In the intervention group, incremental shuttle walk test (ISWT) improved by 56.7 m
(p Z 0.03), endurance walk test (EWT) by 193.3 m (p Z 0.01), Leicester Cough Questionnaire
(LCQ) improved by 2.6units (p < 0.001) and St. George’s Respiratory Questionnaire (SGRQ) by
8units (p < 0.001).