CORRELATION OF THE BODY WEIGHT-WALKING DISTANCE WITH HEALTH-RELATED QUALITY OF LIFE IN PATIENTS WITH COPD: A COMPARATIVE STUDY WITH THE 6-MINUTE WALK DISTANCE

Authors : Rıdvan Aktan, Sevgi Özalevli, Aylin Özgen Alpaydın

Pages : 68-72

Doi:10.52831/kjhs.1671676

View : 79 | Download : 57

Publication Date : 2025-08-31

Article Type : Research Paper

Abstract :Objective: This study aimed to examine the relationship between the 6-minute walk test distance – body weight product (i.e. 6-minute walk work-6MWORK) as an improved outcome measure with health-related quality of life and to compare this relationship with the 6-minute walk test distance. Method: A total of 81 patients (mean age: 61.0±4.6 years) with moderate-to-severe COPD were included in this retrospective cross-sectional study. This study conducted between January 2025 and March 2025. The patients\\\' clinic characteristics, lung function tests, 6-minute walk test distance, and health-related quality of life measured by Saint George Respiratory Questionnaire (SGRQ) outcomes were recorded. The 6MWORK was calculated as product of 6-minute walk test distance and body weight by multiplying each other and recorded as kg.meters (kg.m). Correlation coefficients and simple linear regressions were evaluated between SGRQ with 6-minute walk test distance and 6MWORK. Results: The mean 6-minute walk test distance and 6MWORK of patients were 441.5±83.3 m and 33176.2±9865.8 kg.m, respectively. The 6MWORK showed stronger correlations with SGRQ sub-domains (r=−.582 to −.641, p <.001) compared to the 6-minute walk test distance (r=−.381 to −.455, p<.001). Moreover, according to simple linear regression analysis, the coefficient of determination (R2) between SGRQ total score and the 6-minute walk test distance was .207, whereas it was .411 with 6MWORK. Conclusion: Our findings suggest that the use of 6MWORK instead of simple distance covered in a 6-minute walk test is more advantageous in patients with moderate-to-severe COPD due to its relationship with quality of life. Thus, the 6MWORK may be a more effective outcome for estimating functional capacity in patients with moderate-to-severe COPD. Future studies with larger, more diverse populations and longitudinal designs are needed.
Keywords : KOAH, Yaşam Kalitesi, Altı Dakika Yürüme Testi, Vücut Ağırlığı

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