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Related Experiment Videos

Physiological responses to prolonged physical exercise in dogs.

Z Brzezińska, H Kaciuba-Uścilko, K Nazar

    Archives Internationales De Physiologie Et De Biochimie
    |August 1, 1980
    PubMed
    Summary

    Dog exercise duration correlates with body weight. Physiological responses like rectal temperature and blood glucose changes during exercise depend on initial levels and other factors, with notable links to plasma FFA and noradrenaline.

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    Area of Science:

    • Canine physiology
    • Exercise science
    • Animal sports medicine

    Background:

    • Understanding physiological responses to exercise in dogs is crucial for performance and health.
    • Factors influencing exercise capacity and metabolic changes require further investigation.

    Purpose of the Study:

    • To investigate the relationship between body weight and exercise duration until exhaustion in dogs.
    • To analyze the determinants of rectal temperature (Tre) and blood glucose (BG) changes during exercise.
    • To explore the correlations between plasma free fatty-acid (FFA) and noradrenaline levels with exercise intensity and metabolic shifts.

    Main Methods:

    • Dogs underwent exercise testing until exhaustion.
    • Measurements included body weight, rectal temperature (Tre), blood glucose (BG), plasma free fatty-acid (FFA), and noradrenaline.

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  • Statistical analyses were performed to identify correlations between variables.

    • Main Results:

    • Exercise duration until exhaustion was significantly correlated with dog body weight.
    • Final Tre depended on resting Tre, but exercise-induced increases were independent of initial Tre.
    • Exercise-induced BG decrease magnitude correlated positively with resting BG and negatively with plasma FFA elevation.
    • Increases in plasma FFA levels during exercise showed a significant positive relationship with noradrenaline levels.

    Conclusions:

    • Body weight is a key factor influencing canine exercise endurance.
    • Thermoregulation and glucose metabolism during exercise are complex, influenced by resting values and hormonal responses.
    • Plasma FFA and noradrenaline are closely linked to metabolic stress during canine exercise.