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Ryosuke Shigematsu, Linda M. Ueno, Masaki Nakagaichi, Hosung Nho and Kiyoji Tanaka

The purpose of this study was to determine the efficacy of rate of perceived exertion (RPE) to monitor exercise intensity in older adults. Middle-aged (46.9 ± 7.0 years, n = 24) and older women (75.5 ± 3.8 years, n = 29) performed a graded maximal exercise test on a cycle ergometer while RPE, oxygen uptake, heart rate, and blood lactate levels were measured. The Pearson’s product-moment correlation coefficient between RPE and oxygen uptake for each stage of the graded exercise test was calculated for each participant. The mean coefficient for the older group (r = .954) was similar to that of middle-aged group (r = .963). The autocorrelation coefficient was much lower (r = .411) in the older group than in the middle-aged group (r = .871). Variability in RPE through the graded exercise test was similar between the two groups. In conclusion, RPE was strongly associated with oxygen uptake in the older group. These results indicate that RPE is effective in monitoring exercise intensity in older adults.

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Guilherme Assuncao Ferreira, Raul Osiecki, Adriano Eduardo Lima-Silva, Michel Cardoso de Angelis-Pereira and Fernando Roberto De-Oliveira

The objective of this study was to evaluate the effect of a reduced-carbohydrate (reduced-CHO) diet on the rate of perceived exertion (RPE) curve during an incremental test. Nine physically active men performed a progressive incremental test on a cycle ergometer (25 W·2 min−1) after 72 hr on either a control diet (60% CHO) or a reduced-CHO diet (30% CHO). Lactate and RPE thresholds were identified using the Dmax method (DmaxLa and DmaxRPE, respectively). Power output, heart rate and RPE scores in DmaxLa and DmaxRPE were similar between the diets and were not different from each other, regardless of the diet. Lactate values were consistently higher (p < .05) in the control diet compared with the reduced-CHO diet during power output after the lactate breakpoint; however, they were not accompanied by a proportional increase in RPE scores. These results suggest that DmaxRPE and DmaxLa are not dissociated after a short-period reduced-CHO diet, whereas the lactate values after the lactate threshold are reduced with a reduced-CHO diet, although they are not accompanied by alterations in RPE.

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Natalie L. Myers, Guadalupe Mexicano and Kristin V. Aguilar

exertion (sRPE). sRPE is quantified by multiplying training session duration (in minutes) by rate of perceived exertion (RPE), a subjective index of effort often measured on a scale of 0 to 10. RPE is a valid measure and can be easily implemented into any clinical setting, making it a desirable form of

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Anne-Marie Heugas and Isabelle A. Siegler

, 2009 ). The rationale of this experiment was to investigate the respective roles of EC, rate of perceived exertion (RPE), and movement variability in the triggering of gait transitions for a group of elite race walkers and a control group of physically fit individuals. We aimed to evaluate how these

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Cesar Gallo-Salazar, Juan Del Coso, David Sanz-Rivas and Jaime Fernandez-Fernandez

a monitor (Polar M400, Polar Electro, Kempele, Finland). Right after the end of each match, the Borg CR10 Scale 22 was used to obtain their rate of perceived exertion (RPE), after players were asked “How intense was your match?” The GPS units were turned on prior to the warm-up to guarantee

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Peter J. Whalley, Chey G. Dearing and Carl D. Paton

a portable tablet device. Heart rate was recorded at 1 Hz during the trials using a telemetry system (Garmin 920 XT; Garmin International, Olathe, KS). On completion of each trial, runners were asked to estimate their average rate of perceived exertion using the Borg 6–20 scale. 15 Experimental

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Susan J. Leach, Joyce R. Maring and Ellen Costello

The aim of this study was to investigate whether a 6-week Divided-Attention Stepping Accuracy Task (DATSAT) intervention improved the primary outcome measure, maximal step length; other balance measures (Berg Balance scale and Timed Up and Go test); leg strength; endurance (6-min walk test); and functional tasks in 15 community-dwelling healthy older adults (x¯ age: 71.5 years, female: 46.7%) compared with 15 community-dwelling healthy older adults in a Bike and Strength (B&S) program (x¯ age: 73.8 years, female: 33.3%). Participants trained 3× per week, 30–60 min per session. Stepping-group differences were significant for all measures. B&S group improved in maximal step length (anterior and lateral), strength, and one functional task. Stepping group outperformed B&S group in Timed Up and Go and maximal step length posterior. B&S group outperformed stepping group in two strength measures. Exertion scores were lower for the stepping group. Overall, Divided-Attention Timed Stepping Accuracy Task training resulted in more within-group improvements and two between-group measures with less perceived effort and shorter intervention times.

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Ross Armstrong, Christopher Michael Brogden and Matt Greig

the BS were potentially the best predictors. The secondary aim was to investigate whether differences existed in mechanical loading values between hypermobile and nonhypermobile dancers. The tertiary aim was to consider whether differences existed in heart rate and rate of perceived exertion (RPE) 25

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Roger T. Couture, Wendy Jerome and Jeno Tihanyi

This study examined the effects of association and both internal and external dissociation on the performance, perceived fatigue, and rate of exertion of recreational swimmers during two swimming trials. Before the first swim, 69 participants completed a self-report questionnaire. After the first swim, participants were assigned to one of four groups equated with swim performance times: control, associative, internal dissociative, and external dissociative groups. After completing both the first and second swims, participants completed the Rate of Perceived Exertion, Perceived Fatigue Test, and Subjective Appraisal of Cognitive Strategies. Results showed that the group assigned to the associative strategy swam significantly faster (p < .05) than the control group. No changes were found in perceived fatigue and perceived rating of exertion among the groups between the first and second swim. These findings support the position that associative thinking is an important cognitive strategy in timed performances.

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Thomas J. Birk and Marianne Mossing

The purpose of this study was to determine whether heart rate and ventilation can be predicted from RPE. Also, this study determined whether breathing or heart rate sensations caused perceived effort or strain (degree of perceived central strain). Eight ambulatory active teenagers (ages 13-16 years, M= 14.75) with spastic cerebral palsy performed a discontinuous maximum bicycle ergometer protocol. Rate of perceived exertion (RPE), heart rate (HR) (V5 lead), and V̇E (Wright respirometer) were recorded each minute. Results indicated that Minutes 1 and 2 of Stage 1 were significantly correlated for RPE and ventilation, and RPE and heart rate were significantly correlated for Minutes 3 and 4 of Stages 1 and 2. Low standard error of estimates values were also evident for each of these minutes wherein significant correlations resulted. Initially, pulmonary strain was perceived as greater than HR for a given RPE value. However, by the conclusion of the second stage, breathing was slightly less than cardiac strain. Results suggest that RPE can be used to predict heart rate after the 2nd minute of discontinuous exercise training or testing. The accurate estimation of ventilation for the initial minutes of exercise may be limited since some anxiety, secondary to hyperventilation, could result. Also, breathing is perceived as a greater strain than heart rate initially but appears to equal and be slightly lower at the conclusion of aerobic exercise.