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- W4247372495 abstract "1738 The exercise-time relationship(E-T:r) has been proposed as a tool for the identification of an athlete's fitness profile with Critical Exercise-Intensity (CEI) being the parameter of the E-T:r reported to indicate aerobic capacity. PURPOSE: To compare the effects of aerobic and high-intensity training on the CEI. METHOD: Twenty four male participants, mean age (± sd) 19.7 (6.6) years, stature 1.78 (0.09) m and body mass 78.5 ((12.1) kg, were randomly assigned to one of 3 groups: no training (C), aerobic training (A) and high-intensity interval training (HI). Each participant then completed 4 constant intensity exercise-trials on a friction braked cycle ergometer (Monark 814E) to fatigue to determine CEI. In addition participants had their VO2max measured along with the exercise intensity coincident with a blood lactate value of 4mMol (4mMExInt). The participants then underwent their respective training regimes for a period of 6 weeks before being re-tested. Training comprised a minimum of 3 supervised laboratory sessions per week, (A group = 30 [email protected]–90% heart rate max) (HI group = repeated high intensity sprints, 10, 20 and 30 seconds duration). One-way ANOVA compared groups and paired t-tests compared pre- and post-training measures. RESULTS: There was no significant difference between the groups for CEI, VO2max or 4mMExint pre-training (p>0.05) The A group showed significant increases in both aerobic based variables following aerobic training [(VO2max; pre-4.16 ± 0.57L/min: post-4.44 ± 0.83 L/min) p<0.05], [4mMExInt: pre-158 ± 31: post-189 ± 45 watts) p<0.05] while there was no significant change in either HI or C group for either variable. The post-training values for CEI showed similar significant increases after aerobic training [(pre-215 ± 36 watts: post-256 ± 41 watts) p<0.05] with no significant difference in either HI or C group. CONCLUSION: These results suggest that CEI is sensitive to an aerobically based training regime but not sensitive to high-intensity interval based training, which further supports the aerobic nature of the underlying mechanisms involved in CEI." @default.
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- W4247372495 date "2004-05-01" @default.
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- W4247372495 title "The Effects of Training on the Critical Exercise-Intensity (Critical Power)." @default.
- W4247372495 doi "https://doi.org/10.1249/00005768-200405001-01209" @default.
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