Tuesday, March 23, 2010

Jerked around by my treadmill

Today's run (treadmill): 2.3 miles at 9:12/mile

The hill work I did over the weekend caused great tightness in my leg muscles on Monday. This morning that tightness was even more pronounced so I decided that the "hair of the dog" approach with more hill climbs would be the best way to deal with it. I had played briefly with the inclines on the new treadmill on Saturday and thought about running one of the built-in programs that included variable elevations. I had not read the treadmill's instructions to learn how to start a speed or elevation program so after a few tries I gave up and used the manual method to set my inclines. A few minutes into my run I began noticing that the tread belt slipped every twenty seconds or so. These slips felt as though the belt was jerking and suddenly pulling forward for a second. It wasn't so pronounced that it threw me off balance but it was concerning. The worst part was waiting for the next slip - nothing like feeling stress while running!

I decided to finish my run despite this annoying problem. I found the incline feature useful and varied the incline between 2% and 4% but backed off on that when the belt slippage became pronounced. The slipping and jerking may be related to inclines because it had not happened before I had used that feature. Unfortunately the slipping happens without an incline so there's no safe condition although it seems to stabilize when the speed is lessened. I sent a note to Sole and I'll report on what happens. It's really too bad, prior to this problem I thought the F63 exceeded expectations.

2 comments:

  1. your treadmill's pretty new right? My guess is that as the belt breaks in it stretches a little bit which causes the slipping... I'm also guessing there should be some kind of wench turned spring adjustment you can use to tighten it back up...

    Like I said, totally guessing on that, because I've never owned a treadmill. But I am an engineer, so that's the way I would have designed it...

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  2. EZ - Thanks, your theory makes sense and has alleviated some anxiety. I'm waiting to see how Sole responds. I'm hoping they say exactly what you say, that it's part of break-in process.

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