![]() ![]() Studies did not provide information on adverse effects. Risk of bias was high in one and unclear risk in five studies regarding the randomisation process, high for 11 studies regarding allocation concealment, high for all 21 studies regarding blinding, and high for three studies and unclear for five studies regarding attrition. Comparator groups were varied and included normal care education and attention controls such as home visits, sham gel and wait list controls. ![]() There were large variations in the exercise programme's content, mode of delivery, frequency and duration, participant's symptoms, duration of symptoms, outcomes measured, methodological quality and reporting. Twenty‐one trials (2372 participants) met the inclusion criteria for quantitative synthesis. ![]()
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