If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
energy output run vs ski
same course, same terrain, same everything except one person on skis, one
person runs. who burns more calories? I'll say the runner. |
Ads |
#2
|
|||
|
|||
energy output run vs ski
"outsideinmi" wrote:
same course, same terrain, same everything except one person on skis, one person runs. who burns more calories? I'll say the runner. Agreed, assuming the individuals are equal in general and specific training and abilities for their sports and have very similar body weights and compositions. And assuming we accept the catch in the way you've posed it: X-C ski race courses typically have more difficult terrain than running courses, hence a runner will have to work harder on a ski course, while a x-c skier would have an easier time on a typical running course. If we are looking at marathon courses, as the OP posed, then things change. The typical x-c ski marathon course is a fair amount longer than offical running marathon ones (26.22 miles = 42.19k). In that case, a real world comparison points to the likelihood of higher overall caloric expenditure for the skier. This can be seen looking at METS (metabolic equivalents), a commonly used measure of energy output (ml O2/kg/min divided by 3.5). From the Compendium of Physical Activities,* an average 3:00 marathon runner (8.74 mph) is putting out about 14.3 METS, while a 3:00 ski marathoner, say on a 50k course (10.36 mph), is putting out - well, the table doesn't go that high; the closest is 14.0 METS at 8 mph racing. For the very top marathon runners, a 2:05 is 12.57 mph; the highest the table shows is for 10.9 mph - 18.0 METS. Pretty hefty. A 2:05 ski marathon on a 50k course, a time that for top skiers is quite a bit slower than the marathoner's 2:05, averages 14.92 mph. I have no data to extrapolate the latter into METS, but it's hard to imagine it is less than 18.0, or even close (and less so at a more equivalent top ski racer's average speed). Note that these MET figures are not adjusted for course difficulty or length, which presumably disfavors the x-c skier. *http://www.liveoakcaf.com/kin%20163/...activities.pdf Gene |
#3
|
|||
|
|||
energy output run vs ski
a 42K is not even technically a real ski marathon, but any national
level skier will ski 42K faster than 2 hrs. Also skiing courses are hilly compared to Olympic marathons. The Lake Placid loppet, the 50K course I am most familiar with, has ~3,700 feet of cumulative climbing. I am not sure there are "bona fide" running marathons with that much climbing. Trail running would probably be a better comparison, and a 42K trail run following the Loppet course (imagining it was paved - ha-ha) would not be done in 2 hrs even by the top runners. |
#4
|
|||
|
|||
energy output run vs ski
On Sat, 5 Feb 2011 14:13:09 -0800 (PST)
" wrote: a 42K is not even technically a real ski marathon, but any national level skier will ski 42K faster than 2 hrs. Also skiing courses are hilly compared to Olympic marathons. The Lake Placid loppet, the 50K course I am most familiar with, has ~3,700 feet of cumulative climbing. I am not sure there are "bona fide" running marathons with that much climbing. Trail running would probably be a better comparison, and a 42K trail run following the Loppet course (imagining it was paved - ha-ha) would not be done in 2 hrs even by the top runners. That's why I've compared only to road running, which Neil in the earlier thread seemed to be referring to. Get on a trail and everything changes. Gene |
#6
|
|||
|
|||
Lol Lol Lol
|
#7
|
|||
|
|||
energy output run vs ski
On Feb 5, 6:08*pm, Terje Mathisen "terje.mathisen at tmsw.no" wrote:
wrote: a 42K is not even technically a real ski marathon, but any national level skier will ski 42K faster than 2 hrs. Also skiing courses are hilly compared to Olympic marathons. The Lake Placid loppet, the 50K course I am most familiar with, has ~3,700 feet of cumulative climbing. I am not sure there are "bona fide" running marathons with that much climbing. Trail running would probably be a better comparison, and a 42K trail run following the Loppet course (imagining it was paved - ha-ha) would not be done in 2 hrs even by the top runners. The marathon which ends the Norseman eXtreme Triathlon (nxtri) goes from 190 to 1850 m over the last 17 km, i.e. very close to 10% average grade. http://nxtri.com/ The hill is simply known as "Zombie Hill". Take a look at the course he http://nxtri.com/var/nxtri/storage/images/race_info/course_and_map/no... Terje PS. My sister's son Christian will start his 4th race this August, he came 10th last year, 20 the previous attempt and the first time he hit the wall so badly on Zombie Hill that he had to withdraw. there are plenty pain fest-type races out there. Badwater and the Western States pop into mind. May be your nephew can check those out, too. |
#8
|
|||
|
|||
energy output run vs ski
|
#9
|
|||
|
|||
energy output run vs ski
I don't get it. I can run, ski and bike all at 190 HBM -- but skiing
is using the most muscle by far, due to using all 4 limbs plus trunk, so isn't it burning more calories? Isn't it a semi-simple HR + muscle mass equation? OK, you need to add force-per-stroke in there. I sense more effort going into skiing than either running or cycling -- I assume due to the much greater muscle engagement. I suppose the cadence of cycling is fastest, then running, then classic skiing, then skating. But then we need to count force per stroke. Speed skating is high on the force, low on cadence (generally). What about rowing? HUGE on force and muscles recruited... But when you put cadence back in there... Doesn't this relate to why skiing seems to come out on top in the VO2Max ranks? --JP |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Kinetic energy of Slob Catastrophic | Clarencedarrow | Alpine Skiing | 18 | March 17th 07 09:00 PM |
Kinetic Energy of Slab Catastrophic | Jeff Davis | Alpine Skiing | 8 | March 9th 07 02:21 AM |
Who has the most Energy in XC? The biggest maniac hustler? | [email protected] | Nordic Skiing | 3 | December 27th 05 06:31 PM |
Marker M8.2 Energy Control 14 Binding? | Kelley730 | Alpine Skiing | 0 | July 5th 04 02:39 PM |
"energy straps" for Swix SR 94 straps | Eddie Luban | Nordic Skiing | 1 | December 10th 03 05:24 AM |