Originally Posted by Road Fan

I think this is a strong possibility. I usually interpret post-workout pain (especially after yoga but when I cycle or take long walks as well) as the breakdown of muscle which has been stressed by the workout, and which needs to recover and rebuild. A saddle too high could cause excessive calf flexing especially if there is that knee acceleration - your knee is trying to keep up with your foot to pedal contact point. I think of two approaches - reduce saddle height to make sure your foot contact remains easy. No knee straightening to stay in pedal contact, and no high knee pressure or foot pressure at bottom dead center. If you're trying to drive your foot through the pedal at bottom, your saddle needs to edge up bit by bit, but not so much that you start to rock your pelvis side to side. It can be a fine line.

Moving your saddle fore or aft can also subtly affect knee extension, as can adjusting saddle tilt, or moving your foot fore or aft on the pedal such as by a cleat adjustment.

My yoga teacher has suggested that after a session (90 minutes) we eat some protein (remember the old advice to eat a Clif bar within 30 minutes after a ride to improve recovery?) to help realize successive subtle increases in strength throughout your body. In yoga the strength improvement helps with balances such as the classic one-legged Tree Pose, and the bent-knee full-weight poses such as Warriors 1 through 3, not to mention the dozens of others. The added strength improves balance by strengthening all those little muscles in your foot and calf and that enables you to connect your drive forces into your pedals. It seems that protein supports regrowth of muscle, exchanging tired 70 year old muscle tissue for young, new muscle tissue (even for septuagenarians!). While I still get sore muscles, yoga is like cycling - when you achieve any given level, it only enables you to seek the next one.