Effects of age on physiological and psychological functioning among COPD patients in an exercise program.

Older adults with chronic illness may be at greater risk of psychological distress than healthy older adults. This study examined the effect of age on physiological and psychological functioning of exercising older adults with chronic obstructive pulmonary disease (COPD). Sixty-four older adults (mean age = 67.4 plus or minus 7.0; 35 male, 29 female) with COPD were included in the study. All subjects participated in a 30-day rehabilitation program consisting of exercise (walking, stationary bicycle, pool exercises), education, and stress management. Subjects underwent assessments of physiological functioning (e.g., bicycle ergometry,12-minute walk), cognitive status (e.g., memory, psychomotor speed, concentration), and psychological well-being (e.g., anxiety, depression, psychiatric symptoms) before and after the exercise program. Results were analyzed by repeated measures multivariate analysis of variance, with age (median split = 67.5 years) as a between-subject factor. Although the exercise program appeared to have a greater effect on physiological functioning and on concentration and short-term memory of younger-old subjects, both groups of subjects achieved gains in physiological functioning, and psychological well-being.