Steady State Cardio (LISS): What It Is and How to Do It

HIIT gets the attention because it is dramatic and short. Steady state cardio gets ignored because it is neither. It is also the kind most beginners should be doing most of, and the reasons are worth understanding rather than taking on trust.

Steady state cardio means holding one moderate, sustainable effort for the whole session, typically 20 to 60 minutes at a pace where you can still talk. Walking, cycling, swimming and easy jogging all qualify. LISS, low intensity steady state, is the same thing at the gentler end.

What counts as steady state

Two conditions. The effort stays roughly constant rather than rising and falling, and it sits at a level you could sustain for a long time.

That rules out intervals, which alternate hard and easy by design, and it rules out anything that leaves you gasping. It includes a brisk walk, a steady cycle, a slow continuous swim, a gentle jog, and most of what people do on a cross trainer without thinking about it.

LISS and steady state are used more or less interchangeably. Strictly, LISS is the gentler end, a brisk walk rather than a steady jog, but the distinction rarely matters in practice.

The fat burning zone, honestly

This is the claim attached to steady state most often, and it is half true in a way that misleads people badly.

The true half: at lower intensities your body does take a larger proportion of its energy from fat. That is real physiology and it is where the fat burning zone idea comes from.

The misleading half: a larger proportion of a smaller number is not necessarily more. A hard session burns more total calories, and for fat loss what matters is total energy over days and weeks, not which fuel you used during one hour. You cannot reason from fuel percentages to body composition.

So do not choose steady state because it burns fat. Choose it because you can do more of it, more often, without needing to recover, which over a month usually adds up to more total activity than a punishing routine you abandon. That is the actual argument, and it is a better one. There is more on this in does cardio help you lose weight.

Why it suits beginners

• You can repeat it. A steady 30 minute walk costs almost nothing in recovery, so you can do it the next day and the day after. Three hard interval sessions a week is often all a beginner can absorb.
• It is hard to do badly. There is no technique to learn and little to get wrong, which removes the main injury risk of jumping into intervals unprepared.
• It builds the base everything else sits on. Steady work improves how efficiently your heart and lungs deliver oxygen, which is what makes harder training possible later.
• It is kind to joints. Walking and cycling are low impact, which matters if you are heavier, older, or returning from a break.
• You will actually keep doing it. The best cardio is the sort you have not quietly stopped by March.

None of this makes HIIT bad. It makes it a tool for later, or for a smaller share of your week, and the beginner HIIT workout covers doing it safely when you get there.

How to find the right effort

Three methods, in order of how useful they are for most people.

The talk test

Say a full sentence out loud. If you can do it comfortably but singing would be a struggle, you are in the right place. Too easy and you could sing. Too hard and you can manage a few words at a time.

Free, accurate enough, and unaffected by caffeine, heat, sleep or a watch with a bad reading. This is the one to use.

Effort out of ten

Rate how hard it feels from one to ten, where one is sitting still and ten is a sprint you could hold for seconds. Steady state sits at about five or six. LISS at the gentler end sits at four or five.

Heart rate

Roughly 60 to 70 percent of your maximum heart rate. The target heart rate calculator will give you the numbers.

Listed third deliberately. Estimated maximum heart rate formulas carry a wide margin of error between individuals, so a calculated zone can be ten beats out in either direction. Use it as a cross-check on the talk test, not the other way round.

What to actually do

Walking is not a lesser option here. For most beginners it is the correct one, and walking for weight loss covers building it into something meaningful. If the weather rules it out, indoor workouts for rainy days has alternatives.

How much, and how to fit it in

The general adult guidance is 150 minutes of moderate activity a week. That is where the number comes from and it is a reasonable target.

In practice, for a beginner:

• Weeks 1 to 2: three sessions of 20 minutes. Deliberately easy.
• Weeks 3 to 6: three or four sessions of 30 minutes.
• Weeks 7 onward: four or five sessions of 30 to 45 minutes, or fewer longer ones if that suits your week better.

Split sessions count. Three ten-minute walks add up to the same thirty minutes, and for many people that is the difference between doing it and not.

On timing around strength training: steady state is gentle enough that it does not much matter, unlike hard intervals. If you do both in one session, lift first, since arriving at your strength work already tired costs you more than the reverse. Cardio before or after a workout covers it in more detail.

A six-week walking plan

Walking is the version of steady state most people should start with, so here is a concrete plan rather than a vague instruction to move more. Nothing needed but shoes.

Week five is where you reach the general guideline, and it is a reasonable place to stay indefinitely. There is no requirement to keep adding.

Two adjustments if the plan stops fitting. If you cannot find a 30 minute block, split it into two fifteens or three tens, which count the same. If the walking has become too easy to raise your breathing, add hills or an incline rather than more minutes, since that increases effort without increasing impact or time.

What steady state does beyond fat loss

Most cardio content frames everything around weight, which undersells the case considerably. Steady state work has effects that show up whether or not the scale moves.

• Your heart gets better at its job. Regular moderate work increases the volume of blood pumped per beat, which is why resting heart rate tends to fall over a few months of consistent training. It is one of the clearest signs the work is doing something.
• Everyday effort stops feeling like effort. Stairs, carrying shopping, walking to the station. This is usually the first thing people notice, well before any visible change.
• It helps with sleep and mood. Both effects are reasonably well supported and both tend to appear quickly, often within the first fortnight.
• It is a recovery tool. A gentle walk the day after hard training increases blood flow without adding fatigue, which is why easy movement often leaves you feeling better than complete rest does.

That last point is worth using deliberately. Steady state on the day after a heavy leg session is one of the better things you can do with twenty minutes, and what to do on rest days covers it further.

Should you do both steady state and HIIT?

Eventually, yes, and the ratio matters more than the choice.

A reasonable structure once you have a base is roughly four fifths steady and one fifth hard. In a week with five cardio sessions, that means four easy ones and one interval session. Endurance athletes have trained on something close to this distribution for decades, and it works for the same reason at any level: most of your volume should be sustainable, and the hard part should be genuinely hard because you are fresh for it.

The failure mode is doing everything at a middling effort. Sessions that are too hard to be restful and too easy to be a real stimulus accumulate fatigue without much benefit. If you are going easy, go properly easy.

For the first two or three months, though, steady state alone is a perfectly good plan. There is no rush to add intervals, and the base you build makes them more productive when you do.

Four mistakes

• Going too hard. The commonest error by far. If you are breathing too heavily to talk, it is no longer steady state and you lose the main advantage, which is being able to do it again tomorrow.
• Going too easy. A stroll while scrolling your phone is not the same as a brisk walk. You should be warm and breathing noticeably harder than at rest.
• Choosing it for the fat burning zone. Covered above. Choose it for sustainability, which is the real benefit.
• Dropping strength training for it. Cardio and resistance work do different jobs. Steady state does not build or preserve muscle, and losing muscle during fat loss is what makes the result disappointing.

A bike is one of the easiest ways to do this. See exercise bike for weight loss.

For a fixed protocol version of this, see the 12-3-30 workout.

Where to go next

Steady state is one half of a sensible week. Pair it with two or three resistance sessions, because cardio alone will not maintain muscle. The full-body beginner routine or the 4-week beginner program both slot around it.

For the wider picture on cardio, cardio exercises for beginners covers the options and the beginner HIIT workout is where to go when you want to add the hard end.

Frequently asked questions

What is steady state cardio?

Exercise held at one moderate, constant effort for the whole session, usually 20 to 60 minutes. Brisk walking, cycling, swimming and easy jogging all count. The test is whether you can still talk in full sentences.

What is the difference between LISS and steady state cardio?

Very little in practice. LISS stands for low intensity steady state and refers to the gentler end of the same thing, such as a brisk walk rather than a steady jog. The terms are used interchangeably.

Is steady state cardio better than HIIT for fat loss?

Neither is inherently better. HIIT burns more per minute, steady state can be done far more often without needing recovery. Total activity across weeks is what matters, and steady state usually wins on that for beginners because it is sustainable.

Is the fat burning zone real?

Partly. At lower intensities a greater proportion of energy comes from fat, but a larger share of a smaller total is not necessarily more. Fat loss depends on total energy across days and weeks, not on which fuel you used in one session.

How long should a steady state cardio session be?

Twenty to sixty minutes. Beginners should start at twenty and build gradually. Splitting it into shorter blocks across the day counts toward the same total.

How often can I do steady state cardio?

Most days, and daily walking is fine. The low recovery cost is the main advantage over intervals, which need rest days between sessions.

Does walking count as steady state cardio?

Yes, provided it is brisk enough to raise your breathing noticeably. A relaxed stroll does not really qualify. For most beginners, brisk walking is the ideal form of steady state cardio.

Will steady state cardio burn muscle?

Not at reasonable volumes. Very high amounts of cardio combined with a steep calorie deficit and no resistance training can cost you muscle, but a few moderate sessions a week alongside strength work will not.

This article is general information for healthy adults, not medical advice. If you have a heart or lung condition, high blood pressure, or you have been inactive for a long period, check with a doctor before starting a new cardio routine. Stop and seek help for chest pain, dizziness or unusual breathlessness. General activity guidance from the NHS, Physical activity guidelines for adults aged 19 to 64.