tag:blogger.com,1999:blog-35788819.post1799397870616030369..comments2023-10-12T00:18:31.629+11:00Comments on Alex's Cycle Blog: Left Right Out of BalanceAlex Simmonshttp://www.blogger.com/profile/00698332397074026424noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-35788819.post-6435519454960200512015-03-10T11:46:13.060+11:002015-03-10T11:46:13.060+11:00Hey Alex,
I was doing research on power balance a...Hey Alex,<br /><br />I was doing research on power balance and came across your post. You never mentioned what your usual power balance is while riding though. I have a 70/30 when going easy to 60/40 split at FTP or above. I've had the imbalance since I started riding but was finally able to quantify it with the Quarq. It's caused by nerve damage from a back injury, and my right quad/hamstring is atrophied when compared to my left. <br /><br />I'm not really sure where I'm going with this other than it was great to see that your FTP post amputation is higher than it was before the amputation and shows that I can train through this imbalance and hopefully strengthen my weaker leg to catch up. <br /><br />What is your imbalance and how have you seen it change throughout your training?YaniCanhttps://www.blogger.com/profile/11684944254045088869noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-81735534058530698192014-08-12T03:07:42.571+10:002014-08-12T03:07:42.571+10:00I have carbon crank arms on my BB30 cannondale. I ...I have carbon crank arms on my BB30 cannondale. I understand the stages power meter which I want is metal based. Would this be ok to have a left arm metal Stages, and a carbon right crank arm. Suppliers of Stages power meters have told me it is ok but are they just trying to get a sale. Thanks TonyAnonymoushttps://www.blogger.com/profile/03795042655616876607noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-85986890433461761492014-07-30T19:16:56.724+10:002014-07-30T19:16:56.724+10:00Hi Alex, have you (or anyone here) tested the Pion...Hi Alex, have you (or anyone here) tested the Pioneer PM? Could they be better in some regards? I know they intend to show a more comprehensive analysis of pedal strokes... But I haven't read anything about it other than their marketing stuff and don't know anyone who owns one...<br />Comments, experiences, or any guesses on them?Unknownhttps://www.blogger.com/profile/12210754510100174346noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-2667201093270163142013-11-10T15:28:40.392+11:002013-11-10T15:28:40.392+11:00- developing accurate high frequency sampling of c...- developing accurate high frequency sampling of crank rotational velocity to match torque sampling<br /><br /><br />YES!bubblegum castinghttps://www.facebook.com/bubblegumcastingnoreply@blogger.comtag:blogger.com,1999:blog-35788819.post-27618990636333615382013-11-07T14:58:55.806+11:002013-11-07T14:58:55.806+11:00In my opinion, I'd rather power meter manufact...In my opinion, I'd rather power meter manufacturers work on the following ahead of power balance:<br /><br />- developing accurate high frequency sampling of crank rotational velocity to match torque sampling<br /><br />- sorting out data anomalies and ghost power readings<br /><br />- address zeroing issues with certain combinations of power meters and head units<br /><br />That's speaking as a guy with some leg chopped off who really didn't care about left-right balance, just what it was I could do with the legs I had left :)Alex Simmonshttps://www.blogger.com/profile/00698332397074026424noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-62557602027040838442013-11-06T10:58:13.112+11:002013-11-06T10:58:13.112+11:00Exactly: no reason Vector can't do what the cr...Exactly: no reason Vector can't do what the crank-based units are doing, assuming they can tell crank angle to sufficient precision. It's perhaps unfortunate they are binned under the same field.<br /><br />The question is then: is one more actionable than the other? Are either actionable at all? If I crash on my right side (I did) and when I start riding again, I notice my right side hurts more than my left (it did), then it seems interesting to me whether I am doing less work with my left side than my right relative to baseline. Perhaps such a measure is a metric for recovery. Or if I change my bike fit and my balance moves further from 50-50, perhaps that is interesting and actionable. Which of the methods is a better indicator of these things I won't say, but the Vector method is more intuitive.djconnelhttps://www.blogger.com/profile/01484858820878605035noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-3921102572081278552013-11-06T10:20:00.271+11:002013-11-06T10:20:00.271+11:00Good stuff.
Fwiw, this topic was actually discuss...Good stuff.<br /><br />Fwiw, this topic was actually discussed in depth at the ANT+ Symposium about a month ago during a private power meter session with all the PM companies present, and then some further follow-up sessions. Specifically around the fact that there's differences in the fact that (for example) P2M and Vector are measuring different things but being funneled into the same metric.<br /><br />As pointed out then though, it doesn't actually mean that P2M/Quarq/etc's specific measurement is 'bad', it's just 'different' in that it's measuring something else. Which may be just as useful in a different context.<br /><br />The discussion has now moved on to how better to define these metrics such that what P2M/Quarq/etc are measuring is called XYZ, while what Vector is measuring is called ABC. And ultimately, units like Vector could well measure both ABC and XYZ.<br /><br />There was clear consensus in the room that the naming of these metrics (whatever they end up being) will be critical to making them easy to understand.Rainmakerhttps://www.blogger.com/profile/00371545851492880386noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-64294869588137431312013-11-05T07:35:37.744+11:002013-11-05T07:35:37.744+11:00Thanks for this analysis. I'm currently testin...Thanks for this analysis. I'm currently testing Garmin pedals and doing also some comparison with a Power2max; some graph, data and comments (albeit in Italian) here: http://www.massarob.info/2013/10/garmin-vector-il-test-giorno-per-giorno.htmlMassa Robertohttps://www.blogger.com/profile/12273615128532947690noreply@blogger.comtag:blogger.com,1999:blog-35788819.post-67423311426269301622013-11-05T04:31:27.736+11:002013-11-05T04:31:27.736+11:00Yet again, you take a complicated topic (for me, a...Yet again, you take a complicated topic (for me, anyway) and explain it very clearly. Thank you!richard westwoodhttps://www.blogger.com/profile/03322130733351072204noreply@blogger.com