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KMID : 0367020080200040652
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Journal of Korean Academic of Adult Nursing
2008 Volume.20 No. 4 p.652 ~ p.663
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An Explanatory Model on Functional Capacity in Patients with Chronic Obstructive Pulmonary Disease
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Bang So-Youn
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Abstract
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Purpose: This study was conducted to develop and test an explanatory model on functional capacity in patients with chronic obstructive pulmonary disease using path analysis.
Methods: Data were collected from 149 chronic obstructive pulmonary disease patients using 6-minute walk test, measurement of oxygen saturation, pulmonary function test, and self-reported questionnaires from June to October, 2005. The collected data were analyzed using SPSS/WIN 12.0 program and AMOS/WIN 4.0 program.
Results: The overall fitness indices of modified model were good(x2 = 14.324, p = .281 GFI = .981, RMSEA = .006, AGFI = .944, NFI = .927, NNFI = .999, CFI = .999, PNFI = .613, x2/df = 1.194). Functional capacity was influenced directly by age(β = -.304, p = .000), dyspnea(β = -.278, p = .000), self-efficacy(β = .240, p = .000), social support(β = .175, p = .004), pulmonary function(β = .169, p = .008), and oxygen saturation(β = .099, p = .048). These variables explained 39.3% in functional capacity.
Conclusion: The findings of this study suggest that comprehensive nursing interventions should focus on decreasing dyspnea and increasing self-efficacy, social support, and oxygen saturation. In this perspective, pulmonary rehabilitation would be an effective strategy for improving functional capacity in patients with chronic obstructive pulmonary disease.
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KEYWORD
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Chronic obstructive pulmonary disease, Functional capacity
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