Changes in respiratory and accessory muscle activities and cardiovascular functions during breathing exercise with and without device in healthy adults
Completed
- Conditions
- Healthy adultsrespiratory musclebreathing exerciseselectromyographycardiovascular systemrespiratory system
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 45
Inclusion Criteria
1. Body mass index; BMI = 18.5-22.9 kg/m2
2. Have normal spirometry including Forced vital capacity (FVC), Forced expiratory volume in one second (FEV1) and FEV1/FVC
Exclusion Criteria
1. Have cardiovascular and respiratory disease
2. Have sign and symptoms of cardiovascular and respiratory disease in 1 month
3. Have deformity of spine and chest wall
4. Take caffeine and/or alcohol and/or cannabis within 4 hour before test in 2nd day
5. High blood pressure with uncontrol more than 140/90 mmHg.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method %Maximal voluntary contraction at baseline, 3rd, 6th and 9th of breathing %Maximal voluntary contraction of sternocleidomastoid, superior external intercostal and inferior external intercostal muscles,Hemodynamic measurement at baseline, 3rd, 6th and 9th of breathing heart rate (HR), cardiac output (CO), stroke volume (SV) and ejection fraction (EF),Heart rate variability; HRV at baseline, 3rd, 6th and 9th of breathing standard deviation of all normal to normal R-R (NN) intervals, square root of the mean of the squares of successive NN interval differences, High frequency activity , Low frequency activity, LF/HF,Breathlessness at pre and post test Modified Borg Dyspnea Scale
- Secondary Outcome Measures
Name Time Method N/A N/A N/A