Higher-intensity exercise results in more sustainable improvements for VO2peak for breast and prostate cancer survivors

Martin, Eric A., Battaglini, Claudio L., Hands, Beth, & Naumann, Fiona (2015) Higher-intensity exercise results in more sustainable improvements for VO2peak for breast and prostate cancer survivors. Oncology Nursing Forum, 42(3), pp. 241-249.

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Purpose/Objectives: To examine peak volume of oxygen consumption (VO2peak) changes after a high- or low-intensity exercise intervention.

Design: Experimental trial comparing two randomized intervention groups with control. 

Setting: An exercise clinic at a university in Australia.

Sample: 87 prostate cancer survivors (aged 47–80 years) and 72 breast cancer survivors (aged 34–76 years).

Methods: Participants enrolled in an eight-week exercise intervention (n = 84) or control (n = 75) group. Intervention participants were randomized to low-intensity (n = 44, 60%–65% VO2peak, 50%–65% of one repetition maximum [1RM]) or high-intensity (n = 40, 75%–80% VO2peak, 65%–80% 1RM) exercise groups. Participants in the control group continued usual routines. All participants were assessed at weeks 1 and 10. The intervention groups were reassessed four months postintervention for sustainability. 

Main Research Variables: VO2peak and self-reported physical activity.

Findings: Intervention groups improved VO2peak similarly (p = 0.083), and both more than controls (p < 0.001). The high-intensity group maintained VO2peak at follow-up, whereas the low-intensity group regressed (p = 0.021). The low-intensity group minimally changed from baseline to follow-up by 0.5 ml/kg per minute, whereas the high-intensity group significantly improved by 2.2 ml/kg per minute (p = 0.01). Intervention groups always reported similar physical activity levels. 

Conclusions: Higher-intensity exercise provided more sustainable cardiorespiratory benefits than lower-intensity exercise.

Implications for Nursing: Survivors need guidance on exercise intensity, because a high volume of low-intensity exercise may not provide sustained health benefits.

Impact and interest:

1 citations in Scopus
1 citations in Web of Science®
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ID Code: 83960
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: high intensity exercise, breast cancer, prostate cancer, VO2peak, exercise oncology; cardiorespiratory exercise test; aerobic exercise; breast neoplasms; prostate neoplasms
DOI: 10.1188/15.ONF.42-03AP
ISSN: 1538-0688
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Exercise Physiology (110602)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2015 Oncology Nursing Society (ONS)
Deposited On: 06 May 2015 23:11
Last Modified: 24 Jun 2017 17:01

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