Okay, folks....I decided to have a little fun with this this morning and throw some simple math at it to try to at least put things in perspective. Now, for the pedantics in residence, I'm gonna qualify this first by saying that, since this is a website by and for Sasquatch enthusiasts (skeptic and believer alike), I'm basing this exercise on the supposed anatomical and physiological simililarites to humans that are currently attributed to Sasquatch. Primarily with regard to motion, or locomotion in this case.
The average WALKING stride of a human (male, 6 ft. tall) is 28.8". The average SPRINTING stride for a 6' tall male is 98.42". Once again, for the pedantics - http://www.livestron...gth-in-running/
So....the sprinting stride of a human is ~3.4 times the length of the walking stride. Simple enough. According to the BFRO, the average WALKING stride of a Sasquatch is 60.0". ( http://www.bfro.net/...sasq_traits.htm )
Since none of the trackways have been measured (that I know of) of a sprinting Sasquatch, for arguments sake I'm just going to apply the formula: 60.0" x 3.4 for a SPRINTING stride of 204.0"
Since the bulk of Sasquatch would indicate that, if they CAN sprint, they are likely only good for a short distance at top speed. I'm applying the logic here that most predatory animals are the same. Cheetah's can hit 60mph, but only for a short time. Lions and other predators suffer the same problem. Therefore I used the world record for the 60m sprint as a baseline. That record is 21mph. http://www.elitefeet...-can-humans-run
Now, assuming that a Sasquatch at full sprinting stride can move his/her legs at LEAST as fast as a human:
For man: Sprinting stride length of 98.42 = 20mph (I figured I'd round it off...it WAS a world record and not the norm)
Sasquatch: Sprinting stride length of 204.0 (or 2.07 times LONGER than a human) would give the Sasquatch a top speed over 60m of:
41.4 mph.
As for the mid-tarsal break, I would think if the musculature of the foot allowed it, the break might actually explain the smoothness with which Sasquatch are purported to run. If the foot is allowed to flex (in the center, as well as at the ankle) rather than rotate along the entire longitudinal axis (at the end, or the ankle) it would result in a more fluid motion. I liken it to rolling a ball rather than trying to flip a steel plate of the same size. This might actually increase the spring in the stride, increasing the stride length even more (resulting in an even higher top end).
Oh, and from the first website I linked: "A longer stride length is one factor involved in running speed."
DISCLAIMER: Just a little fun with numbers and an attempt at perspective. Not meant to be taken as fact. Your individual mileage and/or top speed may vary.