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QUESTION: In patients with type 2 diabetes mellitus, does exercise training improve glycaemic control (reduce glycosylated haemoglobin [HbA1c] concentrations) and reduce body mass?
Data sources
Studies in all languages were identified by searching Medline (1966 to 2000), EMBASE/Excerpta Medica (1980 to 2000), Sport Discuss (1949 to 2000), HealthSTAR (1975 to 2000), Dissertation Abstracts (1861 to 2000), and the Cochrane Controlled Trials Register; by checking the reference lists of major textbooks, review articles, and relevant articles from the search; and by contacting experts.
Study selection
Studies were selected if they were randomised controlled trials (RCTs) or controlled clinical trials (CCTs) of exercise interventions lasting ≥ 8 weeks in patients with type 2 diabetes in whom compliance could be verified by direct supervision or diaries.
Data extraction
2 investigators independently extracted data on sample size, baseline, and post-treatment means and standard …