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Physical exercise for the treatment of non-ulcerated chronic venous insufficiency.

Abstract：

BACKGROUND:Chronic venous insufficiency (CVI) is a common disease that causes discomfort and impairs the quality of life of affected persons. Treatments such as physical exercise that aim to increase the movement of the ankle joint and strengthen the muscle pump in the calf of the leg may be useful to reduce the symptoms of CVI. OBJECTIVES:To assess and summarise the existing clinical evidence on the efficacy and safety of physical exercise programmes for the treatment of individuals with non-ulcerated CVI. SEARCH METHODS:The Cochrane Vascular Information Specialist (CIS) searched the Cochrane Vascular Specialised Register (May 2016). In addition, the CIS searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 4) and trial databases for details of ongoing or unpublished studies. SELECTION CRITERIA:Randomised controlled trials (RCTs) comparing exercise with no exercise programmes. DATA COLLECTION AND ANALYSIS:Two review authors independently assessed the search results and selected eligible studies. We resolved disagreements by discussion. We summarised and double-checked details from included studies. We attempted to contact trial authors for missing data, but obtained no further information. MAIN RESULTS:We included two trials involving 54 participants with CVI. Many of our review outcomes were not reported or reported by only one of the two studies. The intensity of disease signs and symptoms was measured in both studies but using different scales; we were therefore unable to pool the data. One study reported no difference between the exercise and control groups whereas the second reported a reduction in symptoms in the exercise group. In one study, increases in change in ejection fraction compared with baseline (mean difference (MD) 4.88%, 95% confidence interval (CI) 3.16 to 6.60; 30 participants; P < 0.00001), half venous refilling time (MD 4.20 seconds, 95% CI 3.28 to 5.12; 23 participants; P < 0.00001) and total venous refilling time (MD 9.40 seconds, 95% CI 7.77 to 11.03; 23 participants; P < 0.00001) were observed in the exercise group compared with the control group. One study reported no difference between the exercise and control groups with regard to quality of life or ankle range of motion. Although muscle strength assessed by dynamometry at slow speed did not differ between the two groups in this study, variable peak torque at fast speed was lower in the control group than in the exercise group (2.8 ± 0.9 compared with -0.3 ± 0.6, P < 0.03). The incidence of venous leg ulcers, incidence of surgical intervention to treat symptoms related to CVI and exercise capacity were not assessed or reported in either of the included trials. We rated both included studies as at high risk of bias; hence, these data should be interpreted carefully. Due to the small number of studies and small sample size, we were not able to verify indirectness and publication bias. Therefore, we judged the overall quality of evidence as very low according to the GRADE approach. AUTHORS' CONCLUSIONS:There is currently insufficient evidence available to assess the efficacy of physical exercise in people with CVI. Future research into the effect of physical exercise should consider types of exercise protocols (intensity, frequency and time), sample size, blinding and homogeneity according to the severity of disease.

journal_name

Cochrane Database Syst Rev

journal_title

The Cochrane database of systematic reviews

authors

Araujo DN,Ribeiro CT,Maciel AC,Bruno SS,Fregonezi GA,Dias FA

doi

10.1002/14651858.CD010637.pub2

subject

Has Abstract

pub_date

2016-12-03 00:00:00

pages

CD010637

issn

1469-493X

journal_volume

pub_type

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Physical exercise for the treatment of non-ulcerated chronic venous insufficiency.