Reliability and Comparison of RPE During Variable and Constant Exercise Protocols Performed by Older Women

Abstract

The purposes of this study were to assess if women 60 to 75 years of age perceived a series of exercise intensities differently from selected intensities in that series and to determine if a particular intensity was perceived more reliably. Twenty-four women (65 +/- 3.8 yr) completed a walking VO2max treadmill test. Subjects were either assigned to a variable, randomly ordered exercise protocol (GP1) or to one of three constant exercise protocols (Gps2-4). Each subject performed relative exercise intensities of 30, 50, and 70% of peak VO2 for three 5 min work bouts over 3 test days. Differences in RPE (p < 0.05) were found between each intensity and between the same intensities from both protocols. Women in GP1 rated exercise higher than women who exercised at a constant exercise intensity (p < 0.05). Intraclass correlation coefficients indicated that the exercise intensity of 50% of maximum was more reliable regardless of the protocol (Gp1: R = 0.97, Gp3: r = 0.94). When the RPE-HR correlation coefficients were transformed into a log scale, neither protocol had a stronger association (p > 0.05) between RPE-HR. It was concluded that older women should be given a range of exercise intensities that include the 50% relative exercise intensity as a perceptual marker in order to reach a reliable rate of exertion.

Functional Walk Tests in Individuals With Stroke

“…This concurs with other studies which have shown that cumulative effect contributes to increases in perceived exertion. 38 …”

Reliability of Rating Scales of Perceived Exertion and Heart Rate During Progressive and Maximal Constant Load Exercises Till Exhaustion in Physical Education Students

“…Moreover, some studies have established the reliability (or repeatability) of RPE under repeated testing conditions using different kinds of procedures [6,22,28,29,33]. The reliability of RPE has been found to be high in many investigations [10,16,28,29,33]. However, all these studies took place in the laboratory and most were carried out with women [6,16,29,33], or sedentary subjects [16,28,29,33].…”

A Systematic Review of Cross-Cultural Adaptation and Validation of Borg's Rating of Perceived Exertion Scale

“…A amostra total de participantes (somatório de todos os estudos) foi de 426 indivíduos, sendo 333 adultos (média (DP): 31,3 (5,81) anos), sendo 128 homens e 205 mulheres e apenas 93 idosos sem condições especiais de saúde (70,1 (4,05) anos), sendo 16 homens e 77 mulheres. Dos 14 artigos analisados, somente 3 estudos utilizaram a população de idosos [21][22][23] . Os 14 artigos incluídos na revisão abrangeram os anos de 1976 a 2015.…”

“…As modalidades de exercícios utilizados nos estudos foram ciclo ergômetro (38%) 21,23,25,[27][28][29] , esteira (19%) 22,24,26 , exercícios resistidos (13%) 24 , ciclismo indoor (19%) 30,31,32 , jogos no Nintendo Wii (6%) 33 e ciclo ergômetro adaptado para piscina (6%) 24 . Dentre os protocolos utilizados nos artigos, quatro estudos aplicaram protocolos de teste com carga incremental (25%), um estudo aplicou carga decremental (6%), quatro estudos aplicaram carga contínua (25%) e sete estudos aplicaram carga intervalada (44%).…”

“…A percepção subjetiva de esforço foi correlacionada com a frequência cardíaca (FC), potência, taxa ventilatória, consumo de oxigênio, eficiente metabólico bruto e concentração de lactato sanguíneo. A percepção subjetiva de esforço e a frequência cardíaca (FC) foram correlacionadas em dez artigos, sendo que um estudo apresentou correlação muito forte (r = 0,90  1,00) 23 , cinco estudos apresentaram correlação forte (r = 0,70  0,90) 21,22,25,27,28 , dois estudos apresentaram correlação moderada (r = 0,50  0,70) 26,29 , um estudo apresentou correlação fraca (r = 0,30  0,50) 33 e um estudo apresentou correlação muito fraca (r = 0,00  0,30) 32 . Além disso, um estudo apresentou coeficiente de regressão alto para teste de esteira (70%, R 2 =0,70) e relativamente fraca para exercício resistido (27%, R 2 =0,27) 24 .…”