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临床试验/NCT05936398
NCT05936398已完成不适用

Influence of Respiratory Muscle Training on Objective and Subjective Training Load Measures in Triathletes

Institute of Sport - National Research Institute, Poland1 个研究点 分布在 1 个国家目标入组 16 人开始时间: 2023年3月1日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
已完成
发起方
入组人数
16
试验地点
1
主要终点
Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (CHO3).

研究概览

简要总结

Two groups of healthy, highly trained triathletes trained respiratory muscles with one of the two methods: voluntary isocapnic hyperpnoea (VIH) or inspiratory pressure threshold loading (IPTL). The main purpose of this study was to accurately and thoroughly assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods.

Informed written consent was obtained from the all study participants. All procedures were carried out in accordance with the Declaration of Helsinki.

详细描述

The study was conducted as a randomized controlled trial with two parallel groups. Whereas participants and data collectors were aware of the allocated training method, the data analysts and laboratory technicians performing biochemistry assays were kept blinded to the allocation. The participants were assigned at random to either VIH or IPTL training group to perform RMT with progressive overload for 6 weeks.

Three training sessions (week 1, 4, 6) were monitor to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods.

Blood samples used for acid-base balance (pH), partial pressure of oxygen (pO2), partial pressure for carbon dioxide (pCO2), partial pressure for bicarbonate ion (HCO3-), and blood lactate (bLa) were collected immediately after cessation of the exercise and MPQ was presented 1' after cessation of the exercise. Blood samples for cortisol (C) and testosterone (T) were collected 5' after cessation of the exercise. The second S-Index Test was performed between minute 5 and minute 7 after cessation of the exercise. RPE was assessed 10' after cessation of the exercise. The participants again answered MPQ after 24h and 48h after the monitored RMT sessions.

Informed written consent was obtained from the all study participants. All procedures were carried out in accordance with the Declaration of Helsinki.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Other
盲法
None

入排标准

年龄范围
18 Years 至 40 Years(Adult)
性别
All
接受健康志愿者
是

入选标准

  • •valid medical certificate to compete sports professionally,
  • •lack of ongoing medication intake,
  • •lack of any medical condition,
  • •lack of previous experience with RMT,
  • •lack of previous experience with RMT,
  • •performance caliber corresponding to at HighlyTrained/Elite (Participant Classification Framework, McKay 2022),
  • •at least 6 years of triathlon training,
  • •average training volume over 12 hours per week during last 6 weeks.

排除标准

  • •any ongoing medication intake or medical condition.

研究组 & 干预措施

Voluntary Isocapnic Hyperpnoea (VIH)

Active Comparator

Group performing respiratory muscle training with Voluntary Isocapnic Hyperpnoea (VIH) method.

干预措施: Respiratory Muscle Training - VIH (Behavioral)

Inspiratory Pressure Threshold Loading (IPTL)

Active Comparator

Group performing respiratory muscle training with Inspiratory Pressure Threshold Loading (IPTL) method.

干预措施: Respiratory Muscle Training - ITPL (Behavioral)

结局指标

主要结局

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (CHO3).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in CHO3. CHO3.

Changes in cardiac indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods.

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in HR indices between methods, increase of HR and decrease of HR after the cessation on the exercise.

Collecting subjective measures to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (RPE)

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Collecting perceived exertion numbers (Rate of Perceived Exertion - RPE)

Collecting subjective measures to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (MPQ).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Collecting McGill Pain Questionnaire immediately post-session (MPQ scale).

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (lactate).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in blood lactate levels.

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (testosterone).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in testosterone.

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (cortisol).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in cortisol.

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (pH)

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in pH.

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (pO2).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in pO2.

Changes in measured blood indices to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods (pCO2).

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Differences in pre- and post- RMT session in pCO2.

Collecting local blood oxygenation during RMT to assess the potential extra load that RMT puts on athletes and determine if there are significant differences in RMT-induced load between the investigated training methods.

时间窗: Week 1, 4 and 6 after monitored RMT sessions.

Measuring SMO2 before, during and after RMT sessions to assess induced changes.

次要结局

未报告次要终点

研究者

发起方
Institute of Sport - National Research Institute, Poland
申办方类型
Other
责任方
Principal Investigator
主要研究者

Tomasz Kowalski

Specialist

Institute of Sport - National Research Institute, Poland

研究点 (1)

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