Predicting a target exercise heart rate that reflects the anaerobic threshold in nonbeta-blocked hemodialysis patients: The Karvonen and heart rate reserve formulas
| Autor: | Yoshifumi Moriyama, Keiko Okada, Hirotake Kasuga, Ayaka Onoyama, Hiroki Yabe, Akiho Kiyota, Kenichi Kono |
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| Rok vydání: | 2020 |
| Předmět: |
Male
medicine.medical_specialty Anaerobic Threshold Interclass correlation medicine.medical_treatment 030232 urology & nephrology 030204 cardiovascular system & hematology 03 medical and health sciences 0302 clinical medicine Heart Rate Renal Dialysis Internal medicine Heart rate medicine Humans business.industry Reproducibility of Results Cardiopulmonary exercise testing Exercise therapy Hematology Middle Aged Intensity (physics) Nephrology Cardiology Exercise Test Kidney Failure Chronic Female Hemodialysis Heart rate reserve business Anaerobic exercise |
| Zdroj: | Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis TherapyREFERENCES. 25(6) |
| ISSN: | 1744-9987 |
| Popis: | The aim of this study was to evaluate constants of the Karvonen (k) and heart rate reserve (HRR) (α) formulas that correspond to the anaerobic threshold (AT) to conveniently estimate the intensity of exercise therapy in nonbeta-blocked patients undergoing hemodialysis. Twenty-three patients undergoing hemodialysis performed cardiopulmonary exercise testing (CPX) and their HR at AT was measured. The predictor coefficients for a target HR corresponding to AT were calculated for each patient based on CPX. Interclass correlation coefficients (ICC) and Bland-Altman analysis were used to evaluate the reliability of the formulas. Mean values of coefficient k of the Karvonen formula and α of the HRR formula were 0.24 ± 0.11 and 17.4 ± 8, respectively. The target HR calculated with k = 0.24 and α = 17 had significant ICC between HR at AT (0.74 and 0.77, respectively; P |
| Databáze: | OpenAIRE |
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