| Summary: | 碩士 === 台北醫學院 === 護理學研究所 === 90 === The purpose of this study were to: (1) Explore the effects of duration-increased and intensity-increased exercise training in pulmonary function (FEV1%pred), peak VO2, maximal workload, dyspnea, and quality of life for patients with COPD. (2) Comparison of duration-increased and intensity-increased exercise training effectiveness in pulmonary function (FEV1%pred), peak VO2, maximal workload, dyspnea, and quality of life for patients with COPD.
A quasi-experimental design was used to guide the study. Subjects who met the selection criteria were referred from chest medical outpatient department of three medical centers in Taipei. Twenty-two patients enrolled in our study and were randomly assigned into either a duration-increased group (n=10) or an intensity-increased group (n=12). A graded treadmill exercise test was performed for each subject to determine his/her maximal workload and the exercise prescription. The exercise training program was three times per week for eight weeks. Pulmonary function (FEV1%pred), peak VO2, maximal workload, dyspnea, and quality of life were measured at pre- and post-exercise training. Percentage, mean, standard deviation, Mann-Whitney test and Wilcoxon Signed Rank test were used for data analysis.
The results of research were shown as follow: (1) Pulmonary function (FEV1%pred) and peak VO2 were not improved significantly in both groups. (2) After an 8-week exercise training, the maximal workload (3.80 ±0.92 vs. 5.46 ±1.29 METs, Z=-2.80, p=0.01) and Borg dyspnea index under 3METs exercise workload (3.20 ±1.32 vs. 2.10 ±0.57, Z=-2.23, p=0.03) significantly improved in duration-increased group. (3) after an 8-week exercise training, a significant improvement was observed in maximal workload (3.80 ±0.63 vs. 5.47 ±1.01 METs, Z=-2.94, p=0.003), Borg dyspnea index under 3METs exercise workload (3.08 ±1.38 vs. 1.13 ±1.05, Z=-2.83, p=0.01), overall dyspnea score (7.67 ±2.10 vs. 9.67 ±1.83, Z=-2.85, p=0.004), and quality of life (62.68 ±15.41 vs. 78.31 ±11.80, Z=-2.67, p=0.01) in intensity-increased group. (4) A significant difference in improvement of all measured variables was not observed between duration-increased group and intensity-increased group.
Base of the result of study, it was concluded that both duration-increased and intensity-increased exercise training programs had benefic for patients with COPD, particularly in increasing maximal workload and decreasing perceived dyspnea under 3METs workload.
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