Try ecirhorse.org. Testing outlined along with research references.

Nancy C in NH
ECIR Moderator 2003
FACT: Standing on cement significantly reduces blood flow to the equine foot.
See R. M. Bowker, VMD, PhD, Nerves, Nerves, Nerves: Why Are They So Important To The Horse?  2013 NO Laminitis! Proceedings, www.ecirhorse.org
and
See RM Bowker, VMD, PhD, The Vascular Cushion Of The Frog What Does It Do?  2013 NO Laminitis! Proceedings, Equine Cushing's and Insulin Resistance Group Inc.