# Precor treadmill's calorie counter changed

**URL:** <https://boards.straightdope.com/t/precor-treadmills-calorie-counter-changed/746226>\
**Category:** Factual Questions\
**Created:** [February 15, 2016, 9:20pm UTC](https://boards.straightdope.com/t/precor-treadmills-calorie-counter-changed/746226 "2016-02-15T21:20:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Sattua](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sattua/32/11906_2.png) [@Sattua](https://boards.straightdope.com/u/Sattua)\
**Post date:** [February 15, 2016, 9:20pm UTC](https://boards.straightdope.com/t/precor-treadmills-calorie-counter-changed/746226/1 "2016-02-15T21:20:59Z")

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Three times a week I go to my local Y, get on a Precor treadmill, and walk uphill for an hour. These are the fancy networked machines with internet and TV, and you have a personal account that logs your progress.

At my age, weight, incline, and speed, the Precor treadmill reports I always burn ~600 calories during my workout.

Today I did the same workout, but it reported I only burned 515. I checked my age and weight settings. They are still correct.

So which has happened:

1. Faulty machine
2. Precor updated the software with a new algorithm for all of the Y’s machines
3. Precor is punishing me for always doing the same workout

?