Rollo, your brilliant treatise encompassing all that you know about equine orthopaedic medicine speaks for you:
And for those that don't want to stay as dense as Rollo about why "the good fast ones" seem to break - it's because they do. They have to, indeed, run fast to blow apart; and fast horses have different types of injuries than slower horses.
Even if Rollo can't strain his brain enough to believe a basic concept every veterinarian learned second year of vet school is true, and he is more worried about peeing on trees than admitting he's clueless about a basic racehorse veterinary truism, let alone learn something about horses and injury.
For example, one of many on this subject:
Quote:
Bone: Official Journal of the International Bone and Mineral Society Received 7 December 2005; received in revised form 9 May 2006; accepted 25 May 2006. published online 22 August 2006. Verhayen, Price, Lambden, Wood
Abstract
In order to gain insight into those training regimens that can minimise the risk of fracture in athletic populations, we conducted a large epidemiological study in racehorses. Thoroughbred racehorses provide a suitable model for studying fracture development and exercise-related risk factors in physically active populations. They represent a homogeneous population, undertaking intensive exercise programmes that are sufficiently heterogeneous to determine those factors that influence injury risk. Daily exercise information was recorded for a cohort of 1178 thoroughbreds that were monitored for up to 2 years. A total of 148 exercise-induced fractures occurred in the study population. Results from a nested case–control study showed a strong interactive effect of exercise distances at different speeds on fracture risk. Horses that exceeded 44 km at canter (≤14 m/s) and 6 km at gallop (>14 m/s) in a 30-day period were at particularly increased risk of fracture. These distances equate to ca. 7700 bone loading cycles at canter and 880 loading cycles at gallop. Fifty-six fractures occurred in the subset of study horses that were followed since entering training as yearlings, when skeletally immature (n=335). Cohort analysis of this data set showed that, in previously untrained bones, accumulation of canter exercise increased the risk of fracture (P≤0.01), whereas accumulation of high-speed gallop exercise had a protective effect (P<0.01). However, increasing distances at canter and gallop in short time periods (up to one month) were associated with an increasing fracture risk. All training exercise involves a balance between the risk of fracture inherent in exposure to loading and the beneficial effect that loading has by stimulating bone cells to produce a more robust architecture. Results from our study provide important epidemiological evidence of the effects of physical exercise on bone adaptation and injury risk and can be used to inform the design of safer exercise regimens in physically active populations.
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But maybe you'd better check the liver, Rollo. Of course, if you want to discuss bone-loading cycles or Wolff's Law, or what type of horse gets a butterfly fracture of the cannon versus a spiral fracture, speak up and add your brilliant knowledge regarding how and why horses get injured to the list. We are awaiting your instruction. Oh, wait - for you, that consists only of listening to the popular trainer rumors on blog sites. Brilliant!