ArticleEuropean journal of applied physiology2025
Influence of deception of task duration on the sex-specific physiological responses to RPE-clamp cycle ergometry.
Article in European journal of applied physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe purpose of this study was to examine the sex-specific influence of expected exercise duration on the physiological responses to RPE-clamp exercise anchored to RPE 15 with participants being deceived into believing the RPE-clamp exercise would last for 20-, 30-, or 40-min, but all trials were 30-min.
methodsTwelve males and 12 females completed a graded exercise test followed by randomly ordered RPE-clamp trials at RPE15 on the Borg 6-20 scale where subjects were deceived into expecting exercise to last for either 20-, 30-, or 40-min, but the actual duration for each trial was 30-min. Separate 2 (Sex [Male vs. Female]) × 3 (Deception [20-min, 30-min, 40-min]) × 11 (Time [0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 min]) mixed model analyses of variance (ANOVAs) with appropriate follow-up ANOVAs, and Bonferroni-corrected pairwise comparisons, were used to examine changes in volume of oxygen uptake (
resultsFemales, but not males, demonstrated lower power outputs when expected duration was 40-min compared to 20-min after approximately half of the exercise bout.
conclusionsRPE-clamp exercise performance in females, but not males, may be influenced by the expectation of exercise duration.
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