Validation of masks for determination of V̇O<sub>2</sub>max in horses exercising at high intensity

Sides, R. H.; Kirkpatrick, Robert; Renner, E.; Gough, K. F.; Katz, Lisa; Evans, David L.; Bayly, W. M.

doi:10.1111/evj.12711

Cited by 17 publications

(11 citation statements)

References 30 publications

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“…Horses completed a standardized warm‐up that consisted of an 800 m trot and 800 m canter. A mask capable of accurately measuring

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O 2 peak, airflow, and tidal volume on a breath‐by‐breath basis under field conditions was then applied, and horses completed 400 m at a canter followed by 600 m at maximal intensity. Calibration of the system (flowmeter and gas analyzer) was conducted as previously reported before and after each horse was exercised.…”

Section: Methodsmentioning

confidence: 99%

“…There was a nonsignificant increase in _ V O 2 peak of 6.3 ± 4.5 mL(min.kg) −1 from day 0 to day 16 (P = . 19). There was also a near-significant increase in _ (Table 1).…”

Section: Peak Exercise Testmentioning

confidence: 99%

“…Increased resistance to airflow induced by the masks required by the procedure renders the

\dot{V}

O 2 peak measurements unreliable and presented unacceptable risks to the horses . Recently a mask has been developed and validated that can accurately measure

\dot{V}

O 2 peak, airflows, and tidal volumes on a breath‐by‐breath basis under field conditions . The overall aim of our study was to evaluate the hypothesis that treatment targeting lung inflammation improves

\dot{V}

O 2 peak in horses with mild asthma.…”

Section: Introductionmentioning

confidence: 99%

“…16 Recently a mask has been developed and validated that can accurately measure _ V O 2 peak, airflows, and tidal volumes on a breath-by-breath basis under field conditions. 19 The overall aim of our study was to evaluate the hypothesis that treatment targeting lung inflammation improves _ V O 2 peak in horses with mild asthma. Our specific objective was to determine whether dexamethasone, salbutamol, and a reduction in ambient PM 2.5 increase _ VO 2 peak in the field in horses with mild asthma.…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Bond

Greco‐Otto

MacLeod

et al. 2020

Veterinary Internal Medicne

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Background Mild asthma in horses decreases racing performance and impairs gas exchange. The efficacy of treatment on performance is unknown. Hypothesis Treatment targeting lung inflammation improves V˙O2peak in horses with mild asthma. Animals Thoroughbred polo horses (n = 12) with smoke‐induced mild asthma. Horses were exposed to increased ambient particulate matter (35.51 μg/m3 [PM2.5]; day mean, centrally measured) from day −33 to 0, from bushfire smoke (natural model). Methods Prospective, randomized, placebo‐controlled, double‐blinded clinical trial. All horses completed 3 V˙O2peak tests, measuring aerobic and anaerobic variables: day 0 ‐baseline; day 16 ‐after dexamethasone (20 mg IM q24h; DEX, n = 6) or saline treatment (SALINE, n = 6), under improved ambient PM2.5 concentrations (7.04 μg/m3); day 17‐15‐30mins after inhaled salbutamol (1500 μg). Bronchoalveolar lavage and mucus scoring were performed on day −8 and day 20. Linear mixed effects models were used to examine the effects of timepoint and treatment group on BAL differential cell counts, mucus scores, aerobic and anaerobic variables. Results Horses’ mucus scores improved significantly from day −8 to 20 by 1.27 ± .38 (P = .01). There was a significant increase in V˙O2peak of 15.5 ± 4.0 mL(min.kg)−1 from day 0 to 17 (P = .002), representing an average (mean) increase in V˙O2peak of 13.2%. There was no difference in V˙O2peak between treatment groups (SALINE versus DEX) at any timepoint. Conclusions and Clinical Importance This study highlighted the key role of improved air quality on functionally important airway inflammation. Evidence provided is central to increasing owner compliance regarding improved air quality for the treatment and prevention of mild asthma.

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“…Horses completed a standardized warm‐up that consisted of an 800 m trot and 800 m canter. A mask capable of accurately measuring

\dot{V}

Section: Methodsmentioning

confidence: 99%

“…There was a nonsignificant increase in _ V O 2 peak of 6.3 ± 4.5 mL(min.kg) −1 from day 0 to day 16 (P = . 19). There was also a near-significant increase in _ (Table 1).…”

Section: Peak Exercise Testmentioning

confidence: 99%

“…Increased resistance to airflow induced by the masks required by the procedure renders the

\dot{V}

O 2 peak measurements unreliable and presented unacceptable risks to the horses . Recently a mask has been developed and validated that can accurately measure

\dot{V}

\dot{V}

O 2 peak in horses with mild asthma.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Bond

Greco‐Otto

MacLeod

et al. 2020

Veterinary Internal Medicne

Self Cite

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“…V̇O 2 max determined under field conditions in horses has been reported; however, the mask design was thought to restrict ventilation 19. A new ergospirometry system has recently been designed and validated20 and was used in the present study to evaluate V̇O 2 and ventilation.…”

Section: Introductionmentioning

confidence: 99%

Conditioning equine athletes on water treadmills significantly improves peak oxygen consumption

et al. 2020

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Equine water treadmills (WT) were initially designed for rehabilitation of musculoskeletal injuries, but are also commonly used for conditioning sport horses, however the effects are not well documented. The purpose of this study was to test the effect of an 18-day WT conditioning programme on peak oxygen consumption (V̇O2peak). Nine unfit Thoroughbreds were used in a randomised controlled trial. Six horses worked daily for 18 days in stifle-height water (WT group), while 3 control horses worked without water (dry treadmill group (DT)). Preconditioning and postconditioning maximal exercise racetrack tests (800 m) were performed using a portable ergospirometry system. Measured outcomes were V̇O2, tidal volume, minute ventilation, breathing frequency, heart rate, blood lactate and instantaneous and average speed. The workload as assessed by V̇O2 was 21.7 per cent of preconditioning V̇O2peak values for WT horses. V̇O2peak on the racetrack increased by 16.1 per cent from preconditioning to postconditioning in the WT horses (P=0.03), but did not change in the DT horses. Therefore, exercising horses in high water heights may improve conditioning.

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Diseases of the Respiratory System

Wilkins¹,

Lascola²,

Woolums³

et al. 2020

Large Animal Internal Medicine

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Validation of masks for determination of V̇O₂max in horses exercising at high intensity

Abstract: Masks capable of measuring V̇O max during treadmill exercise were developed, tested and found to be accurate. Mask R has potential application to measurement of V̇O max under field conditions.

Cited by 17 publications

References 30 publications

Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Conditioning equine athletes on water treadmills significantly improves peak oxygen consumption

Diseases of the Respiratory System

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Validation of masks for determination of V̇O2max in horses exercising at high intensity

Abstract: Masks capable of measuring V̇O max during treadmill exercise were developed, tested and found to be accurate. Mask R has potential application to measurement of V̇O max under field conditions.

Cited by 17 publications

References 30 publications

Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Efficacy of dexamethasone, salbutamol, and reduced respirable particulate concentration on aerobic capacity in horses with smoke‐induced mild asthma

Conditioning equine athletes on water treadmills significantly improves peak oxygen consumption

Diseases of the Respiratory System

Contact Info

Product

Resources

About

Validation of masks for determination of V̇O₂max in horses exercising at high intensity