title: Impact of Direction of Unloading Influence on Template Rate of Perceived Exertion.
abstract: Greer, BK, Young, PR, Thompson, B, Rickert, BJ, and Moran, MF. Impact of direction of unloading influence on template rate of perceived exertion. J Strength Cond Res 32(12): 3407-3413, 2018-It is suggested that exercisers engage in a process of teleoanticipation and create an exercise template based on previous experience with the exercise task that guides their perceptions of the amount of effort required for task completion. This study examined how altering workload intensity during a positive-pressure treadmill task may impact Rating of Perceived Exertion (RPE). In a counterbalanced design, 15 collegiate cross-country runners (7 men and 8 women) performed 2 25-minute runs at a constant velocity, while body mass (BM) was either increased from 60 to 100% (low-to-high progression trial [INC]) or decreased from 100 to 60% (high-to-low progression trial) in 5-minutes increments. Oxygen consumption (V[Combining Dot Above]O2), heart rate (HR), and respiratory exchange ratio (RER) were collected. RPE was recorded at the end of each stage, and energy expenditure (EE) was calculated with V[Combining Dot Above]O2 and RER data. There were no significant differences between direction of loading conditions for V[Combining Dot Above]O2, EE, HR, and RER (p > 0.05). Between-trial differences in RPE at 100, 90, and 80% BM were statistically significant (p < 0.001), with higher RPEs observed during the INC. Differences in RPE observed between conditions cannot be explained by physiological mechanisms. These findings suggest that RPE is a multifaceted construct that can be impacted by subjectively based anticipatory factors such as exercise intensity.
authors.affiliation: Department of Physical Therapy and Human Movement Science, Sacred Heart University, Fairfield, Connecticut.
authors.forename: Beau Kjerulf
authors.initials: BK
authors.lastname: Greer
authors.affiliation: Department of Psychology, Wingate University, Charlotte, North Carolina.
authors.forename: Patrick R
authors.initials: PR
authors.lastname: Young
authors.affiliation: Department of Psychology, Gardner-Webb University, Boiling Springs, North Carolina.
authors.forename: Brooke
authors.initials: B
authors.lastname: Thompson
authors.affiliation: Department of Physical Therapy and Human Movement Science, Sacred Heart University, Fairfield, Connecticut.
authors.forename: Brendan J
authors.initials: BJ
authors.lastname: Rickert
authors.affiliation: Department of Physical Therapy and Human Movement Science, Sacred Heart University, Fairfield, Connecticut.
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Moran
mesh_terms: D000293:Adolescent; D018592:Cross-Over Studies; D004734:Energy Metabolism; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D012129:Respiratory Function Tests; D012420:Running / Q000502:physiology* / Q000523:psychology*; D055815:Young Adult