Exercise intensity, but not electrolyte reposition, alters plasmatic cortisol and glucose levels of horses submitted to 30 and 60km distance endurance rides

Neto, Antônio Raphael Teixeira; Ferraz, Guilherme de Camargo; D‘Angelis, Flora Helena de Freitas; Neto, J. C. Lacerda; Queiroz-Neto, A.

doi:10.1590/s0103-84782007000300021

Cited by 4 publications

(6 citation statements)

References 13 publications

(9 reference statements)

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“…Its main function is to maintain blood glucose in higher levels during fasting or exercise (Kaneko, 1997). This demonstrates the interdependence between this hormone and glucose regulation (Teixeira-Neto et al, 2007).…”

Section: Introductionmentioning

confidence: 72%

“…Biochemical analysis before supplementation with chromium showed significant difference between M1 and M2 for all variables evaluated, except for cortisol. According to Teixeira-Neto et al (2007), the interpretation of cortisol measurements should be done with caution as results may be influenced by other facts despite physical exercise. According to reports of Irvine e Alexander (1994) and Teixeira et al (2008), the circadian rhythm of cortisol in horses has a peak in the morning and then constantly decreases until evening.…”

Section: Resultsmentioning

confidence: 99%

“…According to Teixeira-Neto et al (2007), the interpretation of cortisol measurements should be done with caution as results may be influenced by other facts despite physical exercise. According to reports of Irvine e Alexander (1994) and Teixeira et al (2008), the circadian rhythm of cortisol in horses has a peak in the morning and then constantly decreases until evening. So it's very important to evaluate values obtained before and after supplementation to check the influence of exercise.…”

Section: Resultsmentioning

confidence: 99%

“…Linden et al (1990) described a linear relationship between plasma lactate, glucose and speed of the exercise indicating that aerobic training can minimize hyperlactacidemia. According to Ferraz et al (2008), the lactate threshold negatively correlates with the plasma glucose. The authors suggested these parameters as indicators of aerobic capacity in horses.…”

Section: Resultsmentioning

confidence: 99%

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Influence of chromium supplementation on energy metabolism in horses used in policing activity

Fonseca

Girardi

Coelho

et al. 2011

Arq. Bras. Med. Vet. Zootec.

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The influence of chromium supplementation on some blood variables in 11 adult stallions used for policing activities was evaluated. Each animal was treated with 11mg of chromium/400kg body weight, orally, for a period of 30 days. On days 0 (before) and 30 (after) the animals were evaluated and blood samples were obtained before and after exercise. Plasma glucose and lactate and serum cortisol and insulin were analyzed in each of these moments. On day 0, plasma glucose concentrations were 68.45.6mg/dL and 78.76.5mg/dL; plasma lactate concentrations were 6.20.6mg/dL and 13.17.6mg/dL; serum cortisol values were 48.57.9ng/mL and 42.619.7ng/mL; and serum insulin values were 3.06.4UI/mL and 1.91.7UI/mL, respectively, before and after exercise. On day 30, plasma glucose concentrations were 73.35.7mg/dL and 78.46.7mg/dL; plasma lactate concentrations were 7.30.9mg/dL and 7.61.2mg/dL; serum cortisol values were 62.921.8ng/mL and 40.317.0ng/mL; and serum insulin values were 1.41.3UI/mL and 1.71.4UI/mL, respectively, before and after exercise. As an effect of the exercise, a decrease was shown in the concentration of serum insulin and an increase in plasma lactate and glucose. Chromium supplementation resulted in a reduction of lactate values after physical activity, possibly indicating that chromium contributed to a better utilization of plasma glucose and to a better adaptation of animals to physical activity.Keywords: equine, biochemistry, chromium, exercise 68,45,6mg/dL e 78,76,5mg/dL; de lactato plasmático, 6,20,6mg/dL e 13,17,6mg/dL; de cortisol sérico, 48,57,9ng/mL e 42,619,7ng/mL; e de insulina sérica, 3,06,4UI/mL e 1,91,7UI/mL, respectivamente, antes e após o exercício. No dia 30, as concentrações de glicose plasmática foram 73,35,7mg/dL e 78,46,7mg/dL; de lactato plasmático, 7,30,9mg/dL e 7,61,2mg/dL; de cortisol sérico, 62,921,8ng/mL RESUMO O presente trabalho avaliou a influência da suplementação com cromo em algumas variáveis sanguíneas em 11 equinos machos, adultos, usados em atividade de policiamento. Cada animal recebeu 11mg de cromo/400kg de peso corpóreo, via oral, durante 30 dias. Nos dias 0 (antes) e 30 (após), os animais foram avaliados e amostras de sangue foram obtidas antes e após o exercício. Glicose e lactato plasmáticos e cortisol e insulina séricas foram determinados. No dia 0, as concentrações de glicose plasmática foram

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Section: Introductionmentioning

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of chromium supplementation on energy metabolism in horses used in policing activity

Fonseca

Girardi

Coelho

et al. 2011

Arq. Bras. Med. Vet. Zootec.

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“…According to Teixeira-Neto et al (2007) and Fonseca et al (2011), the interpretation of cortisol measurements should be done with caution as results may be influenced by other facts despite physical exercise. According to reports of Irvine e Alexander (1994) and Teixeira et al (2008), the circadian rhythm of cortisol in horses has a peak in the morning and then constantly decreases until evening.…”

Section: Resultsmentioning

confidence: 99%

Influence of selenium and vitamin E supplementation on energy metabolism in horses used in policing activity

et al. 2015

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This study evaluated the effect of supplementation with selenium and vitamin E on some blood variables in 11 adult male horses used in policing activity. Each animal was treated with 2.8 mg/400 kg of selenium and 2.000 UI/400 kg of vitamin E of body weight, orally, for a period of 30 days. On days 0 (before) and 30 (after), the animals were assessed, and blood samples were obtained before and after exercise. Glucose and lactate and plasma cortisol and serum insulin were determined. On day 0, serum cortisol concentrations were 56.8±12.1 ng/ml and 43.4±19.2 ng/ml, plasma lactate were 6.2±0.7 mg/dl and 12.3±9.2 mg/dl, serum glucose levels were 69.2±5.2 mg/dl and 77.5±6.6 mg/dl, and serum insulin were 3.1±5.1 μUI/ml and 1.5±1.6 μUI/ml, respectively, before and after exercise (M1 and M2). On day 30, serum cortisol concentrations were 55.6±15.6 ng/ml and 27.6± 12.2 ng/mL, plasma lactate were 7.0±0.9 mg/dl and 8.4± 1.7 mg/dl, plasma glucose were 76.0±4.1 mg/dl and 77.1± 8.9 mg/dl, and serum insulin were 3.3±6.9 μUI/ml and 2.1± 3.7 μUI/ml, respectively, before and after exercise (M1S and M2S). As a result of the exercise, it was shown a reduction in serum insulin and an increase in plasma lactate and glucose. Supplementation with selenium and vitamin E resulted in decreased levels of cortisol and lactate after physical activity, possibly indicating that supplementation contributed to better utilization of plasma glucose and improved adaptation to physical exercise.

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Effect of a 130-km Endurance Ride on the Serum Biochemical Profile of Mangalarga Marchador Horses

Noleto

Santos

Rocha

et al. 2016

Journal of Equine Veterinary Science

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Exercise intensity, but not electrolyte reposition, alters plasmatic cortisol and glucose levels of horses submitted to 30 and 60km distance endurance rides

Cited by 4 publications

References 13 publications

Influence of chromium supplementation on energy metabolism in horses used in policing activity

Influence of chromium supplementation on energy metabolism in horses used in policing activity

Influence of selenium and vitamin E supplementation on energy metabolism in horses used in policing activity

Effect of a 130-km Endurance Ride on the Serum Biochemical Profile of Mangalarga Marchador Horses

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