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...Effects of home based breathing exercises in subjects with copd yufan lu peijun li ning zhengrong wang jian xiaodan liu and weibing wu background we sought to investigate the on pul monary function respiratory muscle strength exercise capacity dyspnea health related qual ity life patients methods all randomized controlled trials involving use as an intervention were searched pubmed embase webofscience ebsco cnki andwangfangdatadatabasesfromjanuary december two researchers independently extracted data assessed quality literature that met inclusion criteria results a total studies included consisted diaphragmatic yoga gymnastics singing meta analysis showed compared con trol group had significant percent predicted fev mean difference ci p fvc maximum inspiratory pressures expiratory min walk distance modifiedmedicalresearchcouncildyspneascale meandifference...