ObjectiveudThis study examined the effects of speed deception on performance, physiological and perceptual responses, and pacing during sprint-distance triathlon running.ududMethodsudEight competitive triathletes completed three simulated sprint-distance triathlons (0.75 km swim, 20 km bike, 5 km run) in a randomised order, with swimming and cycling sections replicating baseline triathlon performance. During the first 1.66 km of the run participants maintained an imposed speed, completing the remaining 3.33 km as quickly as possible. Although participants were informed that initially prescribed running speed would reflect baseline performance, this was true during only one trial (Tri-Run100%). As such, other trials were either 3% faster (Tri-Run103%), or 3% slower (Tri-Run97%) than baseline during this initial period.ududResultsudPerformance during Tri-Run103% (1346 ± 108 s) was likely faster than Tri-Run97% (1371 ± 108 s), and possibly faster than Tri-Run100% (1360 ± 125 s), with these differences likely to be competitively meaningful. The first 1.66 km of Tri-Run103% induced greater physiological strain compared to other conditions, whilst perceptual responses were not significantly different between trials.ududConclusionsudIt appears that even during ‘all-out’ triathlon running, athletes maintain some form of ‘reserve’ capacity which can be accessed by deception. This suggests that expectations and beliefs have a practically meaningful effect on pacing and performance during triathlon, although it is apparent that an individual’s conscious intentions are secondary to the brains sensitivity to potentially harmful levels of physiological and perceptual strain.
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机译：目的 ud这项研究检查了速度欺骗对短跑三项铁人三项跑步过程中性能，生理和知觉反应以及起搏的影响。 ud ud方法 ud八名竞争铁人三项运动员完成了三项模拟的短跑三项铁人三项（游泳0.75公里，骑自行车20公里，5公里长跑）以随机顺序进行，游泳和自行车运动部分重复了三项铁人三项底线的表现。在跑步的最初1.66公里期间，参与者保持了所施加的速度，并尽快完成了剩余的3.33公里。尽管参与者被告知最初规定的运行速度将反映基线性能，但这仅在一项试验中是正确的（Tri-Run100％）。因此，在此初始期间，其他试验比基线快3％（Tri-Run103％）或慢3％（Tri-Run97％）。 ud ud结果 ud在Tri-Run期间的性能103％（1346±108 s） ）可能比Tri-Run97％（1371±108 s）快，并且可能比Tri-Run100％（1360±125 s）快，而这些差异可能具有竞争意义。与其他条件相比，Tri-Run103％的前1.66 km诱发更大的生理张力，而各次试验之间的知觉反应没有显着差异。可以通过欺骗获取的“保留”容量。这表明，铁人三项运动期间的期望和信念对起搏和表现有实际意义的影响，尽管很明显，个人的意识是大脑对生理和知觉潜在有害水平敏感的敏感性的次要因素。
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