# How do you calculate your heart rate reserve?

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## How do you calculate HRR and MHR?

Calculating Heart Rate Reserve: Subtract RHR from your MHR to determine your HRR. For example, 180(MHR) – 60(RHR) = 120(HRR).

## What is a good heart rate reserve?

The normal person is sitting at idle (rest) with a heart rate of 70 and a predicted max heart rate of 185 beats per minute (220 – 35). The normal persons reserve capacity would be 185 – 70 = 115 beats per minute.

## What MHR 70%?

Fitness Training Zone 3 (70 – 80% of MHR) – This Fitness Training Zone is the most effective for overall cardiovascular fitness and is often called the “aerobic zone” or “target heart rate zone”.

## What is Karvonen formula?

The Karvonen formula is your heart rate reserve multiplied by the percentage of intensity plus your resting heart rate. For example, a 50-year-old with a resting heart rate of 65 would calculate as follows: 220 – 50 = 170 for HRmax. 170 – 65 = 105 for RHR. [105 x 0.75 (max intensity)] + 65 = about 144 bpm.

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## Is 150 a good heart rate for exercise?

The American Heart Association recommends that a person does exercise that is vigorous enough to raise their heart rate to their target heart-rate zone—50 percent to 85 percent of their maximum heart rate, which is 220 beats per minute (bpm) minus their age for adults—for at least 30 minutes on most days, or about 150 …

## What is a good heart rate for my age?

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

## What is heart rate reserve used for?

Heart Rate Reserve (HRR) is the difference between your Resting Heart Rate and your Maximum Heart Rate. It’s used primarily for determining heart rate zones during exercise, and the amount of cushion in heartbeats available for exercise.

## What heart rate is anaerobic?

Your maximum heart rate can loosely be estimated by subtracting your age from 220. Generally, Lakritz says, working at 50–70% of your heart rate maximum is considered aerobic training, 70–80% is considered lactic threshold training, and 80–95% is considered anaerobic training.

## What happens if I exceed my maximum heart rate?

Exercising above 85% of your target heart rate could bring you sore joints and muscles. It puts you at risk for overtraining, which may discourage you from exercising, which is altogether unproductive.

## How long can you stay in heart rate zone 4?

A true Zone 4 effort cannot be sustained for much longer than 2-4 minutes, a little longer for elite athletes. You will not want to talk in Zone 4, but can manage 1-2 words if you must speak.

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## How accurate is the Karvonen formula?

Although the Karvonen formula can overestimate or underestimate the exercise intensity in certain patients, it provides general rule-of-thumb target heart rates, with light-intensity exercise being defined as activity using 30% to 40% of the heart rate reserve, moderate-intensity exercise using 40% to 60%, and vigorous …

## Why is the Karvonen method preferred?

Not to be confused with resting heart rate, this determines the interval of time to a prescribed level of recovery. This is the best method to use and it takes into account the difference between your maximum heart rate and your resting heart rate, which is called the heart rate reserve.