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Inspiratory Muscle Training (IMT) in Athletes

This study has been completed.
Information provided by:
Saarland University Identifier:
First received: August 28, 2009
Last updated: January 4, 2011
Last verified: August 2009
The purpose of this study is to determine weather well trained athletes benefit from inspiratory (respiratory) muscle training.

Condition Intervention
Running Endurance Behavioral: Respiratory muscle training Behavioral: Sham training

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Official Title: Inspiratory Muscle Training (IMT) in Athletes

Further study details as provided by Saarland University:

Primary Outcome Measures:
  • performance in the 500m run time trial [ Time Frame: 6-8 weeks ]

Secondary Outcome Measures:
  • maximum inspiratory pressure [ Time Frame: 6-8- weeks ]

Estimated Enrollment: 40
Study Start Date: August 2009
Study Completion Date: January 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Training
respiratory muscle training (pressure threshold loading)
Behavioral: Respiratory muscle training
Daily training with a handheld device (Pressure threshold loading). 1x50 breaths with adjustments (gradually increasing levels).
Sham Comparator: sham training
training with low resistance
Behavioral: Sham training
Sham training with same handheld device. 50 breaths daily on the lowest level

Detailed Description:
  • Subject: The investigators intend to include 40 well trained runners, 18 years or older.
  • Design: Following lung function and exercise testing (incremental treadmill test to exhaustion, 5000m run time trial) participants will be randomly assigned to a verum or a control group. The verum group will train with a hand-held, commercially available pressure threshold loading device (POWERbreathe,UK). The control group will perform a sham-training with the same device. After six to eight weeks the the initial tests will be repeated.
  • Hypothesis: Inspiratory muscle training enhances performance on submaximal work loads and in the 5000m run time trial by changes in breathing pattern. Maximum oxygen uptake remains unchanged.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • well trained runners

Exclusion Criteria:

  • previous respiratory muscle training
  • cardiovascular diseases
  • impaired lung function
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00968448

Universität des Saarlands
Saarbrücken, Saarland, Germany, 66123
Sponsors and Collaborators
Saarland University
Principal Investigator: Ulf Such, MD Institute for Sports Medicine and Prevention / Saarland Universitiy
  More Information

Responsible Party: Prof. Tim Meyer, Saarland University Identifier: NCT00968448     History of Changes
Other Study ID Numbers: Sportmed-Saarland-8/2009
Study First Received: August 28, 2009
Last Updated: January 4, 2011

Keywords provided by Saarland University:
respiratory muscle
breathing pattern
exercise performance processed this record on September 21, 2017