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question about slides

Posted: October 20th, 2006, 10:37 am
by hkp2ksk
assuming slides are set up level, how much C2 movement back and forth should there be on the slides?

tony

Posted: October 20th, 2006, 11:10 am
by PaulS
It will have a few dependencies, but the most closely related would be the distance that the seat travels along the rail of the Erg. I.e. The Erg really does revolve around you for the most part. The point at your illiac crest should be close to stationary as it is the Center of Mass which the revolving is taking place.

For myself the carriage moves from about 3 inches of the far end at the release, and perhaps 8-10inches from the opposite end at the catch.

CAUTION: Not for the faint of heart, though a reasonable example for illustrative purposes.

Posted: November 29th, 2006, 10:31 pm
by Morgan
Nice video, thanks.

the light brightness in the video cycles as if you have a direct-electric-generator on your flywheel connected to a 100 watt bulb off to the side. :lol:

Posted: November 29th, 2006, 11:12 pm
by PaulS
Morgan wrote:Nice video, thanks.

the light brightness in the video cycles as if you have a direct-electric-generator on your flywheel connected to a 100 watt bulb off to the side. :lol:
Yes, artifacts of a cheapo digital camera at work. A poor little 100watt bulb might be having potential problems with 590 avg watts being forced on it however. B)

Posted: November 30th, 2006, 10:27 am
by Afterburner
Paul, nice video, you're opening your back too soon tho :wink:

Heather

Posted: November 30th, 2006, 6:42 pm
by Snail Space
Hey, Paul, you're bringing your knees up before your hands get past them.

Posted: December 1st, 2006, 12:29 am
by Morgan
I am a fatboy rower and tried a set of slides on a model C once. IMO, it kinda forced PaulS' mechanics. I felt compelled to have a very similar technique even though it tried to do it "right" :?: . Maybe with regular slide use and a little coaching from an observer I could get it right....

Posted: January 2nd, 2007, 9:08 pm
by rah
So, I just unwrapped my slides, figuring I'd graduated to them by rowing an hour on Friday on my Model E, after a month of working up to it. I weigh 400lbs, now, more or less, from a starting weight of 418 in August. :-)

First thing I noticed was that, when I sat on it, the seat "moved" to the footrests rather forcefully, and I had to shove them away and keep them there. I figured that I was depressing things a bit in the middle :-), and everything "rolled" downhill. Didn't happen before without slides, though, so maybe it's F=MA leverage thing between the slides, or something, or maybe the floor's barely not level over the whole length of the erg-slide "system", as the seat, ever so slightly, wants to roll toward the front now. I've got the Model E between on the slides with about 18-20 inches between the two, determined by setting the erg's legs on the farthest out recepticle on each slide at the point where they, um, naturally repose, when left to their own stretchy devices.

Second thing I noticed, when I tried rowing to see what it felt like, was that I stayed put and the whole machine "moved" away from me on the slides, following my feet. I notice that that's, roughly, what the RowPerfect pictures seem to do, and, apparently, the .gif-movie above does, so I'm thinking everything's okay.

(Modulo technique, of course, which I'm sure is abysmal to the experts here, though I haven't tweaked anything yet; I tend to leave the straps off, have the damper at 3, etc., because of a 25-year problem with my back, my left leg being shorter than my right by a centimeter because of a teen-aged skiing accident, and I'm real careful by habit, now. My left knee's an osteoarthritic wreck: I had surgery to clean the 'fur' out of there in August, a long term result of the same leg-length thing, plus, um, other causes :-), and rowing seems to help that, too, so far. The left leg is weaker than the right one from limping around for most of the summer, and, among other things, :-), I got the erg to help me get that fixed. It's possible that it was a dislocation in the knee in April that started this whole thing to begin with, since the jock-doc who abraded the knee-fur said he was just making things pretty in there and not fixing any apparent cause of the kind of difficulty I came in with. Anyway, I'm certainly getting much more exercise now than if I walked, which is what I used to do before the knee thing, and, of course, running's impossible.)

So, that's my experience from putting things together tonight and plinking around with it a bit. Tomorrow, I'll actually row on the thing that way, and see what happens.