VO2 Attained During Treadmill Running: The Influence of a Specialist (400-m or 800-m) Event

James, David; Sandals, Leigh E.; Draper, Stephen B.; Maldonado-Martín, Sara; Wood, D. M.

doi:10.1123/ijspp.2.2.128

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…If VO 2max is not attained in middle‐distance treadmill running at constant pace, this may have important implications for understanding the energetics of these events. Recently, it has been shown that the warm‐up strategy, pacing strategy, V O 2max , and specialist event of the athlete appears to influence the V O 2 attained during treadmill running (Draper, Wood, Corbett, James, & Potter, 2007; James, Sandals, Draper, Maldonado‐Martin, & Wood, 2007a; James et al ., 2007b; Sandals et al ., 2006), although a shortfall in V O 2 attained still remained. To what extent the V O 2 attained is a function of the duration of the event remains an open question.…”

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confidence: 99%

Influence of test duration on oxygen uptake attained during treadmill running

James

Sandals

Draper

et al. 2008

European Journal of Sport Science

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Previous investigations have revealed that in well-trained middle-distance runners, oxygen uptake (VO 2 ) does not attain maximal values (VO 2max ) in exhaustive treadmill trials where the VO 2 demand exceeds VO 2max . To date, this shortfall in the VO 2 attained has been demonstrated in trials as short as 2 min in duration. In this study, we investigated whether a reduction in exhaustive test duration influences the VO 2 attained during running on a treadmill. Six middle-distance runners participated in the study, completing an exhaustive 400 m and 800 m trial. These trials, together with a progressive test to determine VO 2max , were completed in a counterbalanced order. Oxygen uptakes attained during the 400 m and 800 m trials were compared to examine the influence of exhaustive test duration. A plateau in VO 2 was observed in all participants for the progressive test, demonstrating the attainment of VO 2max . The mean speed, duration, and resulting distance in the constant-speed exhaustive trials were 25.8 km × h (1 (s01.2), 55.8 s (s 02.3), and 400.2 m (s 020.2) for the 400 m trial, and 24.3 km × h (1 (s00.8), 108.4 s (s 021.2), and 730.1 m (s0129.1) for the 800 m trial, respectively. A paired-samples t-test revealed a significantly different (P00.018)%VO 2max was attained for the 400 m (85.7%, s 03.0) and 800 m (89.1%, s05.0) trials. In conclusion, VO 2 did not reach VO 2max during the exhaustive constant-speed 400 m and 800 m trials, but the test duration does influence the%VO 2max achieved. Specifically, the VO 2 attained becomes progressively further below VO 2max as trial duration is reduced, such that 89% and 86% VO 2max is achieved in exhaustive 800 m and 400 m constant-speed trials, respectively.

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Section: Introductionmentioning

confidence: 99%

Influence of test duration on oxygen uptake attained during treadmill running

James

Sandals

Draper

et al. 2008

European Journal of Sport Science

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The effect of different first 200-m pacing strategies on blood lactate and biomechanical parameters of the 400-m sprint

et al. 2010

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The purpose of the present study was to evaluate the effect of three pacing strategies upon performance of the 400-m sprint. Eight healthy male physical education students participated in this study. Each participant performed a 200-m maximal test (200(MAX)) and three 400-m running tests in a random counterbalanced design. The 400-m tests were run with the first 200-m pace set at 98% (400(98%)), 95% (400(95%)), and 93% (400(93%)), respectively, of the effort for 200(MAX). The stimulation of the lactate system was assessed by post-test blood lactate concentration (BLa). Running speed (RS) was controlled with time-keeping devices. Stride frequency (SF), stride length (SL) and lower extremity kinematics were acquired with video cameras operating at 100 fps at the 125 and 380-m marks of the tests. A two-way analysis of variance (ANOVA) with repeated measures was used to identify modifications caused by the pacing strategies used. Non-significant differences were revealed for BLa. The fastest 400-m race was run in 400(93%), but performance was not significantly different (p > 0.05) among the examined pacing strategies. RS, SF and SL had significantly (p < 0.05) lower values in the 380-m mark when compared with the 125-m mark. In 400(98%), both SF and SL decreased by approximately 13%, while SF and SL dropped 2.4 and 9.2%, respectively, in 400(93%). In conclusion, lower peak BLa and less unfavorable modifications of running mechanics were recorded in 400(93%), where time differential between the halves of the 400-m race was smaller, which eventually resulted in better performance.

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Effects of optimal pacing strategies for 400-, 800-, and 1500-m races on the[Vdot]O₂response

Hanon

Thomas

2011

Journal of Sports Sciences

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The aim of this study was to compare the evolution of oxygen uptake (VO2) in specifically trained runners during running tests based on the 400-, 800-, and 1500-m pacing strategies adopted by elite runners to optimize performance. Final velocity decreased significantly for all three distances, with the slowest velocity in the last 100 m expressed relative to the peak velocity observed in the 400 m (77%), 800 m (88%), and 1500 m (96%). Relative to the previously determined VO2max values, the respective VO 2peak corresponded to 94% (400 m) and 100% (800 and 1500 m). In the last 100 m, a decrease in VO2 was observed in all participants for the 400-m (15.6 ± 6.5%) and 800-m races (9.9 ± 6.3%), whereas a non-systematic decrease (3.6 ± 7.6%) was noted for the 1500 m. The amplitude of this decrease was correlated with the reduction in tidal volume recorded during the last 100 m of each distance (r = 0.85, P < 0.0001) and with maximal blood lactate concentrations after the three races (r = 0.55, P < 0.005). The present data demonstrate that the 800 m is similar to the 400 m in terms of decreases in velocity and VO2.

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VO2 Attained During Treadmill Running: The Influence of a Specialist (400-m or 800-m) Event

Cited by 5 publications

References 27 publications

Influence of test duration on oxygen uptake attained during treadmill running

Influence of test duration on oxygen uptake attained during treadmill running

The effect of different first 200-m pacing strategies on blood lactate and biomechanical parameters of the 400-m sprint

Effects of optimal pacing strategies for 400-, 800-, and 1500-m races on the[Vdot]O₂response

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VO2 Attained During Treadmill Running: The Influence of a Specialist (400-m or 800-m) Event

Cited by 5 publications

References 27 publications

Influence of test duration on oxygen uptake attained during treadmill running

Influence of test duration on oxygen uptake attained during treadmill running

The effect of different first 200-m pacing strategies on blood lactate and biomechanical parameters of the 400-m sprint

Effects of optimal pacing strategies for 400-, 800-, and 1500-m races on the[Vdot]O2response

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Effects of optimal pacing strategies for 400-, 800-, and 1500-m races on the[Vdot]O₂response