# How do you calculate Karvonen formula?

## How do you calculate 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:

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

## Is the Karvonen formula better?

Try the Karvonen method. It is a more accurate formula because it takes both age and resting heart rate into account. According to the Karvonen formula, you should keep your heart rate between 122 and 142 bpm. Using the “220-age” formula, your heart-rate zone would be 98 to 130 bpm.

## How do you calculate your HRR range?

If you’re aiming for a target heart rate in the vigorous range of 70% to 85%, you can use the heart rate reserve (HRR) method to calculate it like this: Subtract your age from 220 to get your maximum heart rate.

## How do you calculate THR?

THR is calculated by multiplying percent intensity by the MHR. Example: At 70% intensity THR = MHR x 0.70.

## What is the Tanaka formula?

Traditional formulas (men and women): Fox formula (men and women): 220 – 49 = 171 beats per minute MHR. Tanaka formula (men and women): 206.9 – (0.67 * 49) = 174 beats per minute MHR.

## What is a normal heart rate for 15 seconds?

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 part of the day is the best time to work out?

Morning
Morning workouts are ideal for burning fat and losing weight, but afternoon workouts may give your performance a boost, since you’ll have eaten a meal or two by the time you get going. “Any time you eat, your blood sugar levels rise,” Hackney says.

## How do we find 50% of our MHR?

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. At a 50 percent exertion level, your target would be 50 percent of that maximum, or 85 beats per minute.

## How do you find THR and MHR?

Max Heart Rate Method

1. Calculate MHR; MHR = 220 – age.
2. Calculate high and low THR by plugging in a percentage range. In this example, 60 and 80% are being used. MHR x .60 = THRLow MHR x .80 =THRHigh
3. The resulting low and high THR numbers represent the range, or target intensity.

## How is HRmax calculated?

The traditional formula for determining HRmax is “220 minus age”, but can underestimate HRmax by up to 40 beats per minute in seniors. In fact, the method is inaccurate already at an age of 30–40 years, and gets more inaccurate the older you are.