Back to Search
Start Over
Comparison of Methods for Determining Aerobic Exercise Intensity Using Heart Rate in Acute Leukemia Patients Prior to Induction Chemotherapy
- Source :
- Biological research for nursing. 18(4)
- Publication Year :
- 2016
-
Abstract
- Introduction: Cardiopulmonary exercise testing (CPET), the gold standard of cardiopulmonary evaluation, is used to determine VO2 levels at different aerobic exercise training intensities; however, it may not be feasible to conduct CPET in all clinical settings. Aims: To compare the heart rate reserve (HRR) and percent of 220-age methods for prescribing cycle ergometry exercise intensity using heart rate (HR) against the HRs obtained during a CPET in adults undergoing treatment for acute leukemia (AL). Methods: In this exploratory study, part of a larger randomized controlled trial, 14 adults with AL completed CPET on a cycle ergometer with indirect calorimetry within 96 hr of admission to a cancer hospital to determine VO2peak and HR corresponding to low (40% VO2peak), moderate (60% VO2peak), and high (75% VO2peak) exercise intensities. Analyses of variance were used to compare estimated HR for each intensity level using the HRR and percent of 220-age methods with HR determined via VO2peak. Results: HR corresponding to low-intensity exercise differed significantly across all three methods ( p ≤ .05). No significant differences were observed between HR estimated via the percent of 220-age method and determined via VO2peak at moderate (100 ± 8 and 113 ± 24 bpm, p = .122) or high intensities (125 ± 10 and 123 ± 25 bpm, p = .994). Conclusion: In adults with AL, HR-based methods for defining aerobic exercise intensities should be used with caution. At low intensity, neither should be used, while at moderate and high intensities, the percent of 220-age equation might serve as an adequate substitute for CPET.
- Subjects :
- Adult
Male
medicine.medical_specialty
Article
law.invention
03 medical and health sciences
0302 clinical medicine
Oxygen Consumption
Randomized controlled trial
law
Heart Rate
Internal medicine
Heart rate
medicine
Aerobic exercise
Humans
Exercise
Aged
Acute leukemia
Leukemia
Research and Theory
business.industry
Induction chemotherapy
030229 sport sciences
Gold standard (test)
Induction Chemotherapy
Middle Aged
Intensity (physics)
030220 oncology & carcinogenesis
Acute Disease
Physical therapy
Exercise intensity
Cardiology
Female
business
Subjects
Details
- ISSN :
- 15524175
- Volume :
- 18
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Biological research for nursing
- Accession number :
- edsair.doi.dedup.....8993b98e55787f980648c9f36d7802e2