Internal and Emergency Medicine · 2011 · 15 citations · 20 references
MedicinePhysiologyRehabilitation MedicineExercise PhysiologyPhysical TherapyPulmonary RehabilitationBreathing ExercisesCardiopulmonary Exercise TestingChronic Obstructive Pulmonary DiseaseChronic Obstructive Pulmonary Disease RehabilitationExercise TrainingRespiratory RehabilitationBreathing Exercise TrainingChronic Obstructive Pulmonary Disease Exercise PrescriptionDynamic HyperinflationDynamic Hyperinflation During ExerciseExercise Training AdaptationLung HyperinflationPulmonary Rehabilitation For DyspneaRespiratory Muscle Strengthening
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Psychophysical bases of perceived exertion
Gunnar Borg · Medicine & Science in Sports & Exercise · 1982 · 16.4K citations
Validation of a combined comorbidity index
Mary E. Charlson, Ted P. Szatrowski, Janey C. Peterson et al. · Journal of Clinical Epidemiology · 1994 · 6.6K citations