Effect of Home-base Exercise With Conical-PEP Device on Physical Performance and Quality of Life in COPD (HBEcPEP)

Effect of Home-base Exercise With Conical-PEP Device on Physical Performance and Quality of Life in COPD

Effect of Home-base Exercise Program With a Conical Positive Expiratory Pressure Device on Physical Performance and Health Related Quality of Life in Patients With Chronic Obstructive Pulmonary Disease

The aim of this study to investigate the efficacy of a home-base exercise program with a new conical PEP device on physical performance and health related quality of life in COPD patients.

The key pathophysiology of COPD is expiratory flow limit and hyperinflation that is a major factor related exertional dyspnea and exercise limitation. When expiratory minute volume( V ̇E) raise up while exercise, respiratory response by increase respiratory rate (RR) and tidal volume (VT), force exhalation occur lead to develop premature airway closer. These generate dynamic air tapping breath by breath and result in dynamic hyperinflation (DH). The DH limits VT expansion, increase respiratory muscle load, and it is a major cause related dyspnea and exercise termination. Furthermore, Pre-inflammatory products from the COPD lung contribute to another system, and provoke systemic inflammation lead to nutritional abnormalities, weight loss, skeletal muscle dysfunction, osteo-skeletal effect, cardiovascular effect and psychological effect. All of these affect the exercise tolerance and gradually affect physical activity and health-related quality of life (HRQL) as well. COPD GOLD guideline states that goal for treatments of stable COPD comprise of relive symptoms, improve exercise tolerance, improve health status, prevent disease progression and reduce mortality. Several evidences have suggested an effect of pulmonary rehabilitation (PR) in patient with stable COPD and following acute exacerbation. Strong evidences reported that the PR program could improve exercise tolerance, reduce dyspnea, decrease fatigue and improve health-related quality of life. The core stone of PR is an exercise program. Several types of exercise were published such as endurance exercise, interval exercise, strengthening exercise, respiratory muscle strengthening and breathing exercise. Most COPD patient stop exercise causes from dyspnea that related DH development during exercise. Previous studies reported various strategies to reduce DH development during exercise for extending exercise time or increase exercise capacity in immediate effect such as bronchodilators , hyperoxic breathing, heliox breathing, positive pressure therapy by non-invasive positive pressure ventilation (NIPPV), by pursed lip breathing (PLB) and by positive expiratory pressure (PEP) device. The PEP therapy have been conventionally using for reduce premature airway closer by moving equal pressure point from distal to proximal, improve gas exchange and improve secretion clearance. In the past decade, the knowledge of dynamic hyperinflation in COPD patient has rapidly glowed up. The PEP device and PLB have used to reduce DH development during exercise that reported in only 5 studies. They expected that delay DH development, it may delay exertional dyspnea, and may result in improve exercise capacity. Three studies reported DH parameter at pre and post exercise. Results indicated that using the PEP device can reduce DH when measuring immediate post exercise. However, effects of positive pressure therapy (PEP device and PLB) on exercise capacity were also inconclusive. But three studies showed positive effect of PEP therapy on exercise capacity. Training effect of PEP therapy on physical performance and quality of life was present in two studies. The first study showed the benefit of breathing retraining (including PLB, and other breathing techniques) that were integrated to all daily activities and exercise program, superior than control group in peak oxygen consumption after 7th week of exercise program. The second study applied PLB to reduce DH during exercise program. They found that after ten sessions (within 3 to 4 weeks) of program, both PLB and control groups significantly improve 6 minute walk distance and quality of life, but non-significant effect between groups. To date there was only two studies of PEP therapy applying to exercise program, and results were not conclusive. In spite of the PLB was wildly used, but positive pressure from this technique was reported about 5 cm H2O, it is lower boundary of therapeutic pressure range (5 to 20 cm H2O), this may result in a non-success of DH reduction. Consequently, The PEP device may be a convenient alternative way to generate positive pressure within therapeutic range for reduces DH during exercise or daily activities living. This may increase patient's physical performance and quality of life greater that exercise alone.

Chronic Obstructive Pulmonary Disease, Exercise Therapy, Positive Expiratory Pressure, Physical Fitness, Quality of Life

Patients will receive intervention as following A home-base exercise program Health education Breathing strategies for self secretion clearance The medication following the COPD GOLD guidelines (2015)

Patients will receive intervention as following A home-base exercise program with using a non-re-breathing face mask with conical-PEP device during an interval endurance spot marching exercise Health education Breathing strategies for self secretion clearance The medication following the COPD GOLD guidelines (2015)

Participant will use a non-re-breathing face mask with conical-PEP device during an interval endurance spot marching exercise.

Duration of the program is 8 weeks A frequency of exercise session is 3 to 5 sessions per week A content of each exercise session includes Stretching exercise (shoulder, trunk and leg muscles) to warm up for 5 to 10 minutes Interval endurance exercise using a spot marching movement for 30 to 40 minutes. In each phase of spot marching exercise, patients will perform the exercise from 0 to 3 or 4 score of 10 score of a modified dyspnea Borg scale, they will record exercise the exercise duration time. Then, they will be required to rest until a modified dyspnea Borg scale < 1 score. Next, they will perform the next interval of spot marching exercise with the same protocol. Stretching exercise (shoulder, trunk and leg muscles) to cool down for 5 to 10 minutes

Health education include Knowledge of COPD disease Smoking status and smoking cessation Medication correctly Self dyspnea management Basic nutrition for COPD

Using a modified active cycle breathing technique (mACBT) include Control breathing Pursed lip breathing (PLB) Slow inhale with sustain thoracic expansion for 3 sec and exhale with PLB technique Force expiratory technique (FET) with low to medium lung volume Huffing or coughing

Patients will receive medications following the COPD GOLD guidelines (2015). The medication names were listed below Bata 2 agonist (short acting); Salbutamol (oral or inhaler), Terbutaline (oral) Bata 2 agonist (long acting); Bambuterol (oral), Procaterol (oral), Salmeterol (inhaler), Formoterol (inhaler) Xanthine derivative (sustained release theophylline) Anticholinergic; Tiotropium(inhaler), Ipratropium bromide (inhaler) Corticosteroids; Beclomethasone (inhaler), Budesonide(inhaler), Fluticasone(inhaler) Combined anticholinergic+ Beta 2-agonist; Ipratropium+fenoterol (inhaler), Ipratropium+salbutamol (inhaler) Combined Beta 2-agonist+ corticosteroids; Formoterol+ Budesonide(inhaler), Salmeterol+ Fluticasone(inhaler)

The ISMT is combination movement of high arm and leg raising on the spot . Patient will start ISMT with 60 or 70 steps/minute and increase 10 to 20 steps/minute every 2 minutes until symptom limited. Aim of this test is to fine maximum step rate and step rate which patient perceive at least moderate dyspnea or breathlessness. The proper step rate will use in endurance spot marching exercise test (ESMT).

The ESMT is a physical performance parameter. The exercise capacity of this test is endurance exercise time. Patents will perform ESMT with constant step rate until symptom limit or exercise time up to 25 minute.

The end exercise IC reflects dynamic hyperinflation. patient will be measured the end exercise IC at immediate post ESMT.

The resting SVC reflect dynamic hyperinflation.patient will be measured the end exercise IC at immediate post ESMT.

Patients will be continuously measured resting EKG and photoplethysmography (PPG) for 20 minutes. The pulse transit time will be collected from EKG and PPG, then the pulse transit time in each patient will divide by a length of their arm (from jugular notch to tip of index finger )

Patients will be continuously measured EKG during ESMT. The investigators will collect end exercise HR at immediate post ESMT and every minute in recovery period for 10 minutes.

Patients will rate their breathlessness using 10 scale of modified Borg dyspnea scale at pre-ESMT, during ESMT every minute, end ESMT and every minute in recovery period for 10 minute.

Patients will be recorded RR at pre-ESMT, during ESMT every minute, end ESMT and every minute in recovery period for 10 minutes.

Patients will be recorded minute ventilation at pre-ESMT, end ESMT and end recovery period for 10 minutes.

Patients will be recorded SpO2 at pre-ESMT, during ESMT every minute, end ESMT and every minute in recovery period for 10 minutes.

Patients will be recorded PetCO2 at pre-ESMT, during ESMT every minute, end ESMT and every minute in recovery period for 10 minutes.

Patients will be recorded SBP at pre-ESMT, immediate end ESMT and every 2 minutes in recovery period for 10 minutes.

Patients will be recorded DBP at pre-ESMT, immediate end ESMT and every 2 minutes in recovery period for 10 minutes.

Patients will be recorded MAP at pre-ESMT, immediate end ESMT and every 2 minutes in recovery period for 10 minutes.

Patients will be continuously measured EKG and photoplethysmography (PPG) at pre ESMT during ESMT and recovery period for 10 minutes. The pulse transit time will be collected from EKG and PPG at end of ESMT, then the pulse transit time in each patient will divide by a length of their arm (from jugular notch to tip of index finger )

Patients will rate their leg fatigue using 10 scale of modified Borg leg fatigue scale at pre-ESMT, during ESMT every minute, end ESMT and every minute in recovery period for 10 minute.

Patients will be continuously measured HR during 6MWT. The investigators will collect end exercise HR at immediate post 6MWT and every minute in recovery period for 10 minutes.

Patients will rate their breathlessness using 10 scale of modified Borg dyspnea scale at pre-6MWT, during 6MWT every minute, end 6MWT and every minute in recovery period for 10 minute.

Patients will be recorded RR at pre-6MWT, during 6MWT every minute, end 6MWT and every minute in recovery period for 10 minutes.

Patients will be recorded SpO2 at pre-6MWT, during 6MWT every minute, end 6MWT and every minute in recovery period for 10 minutes.

Patients will be recorded PetCO2 at pre-6MWT, during 6MWT every minute, end 6MWT and every minute in recovery period for 10 minutes.

Patients will be recorded SBP at pre-6MWT, immediate end 6MWT and every 2 minutes in recovery period for 10 minutes.

Patients will be recorded DBP at pre-6MWT, immediate end 6MWT and every 2 minutes in recovery period for 10 minutes.

Patients will be recorded MAP at pre-6MWT, immediate end 6MWT and every 2 minutes in recovery period for 10 minutes.

Patients will rate their leg fatigue using 10 scale of modified Borg leg fatigue scale at pre-6MWT, during 6MWT every minute, end 6MWT and every minute in recovery period for 10 minute.

The hand grip force represents general health status of patients. patient will be assessed both dominated and non-dominated hands.

patient will perform spirometry in FVC maneuver to record post bronco-dilator force vital capacity following American Thoracic Society (ATS) /European Respiratory Society (ERS) statement for spirometry (2005).

patient will perform spirometry in FVC maneuver to record post bronco-dilator FEV1 following ATS/ERS statement for spirometry (2005).

patient will perform spirometry in FVC maneuver to record post bronco-dilator FEV1/FVC ratio following ATS/ERS statement for spirometry (2005).

patient will perform spirometry in FVC maneuver to record post bronco-dilator PEF following ATS/ERS statement for spirometry (2005).

Patients will maximum inhale as fast as possible from functional residual capacity (FRC) to total lung capacity (TLC).

The BDI is one of dyspnea parameters (questionnaire). Three dimension questions include; 1.effect of daily function on dyspnea, 2. effect of magnitude of task on dyspnea and 3. effect of magnitude off effort on dyspnea.

The TDI assesses change of dyspnea perception from the BDI in each dimensions. Patient will rate score from -6 to +6 (positive score reflect improve of dyspnea and negative score reflect worse dyspnea).

The number of step per day represents physical activity using a pedometer. Patient will contact the pedometer from early wake up to go to bed with 10 day hours for 14 day before starting the home-base exercise program, post the home-base exercise program and 5th months . The researcher will record the regular step per day for 7 days to analysis.

Patient will be collected the rate of using short acting bronco-dilator per week as 2 months ago of the time frame.

Definition of exacerbation is a cause of admission to the hospital emergency room or admitting to hospital.

Inclusion Criteria: COPD patients (with FEV1 ≤70% predicted) Exclusion Criteria: Exacerbate within a month prior, which was a cause of admission to the hospital emergency room or been admitted to hospital. Are changed medicines within a month ago. Have been used home oxygen therapy. Have musculoskeletal or neuromuscular problem affecting balance and walking. and spot marching exercise. Using walking aid device.