https://neillsbikefit.com.au/?page_id=268I put it in my favourites, and I can get in. Link above is from my favourites.
I can get it by googling** Neils bike fit as well.
Jonathan, you sound like somebody with specialist knowledge. I originally trained as a med. lab. technician, so any anatomy is simply what I have picked up along the way.
Agreed, hamstrings flex the knee....I wasn't as much objecting to that as objecting to the omission of the major function of the hamstrings, which is to extend the hip. (isn't it?) By the same token, if they are going to include hamstrings flexing the knee as part of pulling the pedal up, then why not quads. flexing the hip as part of the same process?
I don't think I pull up on the cleats at all. I can for a short period push the pedal over the top (quads) and pull it back at the bottom (hams.)
To be fair, Neils bike fit has the best discussion I have found on what he calls "Preferential Fatigue"
I crashed and burned just about a year ago
https://forum.cyclinguk.org/viewtopic.php?f=1&t=131678&hilit=hamstrings.
Short version is I moved my cleats back (feet forward) to stabilise my feet on the pedals, and was surprised to find doing that loaded my quads; equally surprised to find that moving my saddle back evened up the work of the muscle groups. I'm still staggered that such small alterations to riding position alter the way in which I use different muscle groups.
**actually not Google ...the icon is a blue lower-case "e"....sorry to be so technical!