Ratings of Perceived Exertion Among Standard Treadmill Protocols and Steady State Running

Glass, S. C.; Whaley, M. H.; Wegner, M. S.

doi:10.1055/s-2007-1024660

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…The lack of correspondence between RPE and %HRR observed in a substantial proportion (43%) of our sample has also been reported in healthy adults 10, 26-27 and cardiac patients 26, 28-29 . For example, Whaley et al 26 reported that 39% and 32% of healthy subjects and cardiac patients respectively reported an RPE above or below the expected value at 60% HRR.…”

Section: Discussionsupporting

confidence: 64%

Validity of Ratings of Perceived Exertion in Patients with Type 2 Diabetes

Unick

Gaussoin

Bahnson

et al. 2014

J Nov Physiother Phys Rehabil

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004 AbstractPurpose: To examine whether a subjective measure of moderate-intensity exercise (12-13 on Borg's ratings of perceived exertion scale; RPE) corresponds to the target heart rate for moderate-intensity exercise (40-59% heart rate reserve; %HRR) and to determine the characteristics of those for whom RPE does not appropriately estimate exercise intensity.Methods: 3582 individuals with type 2 diabetes (age: 58.3±6.8 years; BMI: 35.9±5.9 kg/m 2 ) underwent a maximal exercise test and minute-by-minute HR and RPE were recorded. Linear regression was used to determine the %HRR corresponding to an RPE of 12 and 13 for each individual. Results:At an RPE of 12 or 13, 57% of participants fell within the target 40-59% HRR range, while 37% and 6% fell above and below this range, respectively. Participants with a %HRR ≥60% (above range) were more likely to be female Conclusions: RPE appropriately gauges exercise intensity in approximately half of overweight individuals with type 2 diabetes; however, more than one-third of participants were at an increased risk of exercising at a higher than prescribed intensity when using RPE. Future studies should continue to examine the characteristics of individuals for whom RPE appropriately estimates exercise intensity and for those whom it does not. response in type 2 diabetes, where neuropathy and other diabetes related factors may alter the relationship, has not been established.The American College of Sports Medicine (ACSM) recommends that individuals with diabetes engage in 150 minutes/week (5 days/ week) of moderate-intensity exercise in bouts lasting ≥10 min with no more than 2 consecutive days between bouts [6,7]. Furthermore, moderate-intensity exercise is defined as 40-59% heart rate reserve (HRR) or 40-59% oxygen uptake reserve (VO 2 R). However, assessing heart rate (HR) or oxygen consumption (VO 2 ) is not practical in many situations; therefore more convenient methods for monitoring exercise intensity are often utilized. For example, the ratings of perceived exertion (RPE) scale has been shown to be an accurate and reliable tool for monitoring and self-regulating exercise intensity in selected populations [8,9]. Although subjective, the RPE scale has been shown to correlate with physiological variables such HR, ventilation, respiration, oxygen uptake, and blood lactate [10][11][12]. Additionally, an RPE of 12-13 on Borg's RPE scale [13] range 6-20, has been suggested to correspond with 40-59% HRR, the physiological threshold for defining moderate intensity activity [14]. However, there are limited data examining the correspondence between these methods for monitoring exercise intensity among individuals with type 2 diabetes.

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Section: Discussionsupporting

confidence: 64%

Validity of Ratings of Perceived Exertion in Patients with Type 2 Diabetes

Unick

Gaussoin

Bahnson

et al. 2014

J Nov Physiother Phys Rehabil

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“…The findings from the present investigation support the results from earlier studies that found higher RPEs at fixed relative intensities (40.60,70 and 80% MHRR) during the Balke protocol compared to the Bruce protocol [11,36] or simulated exercise training I11 1. Based on these previous studies, we had speculated that the higher RPE score during the Balke protocol may have been due to a greater BLC accumulation associated with the longer exercise test time prior to the attainment of the matched physiological value (i.e., H R O~ m2).…”

Section: Resultssupporting

confidence: 91%

The Effects of Blood Lactate Concentration on Perception of Effort During Graded and Steady State Treadmill Exercise

Moreau¹,

Whaley²,

Ross³

et al. 1999

Int J Sports Med

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Studies have reported that ratings of perceived exertion (RPE) are a valid tool for exercise prescription when blood lactate concentration (BLC) is used as the intensity criterion. However, few have studied the relationship between RPE and BLC during commonly used graded exercise tests (GXTs) and simulated exercise training. The purpose of this study was to determine if the RPE: BLC relationship is transferable across GXTs and a steady state exercise trial (SST). Thirteen healthy males (25+/-5.3yrs) completed two maximal treadmill tests (Bruce and Balke protocols) followed by a SST which consisted of approximately 8 minutes of exercise at each of two intensities (approximately 40% and 70% maximal heart rate reserve). BLCs and other physiological measures were compared at matched RPEs across the GXTs and SST trial at each exercise intensity using a two-way repeated measures ANOVA. There were no significant differences in BLC at a matched RPE across the exercise trials at the lower exercise intensity with the BLCs being 1.5+/-0.3, 1.6+/-0.6 and 1.3+/-0.3 mM, respectively. However, at the higher exercise intensity BLCs were significantly lower during the Balke GXT compared to the Bruce GXT and SST (1.8+/-0.6, 2.8+/-1.8 and 3.0+/-0.8 mM, p < 0.05). These results suggest that the RPE: BLC relationship may be protocol dependent during graded exercise testing as it was only transferable from the Bruce GXT to the exercise training setting at intensities in the typical prescription range of 50-85% of VO2max.

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“…Similarly, it should be noted that RPE at the same relative intensity has been shown to vary in both children and adults during different exercise tests. Glass et al (1991) reported that the RPE at ~65% of VO 2 max was significantly lower in adult men and women during a standard Bruce treadmill protocol compared to a modified Balke treadmill protocol. In addition, Mahon et al (1992) reported that the RPE at VT in a group of children was significantly lower (1 unit on the Borg 6-20 RPE scale) on the second of two identical treadmill tests performed on separate days although there were no differences in VT.…”

Section: Discussionmentioning

confidence: 96%

The Influence of Exercise Test Protocol on Perceived Exertion at Submaximal Exercise Intensities in Children

Mahon

Plank²,

Hipp³

2003

Can. J. Appl. Physiol.

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This study examined ratings of perceived exertion (RPE) using Borg's 6-20 scale at 50 W, 80 W, and ventilatory threshold (VT) in 10-year-old children (n = 15) during two different graded exercise tests. Power output was increased by 10 W.min(-1) in one protocol and by 30 W.3 min(-1) in the other. The cardiorespiratory responses at VT and peak exercise were similar between protocols. At 50 W and 80 W the cardiorespiratory responses were generally lower (P < 0.05) in the 10W trial. However, RPE was 11.5 +/- 2.9 and 12.1 +/- 3.2 at 50 W and 15.1 +/- 2.7 and 15.3 +/- 2.8 at 80 W in the 10-W and 30-W trials, respectively (P > 0.05). The RPE at VT was 13.9 +/- 2.4 in the 10-W trial and 12.4 +/- 2.4 in the 30-W trial (P < 0.05). In that variations in submaximal RPE did not coincide with variations in central mediators of exertion, locals cues of exertion may have provided the dominate sensory signal.

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Ratings of Perceived Exertion Among Standard Treadmill Protocols and Steady State Running

Cited by 13 publications

References 11 publications

Validity of Ratings of Perceived Exertion in Patients with Type 2 Diabetes

Validity of Ratings of Perceived Exertion in Patients with Type 2 Diabetes

The Effects of Blood Lactate Concentration on Perception of Effort During Graded and Steady State Treadmill Exercise

The Influence of Exercise Test Protocol on Perceived Exertion at Submaximal Exercise Intensities in Children

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