Racetrack Traction Assessment by Penetrometer Part II. Application of the Model

Murphy, J. W.; Field, Tracy-Lynn; Thomas, V J

doi:10.1300/j099v01n04_05

Cited by 12 publications

(8 citation statements)

References 1 publication

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“…It is believed that most tracks within New Zealand are of an oval shape and approximately 1 mile (1,600 m) in circumference. However, there are limited data published on the variation in track shape, dimensions, or racetrack surfaces within New Zealand [13].…”

Section: Introductionmentioning

confidence: 99%

Profile and Surface Conditions of New Zealand Thoroughbred Racetracks

Rogers¹,

Bolwell²,

Gee³

et al. 2014

Journal of Equine Veterinary Science

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Section: Introductionmentioning

confidence: 99%

Profile and Surface Conditions of New Zealand Thoroughbred Racetracks

Rogers¹,

Bolwell²,

Gee³

et al. 2014

Journal of Equine Veterinary Science

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“…LP delta and CIH 23 displayed comparable correlations to the four OBST measurements, in particular, the cushioning and impact firmness. A key differentiator is that while the CIH has been used extensively in human sport applications, the LP has already been shown to be well-suited for race day measurements at turfgrass horse racing surfaces in New Zealand [ 18 , 29 , 30 ]. Furthermore, as these datasets were collected over a period of many years, they have shown the LP to be capable of assessing day-to-day variations in the racing surface, which is consistent with prior research [ 18 , 29 , 30 ].…”

Section: Discussionmentioning

confidence: 99%

“…Though there is no international standard for this device, it is commonly used in horse racing as it was developed for France Galop’s Longchamp Racecourse and it is used on a daily basis in a number of racing jurisdictions. What makes the Longchamp penetrometer unique among the other tools in this study is published research which correlates these measurements to both race times [ 29 , 30 ] and injuries [ 18 ] on turf racing surfaces. Unlike the track condition ratings used in most other racing jurisdictions, the penetrometer has been used to directly produce track ratings.…”

Section: Methodsmentioning

confidence: 99%

A Comparison of Devices for Race Day Characterization of North American Turfgrass Thoroughbred Racing Surfaces

Schmitt,

Sanderson,

Rogers

et al. 2023

Animals

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Both pre-race meet and daily turf surface condition measurements are required by regulations adopted as part of the Horseracing Integrity and Safety Act (HISA). The Orono Biomechanical Surface Tester (OBST) is the primary device used for characterizing a racing surface and is used for the pre-meet inspections. Tools that are better suited for the daily testing of turf surfaces are also needed to meet the new federal regulations. The purpose of this study was to compare five simple tools commonly used in turf applications to the OBST. Data were collected with each of the six devices at plots chosen to approximate the current and potential compositions of North American turf racetracks. Correlations and linear regression models were then established between the simple tool measurements and the parameters measured by the OBST. The moisture probe was found to be the primary device for race day characterization due to its strong correlation to OBST measurements. The Longchamp Penetrometer is also prioritized for daily measurements due to its established correlation to horse performance and injuries. The Clegg Impact Hammer provides further improvement of the linear regression model. The Turf Shear Tester and GoingStick® were not found to correlate well to the biomechanically based device.

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“…Stipendiary steward reports and official race start records were merged by horse name and race date to provide information about track condition (fast, good, dead, slow, heavy), horse age, and other relevant information. Track conditions were defined based on the penetrometer reading as “fast” (penetrometer reading 0.5–1.9), “good” (penetrometer reading 2.0–2.5), “dead” (penetrometer reading 2.6–3.5), “slow” (penetrometer reading 3.6–4.5), and “heavy” (penetrometer reading 4.6+) [ 6 ]. Race distance groups were defined based on race distance as “sprinter” (≤1400 m), “miler” (1401–1799 m), “middle distance” (1800–2099 m), and “stayer” (>2100 m).…”

Section: Methodsmentioning

confidence: 99%

Race-Level Reporting of Incidents Using an Online System during Three Seasons (2019/2020–2021/2022) of Thoroughbred Flat Racing in New Zealand

Gibson

Legg

Gee

et al. 2022

Animals

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In the 2019/20 Thoroughbred racing season, the paper-based reporting process of stipendiary steward reports was upgraded to an online system (‘Infohorse database’) to allow for the rapid entry of precise event and injury data. The objectives of this study were to describe the incident and non-incident examinations during the 2019/20, 2020/21, and 2021/22 Thoroughbred flat racing seasons in New Zealand and describe the primary injury and reporting outcomes. The introduction of the online system was associated with fewer miscoding events with horse identification (0.1%). An improvement in the definition and prompts in reporting within the online system compared with the previous paper-based system resulted in a greater frequency of non-incident examinations being undertaken. The increased frequency of reporting the clinical outcome, ‘no observable abnormalities detected’ (NOAD), demonstrates the role of stipendiary stewards to carry out routine screening. The frequency of most clinical findings, such as musculoskeletal fractures (0.5 per 1000 starts, 95% CI = 0.3–0.6), remained similar compared to previously reported data using the paper-based system. The online system provided a more structured dataset compared with the paper-based system, making it a useful tool for the monitoring of incidents, injuries, and potential risk factors within Thoroughbred racing in New Zealand. Therefore, evidence-based changes to the management and structure of racing can be undertaken to ensure the industry meets its duty of care for racehorse and jockey welfare.

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Racetrack Traction Assessment by Penetrometer Part II. Application of the Model

Cited by 12 publications

References 1 publication

Profile and Surface Conditions of New Zealand Thoroughbred Racetracks

Profile and Surface Conditions of New Zealand Thoroughbred Racetracks

A Comparison of Devices for Race Day Characterization of North American Turfgrass Thoroughbred Racing Surfaces

Race-Level Reporting of Incidents Using an Online System during Three Seasons (2019/2020–2021/2022) of Thoroughbred Flat Racing in New Zealand

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