Taos Treadmills: Altitude Lies About Calorie Burn?

By Franklin Everett Shaw

February 6, 2026

Forget the treadmill’s digital display. It’s lying to you, especially if you’re pounding the belt in Denver, Colorado, or any other high-altitude locale. Those calorie burn estimations are notoriously inaccurate, and the thinner air only exacerbates the problem.

The problem isn’t just the treadmill; it’s the altitude. At higher elevations, your body works harder to get the same amount of oxygen. This increased effort should translate to more calories burned, but most treadmills don’t account for this physiological shift.

Let’s break down why your Taos treadmill’s calorie counter is likely off and, more importantly, what you can do about it.

The core issue is the Basal Metabolic Rate (BMR). BMR is the number of calories your body burns at rest to maintain basic functions. Altitude affects BMR. Studies have shown that BMR can increase at higher altitudes due to the body’s increased effort to acclimatize to lower oxygen levels.

Imagine two identical twins, one living in Miami, Florida, and the other in Leadville, Colorado (elevation 10,152 feet). The Leadville twin will likely have a higher BMR simply because their body is constantly working harder to breathe.

Treadmills, even high-end Taos models, typically use generic formulas to estimate calorie burn. These formulas often rely on factors like weight, age, gender, and workout intensity (speed and incline). They rarely, if ever, factor in altitude.

This is a significant oversight. A study published in the Journal of Applied Physiology found that energy expenditure during exercise at high altitude can be significantly higher than at sea level, even at the same perceived exertion level.

So, what’s a fitness enthusiast in Denver to do? Relying solely on the treadmill’s display is a recipe for inaccurate tracking and potentially skewed fitness goals.

Here’s a practical guide to getting a more accurate calorie burn estimate during your Taos treadmill workouts at altitude:

1. Embrace the Heart Rate Monitor: This is your most valuable tool. Heart rate monitors provide a more direct measure of your body’s effort. Look for models that connect to fitness apps or offer their own analysis. Polar and Garmin are reputable brands.

2. Calibrate Your Fitness Tracker: Many fitness trackers (like Fitbit or Apple Watch) allow you to input your weight, age, and gender. Some even have settings for activity level. While they don’t directly account for altitude, accurate personal data will improve their estimations.

3. Use MET Values (Metabolic Equivalent of Task): MET values represent the energy expenditure of various activities relative to rest. One MET is the energy you expend at rest. Running at 6 mph has a MET value of around 9.8.

   • Find a MET value chart online.
   • Determine the MET value for your treadmill workout (consider speed and incline).
   • Use the following formula: Calories burned per minute = (MET x 3.5 x body weight in kilograms) / 200.
   • Multiply by the duration of your workout to get the total calorie burn.

   This method is still an estimate, but it’s more accurate than the treadmill’s generic calculation.

4. Adjust Treadmill Settings (Carefully): Some advanced treadmills allow you to input your weight and age. While they won’t directly compensate for altitude, ensuring these settings are accurate is crucial.

5. Track Your Perceived Exertion: Pay attention to how hard you feel you’re working. The Borg Rating of Perceived Exertion (RPE) scale is a useful tool. If you feel like you’re working harder than the treadmill’s calorie counter suggests, you probably are.

6. Consider a VO2 Max Test: For serious athletes, a VO2 max test can provide valuable insights into your body’s oxygen consumption and energy expenditure at altitude. This data can be used to create a more personalized calorie burn estimate.

7. Factor in Acclimatization: If you’ve recently moved to a high-altitude location like Santa Fe, New Mexico, your body will gradually acclimatize. Your BMR will likely decrease over time as your body becomes more efficient at using oxygen. Adjust your calorie burn estimations accordingly.

A common pitfall is relying too heavily on any single method. The best approach is to combine multiple techniques – heart rate monitoring, MET values, and perceived exertion – to get a more comprehensive picture.

Another challenge is consistency. It’s easy to get discouraged when you see a lower calorie burn estimate than you expected. Remember that accurate tracking is a long-term process.

For example, let’s say you’re a 150-pound woman in Denver running at 5 mph on a Taos treadmill. The treadmill might estimate 400 calories burned in 30 minutes. However, using a heart rate monitor and MET values, you might find that you’re actually burning closer to 500 calories due to the altitude.

Don’t fall for the treadmill’s false promises. Arm yourself with the right tools and knowledge, and you can accurately track your calorie burn and achieve your fitness goals, even in the thin air of the Rocky Mountains.