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The Journal of Sports Medicine and Physical Fitness 2000 September;40(3):201-8

lingua: Inglese

Heart ­rate-per­ceived exer­tion rela­tion­ship during ­training and ­taper

Martin D. T. 1, Andersen M. B. 2

1 Phys­iology and ­Applied Nutri­tion, Aus­tra­lian Insti­tute of ­Sport, Belconnen, Australia;
2 Centre for Reha­bil­i­ta­tion, Exer­cise & ­Sport Sci­ence, Vic­toria Uni­ver­sity, Vic­toria, Aus­tralia


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Back­ground. ­Examine the ­heart ­rate-per­ceived exer­tion (HR-RPE) rela­tion­ship ­under con­di­tions of ­high-inten­sity ­training and ­taper.
­Methods. Experi­mental ­design and par­tic­i­pants: pros­pec­tive ­with col­le­giate ­cyclists (n=11) com­pleted six ­weeks of ­high-inten­sity ­interval ­training, fol­lowed by a one-­week ­taper. Inter­ven­tions: par­tic­i­pants com­pleted a ­high-inten­sity ­training reg­imen ­along ­with ­graded exer­cise ­tests (GXT) ­throughout the ­training and the ­taper. Meas­ures: ­heart ­rates (HR) and rat­ings of per­ceived exer­tion (RPE) ­were ­recorded fol­lowing ­each ­stage of the ­GXTs. ­Scores on ­GXTs ­were ­also ­recorded.
­Results. The HR-RPE rela­tion­ship ­during ­GXTs ­changed ­over the ­course of the ­training ­with ­greater ­RPEs for a ­given HR at the end of the ­training com­pared to the begin­ning. The ­most pow­erful pre­dic­tors of the per­for­mance ­response to the ­taper ­were ­training ­induced ­changes in the HR-RPE rela­tion­ship and ­decreases in HR for a ­given ­power ­output. ­Those indi­vid­uals who ­reported ­higher ­RPEs for ­lower HRs ­were ­more ­likely to ­have ­better per­for­mance ­responses to ­taper (r=0.72) as ­were ­those who had ­larger ­changes in the HR-­power ­output rela­tion­ship (r=0.76).
Con­clu­sions. ­These ­results indi­cate ­that ­changes in the HR-RPE rela­tion­ship ­during ­high-inten­sity ­training may be ­used to mon­itor the mag­ni­tude of over­reaching ­that is nec­es­sary for a pos­i­tive ­response to a ­taper. For ­coaches and ath­letes, the HR-RPE ­ratio may be a prac­tical ­measure for mon­i­toring an ­aspect of ­fatigue asso­ciated ­with ­high-inten­sity ­training.

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