Overall and peripheral ratings of perceived exertion during a graded exercise test to volitional exhaustion in individuals of high and low fitness.
This study assessed the relationship between differentiated ratings of perceived exertion (RPE) and heart rate with oxygen uptake (VO2) during two graded exercise tests (GXT) to exhaustion on a cycle ergometer in 49 men and women (19-50 years) of high and low fitness. The study also assessed whether sub-maximal RPE values elicited during the GXTs could provide appropriate estimates of maximal aerobic power (VO2max) Peripheral RPE (RPEP) was higher than overall RPE (RPEO) at exhaustion in both groups (P<0.001), but the reliability of the terminal RPEO was higher (0.75 and 0.40, respectively). Fitness did not moderate the relationship of RPEO and RPEP with VO2 during the GXTs (P>0.05). However, the correlation for RPEP and VO2 was higher for women compared to men (0.98 and 0.96, respectively, P<0.05), although this is of little practical significance. In both groups, RPEO was almost as highly correlated with VO2 as heart rate during GXTs terminated at exhaustion (approximately 0.955-0.980). There were no differences between predicted and measured VO2max when VO2 values were extrapolated from sub-maximal RPEO (13, 15 and 17) intensities (42.1+/-12.5, 43.4+/-11.5, 44.2+/-11.3 and 43.3+/-10.0 ml kg(-1) min(-1), respectively). However, VO2max predicted from sub-maximal RPEP intensities was significantly lower (P<0.05). In conclusion, terminal RPEO was a more reliable measure of the RPE, and provided more accurate estimates of VO2max in healthy participants of high and low fitness when elicited from sub-maximal exercise intensities.
Faulkner
James
J
School of Sport and Health Sciences, University of Exeter, Exeter, UK.
Eston
Roger
R
D000328:Adult; D000704:Analysis of Variance; D003627:Data Interpretation, Statistical; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D005082:Physical Exertion / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D011659:Pulmonary Gas Exchange / Q000502:physiology; D012649:Self Concept; D012727:Sex Characteristics
Med Sci Sports Exerc. 1987 Aug;19(4):354-62
3657484
Int J Sports Med. 2005 Oct;26(8):675-81
16158374
Eur J Appl Physiol Occup Physiol. 1985;54(4):343-9
4065121
Percept Mot Skills. 1996 Apr;82(2):419-24
8724910
Med Sci Sports Exerc. 1999 Aug;31(8):1226-9
10449028
Eur J Appl Physiol. 2003 Jun;89(5):445-50
12748864
Med Sci Sports Exerc. 1997 Aug;29(8):1028-35
9268959
Percept Mot Skills. 1988 Oct;67(2):671-6
3217222
J Sports Sci. 2008 Jan 15;26(2):131-9
17852665
Lancet. 1986 Feb 8;1(8476):307-10
2868172
Eur J Appl Physiol. 2007 Oct;101(3):397-407
17684757
Ergonomics. 1998 Oct;41(10):1500-9
9802254
J Appl Physiol (1985). 1996 Oct;81(4):1642-50
8904581
Med Sci Sports Exerc. 2000 Dec;32(12):2120-9
11128861
Med Sci Sports Exerc. 1983;15(6):523-8
6656563
Percept Mot Skills. 2003 Apr;96(2):653-63
12776849
J Sports Sci. 2000 Apr;18(4):291-8
10824645
Eur J Appl Physiol Occup Physiol. 1987;56(2):222-4
3569229
Percept Mot Skills. 1996 Jun;82(3 Pt 1):1035-42
8774048
Eur J Appl Physiol Occup Physiol. 1990;60(6):445-51
2390983
Psychophysiology. 2007 Sep;44(5):779-86
17617170
Int J Sports Med. 1995 Aug;16(6):385-9
7591390
J Sports Sci. 2002 Nov;20(11):873-99
12430990
Med Sci Sports Exerc. 1992 May;24(5):556-67
1569852
Eur J Appl Physiol. 2006 Jul;97(5):535-41
16779551
Int J Sports Med. 1991 Aug;12(4):427-9
1917230
Int J Sports Med. 1996 Aug;17(6):462-6
8884423
Eur J Appl Physiol. 2005 Jun;94(3):221-7
15815937
Eur J Appl Physiol. 2001 Jan-Feb;84(1-2):115-21
11394239
Percept Mot Skills. 1979 Dec;49(3):683-9
530771
Ergonomics. 1981 Apr;24(4):295-300
7238495