Relationship between Thoroughbred workloads in racing and the fatigue life of equine subchondral bone.

ABSTRACT: Fatigue life (FL) is the number of cycles of load sustained by a material before failure, and is dependent on the load magnitude. For athletes, 'cycles' translates to number of strides, with load proportional to speed. To improve previous investigations estimating workload from distance, we used speed (m/s, x) per stride collected using 5 Hz GPS/800 Hz accelerometer sensors as a proxy for limb load to investigate factors associated with FL in a Thoroughbred race start model over 25,234 race starts, using a combination of mathematical and regression modelling. Fore-limb vertical force (NKg^-1) was estimated using a published equation: Vertical force = 2.778 + 2.1376x - 0.0535x². Joint load (σ) was estimated based on the vertical force, scaled according to the maximum sp

SUBMITTER: Morrice-West AV 

PROVIDER: S-EPMC9262984 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature