In article <[email hidden]>,
[email hidden] writes:
|>
|> > You could try a traditional upright position, with a much lower
|> > cadency, and see if that helps.
|>
|> I suffer from slight knee pain, never very serious, but it rarely goes
|> away completely. GP summarily diagnosed it as arthritis, told me to
|> stop running, which improved things. Swimming crawl makes it worse,
|> going for a 14 mile hilly walk got rid of it completely for a while,
|> so I'm not entirely convinced about the arthritis. Glucosamine did
|> nothing for me.
Possibly cartilage damage, which is my problem. It is VERY common,
and is typically caused by abuse of the knees. In my case, it was
caused by the torture, sorry, PT and punishments at school - and,
MOST unusually, has got gradually better from age 20 to 60.
|> Can you explain the low cadency bit? I ride with saddle high enough to
|> more or less fully straighten my leg and this certainly helps. My
|> cadency is low (prob. 50 - 60 if I'm not consciously trying) and I've
|> been trying to increase it for a while, with moderate success, but am
|> getting the feeling that this makes my knees worse. I thought high
|> cadency was a Good Thing - more strokes, less power per stroke, less
|> damage.
You have been reading the racing propaganda! Yes, I have exactly the
same experience.
You need a high cadency to handle a racing crouch - for reasons that
I would rather skip. If you are riding traditionally, however, the
higher the cadency the more you are likely to 'jerk' - bad news. If
you look at walkers and runners, you will find that they use a cadency
of 30-60, and vary the stride length. This is what we have adapted to
over 3 million years of being an upright biped.
The matter of power per stroke is obvious [censored] (in an absolute sense),
if you consider a Sherpa or Para lifting a total of 150 Kg up a steep
hill. Even I, when hill walking, lift 100+ Kg. Knee damage isn't a
problem going UP, but the cadency is typically only 30 - and may be
less - and the walker straightens the knees every stroke.
|> BTW I'm 6' 2 and have no problem getting the saddle high enough.
'Tain't typically the saddle, but the handlebars. It you don't get
very close to upright, you can't straighten your leg because of
hamstring length issues. A semi-crouch also causes other problems,
which are irrelevant here.
Regards,
Nick Maclaren.