Garmin Training Load and Polar Cardio Load are designed to help runners prevent over training and take in to account their sleep recovery, but should they really be guiding you? How important is training status on your watch?
This topic has come up more and more in the last few years as our watches continue to add new layers of technology tracking our every step, how often we flop around during the night and even reminding us to fuel during our long runs.
It’s important to understand exactly what is being calculated and always remember that YOUR BODY IS NOT A MACHINE. No runner has a straight line upward of progress, which is what a calculation would expect.
How do you calculate training load?
Training load = intensity x duration
Training load is usually looking at the impact of a single workout and with all the technology in GPS watches it now takes in to account HR , VO2 Max, sleep and the type of workout to determine the load, which then goes in to calculating the overall training status your watch displays.
Garmin: Training status uses your average from the past 7 days
Polar: Cardio Load Status uses your average daily load from the past 28 days
Let’s breakdown the Garmin Training Statuses. There are technically 7 for Garmin and 4 for Polar, but a few I rarely to never hear anyone seeing so we are focusing on the big one’s that bring up questions.
- Peaking: you are in ideal race condition. Your recently reduced training load is allowing your body to recover and fully compensate for earlier training. You should plan ahead, since this peak state can only be maintained for a short time.
- Productive: your current training load is moving your fitness level and performance in the right direction. You should plan recovery periods into your training to maintain your fitness level.
- Maintaining: your current training load is enough to maintain your fitness level. To see improvement, try adding more variety to your workouts or increasing your training volume.
- Unproductive: your training load is at a good level, but your fitness is decreasing. Your body may be struggling to recover, so you should pay attention to your overall health including stress, nutrition, and rest.
- Overreaching: your training load is very high and counterproductive. Your body needs a rest. You should give yourself time to recover by adding lighter training to your schedule.
Now we know how they define these status, but how much should you pay attention to them?
Why training status can be useful?
If we only continue to increase intensity without ever taking a cut back week, then we may be improving fitness but fatigue also ramps up. This is part of what training load is trying to help you prevent.
Meanwhile, increasing your total activity or intensity beyond the 10% rule is often correlated with injury, which could also be due to fatigue and therefore your watch is attempting to warn you of this.
- Unproductive – shows up as your aerobic fitness improves and your HR starts to go down for the same pace or duration of run. That’s not unproductive at all.
- Unproductive – shows up the day after a marathon because you are sitting with your legs up a wall trying to recover. Yup, also not unproductive.
- Overreaching – shows up on Garmin if you went on vacation for a week and thus have no workouts, the massive jump when you return looks like overreaching.
- Overreaching – shows up with you are in fact increasing your total workload more than roughly 10%. At some points that’s absolutely ok based on fitness, but other times a reminder not to jump too quick and end up injured.
Which Garmin watches have training load?
Nearly all of their watches now offer training load:
- Forerunner 245, 645, 745, 945
- All of the Fenix Series
Vivoactive and Venu watches track more lifestyle and therefore include stress monitors, but not training status.
Suunto watches give you a number of scores from sleep quality to fitness level (VO2 Max), but don’t give the same training load daily updates.
Coros watches also provide training status, but not much information on their site about how many days are needed for it to calculate.
Is Garmin Training Status accurate?
Your body is not a machine. It’s far more than the numbers from a workout.
It’s daily life stress, it’s getting sick, it’s having a week of vacation and then coming back to training feeling energized and strong.
The training status is something that can give you a second to pause and check in with yourself: am I doing too much? Am I feeling fatigued? Am I actually doing less work or is my HR dropping because I’m getting fitter?
But is it the be all end all of where you are in training, no.
Why is my VO2 Max dropping?
VO2 Max can drop for a number of reasons.
- Your watch sees your dropping HR as a sign of overtraining (the opposite of what happens with LHR)
- You are in a recovery period after a race
- Your resting HR is higher because you haven’t been sleeping well or are stressed out
- You’ve switched up your training to add in more weight lifting and fewer miles (fitness is increasing, but may not VO2 max)
- VO2 Max naturally declines with age
More importantly does VO2Max matter for runners?
Stop focusing on this number and focus on how your workouts are actually going.
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