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Ivo Flipse

12:00 AM

I mailed the people from the site to see if they want to answer it

but they are affiliated with endless pools, so it feels rather commercial to me

Sklivvz

@IvoFlipse Actually, I am trying to see if I can get a better estimate

I mean, they don't take gender into account? It's usually such a large factor

Ivo Flipse

Any estimate like that is next to useless

A: How many extra calories do I burn when running with a jogging stroller?

While drawing diagrams to calculate it would be fun, have you considered comparing your heart rate with and without the stroller? That would be a much more reliable than trying to estimate the increased energy requirements. Here's why: We would need to calculate the friction the stroller has ...

Here's a nice example of a similar question

if you want to know how much energy you use, measure it

Sklivvz

@IvoFlipse It unnerves me, when plugging in the same numbers, I get estimates ranging from 150kCal to 350kCal... I mean, should I eat that extra slice of pizza today or not? ;-)

Different sites, completely different answers

I just wanted to do my own calculator.

Ivo Flipse

Get a heart rate monitor

Sklivvz

@IvoFlipse That's what I was thinking actually. Any suggestion?

Ivo Flipse

12:13 AM

Probably not a bluetooth model, since their battery dies much faster than an ANT+ one

and I fear that the signal will suck in a swimming pool

Sklivvz

BTW, I think I found the formula: braydenwm.com/cal_vs_hr_ref_paper.pdf and mayoclinic.com/health/exercise/SM00109

Ivo Flipse

but Garmin or Polar, doesn't really matter

that first link doesn't work for me :S

and the mayo clinic one only mentions numbers, no references

Sklivvz

@IvoFlipse it does have references

but

Ivo Flipse

oh right, some 'book'

Sklivvz

A mixed model was used to derive the following equation for predicting physical activity energy expenditure (EE):
EE = -59.3954 + gender x (-36.3781 + 0.271 x age + 0.394 x weight + 0.404 V[O.sub.2max] + 0.634x heart rate) + (1 - gender) x (0.274 x age + 0.103x weight + 0.380x V[O.sub.2max] + 0.450 x heart rate)
where gender = 1 for males and 0 for females.

Ivo Flipse

12:16 AM

that sounds plausible, if only you knew your oxygen uptake over time/watt

juststand.org/Portals/3/literature/… oh this link is old :(

Sklivvz

By the way - fitness is our topic of the week so you may want to participate :-)

Ivo Flipse

Oh boy

well, I'll try to keep an eye out

anyway, time for bed for me!

Sklivvz

:-) night

1 hour later…

user11126

1:47 AM

@IvoFlipse where did that meta post go?

user11126

2:40 AM

Q: Help the moderators and use your flags and votes?

I'm going on a holiday for three weeks and since Nathan is fairly busy at work, Greg needs your help to moderate the site. So to anyone with 500+ rep: vote to close questions when they are off-topic, not constructive or are generally poor. Even if you don't have 500 rep, you can always flag qu...