Effects of Balloon Blowing Breathing Exercise on Respiratory Muscle Strength and Symptoms in School-age Children With Asthma.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Asthma control change
研究概览
简要总结
This study were to investigate the effects of balloon blowing breathing exercise on respiratory muscle strength and asthma symptoms in school-age children with asthma.
详细描述
Thirty school-age children with asthma aged 7 - 12 years old who were admitted at the outpatient examination room, Phramongkutklao Hospital, divided into 2 groups. The first group was 15 individuals trained with sustained maximal inspiration (SMI) breathing exercise while the second group was 15 individuals training with balloon-blowing breathing exercise. Participants were required to complete breathing exercise 5 times per week for 8 weeks. Five breathing exercises were taken for 8 weeks before and after the experiment. Physiological characteristics data, pulmonary function, respiratory muscle strength, and asthma symptoms variables were comparatively analyzed before and after training. The mean values of variables before and after the experiment of each group were analyzed using paired t-test.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 7 Years 至 12 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •has been diagnosed with asthma for at least 6 months. The severity rating is not higher than level 2, (Forced expiratory volume in one second; FEV1 is at least 80%)
- •No history of diabetes, heart disease, and musculoskeletal disease
- •Did not participate in exercise training for more than 20 minutes 3 times a week or more in the 6 months prior to the start of data collection.
排除标准
- •Patient with a history of exercise-induced asthma.
- •Recurrent of acute exacerbation
- •Cannot participate at least 80% of training program (≤ 32 sessions of 40 sessions)
- •Unwilling to continue practicing
研究组 & 干预措施
Balloon-blowing breathing
- Start by measuring the vital capacity using a balloon to determine. The width of the balloon diameter for each blow and used the value to make a balloon size control device to give to the sample group and parents to use it for home training.
- Participant sit on a chair. Inhale fully through their nose and hold for a full 3 second inhalation, then exhale through their mouth into the balloon fully. By having the balloon inflate until their touch the balloon size control device and hold the exhalation period for 1 second, cover the balloon immediately with your fingers count as 1 breath cycle, then replace the balloon immediately. Do this for 3 consecutive rounds, counted as 1 set, in each training, do a total of 3 sets, rest between sets for 1 minute, which takes about 15 minutes, 5 times per week for 8 weeks
干预措施: Balloon-blowing breathing (Other)
Sustained maximal inspiration breathing
Participants sitting in a chair, back and head close to the wall. Inhale through their nose fully and hold for 3 seconds for a full breath, then slowly exhale through their mouth and hold for 1 second of exhalation, counted as 1 breathing cycle.Do this 3 times in a row for 1 set. Practice each time doing a total of 3 sets, with 1 minute rest between sets. Participants were required to complete breathing exercise 5 times per week for 8 weeks.
干预措施: Sustained maximal inspiration breathing (Other)
结局指标
主要结局
Asthma control change
时间窗: Change from Baseline Asthma control at 8 weeks.
Asthma control was measured by Childhood Asthma Control Test (C - ACT) questionnaire. The range of C-ACT scores is 0 to 27 (27 = totally controlled, 20-26 = well controlled, \<26 = insufficiently controlled)
Respiratory muscle strength change
时间窗: Change from Baseline respiratory muscle strength at 8 weeks.
Respiratory muscle strength was assessed by measuring Maximal Inspiratory Pressure (MIP) and Maximal Expiratory Pressure (MEP) in cmH2O. The participants were in a sitting position using a portable handheld mouth pressure meter (i.e., MicroRPM) with a nose clip. For the MIP measurement, the participants were asked to exhale until they felt no air remaining in their lungs (starting with the functional residual capacity \[FRC\] point), then held the device on their mouth and inhaled forcefully for 1-2 seconds. For the MEP measurement, the participants were asked to inhale until their lungs were completely filled with air (starting with the total lung capacity \[TLC\] point), then they kept the device on their mouth and exhaled forcefully for 1-2 seconds.
次要结局
- Force Vital Capacity (FVC) change(Change from Baseline Force Vital Capacity at 8 weeks.)
- Forced expiratory volume in 1 second (FEV1) change(Change from Baseline Forced expiratory volume in 1 second at 8 weeks.)
- Maximal Voluntary Ventilation (MVV) change(Change from Baseline Maximum Voluntary Ventilation at 8 weeks.)
- The ratio of forced expiratory volume in 1 second to forced vital capacity (FEV1/FVC) change(Change from Baseline The ratio of forced expiratory volume in 1 second to forced vital capacity at 8 weeks.)
- Peak Expiratory Flow (PEF) change(Change from Baseline Peak Expiratory Flow at 8 weeks.)
- Forced Expiratory Flow from 25% to 75% of vital capacity (FEF25-75%) change(Change from Baseline Forced Expiratory Flow from 25% to 75% of vital capacity (FEF25-75%) at 8 weeks.)
研究者
Wannaporn Tongtako, Ph.D.
Principal investigator
Chulalongkorn University