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Respiratory Muscle Strength in Patients With NMD

Respiratory Muscle Strength and Function in Patients With Neuromuscular Disease

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01555905
Acronym
RMST
Enrollment
17
Registered
2012-03-16
Start date
2011-04-30
Completion date
2022-03-31
Last updated
2023-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuromuscular Disease

Keywords

Respiratory Muscle Strength

Brief summary

The purpose of this study is to determine if inspiratory muscle strength training (IMST) will impact maximal inspiratory pressure and pulmonary function in patients with neuromuscular disease.

Detailed description

Subjects undergo a 12-week period of inspiratory muscle strength training. Respiratory strength is assessed before and after the training period.

Interventions

DEVICEThreshold PEP or IMT device Phillips-Respironics

The subject will be instructed to take 8-15 deep, forceful breaths through the Threshold device, followed by at least 3 minutes of rest. The process will be repeated 3 more times for a total of 4 sets of 8-15 breaths. IMST will be completed three to five days per week, based upon the subject's daily baseline level of fatigue.

Sponsors

University of Florida
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 65 Years
Healthy volunteers
No

Inclusion criteria

* Confirmed diagnosis of neuromuscular disease * Clinical evidence of impaired pulmonary function

Exclusion criteria

* Above or below age range * No clinical evidence of impaired pulmonary function * No diagnosis of a neuromusuclar disease * Presence of an acute illness at time of study * Participating in other research studies involving investigational drugs * Diagnosis of a primary pulmonary disease * Use of tobacco products

Design outcomes

Primary

MeasureTime frameDescription
Maximal Inspiratory PressureBaseline (pre-IMST) and 3 months (post-IMST)The primary endpoints for inspiratory muscle training efficacy will be maximal inspiratory pressure tests, a measure of respiratory strength.

Countries

United States

Participant flow

Participants by arm

ArmCount
Exercise
Threshold PEP or IMT device Phillips-Respironics Threshold PEP or IMT device Phillips-Respironics: The subject will be instructed to take 8-15 deep, forceful breaths through the Threshold device, followed by at least 3 minutes of rest. The process will be repeated 3 more times for a total of 4 sets of 8-15 breaths. IMST will be completed three to five days per week, based upon the subject's daily baseline level of fatigue.
17
Total17

Baseline characteristics

CharacteristicExercise
Age, Categorical
<=18 years
9 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Age, Continuous24 years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Maximal Inspiratory Pressure37.3 cm H2O
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
16 Participants
Region of Enrollment
United States
17 participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
6 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 17
other
Total, other adverse events
1 / 17
serious
Total, serious adverse events
0 / 17

Outcome results

Primary

Maximal Inspiratory Pressure

The primary endpoints for inspiratory muscle training efficacy will be maximal inspiratory pressure tests, a measure of respiratory strength.

Time frame: Baseline (pre-IMST) and 3 months (post-IMST)

ArmMeasureGroupValue (MEAN)
ExerciseMaximal Inspiratory PressurePre33.7 cm H2O
ExerciseMaximal Inspiratory PressurePost38.0 cm H2O

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026