Journal article
A Randomized Trial on the Effect of Exercise Mode on Breast Cancer-Related Lymphedema
Medicine and science in sports and exercise, Vol.48(10), pp.1866-1874
01/10/2016
PMID: 27187092
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Abstract
Purpose Breast cancer-related lymphedema is a common and debilitating side effect of cancer treatment. This randomized trial compared the effect of progressive resistance- or aerobic-based exercise on breast cancer-related lymphedema extent and severity, as well as participants' muscular strength and endurance, aerobic fitness, body composition, upper-body function, and quality of life.
Methods Women with a clinical diagnosis of stable unilateral, upper-limb lymphedema secondary to breast cancer were randomly allocated to a resistance-based (n = 21) or aerobic-based (n = 20) exercise group (12-wk intervention). Women were assessed preintervention, postintervention, and 12 wk postintervention, with generalized estimating equation models used to compare over time changes in each group's lymphedema (two-tailed P < 0.05).
Results Lymphedema remained stable in both groups (as measured by bioimpedance spectroscopy and circumferences), with no significant differences between groups noted in lymphedema status. There was a significant (P < 0.01) time-group effect for upper-body strength (assessed using four to six repetition maximum bench press), with the resistance-based exercise group increasing strength by 4.2 kg (95% confidence interval [CI] = 3.2-5.2) postintervention compared with 1.2 kg (95% CI = -0.1 to 2.5) in the aerobic-based exercise group. Although not supported statistically, the aerobic-based exercise group reported a clinically relevant decline in number of symptoms postintervention (-1.5, 95% CI = -2.6 to -0.3), and women in both exercise groups experienced clinically meaningful improvements in lower-body endurance, aerobic fitness, and quality of life by 12-wk follow-up.
Discussion Participating in resistance- or aerobic-based exercise did not change lymphedema status but led to clinically relevant improvements in function and quality of life, with findings suggesting that neither mode is superior with respect to lymphedema effect. As such, personal preferences, survivorship concerns, and functional needs are important and relevant considerations when prescribing exercise mode to those with secondary lymphedema.
Details
- Title
- A Randomized Trial on the Effect of Exercise Mode on Breast Cancer-Related Lymphedema
- Creators
- Jena Buchan - Queensland University of TechnologyMonika Janda - University of QueenslandRobyn Box - Queensland Lymphedema & Breast Oncol Physiotherap, Grange, Qld, AustraliaKathryn Schmitz - Univ Penn, Philadelphia, PA 19104 USASandra Hayes - Menzies School of Health Research
- Publication Details
- Medicine and science in sports and exercise, Vol.48(10), pp.1866-1874
- Publisher
- Lippincott Williams & Wilkins
- Number of pages
- 9
- Identifiers
- 991013095013802368
- Academic Unit
- Faculty of Health
- Language
- English
- Resource Type
- Journal article