± SD (range) 76 ± 15.7 (27–92) 48.5 ± 13.07 (35–65)  Men 12 (66.7) 3 (75)  Women 6 (33.3) 1 (25) Comorbidity  Chronic obstructive pulmonary disease 6 (33.3) …  Cardiac disease 8 (44