Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
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Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2012) 11, 690 - 694

Research article
Test-Retest Reliability of the Aerobic Power Index Submaximal Exercise Test in Cancer Patients
Bonnie J. Furzer1, , Karen E. Wallman1, Timothy R. Ackland1, David J.L. Joske1 2 3
Author Information
1 School of Sport Science, Exercise & Health, University of Western Australia, Western Australia, Australia,
2 SolarisCare Foundation, Collaborative Research Team, Western Australia
3 Sir Charles Gairdner Hospital, Western Australia

Bonnie J. Furzer
✉ School of Sport Science, Exercise & Health, University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia 6009, Australia
Email: bonnie.furzer@uwa.edu.au
Publish Date
Received: 26-07-2012
Accepted: 17-09-2012
Published (online): 01-12-2012
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ABSTRACT

The purpose of this study was to investigate the reliability of the Aerobic Power Index (API) submaximal cardiorespiratory exercise test, as well as associated variables of oxygen uptake (ml·kg-1·min-1) and ratings of perceived exertion (RPE) in cancer patients who are generally unable to complete maximal or lengthy aerobic fitness tests. Twenty male and female participants (11 male; 9 female) aged between 18 and 70 y (mean = 53.28 ± 11. 82 y) were recruited with medical consent within 4 weeks of completing chemotherapy treatment for a lymphohaematopoietic cancer (LHC). Of the twenty recruited participants’ 2 were excluded from analysis due to disease relapse or complications unrelated to testing occurring within the month following testing. Intra-class correlation coefficient (ICC) scores for power output (W·kg-1) and oxygen uptake (ml·kg-1·min-1) were highly reliable (R1 = 0.96 and 0.96, respectively) and the ICC for RPE was moderately reliable (R1 = 0.83). Technical error of measurement results for power output (W·kg-1), oxygen uptake (ml·kg-1·min-1) and RPE were 0.11W·kg-1, 1.18 ml·kg-1·min-1 and 1.0 respectively. A Pearson’s product-moment correlation demonstrated a strong relationship between power output (W·kg-1) and oxygen uptake (ml·kg-1·min-1) for both trials (r = 0.93 and 0.89, respectively). Results demonstrate that the API test is a highly reliable protocol for use with a LHC population and can be considered a clinically feasible, safe and tolerable exercise test.

Key words: Exercise test, non-Hodgkin’s lymphoma, physical fitness, aerobic fitness, lymphohaematopoietic cancers


           Key Points
  • The API test is a highly reliable protocol for use within a haematological cancer population.
  • The API test of cardiovascular fitness can be considered a clinically feasible, safe and tolerable exercise test in cancer patients.
  • Intra-class correlation coefficient (ICC) scores for power output (W·kg) and oxygen uptake (ml·kg·min) were highly reliable and a correlations demonstrated a strong relationship between power output (W·kg) and oxygen uptake (ml·kg·min).
 
 
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