on them is so short compared to how they used to ride that they tack on some more trail rides or road rides in order to get their hours up.
Also everyone's recovery capability is unique. Just because the book presents a 3week on 1 week off macro schedule does not mean that you might be better off with a 2week on 5day off macro schedule..
Or 3days on 2 off, 2on, 2off in the micro cycle might not work for you. You might be better with 2 days on 2 off..etc...
In addition, it takes a little while to adapt to the hard intervals. My first week into them is pitiful and must be entered into lightly and build up slowly over time.
Someone mentioned that they hate intervals. Don't do them then. If you want to be the fastest you can be than reconsider. Otherwise replace interval with 'ride hard'. When I first started with block training my plan was
Day 1: Ride hard 1.5hr
Day 2: Ride hard 1hr
Day 3: Ride hard .5hr
Day 4: Rest
Day 5: Rest
Day 6: Ride Hard 1hr
Day 7: Ride Hard 3/4hr
Day 8: Rest
or something like that....
Just some thoughts about Morris Plan.
Friel, Morris, or hybrid...doesn't matter. What matters is having a plan you believe in and being consistent over the long term.