Journal ArticleDOI
A 1% treadmill grade most accurately reflects the energetic cost of outdoor running
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TLDR
Equality of the energetic cost of treadmill and outdoor running is demonstrated with the use of a 1% treadmill grade over a duration of approximately 5 min and at velocities between 2.92 and 5.0 m s-1.Abstract:
When running indoors on a treadmill, the lack of air resistance results in a lower energy cost compared with running outdoors at the same velocity. A slight incline of the treadmill gradient can be used to increase the energy cost in compensation. The aim of this study was to determine the treadmill gradient that most accurately reflects the energy cost of outdoor running. Nine trained male runners, thoroughly habituated to treadmill running, ran for 6 min at six different velocities (2.92, 3.33, 3.75, 4.17, 4.58 and 5.0 m s‐1) with 6 min recovery between runs. This routine was repeated six times, five times on a treadmill set at different grades (0%, 0%, 1%, 2%, 3%) and once outdoors along a level road. Duplicate collections of expired air were taken during the final 2 min of each run to determine oxygen consumption. The repeatability of the methodology was confirmed by high correlations (r = 0.99) and non‐significant differences between the duplicate expired air collections and between the repeated runs...read more
Citations
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Dietary nitrate supplementation reduces the O2 cost of walking and running: a placebo-controlled study
Katherine E. Lansley,Paul G. Winyard,Jonathan Fulford,Anni Vanhatalo,Stephen J. Bailey,Jamie R. Blackwell,Fred J. DiMenna,Mark Gilchrist,Nigel Benjamin,Andrew M. Jones +9 more
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Oxygen uptake kinetics in treadmill running and cycle ergometry: a comparison
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