Association Between Life-Space Mobility and Activities of Daily Living in Patients with COPD: A Cross-Sectional Study

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Satoshi Saruwatari, Kunihiko Anami, Rioko Oiwa, Hisashi Watanabe, Jun Horie
Purpose:

Therefore, this study aimed to clarify the relationship among Life-space assessment test (LSA), physical function, psychological function and ADL.

Methods:

This was a cross-sectional study. The participants were 238 stable outpatient patients with chronic obstructive pulmonary disease (207 males, mean age 74.0 ± 9.1 years). Measurements included the life-space assessment test, respiratory function, grip strength, weight-adjusted knee extension strength, 6-minute walk test (6MWT), hospital anxiety depression scale, and Nagasaki university respiratory ADL (NRADL). The relationship between the LSA and each measurement item was analyzed using Pearson's correlation coefficient. Subsequently, logistic regression analysis was performed with LSA as the dependent variable and age, gender, 6MWT, and NRADL score as independent variables. The significance level was set at 5%. IBM SPSS version 25 was used for statistical analyses.

Results:

The mean value of LSA was 80.2 ± 28.0 points. 43 individuals (18.1%) had an LSA score of less than 60, indicating low activity levels. The mean value of LSA was 80.2 ± 28.0 points. 43 individuals (18.1%) had an LSA score of less than 60, indicating low activity levels. The indicators that exhibited significant correlations with LSA were Age (r=-0.341, p0.001), grip strength (r=0.374, p0.001), weight-adjusted knee extension strength (r=0.310, p0.001), 6MWT (r=0.630, p0.001), HADS-depression (r=-0.428, p0.001), and NRADL (r=0.581, p0.001). In the logistic regression analysis, age (OR=0.924, 95%CI=0.869-0.983), depression (OR=0.262, 95%CI=0.108-0.633), and NRADL (OR=1.046, 95%CI=1.018-1.075) were selected.

Conclusion(s):

The results of this study suggested that age, physical function, depression, and ADL were associated with the life-space assessment test in patients with COPD.

Implications:

The life-space mobility of Japanese patients with COPD may be influenced by a range of complex factors, indicating the necessity for comprehensive pulmonary rehabilitation interventions.

Funding acknowledgements:
This research project was supported by JSPS KAKENHI grant (Project no. 23K10332). The authors declare no conflicts of interest.
Keywords:
COPD
Life-space assessment test
ADL
Primary topic:
Primary health care
Second topic:
Cardiorespiratory
Third topic:
Health promotion and wellbeing/healthy ageing/physical activity
Did this work require ethics approval?:
Yes
Name the institution and ethics committee that approved your work:
Choseido Clinic Ethics Committee
Provide the ethics approval number:
2023-1
Has any of this material been/due to be published or presented at another national or international conference prior to the World Physiotherapy Congress 2025?:
No

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