Effects of deception on exercise performance: implications for determinants of fatigue in humans

摘要: Purpose: The aim of this study was to investigate whether it possible reduce the time taken complete a 4000-m cycling trial by misleading participants into believing they were racing against previous trial, when, in fact, power output 2% greater. Methods: Nine trained male cyclists each completed four trials. first habituation and data from second used form baseline (BL). During trials 3 4, raced an avatar, which informedrepresented their BL performance. However, whereas one these accurate (ACC) representation BL, outputin other set at 102% formed deception condition (DEC). Oxygen uptake RER measured continuously and determine aerobic anaerobic contributions output. Results: There significant difference betweentrials for completion (F = 15.3, P 0.00). Participants DEC more quickly than (90% CI 2.1–10.1 s) ACC (90% 1.5–5.4 ACC 0.5–4.8 s). performance between DEC and attributable greater contribution 90% total distance 5.3, 0.02, 90%CI 4–37 W). Conclusions: provision surreptitiously augmented feedback derived reduces timetaken accomplish known duration. This suggests that operate with metabolic reserve even duringmaximal can be accessed after deception.