Association between long periods without high-speed ...
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| Title | Association between long periods without high-speed workouts and risk of complete humeral or pelvic fracture in Thoroughbred racehorses: 54 cases (1991-1994) |
| Author(s) | T. Carrier, L. Estberg, S. Stover, I. Gardner, B. Johnson, D. Read, A. Ardans |
| Journal | Journal of the American Veterinary Medical Association |
| Date | 1998 |
| Volume | 212 |
| Issue | 10 |
| Start page | 1582 |
| End page | 1587 |
| Abstract | Thoroughbred racehorses in California that were destroyed because of a complete humeral or pelvic fracture were investigated to determine whether a two-month or longer period without official high-speed workouts (lay-up) is associated with humeral or pelvic fracture. Age, sex, activity, number of lay-ups, number of days from a race or official timed workout to fracture, number of days from end of last lay-up to fracture, mean duration of lay-ups, and total number of days in race training were compared between horses with humeral fractures and horses with pelvic fractures. A case-crossover study was used to estimate relative risk for fracture of the humerus or pelvis occurring within hazard periods of 10 and 21 days following lay-up, compared with periods following more regular participation in official racing or timed workout events. Horses with pelvic fractures were more often female, older, and had 0 or ≥ 2 lay-ups. Horses with humeral fractures were typically 3-year-old males that had 1 lay-up. Horses with pelvic fractures had more total days in race training, fewer days from last exercise event to fracture, and a greater number of days from end of last lay-up to fracture than horses with humeral fractures. Return from lay-up was strongly associated with risk for humeral fracture during hazard periods of 10 and 21 days (relative risk = 71 and 45, respectively). Risk of humeral fracture may be reduced if horses are cautiously reintroduced into race training after lay-up. |
| ISSN | 0003-1488 |
Using APA 6th Edition citation style.
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