Key result
High-grade uphill running linked to ~75% higher accumulated oxygen deficits versus low-grade running.
Why the study?
The relationship between accumulated oxygen deficit and treadmill grade during uphill running was unclear and required investigation.
Does treadmill grade during uphill running affect accumulated oxygen deficit?
Comparison
Uphill running at 10.5%, 15%, and 20% grades versus 1% grade
Design
Observational study with linear extrapolation of energy demand from submaximal oxygen uptake
Authors
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Higher grades may enhance anaerobic capacity estimation in runners; leaves open protocol standardization for performance testing.
Observational (n=11)
Does treadmill grade during uphill running affect accumulated oxygen deficit?
Accumulated oxygen deficit increases with treadmill inclination during uphill running, which may reflect the subjects' anaerobic capacity at higher grades.
H. L. Olesen (1992) reported an observational. Increased treadmill inclination vs. 1% treadmill grade was evaluated on Accumulated oxygen deficit. Increased treadmill inclination during uphill running resulted in higher accumulated oxygen deficits, reaching 69-100 ml O2/kg at 15-20% grades compared to 40-57 ml O2/kg at 1% grade.
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