I'm happy to look at your work in progress today. Just ask!
Here's a cool timing tool - tap to get the beats per minute or frames per second:
Here are a couple of great spots to find live-action reference:
Treadmill Walk: Dude
"Endless Reference"'s You Tube channel (also see sidebar link -->)
This is a little nsfw (not really) but it's so amazing it really belongs here. Felix Sputnik has absolutely nailed the style and timing of animated runs. Lots to learn from here. :D
Animated walks and runs from Felix Sputnik on Vimeo.
There are lots more great examples of hand-drawn cartoon walks here:
WALK CYCLE DEPOT