Warm-up of the Inspiratory Musculature and Its Impact on Physiological Parameters and Swimming Performance: Exploration of Intensities Based on Maximal Inspiratory Pressure
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 52
研究概览
简要总结
Objective To evaluate the acute effect of four inspiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure [MIP]) on 100 m freestyle performance, and to analyze their impact on heart rate, blood lactate concentration, perceived exertion, and dyspnea in trained swimmers.
Methods A randomized, crossover, double-blind experimental study was conducted. Participants were swimmers aged ≥18 years, with no respiratory or musculoskeletal pathology.
Each participant completed, in sessions separated by at least three days, an inspiratory muscle warm-up consisting of 30 breaths against resistive loads set at 15%, 40%, 60%, and 80% of their MIP, previously determined using standardized procedures.
Following each intervention, participants performed a maximal 100 m freestyle test. The following variables were recorded:
Swimming time Heart rate (during and post-exercise) Post-exercise capillary blood lactate concentration Rating of perceived exertion (Borg scale) Dyspnea (Dyspnea-12)
Conclusions This study will help identify the optimal inspiratory warm-up intensity to enhance swimming performance.
详细描述
Inspiratory warm-up
An intervention performed prior to exercise consisting of breathing against resistance to activate the inspiratory muscles (mainly the diaphragm and accessory respiratory muscles) with the aim of enhancing their performance during subsequent effort.
Maximal Inspiratory Pressure (MIP)
The maximum pressure that an individual can generate during a forceful inspiration against an occluded airway. It is an indicator of inspiratory muscle strength and is used to prescribe training intensity.
Relative intensities (15%, 40%, 60%, 80% of MIP)
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Participants of both sexes, aged over 18 years.
- •Minimum swimming training frequency of at least two sessions per week, with a minimum duration of 30 minutes per session, consistently maintained over the last three months.
排除标准
- •Current or previous diagnosis of respiratory diseases.
- •Musculoskeletal injuries limiting the ability to perform a 100-meter swimming test.
- •Participation in inspiratory muscle training programs within the last six months.
研究组 & 干预措施
IMT: 15%
The study will apply four respiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure) to compare their acute effects on these variables. This graded loading approach will allow identification of the optimal dose capable of maximizing diaphragmatic neuromuscular activation without inducing early fatigue, leveraging the post-activation potentiation phenomenon to improve respiratory efficiency and swimming performance.
干预措施: POWERbreath (Device)
IMT:40%
The study will apply four respiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure) to compare their acute effects on these variables. This graded loading approach will allow identification of the optimal dose capable of maximizing diaphragmatic neuromuscular activation without inducing early fatigue, leveraging the post-activation potentiation phenomenon to improve respiratory efficiency and swimming performance.
干预措施: POWERbreath (Device)
IMT: 60%
The study will apply four respiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure) to compare their acute effects on these variables. This graded loading approach will allow identification of the optimal dose capable of maximizing diaphragmatic neuromuscular activation without inducing early fatigue, leveraging the post-activation potentiation phenomenon to improve respiratory efficiency and swimming performance.
干预措施: POWERbreath (Device)
IMT: 80%
The study will apply four respiratory warm-up intensities (15%, 40%, 60%, and 80% of maximal inspiratory pressure) to compare their acute effects on these variables. This graded loading approach will allow identification of the optimal dose capable of maximizing diaphragmatic neuromuscular activation without inducing early fatigue, leveraging the post-activation potentiation phenomenon to improve respiratory efficiency and swimming performance.
干预措施: POWERbreath (Device)
研究者
Agustin Velazquez Córdoba
Principal Investigator
Universidad Rey Juan Carlos