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The effect of exercise in patients with lower limb lymphedema: a systematic review
Merete Celano Wittenkamp1, Jan Christensen2, Anders Vinther3
1Department of Physiotherapy and Occupational Therapy, Copenhagen University Hospital, Herlev and Gentofte Hospital, Denmar; Department of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark. merete.celano.wittenkamp@regionh.dk.
Purpose:
To summarize the evidence of the immediate and long-term effect of exercise interventions in patients with either primary or secondary lower limb lymphedema (LLL) on health-related quality of life (HR-QOL), physical function, self-reported symptoms, lower limb volume, and adverse events.
Design:
Systematic review following the guidelines from the Cochrane Handbook of Systematic Reviews of Interventions.
Data Sources:
MEDLINE, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials (CENTRAL), and clinicaltrials.gov.
Eligibility Criteria:
Prospective exercise trials investigating exercise interventions as a single- or multicomponent programme in patients with LLL including assessment of at least one of the following outcomes: HR-QOL, self-reported LLL symptoms (heaviness, tension, and pain), physical function, or lower limb volume. Randomized controlled trials (RCTs), single-group studies, and cross-over trials were eligible. Trials with participants at risk of LLL or a diagnosis of filariasis or lipedema were excluded.
Results:
Twelve studies were included: three RCTs, five single-group studies, and four cross-over trials with a total of three hundred and sixty-seven participants. In patients with LLL, irrespective of severity, exercise seemed to have small but positive effects on HR-QOL, physical function, pain, and lower limb volume. Quality assessment showed high risk of bias. Large heterogeneity in participants, interventions, and outcome measures hinders performing of meta-analyses.
Interpretation:
Based on a small number of studies with large clinical heterogeneity, poor methodological quality, hence low level of certainty of evidence, it was not possible to provide evidence-based recommendations on exercise for patients with LLL.
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