Holobarre
Fri, Jun-27-03, 06:13
. Sometimes it is interesting to look at human exertion in
electrical terms, such as a light bulb.
I have read that the maximum "sustainable" mechanical
power output is about 146 Watts, while running at
marathon-levels. I have calculated that a power-lifter
snatching his BW overhead generates a very short-term
3,000 watts (!!!!). If the powerlifter were to do this
every minute, he could in fact approximate the overall
calorie burn of the runner. Probably not too pleasant
tho, but then marathoning ain't too pleasant, either.
Weightlifting in general is quite under-rated as a
calorie burner, and while generally falling quite short
of marathon-type expenditures, is far superior to
half-assed aerobics, and vigorous weightlifting is in
fact roughly equivalent to slow-medium jogging, with far
more benefits,
IMO.
BUT HARK:
But another of Hogg's Calculations.
What is the light-bulb equivalent, in watts, of a
typical **BMR**, ie, calorie burn while totally
sedentary? If my conversions are correct, it goes
something like this:
Assume a BMR of 1,000 cals (proly low, but a good
round figger)
1 Cal (dietary calories) is actually 1,000 thermodynamic
calories, so 1,000 cals/day is really 1,000,000
"regular" calories. 1 cal=4.184 joules, so we are
burning 4,184,000 joules per day; a day is 24*60*60 =
86400 seconds; Watt is joules/second, and
Hogg's Grand Calculation: [the light bulb equivalent
of a totally sedentary person (or a
highly-concentrating Garrison or Cardone, say during
Chess, if they could learn the moves)] is
1000 cal BMR = 48.4 watts.
<applause> Thank you, thank you... no, no, it was *my*
pleasure...
If your BMR is 1200 cals, multiply 48.4 by
1200/1000, or 48.4 x
1.2 = 58 Watts, etc. Ball park: we could "run" a 60 W light
bulb 24 hrs a day with our BMR.
Furthermore,
If the mechanical output of a marathon runner is about
150 W, that represents a 25-33% metabolic efficiency,
which translates to 450-600 total watts produced by the
body in that effort. Add to that the 60 BMR watts, and
you have a very substantial 500-650 continuous metabolic
watts produced during a marathon run, which is the
better part of a full horsepower motor (746 watts).
1/4-1/3 hp motors are used to power large library-type
fans. Which is probably what Garrison and Cardone could
best be used for--blowing lots of air at the 150 Watt
level, in a liberry, while *others* read; Garrison could
do that in his, uh, sleep (BMR-- <huyuk>).
This is why, with just a few people in a room, it really
can get quite hot--multiply all those 60 W bulbs, plus
the extra due to milling around, etc. At a rough 100 W
total metabolic output per person, 20 people in a living
room is a substantial 2,000 W, 500 W more than your
standard electric heater going full tilt. But probably a
lot less then Garrison and Cardone blabbing full tilt.
Open the windows... please....
Well, file this away in your
what-I-need-to-know-in-case-I-am-kidnapped file. Might
could save yer life.
----------------------
Kristofer Hogg, ms, rd HoloBarre Rehab/Fitness/Stretching
Systems, Yonkers, NY Yeah, all my stuff is copywrited... and
copyrighted!
----------------------------------------------------------
----------
electrical terms, such as a light bulb.
I have read that the maximum "sustainable" mechanical
power output is about 146 Watts, while running at
marathon-levels. I have calculated that a power-lifter
snatching his BW overhead generates a very short-term
3,000 watts (!!!!). If the powerlifter were to do this
every minute, he could in fact approximate the overall
calorie burn of the runner. Probably not too pleasant
tho, but then marathoning ain't too pleasant, either.
Weightlifting in general is quite under-rated as a
calorie burner, and while generally falling quite short
of marathon-type expenditures, is far superior to
half-assed aerobics, and vigorous weightlifting is in
fact roughly equivalent to slow-medium jogging, with far
more benefits,
IMO.
BUT HARK:
But another of Hogg's Calculations.
What is the light-bulb equivalent, in watts, of a
typical **BMR**, ie, calorie burn while totally
sedentary? If my conversions are correct, it goes
something like this:
Assume a BMR of 1,000 cals (proly low, but a good
round figger)
1 Cal (dietary calories) is actually 1,000 thermodynamic
calories, so 1,000 cals/day is really 1,000,000
"regular" calories. 1 cal=4.184 joules, so we are
burning 4,184,000 joules per day; a day is 24*60*60 =
86400 seconds; Watt is joules/second, and
Hogg's Grand Calculation: [the light bulb equivalent
of a totally sedentary person (or a
highly-concentrating Garrison or Cardone, say during
Chess, if they could learn the moves)] is
1000 cal BMR = 48.4 watts.
<applause> Thank you, thank you... no, no, it was *my*
pleasure...
If your BMR is 1200 cals, multiply 48.4 by
1200/1000, or 48.4 x
1.2 = 58 Watts, etc. Ball park: we could "run" a 60 W light
bulb 24 hrs a day with our BMR.
Furthermore,
If the mechanical output of a marathon runner is about
150 W, that represents a 25-33% metabolic efficiency,
which translates to 450-600 total watts produced by the
body in that effort. Add to that the 60 BMR watts, and
you have a very substantial 500-650 continuous metabolic
watts produced during a marathon run, which is the
better part of a full horsepower motor (746 watts).
1/4-1/3 hp motors are used to power large library-type
fans. Which is probably what Garrison and Cardone could
best be used for--blowing lots of air at the 150 Watt
level, in a liberry, while *others* read; Garrison could
do that in his, uh, sleep (BMR-- <huyuk>).
This is why, with just a few people in a room, it really
can get quite hot--multiply all those 60 W bulbs, plus
the extra due to milling around, etc. At a rough 100 W
total metabolic output per person, 20 people in a living
room is a substantial 2,000 W, 500 W more than your
standard electric heater going full tilt. But probably a
lot less then Garrison and Cardone blabbing full tilt.
Open the windows... please....
Well, file this away in your
what-I-need-to-know-in-case-I-am-kidnapped file. Might
could save yer life.
----------------------
Kristofer Hogg, ms, rd HoloBarre Rehab/Fitness/Stretching
Systems, Yonkers, NY Yeah, all my stuff is copywrited... and
copyrighted!
----------------------------------------------------------
----------