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- Title
Changes in running economy and attainable maximal oxygen consumption in response to prolonged running: The impact of training status.
- Authors
Unhjem, Runar Jakobsen
- 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.
- Subjects
NORWAY; EXERCISE physiology; WEIGHT loss; LONG-distance running; HEART rate monitoring; PULMONARY gas exchange; T-test (Statistics); RUNNING; EXERCISE intensity; PHYSICAL training &; conditioning; DESCRIPTIVE statistics; ENERGY metabolism; ATHLETES; REGULATION of body fluids; LACTATES; OXYGEN consumption; ANALYTICAL chemistry techniques; COMPARATIVE studies; DATA analysis software; REGRESSION analysis; EVALUATION
- Publication
Scandinavian Journal of Medicine & Science in Sports, 2024, Vol 34, Issue 5, p1
- ISSN
0905-7188
- Publication type
Article
- DOI
10.1111/sms.14637