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
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
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 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • maximum inspiratory pressure [ Time Frame: 6-8- weeks ] [ Designated as safety issue: No ]

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
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • well trained runners

Exclusion Criteria:

  • previous respiratory muscle training
  • cardiovascular diseases
  • impaired lung function
  Contacts and Locations
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

No publications provided

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
Health Authority: Germany: Ethics Commission

Keywords provided by Saarland University:
respiratory muscle
breathing pattern
exercise performance

Additional relevant MeSH terms:
Respiratory Aspiration
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms processed this record on April 14, 2014