Breath-Stacking and Ventilatory Muscle Strength
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 34
- 试验地点
- 2
- 主要终点
- Ventilatory Muscle Strength
研究概览
简要总结
In several diseases in which muscle weakness is a determining factor for morbidity and mortality, inspiratory muscle training has been shown to be useful in improving the function of ventilatory muscles, delaying or minimizing the development of complications due to the reduction of inspiratory muscle strength.
The breath-stacking technique emerges as an easily applicable alternative, and it can be used in poorly collaborative patients. The technique described in the literature aims to increase pulmonary volumes.
This gain occurs with the coupling of a silicone mask on the patient's face, a unidirectional valve and with the expiratory branch occluded. Thus, inspirations occur sequentially in this medium, generating pulmonary hyperinflation and increasing the contractility power of the expiratory muscles, which are fundamental for coughing. This hyperinflation also improves the peripheral air distribution in the lungs by increasing intrathoracic pressure.
The objective of this study is to evaluate the effect of the breath-stacking (BS) technique on the ventilatory muscle strength of young and healthy individuals.
详细描述
Initially, participants will be submitted to a learning session on the evaluation of ventilatory muscle strength and the breath-stacking technique. Between 24-72 hours after the learning, the evaluation of the muscular muscular strength will be performed through the maximal inspiratory pressure (MIP) and the maximum expiratory pressure (MEP). PI max will be measured from a maximum expiration; While PE max will be measured from a maximum inspiration, using a digital manovacuometer (MVD 300®)
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 24 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •No signs and symptoms of pulmonary diseases, normal ventilatory muscle strength and agreement to participate and sign the informed consent form.
排除标准
- •Presenting neuromuscular diseases, claustrophobia, ruptured eardrum, history of spontaneous pneumothorax and playing wind instruments or being a singer. Sample loss will be considered as non-attendance at all training sessions.
研究组 & 干预措施
Breath-Stacking
Participants will be seated, with their elbows resting on the table, holding the face mask attached to a T-tube and a one-way valve. They will be instructed to inspire and force the expiration inside the mask. The training will be conducted three times a week for a period of four weeks, totaling twelve sessions. The breath-stacking application protocol will consist of three three-minute series, with a three-minute recovery interval between each series, obtaining a total time of fifteen minutes in each session
干预措施: Breath-Stacking (Other)
结局指标
主要结局
Ventilatory Muscle Strength
时间窗: four weeks
Maximum inspiratory and expiratory pressure
次要结局
未报告次要终点
研究者
Fabrício Edler Macagnan
PhD
Federal University of Health Science of Porto Alegre