Originally Posted by
xkjzix
It's not elementary; I'm looking beyond the obvious. Things in your body can be wrong apart from the foot. Yes, the interface is the obvious choice , but faulty action up the kinetic chain can happen as well and effects the rest of the body. Every faulty joint effects the joint above and below it. To limit your focus on the foot is incredibly closed minded and quite frankly elementary.
It starts with the connection to the bike which is the foot. Foot alignment ordains knee alignment. The asymmetric human body attempts to acclimate...sometimes with limited success to the unyielding symmetry and repetition of the machine which is unforgiving in its consistency. Countless repetition exposes lack of agreement and injury. Load of the feet changes alignment if unsupported. Angle of foot platform affects knee tracking and alignment.
There is significant cause and effect between foot support, alignment and knee health. If you were to query a focus group of top cycling fitters throughout the industry, that would be their response. You can hypothesize all kinds of different cause and effect scenarios but it starts with the foot connection to the machine which is the focus of this thread...not your unrelated and extraneous postulations.