Articles Vol. 66 No. 5 20/09/2025

4. CARDIORESPIRATORY RESPONSE DURING THE 1-MIN SIT TO STAND TEST IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE

Le Phi Hao1,2, Nguyen Thi Thu Hang1,2
1 Hai Duong Medical Technical University
2 Trường Đại học Kỹ thuật Y tế Hải Dương
Corresponding author: thuhanghmtu@gmail.com
DOI: 10.52163/yhc.v66i5.3088
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Keywords
1-minute sit-to-stand test, chronic obstructive pulmonary disease, cardiorespiratory indices.
Abstract

Objective: Describe the changes in cardiovascular and respiratory indices during the 1-minute sit-to-stand test in patients with chronic obstructive pulmonary disease.

Subjects and methods: Cross-sectional study of 122 patients with stable chronic obstructive pulmonary disease. Each participant performed two 1-minute sit-to-stand test tests 30 minutes to 1 hour apart. The measurements recorded during the second test were included in the data analysis. Peripheral oxygen saturation (SpO2) and heart rate were measured using a finger pulse oximeter and the difference between the baseline (before the start of the test) and the final (at the end of the test) values was calculated. Exercise-induced desaturation was considered whenever a decrease in SpO2 of ≥ 4% occurred. Dyspnea was assessed immediately after each test using a modified Borg scale.

Results: After the test, the mean heart rate change was 14.3 ± 3.6 beats, with severe patients having a slightly greater heart rate change than mild patients (difference 1.7 ± 0.7; p = 0.01). Oxygen saturation decreased significantly in the severe group and to a greater extent than in the mild group, p < 0.001.

Conclusions: The 1-minute sit-to-stand test causes less hemodynamic stress for patients with chronic obstructive pulmonary disease.

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