I have recently incorporated some low cadence pedaling, 50-70 rpm, into my training. Normally I experience little to no knee pain but with the switch to lower cadence my knees have been hurting some during the ride and then for a few hours afterward. The next day I'm fine. The pain seems to be toward the front of my knee.
I have been taking daily glucosamine chondroitin supplements regularly as I'm 54 and figure I need all the help I can get.
I don't think my position, e.g. saddle height, is a factor as I've put in about 1,600 miles since January 1 of this year and did about 4,000 miles last year without any knee problems.
I would like to continue this low cadence training but I don't want to damage my knees. Any reasonable guidelines out there?