The Norwegian method, without the Olympic hours

Notes alongside the text say what each point rests on:

Two things go by this name

But the Norwegian system is wider than one workout. Olympiatoppen, the Norwegian Olympic Sports Center, works across all endurance sports with one shared intensity scale and a common training diary [3]. That wider pattern, how a week is organised and where the hard work sits, is what the research describes. It is also the part that carries over to people who aren't training twice a day.

The version most amateurs mean: singles

Nearly all of it is easy

Easy means zone 1, and zone 1 is low

The coaches take it seriously, though they don't agree on where in the zone to sit. One keeps easy sessions at the lower end of the zone so that the athlete arrives at interval days fresh. Another picks gentle terrain so that heart rate doesn't creep up [1]. For long-distance running the papers report easy running mostly in the upper part of zone 1, sometimes touching zone 2, to keep running technique, with sessions kept short because of the impact. For skiing and biathlon it is mostly the lower part [1, 2]. Long continuous sessions start at the lower end of the zone and rise gradually as they go [2].

What doesn't carry over

Four things, and they are the ones the popular version leads with.

• The hours. Everything above stands on a volume that an adult with a job can't reach. Three to eight hours a week is roughly 150 to 400 hours a year. The easy hours are what make the hard ones affordable, so with fewer of them it is the proportions that carry over, not the totals.

• Two sessions in a day. It exists to raise the total amount of threshold work once the easy hours are already high. At five hours a week the right answer to "how do I fit in more hard work" is usually that you don't.

• The lactate meter. Elite coaches use it alongside heart rate, GPS and long conversations with the athlete. It is useful, and it isn't required. For most people, how the work felt, written down honestly, carries most of the same information.

• Building to a peak. Preparing to peak for the main competitions is one of the features all the coaches share, and the year is planned back from it. A year without one doesn't need that. The premise here is that the base stays up all year and a start takes a few weeks of specific work. We take the proportions from the Norwegian model but not its calendar.

What carries over, and why it suits an ordinary week

• A little hard work, kept in. When hours are short, the research on maintaining fitness says to shorten the easy sessions before dropping the intensity. The Norwegian pattern agrees: one or two key sessions a week, finished with something in hand. The page on staying fit when training isn't the centre of your life has the details.

• The same few sessions, repeated. Elite coaches rotate through a short list of sessions so that this week's can be set against last month's. For an ordinary person it is the cheapest sensor there is: when the usual session feels heavier, the week has been heavier than it looked. It is the same signal as "how easy effort feels" in the page on training around a busy life.

• A lighter week on purpose. For an ordinary person the useful version is a habit rather than a fixed calendar. When work or home has already made the week heavy, the lighter training week is the plan, not a failure to keep up.

• One language for several sports. Run, ride, ski, swim: easy means the same in each, so a week can be balanced across disciplines without a different scale for each. That is what makes mixing sports workable rather than messy. The evidence on how widely the scale is used is modest: the survey recruited mainly through social media, about 80% of respondents were men, Norwegians were over-represented, and its authors are affiliated with Olympiatoppen.

• Mixing sports, with a caveat. Cross-training is a normal part of the Norwegian pattern in skiing, biathlon, rowing and speed skating, though not for runners. The data doesn't test whether mixing helps an ordinary person. It is a choice about spreading the load and keeping the habit interesting.

What it looks like in a week

The same three amounts of time as on the page about staying fit, arranged the Norwegian way. These are starting points, not prescriptions.

On paper, 10–15% of the time at moderate or hard effort is under half an hour of hard work in a three-hour week, and about an hour in an eight-hour one. It is small, and that is the point. For comparison, the accumulated hard work in a single key session of an elite distance runner is about 20–40 minutes at threshold intensity and 15–35 minutes in zone 4 [2]. The key sessions in the table are about that size; what an ordinary week has fewer of is the number of them. A lighter week follows the 25–35% reduction the Norwegian coaches use. Moving between these rows over a year is normal, and so is a week that goes differently from the plan.

What the research doesn't tell us

The main sources are descriptive. The 2025 study rests on twelve male coaches in one country, interviewed in 2022, and its authors present the findings as material for hypotheses rather than proof [1]. They also acknowledge that others may have trained the same way without success, and that their own background in the Norwegian Olympic system may bias how they read the data [1]. The 2024 paper adds that the coaches applied the same system to athletes who were less successful, and that many of its authors helped develop Olympiatoppen's own diary and intensity scale [2]. The 2025 survey, too, was written by authors affiliated with Olympiatoppen, who declare this as a potential competing interest [6]. The singles method has not been tested in any study at all: what exists is one runner's log and the experience of the people who followed it [7]. Studies of successful athletes show what they do, not what would work for someone else, and none of this has been tested on adults in their forties who train around a job and children. The 2024 paper also points out that elite athletes have a broader intensity range below the first lactate threshold than recreational or moderately trained people [2], which is one more reason not to copy heart-rate numbers from the elite scale.

The proportions are the most robust part and the specifics the least: the exact zone boundaries, the number of hard sessions, the rhythm of lighter weeks. So the Norwegian way gives a direction and a sensible starting frame. Where exactly you sit within it comes from your own week, and from how your body answers. That is what the correspondence is for.