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Inspiratory Muscle Training (IMT) in Athletes

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00968448
Recruitment Status : Completed
First Posted : August 31, 2009
Last Update Posted : January 5, 2011
Information provided by:
Saarland University

Brief Summary:
The purpose of this study is to determine weather well trained athletes benefit from inspiratory (respiratory) muscle training.

Condition or disease Intervention/treatment Phase
Running Endurance Behavioral: Respiratory muscle training Behavioral: Sham training Not Applicable

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.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Official Title: Inspiratory Muscle Training (IMT) in Athletes
Study Start Date : August 2009
Actual Primary Completion Date : January 2011
Actual Study Completion Date : January 2011

Arm Intervention/treatment
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

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

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

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00968448

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

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Responsible Party: Prof. Tim Meyer, Saarland University Identifier: NCT00968448     History of Changes
Other Study ID Numbers: Sportmed-Saarland-8/2009
First Posted: August 31, 2009    Key Record Dates
Last Update Posted: January 5, 2011
Last Verified: August 2009
Keywords provided by Saarland University:
respiratory muscle
breathing pattern
exercise performance
Additional relevant MeSH terms:
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Respiratory Aspiration
Respiration Disorders
Respiratory Tract Diseases
Pathologic Processes