Sadie has brought a few pairs of shoes into the lab, and has set up an experiment to determine which pair provides an experience most similar to barefoot pedal pumping. She begins by working the four pedals with her very limber toes, and then tries a pair of her favorite heels, which predictably, fail to provide adequate flexibility for her toes. A pair of mid-heeled wedge sandals fare better, but the real contest is between two pairs with nearly flat heels and very flexible soles. The first of these - a pair of strappy semi-open sandals, works very well. But the second - a pair of very bar... Show more