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Influence of hydration state on hormonal responses to exercise in dogs

100%

Baker M. A., Doris P. A., Turlejska E.

Journal of Physiology and Pharmacology

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1991

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tom 42

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nr 3

The purpose of these studies was to determine how plasma levels of arginine vasopressin (pAVP) are related to workload, plasma osmolality (pOsm), blood volume (BV) and plasma angiotensin II (pAII) in exercising dogs. Measurements were made in dogs running on a treadmill at 7.5 km. hr⁻¹ at slopes of 0, 10% and 20% when they were hydrated ad lib and when they had been deprived of drinking water and also in dogs running on a 20% slope after an IV infusion of hypertonic NaCl. Dehydration increased pOsm by 6.6% and reduced BV by 10% in resting dogs. In dehydrated animals, pAVP, pAII and pOsm were elevated above hydrated levels at rest and during exercise at all three workloads. In hydrated dogs, pOsm rose during exercise at 10% and 20% slopes but pAVP rose above resting levels only at the highest workload and pAII was not affected by exercise. In dehydrated dogs, pOsm and pAVP rose during exercise at 10% and 20% slopes and pAII was elevated at the 20% slope. BV decreased during exercise at the highest workload in both hydrated and dehydrated animals. After hypertonic NaCl, pAVP rose during exercise but pOsm and pAII did not. The results suggest that both osmotic and nonosmotic factors contribute to the release of AVP in exercising dogs and that exercise leads to a leftward shift in the relationship of pAVP to pOSM which could be a result of reduced blood volume.

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Effect of cytokinins on the changes of the polyamines level in the culture of protonema of Ceratodon purpureus

100%

Zarnowska A., Legocka J.

Acta Physiologiae Plantarum

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1997

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tom 19

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nr 2

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Metabolic and hormonal responses to body carbohydrate store depletion followed by high or low carbohydrate meal in sedentary and physically active subjects

67%

Mikulski T., Ziemba A., Nazar K.

Journal of Physiology and Pharmacology

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2010

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tom 61

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nr 2

The study was designed to determine metabolic and hormonal responses to acute modification of body carbohydrate stores by exercise and subsequent meals and to find out whether the responses depend on the training status of subjects. Nine sedentary students and 10 endurance athletes took part in four experimental sessions. During control session, after overnight fast oxygen uptake and CO2 production were measured and blood glucose, free fatty acids (FFA), insulin (I), leptin (L), growth hormone (GH), testosterone (T), catecholamines, ACTH and cortisol were determined. The remaining sessions were preceded by 1.5 h exercise at 70% HRmax in the evening followed by 12-16 hrs fast till morning when subjects ate either high-carbohydrate (H-CHO) or low-carbohydrate (L-CHO) meal or fasted. Respiratory gases and blood samples were collected before and 2 hours after meal. In glycogen depleted subjects respiratory quotient (RQ), I, norepinephrine (NE) and L decreased, whilst other variables were unaltered. Changes in I and NE were greater in athletes than in sedentary subjects. After H-CHO RQ, blood glucose, I and NE increased and FFA, GH and T decreased. The latter effect was greater in athletes than in untrained subjects. After L-CHO, RQ was at the fasting level and FFA increased only in sedentary group. In both groups I increased and GH and T decreased. Neither meal affected L concentration. In conclusion, hormonal and metabolic changes observed after depleting carbohydrate stores resemble those occurring during starvation. Composition of the ingested meal affects postprandial metabolism, which additionally depends on the subjects’ training status.

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Hormonal responses to exercise in girls during sexual maturation

67%

Laaneots L., Karelson K., Smirnova T., Viru A.

Journal of Physiology and Pharmacology

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1998

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tom 49

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nr 1

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Effects of three-day bed rest on metabolic, hormonal and circulatory responses to an oral glucose load in endurance or strength trained athletes and untrained subjects

67%

Smorawinski J., Kaciuba-Uscilko H., Nazar K., Kubala P., Kaminska E., Ziemba A. W., Adrian J., Greenleaf J. E.

Journal of Physiology and Pharmacology

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2000

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tom 51

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nr 2

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Effect of low-carbohydrate - katogenic diet on metabolic and hormonal responses to graded exercise in men

67%

Langfort J., Pilis W., Zarzeczny R., Nazar K., Kaciuba-Uscilko H.

Journal of Physiology and Pharmacology

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1996

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tom 47

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nr 2

Ograniczanie wyników

5 Journal of Physiology and Pharmacology

1 Acta Physiologiae Plantarum

3 Nazar K.

2 Kaciuba-Uscilko H.

1 Adrian J.

1 Baker M. A.

1 Doris P. A.

1 Greenleaf J. E.

1 Kaminska E.

1 Karelson K.

1 Kubala P.

1 Laaneots L.

1 Langfort J.

1 Legocka J.

1 Mikulski T.

1 Pilis W.

1 Smirnova T.

1 Smorawinski J.

1 Turlejska E.

1 Viru A.

1 Zarnowska A.

1 Zarzeczny R.

1 Ziemba A.

1 Ziemba A. W.

1 2010

1 2000

1 1998

1 1997

1 1996

1 1991

Influence of hydration state on hormonal responses to exercise in dogs

Effect of cytokinins on the changes of the polyamines level in the culture of protonema of Ceratodon purpureus

Metabolic and hormonal responses to body carbohydrate store depletion followed by high or low carbohydrate meal in sedentary and physically active subjects

Hormonal responses to exercise in girls during sexual maturation

Effects of three-day bed rest on metabolic, hormonal and circulatory responses to an oral glucose load in endurance or strength trained athletes and untrained subjects

Effect of low-carbohydrate - katogenic diet on metabolic and hormonal responses to graded exercise in men