calories inline skating

yirara

Yesterday I skated again, and found out I was peaking at 34km/h at a particularly straight and flat cycle path through a bit of a forest. Yikes! I think I really need to find my wrist protectors.

yirara

Right, any number is as good as the other. I decided to use a convoluted way of using the calories my fitbit gives me for running for an hour, 7.5km relative to the cals from miles*lbs*0.64 for a one hour, 7.5km run, and compared it to the calories fitbit gives me for a 1 hour, 20km skate. Ended up playing with different weights around my current weight and am now happy with using km*kg*0.25, which is pretty much the 300kcal I estimated for my skating at my current weight. The multiplier is very low, even lower than walking, but it's so easy to get lots of km together and not really that high effort compared to running.

Note: this is for my weight range, my skates (20 years old and much smaller wheels than current ones). And might be too low. But that's something to try out for me. The effort of skating an hour just isn't that high that I feel I should give it more calories.

heybales

Be aware too that study research has shown that non-weight bearing activities burn more than they feel like due to less stress, which allows more effort (calorie burn) into the movement.
Just doesn't feel like as much effort, but it can be and more. Happens on the bike all the time to me.

So that study of 7.5 METS @ 14.4 Kmh compared to running would be equal to 4.25 mph or 6.84 Kmh.

And the study showed almost equal HR slopes - so you find the walking/running HR that matches your avg effort at skating - and you've probably gotten the pace to compare to for you.
Which would be interesting to find.

Shows how much abuse you may be taking off the joints with skating compared to walking/running at that pace.

yirara

heybales wrote: »

Be aware too that study research has shown that non-weight bearing activities burn more than they feel like due to less stress, which allows more effort (calorie burn) into the movement.
Just doesn't feel like as much effort, but it can be and more. Happens on the bike all the time to me.

So that study of 7.5 METS @ 14.4 Kmh compared to running would be equal to 4.25 mph or 6.84 Kmh.

And the study showed almost equal HR slopes - so you find the walking/running HR that matches your avg effort at skating - and you've probably gotten the pace to compare to for you.
Which would be interesting to find.

Shows how much abuse you may be taking off the joints with skating compared to walking/running at that pace.

I know. I have to start with something, and as running is so difficult for me for various reasons I just made the assumption that skating must be less (even if METs disagree at my current skating speed). I think skating is better for the joins but either overall harder on the muscles (crouching down) or using muscles I'm not used to. Not sure yet. So with the numbers I have, and using average walking, running and skating speeds for me I'd get

walking: 1.3kcal * weight in kg per hour
running: 6kcal * weight in kg per hour
skating: 5kcal * weight in kg per hour

robertw486

yirara wrote: »

heybales wrote: »

Be aware too that study research has shown that non-weight bearing activities burn more than they feel like due to less stress, which allows more effort (calorie burn) into the movement.
Just doesn't feel like as much effort, but it can be and more. Happens on the bike all the time to me.

So that study of 7.5 METS @ 14.4 Kmh compared to running would be equal to 4.25 mph or 6.84 Kmh.

And the study showed almost equal HR slopes - so you find the walking/running HR that matches your avg effort at skating - and you've probably gotten the pace to compare to for you.
Which would be interesting to find.

Shows how much abuse you may be taking off the joints with skating compared to walking/running at that pace.

I know. I have to start with something, and as running is so difficult for me for various reasons I just made the assumption that skating must be less (even if METs disagree at my current skating speed). I think skating is better for the joins but either overall harder on the muscles (crouching down) or using muscles I'm not used to. Not sure yet. So with the numbers I have, and using average walking, running and skating speeds for me I'd get

walking: 1.3kcal * weight in kg per hour
running: 6kcal * weight in kg per hour
skating: 5kcal * weight in kg per hour

Well as long as you use your consistent factor, the data should show you which way (if any) you have to adjust. And you have to start that educated guess somewhere, so it sounds like you have found that point.

Similar to the mentions that @heybales made concerning impact/weight bearing, I've found that the cooling sensation of easier forms of locomotion "fool" me into thinking I'm not working as hard. Being your skating pace is fairly solid, that might come into play as well. Then of course the aero factor with speed, inclines, resistance, drafting off bikes....

Yep, just pick a number and see where it takes you!

yirara

Yep, lets see what happens. I'd hoped to go skating today, but of course it's the first rubbish weather day in ages. I'm not skating with wet roads, and it'a also rather stormy. Will be an evening inside I guess. But break days are also good.

yirara

30km done! Things I realized: My lowest back muscles are currently not strong enough. Maybe back to weights or kettlebells. And skating leads to interesting music stuck in my head. Here it was Song X by Neil Young. Has a cool, skate-movement rhythm to it

acpgee

Consider pilates for strengthening core for dealing with back pain from other exercise.

yirara

Ok, fun one: I uploaded the 30km data to Strava as it has a rollerskating category, and it gave me 1540kcal for it! Lets be honest, I used an HR monitor during the ride and had a fairly high hr all the way through apart from the places where I had to check the map for directions, cross roads or had to go over kind of cobblestone roads. And I can't set custom hr zones in basic strava and know I have a ridiculously high maxHR. Ehm.. nope, I don't think so.

To compare, strava gave me 267kcal for a faster 20km ride without HR data The truth is somewhere out there I'm sure.

acpgee

I remember another ice skating anecdote from Alphen aan de Rijn. I was with a group of people who didn't mind the risk of skating on thin ice. The water is only 60 cm deep at Alphen aan de Rijn, so even if you do fall through the ice, it won't be life threatening.

The ice was beautiful and black. Black ice is something you get when there is a sudden deep frost combined with no wind. The ice freezes quickly with no churning of the water which mixes air into the ice. It's the best ice for skating being very hard, very fast, totally transparent.

We were in an area where the ice was thin and you could see right down into water plants under the ice actually moving around in the water flowing beneath the ice. One of the guys exclaimed, "This is so beautiful, I can see right down to the movement of water plants. It's as if we are skating on water!". Plonk! That's the moment he fell through and found himself standing hip deep in the cold water.