What I meant was that if you find an activity on eTools, it might say Step Aerobics is 8 points per hour, but depending on the difficulty of the class and your fitness level, you might only burn 500 calories and should only be recording 5 points per hour. I find that the eTools overestimates for specific activities saved in its database, but it does okay if you just use RPE (rate of perceived exertion).
The only other issue is they only really have 3 RPE - Light, Moderate, Hard when the RPE chart is often 1-10 from laying down to max HR. There can be a lot of variation between 4 and 7, which might all be considered moderate workouts.
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