Fitness

Should You Try MAF Training?

Low-heart-rate training isn't for everyone. Find out if the MAF method is right for where you are in your fitness journey.

Question 1 of 5

What's your primary training goal?

Build endurance or aerobic baseI want to run, cycle, or exercise longer without burning out

Burn fat more efficientlyI want to improve my fat-burning metabolism

Long-term health and consistencyI want a sustainable approach I can do for years

Improve performanceI want to get faster or stronger

How would you describe your current cardio experience?

Little or noneI'm new to cardio training

Some experienceI run, walk, or cycle occasionally

RegularI do cardio 3–4 times per week

Well-trainedI've been consistently training for a year or more

When you do cardio, do you often feel very out of breath?

Yes, almost alwaysI push hard and end up breathing heavily

SometimesI vary my intensity

NoI tend to keep a comfortable, conversational pace

Do you frequently get sick, feel run-down, or struggle to recover from training?

YesI feel overtrained or run-down more than I'd like

SometimesOccasionally, after harder periods

NoI recover well and rarely get sick from training

Are you willing to slow down significantly — even if it feels embarrassingly slow at first?

YesI can commit to the process even if progress feels slow

MaybeI'd try but I'm not sure I'd stick with it

NoI need to feel like I'm working hard

Your result

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Next steps

About this quiz

This quiz evaluates whether the Maffetone Method — low-heart-rate aerobic training based on the 180 Formula — is an appropriate approach for you right now. The result depends on your goals, experience level, mindset, and willingness to commit to a method that produces results over months rather than weeks.

What is MAF training?

MAF training, developed by Dr Phil Maffetone, is an approach to aerobic development that keeps all training below a specific heart rate ceiling. The core formula: 180 minus your age gives your MAF heart rate. For a 40-year-old, that's 140 bpm. Adjustments are made for health status, training history, and injury frequency.

The idea is that training below this ceiling forces your body to rely primarily on fat as fuel — developing the aerobic energy system rather than the glycolytic (carbohydrate-burning) system. Over time, your pace at the same heart rate improves significantly — indicating genuine aerobic improvement.

The 180 Formula and adjustments

Start with 180 minus your age, then adjust:

Subtract 10 if you have or are recovering from a major illness, injury, or surgery, or if you get sick more than twice per year
Subtract 5 if you've been training inconsistently, or have not been training for up to two years
Keep as is if you've been training consistently (at least four times per week) for up to two years without the above issues
Add 5 if you've been training for more than two years without health issues and have been making progress

What to expect when you start MAF training

The initial phase of MAF training is often discouraging. Most people find they have to slow to a walk to keep their heart rate below their MAF ceiling. This is normal — it reflects how little aerobic base most people have developed, even if they feel "fit" by conventional measures.

The adaptation is gradual. Most people see their pace at MAF heart rate improve over 3–6 months of consistent training. The benchmark test: once a month, run a fixed distance (e.g. 1 mile) at exactly your MAF heart rate and record your time. If your time improves, your aerobic base is building.

Who benefits most from MAF training?

People who frequently get sick or injured from training — a sign of overtraining and inadequate aerobic base
Runners and cyclists who have hit a performance plateau despite increasing training volume
People who rely heavily on carbohydrates for energy and want to improve fat-burning capacity
Anyone who has been training mostly at moderate intensity ("grey zone") without structured polarisation
Beginners who want to build fitness safely and sustainably from the ground up

Frequently asked questions

How long do you need to do MAF training before seeing results?

Most people see measurable improvement in their MAF pace within 3–6 months of consistent training. The first month often shows little or no improvement — this is the adaptation phase. Consistency over this period is what separates those who see results from those who give up too early.

Can you do MAF training alongside strength training?

Yes. MAF is an aerobic training protocol and doesn't conflict with resistance training. Many practitioners combine MAF cardio sessions with 2–3 strength training sessions per week. Just ensure recovery is adequate — MAF training is low stress, which makes this combination sustainable.

Is MAF the same as Zone 2?

They're related but not identical. MAF uses a specific formula to set a heart rate ceiling. Zone 2 is typically defined as 60–70% of maximum heart rate. For most people, MAF heart rate falls within or just below Zone 2 — but the exact overlap varies by age and fitness level.

Do you need to eat low-carb to do MAF training?

No — though Maffetone's programme does recommend reducing refined carbohydrates. The low-heart-rate training itself improves fat oxidation regardless of diet. Many people do MAF training successfully on a standard mixed diet.