Teleoanticipation in all-out short-duration cycling

Wittekind, Anna; Micklewright, Dominic; Beneke, Ralph

doi:10.1136/bjsm.2009.061580

Cited by 48 publications

(44 citation statements)

References 30 publications

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“…Subjects knew that the Wnal MVCP test was going to last only 5 s, and such knowledge motivated them to exert further eVort after the time to exhaustion test which had a longer and unknown duration. The eVect of expected test duration on eVort mobilization has been recently investigated (Wittekind et al 2009), and the results support our hypothesis: people exert their true MVCP only when expected test duration is <30 s. Therefore, the very high MVCP measured immediately after exhaustion provide strong evidence against the long-standing assumption that exhaustion during high-intensity aerobic exercise occurs when fatigued subjects are no longer able to generate the power output required by the task despite their maximal voluntary eVort.…”

Section: Muscle Fatigue and Exhaustion During High-intensity Aerobic supporting

confidence: 77%

The limit to exercise tolerance in humans: mind over muscle?

2010

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In exercise physiology, it has been traditionally assumed that high-intensity aerobic exercise stops at the point commonly called exhaustion because fatigued subjects are no longer able to generate the power output required by the task despite their maximal voluntary effort. We tested the validity of this assumption by measuring maximal voluntary cycling power before (mean +/- SD, 1,075 +/- 214 W) and immediately after (731 +/- 206 W) (P < 0.001) exhaustive cycling exercise at 242 +/- 24 W (80% of peak aerobic power measured during a preliminary incremental exercise test) in ten fit male human subjects. Perceived exertion during exhaustive cycling exercise was strongly correlated (r = -0.82, P = 0.003) with time to exhaustion (10.5 +/- 2.1 min). These results challenge the long-standing assumption that muscle fatigue causes exhaustion during high-intensity aerobic exercise, and suggest that exercise tolerance in highly motivated subjects is ultimately limited by perception of effort.

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Section: Muscle Fatigue and Exhaustion During High-intensity Aerobic supporting

confidence: 77%

The limit to exercise tolerance in humans: mind over muscle?

2010

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“…A fingerpick capillary blood sample was then taken and analysed for [BLa] and blood glucose . After a brief rest (~ 60 sec) participants commenced exercise from a stationary start position and were counted down from 5 seconds (Wittekind et al 2011). Exhaustion was assumed as previously described.…”

Section: Protocolmentioning

confidence: 99%

Expectancy of ergogenicity from sodium bicarbonate ingestion increases high-intensity cycling capacity

Higgins

Shabir

2016

Appl. Physiol. Nutr. Metab.

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lower for SHAM compared to PLA (P=0.020, d=0.6). There were no differences between treatments for blood lactate, blood glucose or heart rate.In summary, ergogenicity after NaHCO 3 ingestion might be influenced by expectancy which mediates perception of effort during subsequent exercise.The observed ergogenicity with SHAM did not affect our measures of cardiorespiratory physiology or metabolic flux.

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“…Successful interventions which increased glycolytic rate and BLC improved long sprint performance (Douroudos et al 2006) and the decrease in power during repetitive WAnTs mainly reflects a lower glycolytic rate and lactate production (Parolin et al 1999). Furthermore, the increase in BLC and in particular the amount of lactate accumulated in the extra-vascular space during sprinting explained almost 60% of the variance of the perception of effort in sprints lasting 5-45 s (Wittekind et al 2009). Therefore, an understanding of the dynamic response of the BLC [BLC(t)] during sprint events is essential in considering potential effects of interventions to improve sprint performance.…”

Section: Introductionmentioning

confidence: 93%

Lactate response to short term exercise with elevated starting levels

et al. 2010

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A model that describes the blood lactate concentration (BLC) dynamics [BLC(t)] of a Wingate Anaerobic Test (WAnT) as a function of (a) BLC at the start of exercise (BLC(0)), (b) extra-vascular increase in lactate (A), (c) two corresponding velocity constants of appearance (k (1)) and disappearance (k (2)) of lactate into and out of the blood requires that BLC(0) is equal to resting BLC (BLC(rest)). We developed a model that considers an elevated BLC(0). 19 males performed WAnTs with warm-ups increasing (p < 0.001) BLC(0). The goodness of each individual fit improved (p < 0.05) if the difference between BLC(rest) and BLC(0) (DeltaBLC) was higher than 1.0 mmol l(-1). All differences between old and new model (p < 0.05) in A, k (1) and k (2) were interrelated with and increased with DeltaBLC (p < 0.05). The new model well describes BLC(t) and prevents substantial errors concerning lactate generation and dynamics if BLC(0) is elevated by more than 1.0 mmol l(-1).

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Teleoanticipation in all-out short-duration cycling

Abstract: an all-out pacing strategy was apparent for at least up to 15 s, with indicators of dampened power in both 30 and 45 s sprints. Reduced power at the start of all-out long-duration sprints support a central control of at least initial pacing strategy.

Cited by 48 publications

References 30 publications

The limit to exercise tolerance in humans: mind over muscle?

The limit to exercise tolerance in humans: mind over muscle?

Expectancy of ergogenicity from sodium bicarbonate ingestion increases high-intensity cycling capacity

Lactate response to short term exercise with elevated starting levels

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