Comparative Effects of Vocal and Breathing Exercises on Respiratory Function and Trunk Stability in Women
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 50
- 试验地点
- 4
- 主要终点
- Forced expiratory volume (FEV₁)
研究概览
简要总结
The goal of this randomized clinical trial is to investigate whether vocal exercises or breathing exercises improve respiratory function and trunk stability in healthy adult women aged 18-65. The main questions it aims to answer are:
Do vocal exercises improve respiratory function, respiratory muscle strength, endurance, and trunk stability? Do breathing exercises improve respiratory function, respiratory muscle strength, and endurance? Researchers will compare the vocal exercises group to the breathing exercises group to determine if one intervention has a superior effect on lung function, respiratory muscle performance, and trunk stability.
Participants will:
Perform a 6-week program of either vocal exercises or breathing exercises, with sessions twice per week, 30 minutes each.
Complete pre- and post-intervention assessments including thoracic excursion, breath-hold tests, spirometry, Dynamic Neuromuscular Stabilization (DNS) tests, and trunk stability tests using the Stabilizer pressure biofeedback device.
Engage with instructional videos and guidance through a closed social media group, allowing questions and feedback to ensure correct technique.
详细描述
Study Design This study was a randomized controlled trial designed to evaluate the effects of vocal exercises versus breathing exercises on respiratory function and trunk stability in adult women. Ethical approval was obtained from the [name of ethics committee] (Approval No.: 2024 12 09 MNL-KIN (M)-2024-726). All participants provided written informed consent prior to enrollment, in accordance with the Declaration of Helsinki.
Participants Fifty healthy women aged 18-65 years were recruited via an online questionnaire distributed on social media. Inclusion criteria were female sex, age 18-65 years, no prior engagement in structured breathing or vocal training in the previous six months, and absence of acute or chronic respiratory infection. Exclusion criteria included inability to attend in-person assessments or failure to meet age or health criteria. Baseline demographic characteristics (age, weight, height, BMI) were comparable between groups.
Randomization and Allocation Eligible participants (n = 50) were randomly assigned in a 1:1 ratio to either the Vocal Exercises Group (VE, n = 25) or the Breathing Exercises Group (BE, n = 25) using a computer-generated random sequence. Both interventions lasted six weeks, with participants completing sessions twice per week for 30 minutes each.
Intervention
Breathing Exercises Group
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •female sex;
- •age 18-65 years;
- •no engagement in breathing exercises for at least six months;
- •no engagement in vocal training for at least six months;
排除标准
- •acute respiratory diseases.
- •chronic respiratory diseases
结局指标
主要结局
Forced expiratory volume (FEV₁)
时间窗: 6 weeks
Forced expiratory volume (FEV₁) was measured in liters in one second (L/s) using the Contec Spirometer SP80B. Three trials were performed per participant, with the mean used for analysis.
Stange test
时间窗: 6 weeks
The Stange test (breath-hold after maximal inhalation) was performed in a seated position. Before testing, participants were instructed to breathe calmly, and breath-hold duration (in seconds) was recorded using a stopwatch.
Forced vital capacity (FVC)
时间窗: 6 weeks
Forced vital capacity (FVC) was measured in liters (L) with Contec Spirometer SP80B. Three trials were performed per participant, with the mean used for analysis.
Peak expiratory flow (PEF)
时间窗: 6 weeks
Peak expiratory flow (PEF) was measured in liters per one second (L/s) using the Contec Spirometer SP80B. Three trials were performed per participant, with the mean used for analysis.
Genchi test
时间窗: 6 weeks
The Genchi test (breath-hold after maximal exhalation) waas performed in a seated position. Before testing, participants were instructed to breathe calmly, and breath-hold duration (in seconds) was recorded using a stopwatch.
次要结局
- Dynamic Neuromuscular Stabilization (DNS)(6 weeks)
- Trunk Stability Tests(6 weeks)