Correlation of racing performance with fitness parameters after exercise tests on treadmill and on track in Standardbred racehorses

Casini, Lucia; Greppi, G.F.

doi:10.21836/pem19960421

Cited by 16 publications

(23 citation statements)

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“…The v 4 has long been used to compare sport horses and examine the effect of training Wilson et al, 1983;Straub et al, 1984;Auvinet et al, 1991;von Wittke et al, 1994). Also, good relationships have frequently been described between v 4 and variables of performance such as earnings, placings, and winnings (Demonceau, 1989;Erickson et al, 1990Erickson et al, , 1991Galloux, 1991;Casini and Greppi, 1996;Couroucé, 1997;Ponchard, 1998;Lindner, 2010). Only more recently have studies been done to examine the effects of conditioning horses with the speed of exercise guided by different blood [LA] obtained with a SET of similar prescription as in this study (Werkmann et al, 1996;Gansen et al, 1999;Trilk et al, 2002;Lindner et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Maximal lactate steady state during exercise in blood of horses1

Lindner¹

2010

Journal of Animal Science

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The speed producing the maximal lactate steady state (maxLASS) is supposed to be the optimal speed to condition for endurance. The maxLASS was defined as the maximal speed at which the blood lactate concentration ([LA]) between the 5th and the 25th min of continuous exercise did not increase by more than 1 mmol/L. According to the aerobic-anaerobic lactate threshold concept determined in humans, maxLASS corresponds to v(4) [speed in a standardized exercise test (SET) shown to produce an [LA] of 4 mmol/L; generalized to v(i) for the speed producing an [LA] of i mmol/L]. Four Thoroughbreds were submitted to a treadmill-based SET to determine their blood lactate-running speed (BLRS) relationship and calculate the individual v(1.5), v(2), v(2.5), v(3), and v(4) values (velocities run under defined conditions inducing 1.5, 2, 2.5, 3, and 4 mmol/L of blood LA). Afterward, horses ran on the treadmill for 40 min at their v(1.5), v(2), and v(2.5) every 3 d. Another 14 horses were submitted to SET in the field to determine their BLRS relationships and to calculate their v(2). The day after the SET, these horses ran once between 15 and 30 min at their v(2). In the horses that ran on the treadmill, maxLASS only occurred when running at their v(1.5). Blood [LA] did not increase by more than 1 mmol/L between the 10th min and the end of exercise for all the horses that ran in the field at their v(2.) These data indicate that maxLASS of horses is not greater than v(2) and therefore less than in running humans.

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Section: Discussionmentioning

confidence: 99%

Maximal lactate steady state during exercise in blood of horses1

Lindner¹

2010

Journal of Animal Science

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“…Estimations of V2w using a standardised treadmill exercise test proved useful in the evaluation of training effects in the normal Thoroughbred racehorse (Rose et al 1990), and there was a significant correlation between the actual running speed and V~M ) (Harkins et al 1993). In addition, the measurement of V2w under field conditions have been reported mainly in Standardbreds (Wilson et al 1983;Valette et al 1992Valette et al , 1996Dubreucq et al 1995;Casini and Greppi 1996). However, the practical application of V2, -, , , for the evaluation of training effects in the young Thoroughbred has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Application of V₂₀₀ values for evaluation of training effects in the young Thoroughbred under field conditions

Kobayashi¹,

Kuribara²,

Amada³

1999

Equine Veterinary Journal

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“…Couroucé (1999) found that mean V La4 was significantly higher in well performing Standardbred trotters than in poor performers. Casini and Greppi (1996) in an investigation of treadmill versus track for assessing fitness parameters in Standardbred horses found that both modes of assessment were useful in assessing fitness with V La4 having a good negative correlation with race times. In the present study for horses at stable A, there was a significant association between V La4 and log lifetime earnings (r = 0.51, P = 0.053) and log average $/start (r = 0.54, P = 0.036), and an almost significant association with number of race wins (r = 0.30, P = 0.06); however, there was no significant correlation for the same variables at stable B.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have examined metabolic response to both submaximal and maximal exercise (Asheim et al 1970;Lindholm and Saltin 1974;Essén-Gustavsson et al 1997;Persson 1997) and factors in relation to estimation of performance potential (Ronéus et al 1994(Ronéus et al , 1999Rasanen et al 1995;Casini and Greppi 1996;Couroucé et al 1997) in Standardbred trotters. The assessment of performance capacity has been evaluated traditionally within the laboratory environment predominantly because of the difficulty in controlling the different variables and capacity for reproducing the same conditions in follow-up testing.…”

Section: Introductionmentioning

confidence: 99%

Metabolic responses to submaximal field exercise tests and relationships with racing performance in pacing Standardbreds

Davie

Priddle

Evans

2002

Equine Veterinary Journal

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SummaryThis study was undertaken to invesigate the application of submaximal field tests in assessment of performance. A submaximal field exercise test consisting of 2 bouts of pacing for 1600 m, with 5 min rest or walking between runs was performed on Standardbred racehorses at 2 training centres (A and B). Performance indices were compiled for each horse: number of race starts, number of race wins, number of race placings (1, 2 or 3), and lifetime earnings. Regression analysis was conducted to describe the relationship between plasma lactate concentrations and speed for tests one, 2 and pooled results. Using the regression equation, observed (measured) minus expected (predicted) (O-E) lactate concentrations for tests were calculated and plotted against performance indices to determine their relationship. For stables A and B the association between lactate and velocity for the 2 runs was best described by the exponential equations: y = 0.0014 e07306x (r 2 = 0.54, P<0.001) and y = 0.002 e06812x (r 2 = 0.42, P<0.001), respectively, where y is lactate concentration (mmol/l) and x is speed (m/s). For the pooled results for heat 1 and heat 2 for stables A and B the relationship between lactate and velocity was best described by an exponential equation y = 0.0016 e07117x (r 2 = 0.47, P<0.001). This study found no relationship between (O-E) and performance indices (number of race wins, number of race placings, lifetime earnings and average $/start) at stables A or B for test run 1, 2 or pooled lactates. At stable A, there was a significant association between V La4 and log lifetime earnings (r = 0.51, P = 0.053) and log average $/start (r = 0.54, P = 0.036). There were no significant correlations at stable B. In conclusion a 2-step determination method of V La4 is a possible means for studying limits to performance in pacing Standardbred racehorses.

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Correlation of racing performance with fitness parameters after exercise tests on treadmill and on track in Standardbred racehorses

Cited by 16 publications

References 0 publications

Maximal lactate steady state during exercise in blood of horses1

Maximal lactate steady state during exercise in blood of horses1

Application of V₂₀₀ values for evaluation of training effects in the young Thoroughbred under field conditions

Metabolic responses to submaximal field exercise tests and relationships with racing performance in pacing Standardbreds

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Correlation of racing performance with fitness parameters after exercise tests on treadmill and on track in Standardbred racehorses

Cited by 16 publications

References 0 publications

Maximal lactate steady state during exercise in blood of horses1

Maximal lactate steady state during exercise in blood of horses1

Application of V200 values for evaluation of training effects in the young Thoroughbred under field conditions

Metabolic responses to submaximal field exercise tests and relationships with racing performance in pacing Standardbreds

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Application of V₂₀₀ values for evaluation of training effects in the young Thoroughbred under field conditions