The purpose of this study attempts to investigate the differences and relationships of respiratory parameters, muscle activity, and dyspnea during ADL between patients with COPD and age-matched healthy participants.
Study Type
OBSERVATIONAL
Enrollment
60
no intervention in this study
National Cheng-Kung University
Tainan, Taiwan
RECRUITINGCardiopulmonary exercise testing device
The machine analyze the breath of participants including oxygen consumption and minute ventilation volume. Oxygen consumption is reported in mL/min and minute ventilation volume is reported in L/min.
Time frame: baseline
Surface electromyography device
The surface EMG is performed to assess the maximum voluntary contraction and muscle activity of upper limb muscles and accessory inspiratory muscles during performing simulated ADL tasks. The maximal voluntary contraction (MVC) is used as the reference level of muscle activity to normalize the EMG data of performing simulated ADL tasks. The muscle activity is reported in percentage.
Time frame: baseline
The clinical Chronic Obstructive Pulmonary Disease questionnaire
This is a self-reported questionnaire to measure the impact of COPD on participants' health status. The rating scores is a 7-point scale (0=no limitation, 6=totally limited).Higher scores mean the more severe impact of COPD on participants' daily living.
Time frame: baseline
Modified Borg Scale
This is a self-reported scale to measure how much participants perceive dyspnea. The range from 0 which means no difficulty to breathe to 10 which means with maximal difficulty to breathe.
Time frame: baseline
Modified Medical Research Council
This is a five-point scale to assess the severity of breathlessness.
Time frame: baseline
EQ-5D questionnaire
This is a self-reported questionnaire for measuring generic health status
Time frame: baseline
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