Veränderungen der Laufökonomie und des erreichbaren maximalen Sauerstoffverbrauchs als Reaktion auf längeres Laufen: Die Auswirkung des Trainingsstatus
Veränderungen der Laufökonomie und des erreichbaren maximalen Sauerstoffverbrauchs als Reaktion auf längeres Laufen: Die Auswirkung des Trainingsstatus
Abstract:
>During prolonged running at moderate-to-high intensity, running economy (RE) deteriorates and attainable maximal oxygen consumption (VO2max) decreases. Whether these changes appear similarly in trained and untrained runners exercising at the same relative intensity is not clear. We recruited 10 trained runners (TR) and 10 active adults (AA), and compared RE and attainable VO2max before and after 1 h of running at 70% of VO2max. Submaximal VO2 increased more (p = 0.019) in AA (0.20 ± 0.13 L min-1) than in TR (0.07 ± 0.05 L min-1). Attainable VO2max decreased in AA (-0.21 ± 0.15 L min-1, p = 0.002), but remained unchanged in TR (-0.05 ± 0.10 L min-1, p = 0.18). Relative intensity (i.e., VO2/attainable VO2max), increased more (p = 0.001) in AA (8.3 ± 4.4%) than in TR (2.6 ± 1.9%). These results demonstrate that the ability to resist changes in RE and VO2max following prolonged running is superior in trained versus untrained runners, when exercising at the same relative intensity.
Conclusion:
>During 1 h running at 70% of VO2max, VO2 increased more in AA than in TR, while attainable VO2max decreased in AA and remained unchanged in TR. As a consequence of this, relative intensity increased more in AA than in TR. These findings imply that TR exhibit superior ability to resist changes in RE and VO2max compared to AA, which may indicate that long term systematic running training increases physiological resilience.
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>For decades, the three-headed model consisting of maximal oxygen consumption, lactate threshold, and work economy15 has constituted the foundation of endurance physiology research. Arguably, as suggested by Jones,4 physiological resilience may compliment this model as a fourth parameter, as the three original components are susceptible to change during prolonged exercise. The fact that TR are superior in resisting changes in VO2max and RE compared to AA, may indicate that physiological resilience is a trait that adapts to training, although longitudinal experiments are required to confirm this. Being a relatively new area of research, knowledge of the factors that influences physiological resilience are sparse. Knowledge of which training exposure, or for that matter factors other than training that influences physiological resilience, would be useful for anyone striving to improve endurance performance.
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How much resilience is affected by mental approach would be a good question to answer. Trained runners KNOW they can run for an hour is that all it takes or if you gave the AA a positive mantra to say would that be enough to equal the TR?
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Abstract:
>During prolonged running at moderate-to-high intensity, running economy (RE) deteriorates and attainable maximal oxygen consumption (VO2max) decreases. Whether these changes appear similarly in trained and untrained runners exercising at the same relative intensity is not clear. We recruited 10 trained runners (TR) and 10 active adults (AA), and compared RE and attainable VO2max before and after 1 h of running at 70% of VO2max. Submaximal VO2 increased more (p = 0.019) in AA (0.20 ± 0.13 L min-1) than in TR (0.07 ± 0.05 L min-1). Attainable VO2max decreased in AA (-0.21 ± 0.15 L min-1, p = 0.002), but remained unchanged in TR (-0.05 ± 0.10 L min-1, p = 0.18). Relative intensity (i.e., VO2/attainable VO2max), increased more (p = 0.001) in AA (8.3 ± 4.4%) than in TR (2.6 ± 1.9%). These results demonstrate that the ability to resist changes in RE and VO2max following prolonged running is superior in trained versus untrained runners, when exercising at the same relative intensity.
Conclusion:
>During 1 h running at 70% of VO2max, VO2 increased more in AA than in TR, while attainable VO2max decreased in AA and remained unchanged in TR. As a consequence of this, relative intensity increased more in AA than in TR. These findings imply that TR exhibit superior ability to resist changes in RE and VO2max compared to AA, which may indicate that long term systematic running training increases physiological resilience.
>
>For decades, the three-headed model consisting of maximal oxygen consumption, lactate threshold, and work economy15 has constituted the foundation of endurance physiology research. Arguably, as suggested by Jones,4 physiological resilience may compliment this model as a fourth parameter, as the three original components are susceptible to change during prolonged exercise. The fact that TR are superior in resisting changes in VO2max and RE compared to AA, may indicate that physiological resilience is a trait that adapts to training, although longitudinal experiments are required to confirm this. Being a relatively new area of research, knowledge of the factors that influences physiological resilience are sparse. Knowledge of which training exposure, or for that matter factors other than training that influences physiological resilience, would be useful for anyone striving to improve endurance performance.
How much resilience is affected by mental approach would be a good question to answer. Trained runners KNOW they can run for an hour is that all it takes or if you gave the AA a positive mantra to say would that be enough to equal the TR?