« Intervals, Part 1 | Main | Intervals, Part 3 »



Feed You can follow this conversation by subscribing to the comment feed for this post.


Hello Joe! I've seen lots of recent posts regarding specificity of training. You do still believe in periodization, correct? I just finished my first peak of the year, and have another time trial in November. As a result, I'm back to my Base 3 doing the longer duration rides with less specificity.

Joe Friel

Adam--Yes, I certainly do.

Patzer Triathlete

Great series, I look forward to the rest.


I wish this blog were around 20 years ago---I had a coach that used to believe that lacrosse conditioning was best done by full-out puke sprints one day followed by full-out distance puke runs the next. It really and truly made me hate running. I knew that it wasn't working (or rather, worked better with a day or two off between interval sets) but never really understood why. And I still have issues with running to this day--if I'm not going fast enough to puke, I feel like I'm failing. And at 41, that's most of the time...

Wonderful post.

Jeff Yielding

Good stuff as always Joe, thanks for posting your thoughts.

“If you keep cutting your volume while continuing to train with high intensity, at some point performance will decline”

How long do you think before a decline will occur? Are there specifics before an athlete’s beings high intensity to lengthen the time to decline? Thoughts are from a cyclocross racers perceptive.


Joe Friel

Jeff Y--The answer to that question is very much related to who we are talking about, what brought them to this point in time, and what type of training they will be doing. There is no answer that fits everyone. I discovered for myself a long time ago that when training for 2h races I needed to do at least 9 hrs per week given the type of workouts I do. That isn't necessarily going to be the same for someone else.

Jeff Yielding

Thanks for the response and note in part 3

I was thinking a cyclocross racer who builds a solid base say 80-90 CTL, peaks their THLD then moves into intervals that prepares them for the demands of CX races.

The demands of cross require more rest and may cut into longer endurance rides; as a result training load comes down. At some point I imagine intervals alone would not carry that rider for more than x months before they see a down turn in abilities? Can CTL be an indicator or a gauge for when that might occur? Can you say when you drop your CTL by 20 points coupled with interval training you have bottomed out and need to build your base back up.

Joe Friel

Jeff Y--yes, CTL may help with making such decisions.


Son of a gun, this is so heflupl!

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Comments are moderated, and will not appear until the author has approved them.

Your Information

(Name is required. Email address will not be displayed with the comment.)

Joe Friel's Sponsors

Blue Competition Cycles
"Specialized Bikes is my newest sponsor. I’ve been impressed with their bikes for a long time so I tried one. Had to have it. What a great ride!"

D2 Shoes
"I’ve been using custom-made D2 Shoes for years. Currently on my fourth pair. And, yes, they have midsole cleats as described in my blog."

ADS Sports Eyewear \
"ADS Sports Eyewear makes all of my glasses for casualwear, reading, cycling, golf and more. Hundreds of models from all the major manufacturers."


Subscribe via Email

Enter your email address:

Delivered by FeedBurner