RoadBikeReview.com's Forum Archives - General


Archive Home >> General(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 )


knee pain(6 posts)

knee painBenLomond
Aug 12, 2003 2:20 PM
I have noticed the last two days pain below my knee cap.
There is no pain when riding, but after a couple hours at work standing up I start to feel it. Is this your typical over worked knee pain or should I be concerned?
re: knee painChen2
Aug 12, 2003 2:26 PM
Have you tried raising your saddle?
re: knee painBenLomond
Aug 12, 2003 2:46 PM
I think my saddle height is ok. I have looked at many sites that discuss fit and have taken measurements to confirm this.
Im no expert, but I play on RBRfunknuggets
Aug 12, 2003 2:59 PM
pulled from a reply to someone last week for knee pain that I wrote...the standard caveat.... blah blah, everyone is different... has different histories and injuries... lah de dah... hard to diagnose without seeing you and your fit, as there are tons of variables that could be contributing to your maladies.

The rule of thumb is this. Pain in the front, move saddle forward, Pain in the back, move saddle back. This is only a rule of thumb and the reason for this is the arbitrary "ideal" positioning of knee relative to pedal spindle at the 3'clock position. Body structure and shear forces can place too much stress at the front of the knee if the pedal extends too far out in front of the knee, so you would 'typically' get sub-patellar pain if this were the case.

Pain in the rear is 'typically' caused by a saddle that is too far forward, thus causing the greater load to occur at the rear of the stroke, thus a pulling motion that put too high a stress on the smaller muscles of the leg. However, too high a saddle can also cause this due to high calf strain.

Typically saddle height problems manifest themselves in more lateral type injuries, as it causes extreme angles at the joints, particularly knees, and hips,lower back, and sometimes ankles. So pain inside joints, tendonitis, and acl type chronic pain, etc often are a result of this.

I will add something, however, just because websites put you in the general vicinity of having the ideal saddle height, does not mean it works for you. Most of these get you in the "ballpark" at best. Try moving the saddle forward first, no more than 5 mm at a time.

So sayeth the funk.

Chris
Im no expert, but I play on RBRBenLomond
Aug 12, 2003 3:19 PM
thank you mr. nuggets. You may be on to something. Right now I have my seat way back to compensate for to short a stem/tt.
thanks
May try a longer stem...funknuggets
Aug 13, 2003 7:23 AM
I just watched the 1997 Liege-Bastone-Liege last night while on the trainer and you should see the stem length on some of those bikes, I would swear some of them have to be in the 150-160mm range. Crazy long. Cipo in 2002 Ghent was the same way. How come we don't see these in any of the retail catalogs? HaHa.

Chris