In the Build period focus on key workouts, not weekly volume numbers. Quality, not quantity, determines performance now.
I posted the above comment to my Twitter account yesterday and got a response from a follower: “What is quality training?” Good question. That’s one which gets at the heart of periodization. I like Twitter but answering complex questions with 140 characters is not easy. This one takes a few more. Let’s start by putting things in perspective.
Training quantity is simple. It’s just how many miles, kilometers, hours, meters, yards, TSS or kilojoules done in a week. Your volume. All you need is an adding machine. This is the focus of the Base period – accumulating general fitness by doing lots of non-specific training. “Non-specific” means the workouts aren’t necessarily like the events for which you are training. For example, you may be lifting weights. At no pint in your races this summer will you have to stop and pound out a few squats. Weight lifting is non-specific. Drills to improve technique are non-specific since you don’t do them during a race. In the Base period you may be training on hills even though the race courses are flat. Another non-specific.
Here’s one that is a subtle variation on this theme. Training at an intensity that is not race goal pace or power is non-specific. That means going well above or below race pace or power. Training intensity is where athletes tend to get confused about periodization.
Periodization of intensity does not mean going really slow in the Base period and then going faster and faster each week in the Build period. It doesn’t work that way.
While the purpose of the Base period was general fitness, the purpose of the Build period is specific fitness. This involves individual workouts that simulate the intensity and the duration of your next A-priority race. You can stop being concerned with volume at this point. If you did a good job of raising it during the Base period then you can maintain it quite easily now. In fact, in the Build period it’s not unusual for volume to be reduced a bit as the focus shifts to unique training sessions. If you are an experienced athlete whose goal is to perform at a high level relative to your ability then continuing to increase volume will not give you the desired results. Quality training will.
Once again: Quantity is not the key to performance; quality is.
So that brings us back to where we started: What is quality training? You should have a pretty good idea of how to answer this now. Quality training involves doing workouts that simulate the intensity and the duration of your goal race (and other unique variables such as race terrain). Some of the Build period workouts will focus on the specific intensity. Others will focus on the specific duration. The highest quality workouts will include both specific intensity and specific duration.
Workouts for specific intensity only or specific duration only are simple to do. It’s the third category which is the most challenging. Combining them makes for a very difficult, but very affective workout. How you do that depends on the event for which you are training. For example, road cyclists training for a road race will typically do a fast group ride of about race duration. An Ironman triathlete may do a Big Day of training involving a long swim, long bike and long run with each done at race intensity (I have IM triathletes rest for 90 minutes between each leg of this workout). A marathon runner may do a 20-miler with the last 8 miles at race pace. Another option with this specificity goal in mind is to do a low-priority race in the Build period. The details of this race (distance, terrain, weather, pacing, etc) all need to be considered relative to your limiters and your A-priority race.
So that’s quality. I hope this sinks in as it’s the single most misunderstood area of periodization. If you understand and apply it in the last 12 weeks before your race then the chances of having a successful race are greatly improved.

nice article, how would you rate a program 16 weeks out from a IM event, with at moment 4 rides 2X(75km @ IF of around.65 focus on spin and technique)1 ride(100KM@IF of around .80-.85)
1ride( 130km @IF low .80 ) with 20 min run off bike, not possible to do much more riding with time issues eg work and university.
im riding with a power meter for IF numbers almost tempted to up grade to a joule 2.0 as i can see IF in real time, how ever i have a good feel through perceived effort heart rate and av. power
Posted by: damian knightsbridge | 03/20/2011 at 01:38 AM
Thanks for another helpful post.
I have a question about 'specificity' when your A event is not a race, but an endurance event? I have a 3 day 320 mile event with 7600m of climbing, where my goal is to finish.
Should my focus be on simulating 'back to back' long rides, the distances and/or the climbing involved?
Thanks
Posted by: Damon L | 03/20/2011 at 06:09 AM
Interesting post, and it highlights the contradiction that we older athletes face (I'm 62). On one hand, intensity is the key for our athletic success, since many of us have decades of base endurance built up. Conversely, we can't do the hard workouts very often, so it's hard to do much intensity. I'm finding that a hard session mid-week and another on the weekend is about all I can do, with all other days being recovery or zones 2-3 stuff. If running is part of the program, than makes it even harder ...I haven't been able to do an "easy" run in years :). My approach has been to do more brick workouts that combine a hard cycling workout with a tempo run.
Posted by: Bill Cullins | 03/20/2011 at 08:28 AM
Damon L - I'm tempted to answer your question with a single word - yes. But I'll elaborate. You need to be doing workouts that prepare you for the stresses of the 'event' (whether it's a race or not). There are obvious limitations to duration of workouts for ultra events. If training for RAAM, for ex, you wouldn't do intervals across the country for a week. But some how you need to simulate the stresses. There is no formula or fits-everyone answer. That's what makes training interesting. Good luck!
Posted by: Joe Friel | 03/21/2011 at 07:36 AM
damian knightsbridge - I'd have to know a heck of a lot more about you to answer that. Even when I coach someone it takes weeks-months to come up with an appropriate plan as I get to know their needs. Good luck!
Posted by: Joe Friel | 03/21/2011 at 07:38 AM
Thanks, Joe! This post addresses the exact issue consuming me for the last week. I'm a 37-year old new racer with only 2 years of light recreational riding under my belt before starting a training program in October. I've struggled for the last few weeks of my Build phase balancing volume and intensity. I use the PMC in TrainingPeaks (with a power meter) to track progress. As my volume has dropped and intensity increased, my total weekly TSS (and overall CTL) is dropping but my body is telling me I'm overreaching. Besides relying on how my body feels (which I'm not good at yet) are there other indicators besides TSS, ATL and CTL that I can rely upon to measure my workload and fatigue at this point in the training stage? Is it normal for the PMC to become less of a workload indicator as you build toward your peak?
Posted by: Justin H | 03/21/2011 at 12:51 PM
Justin H - As mentioned above, in the Build period it's quite possible that your weekly volume will come down. Weekly TSS is just another way of expressing volume (best way, I believe). So don't sweat it dropping. Just make sure your easy days are, indeed, very easy. In Build there is at least one easy (IF .7). The harder the hard ones (IF >.8), the easier the easy ones (IF <.6). Make sense?
Posted by: Joe Friel | 03/21/2011 at 01:33 PM
Joe
In "Your Best Triathlon" you mention doing a Big Day Workout for Ironman training.
Can these two big day workouts be done as part of the Half Ironman program as well, at 1/2 IM intensity, and just halve the times?
eg. 30min swim, 2.5-3hr bike and 1hr run?
Posted by: Tim | 03/21/2011 at 07:33 PM
Thank you for that interestings precisions.
Do you recommend to train at specific intensity and duration of the personnal best or you recommend to train at the desire performance ?
Thank you,
Martin
Posted by: Martin Cléroult | 03/21/2011 at 07:35 PM
Great Post
Just a question. In half ironman training, particularly in your Best Triathlon book, do the total session times still continue to gradually increase in Build 1&2 or does time gradually decrease as the intensity increases?
Posted by: Brad | 03/21/2011 at 10:37 PM
Brad--They decrease slightly after Base 3.
Posted by: Joe Friel | 03/22/2011 at 06:11 AM
Martin Cléroult--At goal pace/power/speed/HR/effort or slightly above.
Posted by: Joe Friel | 03/22/2011 at 06:12 AM
Tim--Yes, that can be done.
Posted by: Joe Friel | 03/22/2011 at 06:13 AM
Joe-
Great post. I think it gets to the heart of peridization. I was wondering if there has ever been a study looking at overall health imparts of periodization. I certainly feel healthier when on a periodization plan.
dabe
Posted by: david julien | 03/22/2011 at 07:57 PM
david julien - Not that I know of.
Posted by: Joe Friel | 03/23/2011 at 06:46 AM
Joe,
I am 52 y.o and have a tendency to "break" every season with a hamstring or calf or something. I love your new book on "Your Best Triathlon." I will be doing Florida IM in the fall. I have previously done a 2 week/ 1 week rotation. I am going to use a "10- day" week during the base phase which will always give me a easier day before and after a hard Interval or Tempo day on the bike or Run.
During my BUILD weeks can I also do well this "10-day" week? Do I need the stress of closer work-outs? Should I do "11 weeks of ten days" as my build if I can keep it together with motivation?
Posted by: Dick | 03/23/2011 at 10:12 AM
Dick - In Build the key is to always go into hard workouts rested enough that the quality is high (this assumes you're not training for a stage race which changes the rest-stress ratio a bit). So whatever gets you ready for a quality session is what you want to do.
Posted by: Joe Friel | 03/23/2011 at 02:09 PM
10 day weeks it is. I have a number of test base numbers now, (VO2 testing, hard half marathon, and power meter FTP) that I will revaluate just before the BUILD period in August and then let you know how Florida goes. If I am lucky I will see you in Kona. ( By "Lucky" I mean winning the Lottery on April 15th!!)
Dick
Posted by: Dick Sutherland | 03/23/2011 at 04:29 PM
Hi Joe,
my target event is a 220 km und 3500 hm road ride/race.
My yearly Volume is 400 hours of training, so the build period is 10 hours a week.
Typically such a road ride/race last 7-9 hours.
My problem is, if I (nearly) train specific for that duration, 5+ hours of my weekly volume are gone for one training day.
I am a bit lost, how to handle that situation.
Posted by: Cattiy | 03/24/2011 at 09:35 AM
Cattiy - The tables from my Cyclist's Training Bible was not intended for events lasting that long. You'll have to do some calculating.
Posted by: Joe Friel | 03/25/2011 at 07:22 AM
Hi Joe-
I think that this is the first time the idea of periodization finally made sense to me, so I am am greatly appreciative of your article. I've been worrying that the Base period has only trained me to be good at running slower than I would like. It seems that I can stop worrying about slogging along at a 9 min/mile Zone 2 Base pace (based on HR) once I get to the Build phase and instead focus on my 7:30 min/mile Zone 4a (based on HR) goal pace, right?
Posted by: Matt D | 04/01/2011 at 11:13 AM
I have been training ~20h+ per week (~3 swim, ~15 bike, ~4 run) for an IM (age 43). I often hear I am doing too much but how would I know? I feel great doing it. As far as I am concerned, the dangers of quantity are: a) injuries (I am OK), b) over-training (maybe, but I feel great), c) losing interest (also OK). The only thing I notice sometimes is that my run times are not 7min/mile anymore if running a lot but I don't worry about it as I know when I run less I will be faster again. What would be the argument to train less?
Posted by: Mike Schuster | 04/03/2011 at 11:20 AM
Mike Schuster - You're doing great. Keep it up!
Posted by: Joe Friel | 04/03/2011 at 12:29 PM