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Exercise Intensity Classification in Cancer Patients Undergoing Allogeneic HSCT.
MedLine Citation:
PMID:  25202849     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Exercise intervention studies during and after cancer treatment show beneficial effects for various physical and psychosocial outcomes. Current exercise intensity guidelines for cancer patients are rather general and have been adapted from ACSM recommendations for healthy individuals. Intensive cancer treatment regimens such as allogeneic stem cell transplantation (allo-HSCT) may change the cardiovascular response to acute exercise. Therefore, we evaluated the relationships between %VO2 reserve (%VO2R, reference) and %HRR, %HRmax, and %VO2max and compared calculated intensities to given intensities by ACSM.
METHODS: Measurements prior to and 180 days after allo-HSCT from a randomized, controlled trial were used. Only patients who reached maximal effort and at least two exercise stages in our maximal incremental cycling test were included. Prior to allo-HSCT, 106 patients were included, and 180 days after treatment, 49 patients met our inclusion criteria. Individual regression lines were calculated with VO2R as the reference. Calculated exercise intensities for endurance training prescription were compared to ACSM values.
RESULTS: Prior to allo-HSCT, %HRR values of patients were significantly lower than ACSM values, and %HRmax and %VO2max values were significantly higher (except 90% HRmax, which was significantly lower, all p<.01). 180 days after allo-HSCT, values for %HRR were not significantly different to ACSM values (except 90%, which was significantly lower, p=.01), whereas %HRmax and %VO2max were significantly higher (all p<.05). Furthermore, regression models revealed no influence of beta-blockers on calculated intensities.
CONCLUSIONS: ACSM's exercise intensity recommendations for endurance training may not be applicable for cancer patients during and 180 days after allo-HSCT because they may not meet the targeted intensity class, with the exception of %HRR 180 days after allo-HSCT.
Authors:
Rea Kuehl; Friederike Scharhag-Rosenberger; Kai Schommer; Martina E Schmidt; Peter Dreger; Gerhard Huber; Martin Bohus; Cornelia M Ulrich; Joachim Wiskemann
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-9-8
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  -     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-9-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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