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SPARK_COACH_JEN Posts: 57,722
10/7/13 1:38 P

M@L has given you a great answer. It's not a scientific formula because there are so many variables involved, just very rough estimates based on some research and looking at what other sites have used.

Sorry I don't have a more specific answer for you!

Coach Jen

MOTIVATED@LAST Posts: 14,490
10/5/13 6:25 P

Yeah, in terms of something that is defensible and backed by research, I'd say the development process was pretty much the a$$-pull method.

I don't think there is all that much behind it other than giving people the warm fuzzies to do the right thing.

M@L

PANFRIEDTROUT Posts: 3,752
10/5/13 12:35 A

thanks for your reply, Motivated

the reason i'm asking is that for the longest time, a lot of Spark members & also the folks who run the site felt that calories weren't something that could be measured as so many variables go into strength training

so .... i'm curious as to how they went about developing this.

MOTIVATED@LAST Posts: 14,490
10/5/13 12:23 A

I don't think there is much formula about it at all. It doesn't really seem to vary much between large and small muscles, or vary by weight, number of reps, etc.

But one well known study puts the metabolic gain from a regular program of lifting at about 150 calories per day. The very rough calorie estimates from Spark would give you something broadly consistent with this.

I don't think there is much scientific rigour about it, but if it encourages people to take up ST, well, its something I can live with.

M@L

PANFRIEDTROUT Posts: 3,752
10/4/13 11:56 P

Apparently, when you add strength exercises now, it shows how many calories you burned. This is a "feature" many Spark members had asked for.

I'm wondering what formula was used to determine the calorie burn?

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