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[RC] Kerry Ridgway's clarification re. CRI - Lari Shea(Kerry does not regularly read ridecamp, so I forwarded to him
Merryben's synopsis of the history of the CRI...)
Lari... you might pass this on to Ridecamp.
MB's statement regarding CRI is totally inaccurate. I am unaware of
any human study in 1939.(Would love to see it if it exists). Murray
Fowler was indeed head vet for my first Tevis Vetting (1967), however no
data was collected on this subject and no discussion of this topic ever
occurred with Murray. .
Jim Steere (a few years down the line) developed a system of taking
the pulse (with stethoscope) every 5 minutes and then computing % of
recovery. It was good, but cumbersome and impractical.
When the first Heart Rate Monitors came out (Eq -B) I got one and
started collecting data on my own horse. He could return to a 48 heart
rate within 30 minutes even when very fatigued, but I found that if he
trotted any significant distance his pulse would again climb and be very
slow to return when he was fatigued, but not when he was fresh and felt
good to go on. I settled on some figures and then tried them on an NATRC
ride. The results provided an excellent bell curve with fit horses
recovering from trot out within one minute from start of trot out. The
horses that were exhibiting exhaustion were not able to recover to a base
line pulse in that time frame.
The next trial was at a Race of Champions (I don't remember which
year) held at John and Bobbie (Raccine) DePietra's in Castlerock
Colorado. Susan Brannon (now Susan Gibson) allowed us to test it, but it
was not used as a test parameter but was not used as part of the protocol
of fit to continue. Dane Frazier noted that we picked up a horse that did
not meet the CRI, but looked excellent. Within ten minutes the horse tied
up and required treatment. We then tested it at the Levi Ride and Tie
with good success..
In all those tests it proved to be a valid and valuable parameter
and we started using it on many rides. Now, the rest is history. Murray
Fowler ( a great veterinarian) had no knowledge of nor part to play in
the development. Jim Steere deserves credit for his original concept and
stimulated my interest. It was not until we were able to look at data by
use of Heart Rate Monitors that the concept became a real
possibility.
Kerry Ridgway, DVM
"What unites us all is a love of the out-of-doors, a spirit of adventure, and a passion for horses!" Lari Shea Ricochet Ridge Ranch 24201 North Highway One Fort Bragg, CA 95437 International Riding Vacations Akhal Teke and Russian Orlov/cross horses for sale
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