Gosselink, R.

muscle inspiratory inspiratory muscle training inspiratory muscle strength exercise training study patient inspiratory muscle weakness exercise capacity effect group strength capacity weakness analysis meta-analysi outcome endurance efficacy respir patient characteristics effect-size disease subgroup analysis treatment group quality dyspnoea inspiratory alveolar pressure limitation treatment loading chest russell sage foundation characteristic exercise performance ventilatory limitation subgroup rehabilitation adjunct control table pressure ventilatory measure baseline homogeneity test statistic inspiratory muscle endurance threshold model hedges lv performance review lotter threshold loading difference cooper h improvement outcome measures research synthesis airflow limitation interval factor larson copd patients device ventilatory muscle training finding significance weighting factor erasmus university rotterdam function 15 studies 12 mwd confidence 12- min muscle weakness exercise capacity 6- training loads minute ventilation