Journal
RESEARCH QUARTERLY FOR EXERCISE AND SPORT
Volume 90, Issue 4, Pages 470-478Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/02701367.2019.1618784
Keywords
Endurance; exercise; performance; training
Funding
- Estonian Research Council [PUT1395G]
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Purpose: The purpose of this study was to investigate the differences in metabolic responses between the track and the treadmill (1% inclination) running. The latter is recommended for use in laboratory settings to mimic outdoor running. Method: Seventeen male endurance athletes (mean 25.8, s = 3.8 years) performed 4-min running bouts on an indoor track and the treadmill. Results: At all speeds (11, 13, and 15 km center dot h(-1)) athletes showed better economy on the track running compared to the treadmill expressed as oxygen (7.9%, 5.2%, and 2.8%) and caloric (7.0%, 5.3%, and 2.6%) unit cost. Rating of perceived exertion was evaluated substantially higher at all speeds on the treadmill (F(1,16) = 31.45, p < .001, eta(2)(p) = .663) compared to running on the track. Participants presented lower heart rate (F(1,16) = 13.74, p = .002, eta(2)(p )= .462) on the track at the speed of 11 and 13 km center dot h(-1) compared to the treadmill, but not at 15 km center dot h(-1) (p = .021). Conclusions: We conclude that constant inclination (i.e.. 1%) during the treadmill test might not be suitable to reproduce comparable effort to running on the track; rather, there is an optimal treadmill inclination for different intensities to reproduce similar effort compared to the track running.
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