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Last updated: Jun 27, 2022
6 min read

Target heart rate for weight loss

 

chimene richa

Reviewed by Chimene Richa, MD

Written by Amy Isler

Disclaimer

If you have any medical questions or concerns, please talk to your healthcare provider. The articles on Health Guide are underpinned by peer-reviewed research and information drawn from medical societies and governmental agencies. However, they are not a substitute for professional medical advice, diagnosis, or treatment.

Your heart rate—the number of times your heart beats per minute (bpm)—is a key to burning fat and losing weight. 

When the rate gets high enough and is in a “fat-burning” zone, your body shifts from using carbs as its primary energy source to using body fat stores instead. So, if you’re on a weight loss journey, finding your target heart rate to burn fat may help you achieve a healthy weight faster. 

This article breaks down how to calculate your target heart rate for exercise and highlights physical activities to keep you in the fat-burning zone and on the path to achieving your weight-loss goals. 

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Calculating your target heart rate for fat loss

Everyone has a resting heart rate (RHR), which is the number of times your heart beats per minute while you’re resting. The average adult’s RHR is 60–-100 bpm, but it may be as low as 40 for athletes (AHA, 2015). 

It can be affected by several factors, including stress, hormones, anxiety, medication, and physical activity. A higher RHR is associated with an increased risk of heart disease and a lower life expectancy (Ó Hartaigh, 2014; AHA, 2015).

Figuring out your heart rate is as simple as counting your pulse for 15 seconds and multiplying that number by four. For example, if you count 25 pulses in 15 seconds and multiply that by 4, your heart rate is 100 bpm. The best places to find your pulse include: 

  • Inside the wrist
  • Side of the neck
  • Top of the foot
  • Inside the elbow

Once you find that number, you’ll be able to figure out your fat-burning heart rate zone. But, before you commit to reaching that number with a new exercise routine, talk with a healthcare provider if you are on medications or have a chronic health condition. These factors can alter your fat-loss target heart rate.

Fat-burning heart rate chart

Your heart rate increases during exercise to keep up with your body’s oxygen demands. Fat loss is triggered when your heart rate is in a steady state in a particular zone (meaning your heart rate remains in a certain zone for a certain amount of time). 

Researchers have found that the best target heart rate for fat loss seems to be 60–80% of your maximum heart rate or MHR (Carey, 2009). To figure out your fat-burning heart rate, you first need to calculate your maximum heart rate—simply subtract your age from 220. 

For example, if you are 40 years old, your max heart rate would be 180 bpm (220 – 40 = 180). This means 180 bpm is the maximum number of times your heart can safely beat per minute while exercising. However, you can’t sustain your maximum heart rate for the entirety of a workout. That’s where heart rate zones come into play. 

Here is a handy chart that breaks down fat-burning heart rate zones by age. Note that these are averages, and your fat-burning heart rate zone may differ.

Other benefits of exercise

Of course, burning fat is not the only reason to get your heart pumping. Exercise has other cardiovascular benefits, and it can improve heart health by helping (Nystoriak, 2018): 

To achieve these benefits, you want to shoot for the lower end of your fat-burning heart rate zone for moderate-to-lower-intensity exercises and closer to the higher percentages for more intense exercises (CDC-b, 2022).

How to measure your heart rate

Technology has made monitoring your heart rate during exercise easier than ever. Wearables, fitness trackers, and mobile apps use sensors and algorithms to collect detailed data on your heart rate zones. 

Some of the best available tools to measure heart rate include (Pasadyn, 2019):

  • Activity trackers
  • Chest straps
  • Smartwatches 
  • Taking it manually during exercise (count pulse for 15 seconds and multiply by 4)

Studies have shown that chest straps and wearable fitness trackers are relatively accurate at continuously monitoring heart rate. Ultimately, the device you choose for monitoring your heart rate comes down to personal preference, budget, and convenience (Chow, 2020).

What workouts are good for burning fat?

The number of calories and maximum fat you burn during your workout depends on exercise intensity. Studies show moderate-intensity exercises are ideal for burning fat, while high-intensity workouts improve aerobic fitness and may burn more calories overall (Carey, 2009). 

Moderate intensity exercises that put you in the fat-burning zone include (CDC-a, 2022):

  • Brisk walking (3 miles per hour)
  • Gardening
  • Water aerobics 
  • Cycling on flat terrain
  • Tennis 
  • Ballroom dancing 

High-intensity workouts that put you in the aerobic zone include (CDC-a, 2022):

  • Cardio 
  • Jogging
  • Hiking uphill
  • Cycling (10 miles per hour)
  • Jumping rope
  • Heavy gardening
  • Dancing 
  • Elliptical machine

High-intensity interval training (HIIT), which combines low-intensity exercises with intervals of high-intensity exercise (such as sprinting), may also be effective at reducing belly fat and promoting weight management (Boutcher, 2011).

Other ways to burn fat

Aside from exercise, there are other things you can do to burn fat and minimize weight gain, including:

  • Eating a well-balanced diet—High-protein foods and high-fiber fruits and vegetables may help you feel fuller longer, thereby reducing body fat (Simonson, 2020; Gardner, 2018).
  • Getting plenty of sleep—Not getting enough shuteye may make it harder to lose weight (Wang, 2018).
  • Consuming healthy fats—Olive oil, nuts, coconut oil, and avocados may be associated with long-term weight loss (Locke, 2018).

Understanding your fitness level and limitations is critical to developing a successful workout routine to keep you in the fat-burning zone. Switching it up between low and high-intensity workouts can keep you motivated, burn more calories, and help you achieve your healthy weight goals. 

References

  1. American Heart Association (AHA). (2015). All about heart rate (pulse). Retrieved from https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/all-about-heart-rate-pulse
  2. American Heart Association (AHA). (2021). Target heart rates chart. Retrieved from https://www.heart.org/en/healthy-living/fitness/fitness-basics/target-heart-rates?gclid=Cj0KCQjwkruVBhCHARIsACVIiOxHLUpQ5w1xq69627G8H6OZYKmWSrvrf-eGlP4YZ6jBqJOQvAGtoncaAuGeEALw_wcB
  3. Boutcher, S. H. (2011). High-intensity intermittent exercise and fat loss. Journal of Obesity, 2011, 868305. doi:10.1155/2011/868305. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2991639/
  4. Carey, D. G. (2009). Quantifying differences in the “fat burning” zone and the aerobic zone: implications for training. Journal of Strength and Conditioning Research, 23(7), 2090–2095. doi:10.1519/JSC.0b013e3181bac5c5. Retrieved from https://pubmed.ncbi.nlm.nih.gov/19855335/
  5. Centers for Disease Control and Prevention (CDC-a). (2022). Measuring physical activity intensity. Retrieved from  https://www.cdc.gov/physicalactivity/basics/measuring/index.html
  6. Centers for Disease Control and Prevention (CDC-b). (2022). Target heart rate and estimated maximum heart rate. Retrieved from https://www.cdc.gov/physicalactivity/basics/measuring/heartrate.htm
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