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Glam Journal

What is the Karvonen method

Author

David Craig

Updated on April 27, 2026

The Karvonen method, otherwise known as the heart rate reserve (HRR) formula, takes your resting heart rate into consideration by introducing the difference between your maximum heart rate and your resting heart rate. To determine your HRR, take your HRmax and subtract your resting heart rate (RHR).

What is the Karvonen method used for?

Definition: The Karvonen Formula is a mathematical formula that helps you determine your target heart rate zone. The formula involves using your maximum heart rate (MHR) minus your age to come up with a target heart rate range (which is a percentage of your MHR).

How do you calculate 70 percent of your maximum heart rate?

Calculate your heart rate reserve (HRR) by subtracting your resting heart rate from your maximum heart rate. Multiply your HRR by 0.7 (70%).

Is Karvonen method accurate?

Davis and Convertino found the Karvonen formula to be a reasonably accurate method for estimating exercise intensity.

How do I calculate my HHR?

HHR is your maximal heart rate minus your resting heart rate. It estimates the percentage of your VO2 Max at which you are working and shows how much your heart rate can increase with exercise. For example, if Bill’s maximal heart rate is 200 and his resting heart rate is 45, his heart rate reserve will be 155.

Who invented the Karvonen formula?

Martti Karvonen (1918 – 2008) might be most famous for his equation (Training heart rate=[maximal heart rate-resting heart rate] X desired exercise intensity) that he thought up in 1957, or as the surgeon general of the Finnish army.

What is MHR?

Maximum heart rate is the maximum number of beats made by your heart in 1 minute of effort. When walking quickly, you will be in an endurance zone, with a heart rate of between 60% and 75% of your maximum heart rate (MHR). Knowing your rate means listening to your body. This is the procedure.

How is Target HR calculated?

Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.

What is the frequency of cardiorespiratory endurance?

In summary, to improve cardiovascular fitness, a regular aerobic exercise program, repeated 3–5 times per week for 20–60 minutes and at an intensity of 142–186 BPM (50%–85% of the maximum heart rate for youth), is ideal.

Is MAF formula accurate?

The MAF assessment and additional instructions are claimed to have been devised following “years of clinical assessments.” Although, Dr Maffetone’s reasoning for why specific training at low intensity has empirical evidence his 180 formula lacks efficacy.

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What's a normal heart rate for a 14 year old?

Normal heart rates at rest: Children (ages 6 – 15) 70 – 100 beats per minute. Adults (age 18 and over) 60 – 100 beats per minute.

When is heart rate too high during exercise?

Subtracting your age from the number 220 will give you your maximum heart rate. Suppose your age is 35 years, your maximum heart rate is 185 beats per minute. If your heart rate exceeds 185 beats per minute during exercise, it is dangerous for you. So, 200 beats per minute are bad for you in this case.

How do you calculate HR range?

To estimate your maximum age-related heart rate, subtract your age from 220. For example, for a 50-year-old person, the estimated maximum age-related heart rate would be calculated as 220 – 50 years = 170 beats per minute (bpm). The 64% and 76% levels would be: 64% level: 170 x 0.64 = 109 bpm, and.

At what heart rate do you burn fat?

Your fat-burning heart rate is at about 70 percent of your maximum heart rate. Your maximum heart rate is the maximum number of times your heart should beat during activity. To determine your maximum heart rate, subtract your age from 220.

What is the fat burning zone?

The ‘fat burning zone’ is where you are working out at about 70 – 80% of your maximum heart rate, also known as your fat burning heart rate. Last updated on 3 September 2020. If you’re looking to lose weight and keep fit, the general rule of the game is to increase the intensity of your workouts.

How do you calculate Karvonen?

  1. 220 – 50 = 170 for HRmax.
  2. 170 – 65 = 105 for RHR.
  3. [105 x 0.75 (max intensity)] + 65 = about 144 bpm.

Which is better HRR or MHR?

Basing training zones on a percentage of your heart rate reserve (HRR) is more accurate because it takes into account both your max HR and your resting heart rate. Your HRR is simply your max HR minus your resting heart rate, and reflects how much your heart rate can increase to provide more oxygen to your muscles.

What is 75 of my max heart rate?

You want to stay within 50—75 percent of your maximum heart rate during exercise, depending upon your fitness level. To find your target heart rate, multiply your maximum heart rate by 0.50. This will give you the low range number. Then, multiply your maximum heart rate by 0.75.

What is frequency workout?

Frequency, as it applies to exercise, refers to how many times a week you do cardio and strength training workouts. It is one component of the basic F.I.T.T. principles that guide us in creating and changing workout programs.

What does HRmax mean?

Heart rate and exercise intensity share a direct, linear relationship: the more intense the exercise, the higher the heart rate. When you exercise at the highest possible intensity, your heart will reach maximal heart rate (HRmax), the fastest rate it is capable of beating.

What is Zone 5 heart rate?

Zone 5: 90 to 100 percent of maximum heart rate.

Who developed this equation max HR 220?

The most widely used age-based HRmax prediction equation is the formula generated by Fox et al. (1971) of HRmax = 220-age.

What is a good heart rate?

A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.

What are 5 exercises for cardiovascular endurance?

  • Brisk walking.
  • Running.
  • Jogging or jogging in place.
  • Burpees.
  • Bear crawls.
  • Swimming.
  • Water aerobics.
  • Cycling/bicycling.

How do you improve muscle strength?

  1. lifting weights.
  2. working with resistance bands.
  3. heavy gardening, such as digging and shovelling.
  4. climbing stairs.
  5. hill walking.
  6. cycling.
  7. dance.
  8. push-ups, sit-ups and squats.

How does cardiovascular fitness progress frequency?

  1. Frequency: 5 times per week.
  2. Intensity: Warm up for 5 minutes. …
  3. Time: Exercise for at least 10 minutes at a time, with a goal of at least 30 minutes per day (more is even better, if tolerated).

Why is Karvonen method more accurate?

Try the Karvonen method. It is a more accurate formula because it takes both age and resting heart rate into account.

How many hours a week should you train MAF?

As many successful MAF-trainees will attest, the secret to success is training volume. Some suggest that 4-6 hours of running a week is optimal for MAF training. Well, I definitely didn’t get anywhere close to that over the past 4 weeks.

Does MAF training increase VO2 max?

It is perfectly normal to see your VO2 max drop when you are training using the MAF method. Your watch ‘estimates’ your VO2 max using an algorithm which is based on heart rate and pace. … As soon as you start doing any speed work again, you will find that your VO2 max ‘estimate’ on your watch improves.

What causes high heart rate in teenage girl?

Tachycardia Causes The most common cause of tachycardia in children and teenagers is sinus tachycardia. This simply means that the sinus node is firing at a fast rate. Most of the time sinus tachycardia is a normal physiologic response.

Why do babies heart beat so fast in the womb?

A very fast heart rate may be caused by abnormal firing of the nerves that are responsible for the heartbeat. If the heart beats too fast, contractions are shallow and not enough blood is pumped with each heartbeat. As a result, the fetus can go into heart failure.