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Respiratory Resistance Training on Sleep Quality in Persons With Spinal Cord Injury

Concurrent Respiratory Resistance Training and Changes in Respiratory Muscle Strength and Sleep Quality in Persons With Spinal Cord Injury

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00629850
Enrollment
1
Registered
2008-03-06
Start date
2008-02-29
Completion date
2009-09-30
Last updated
2019-05-08

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

Conditions

Spinal Cord Injury

Keywords

spinal cord injury, respiratory muscle training, sleep quality

Brief summary

The purpose of this study is to determine if the use of a respiratory resistance trainer will increase respiratory muscle strength, improve sleep quality and improve quality of life in individuals with spinal cord injury. Hypothesis: Use of the respiratory resistance trainer will improve respiratory muscle strength, improve sleep quality, and improve quality of life among individuals with spinal cord injury.

Detailed description

Individuals with spinal cord injury experience varying degrees of reduced muscle function. Those individuals with high level spinal cord injury, cervical region, may experience reduced diaphragm function. This reduction in function may affect daytime activities as well as sleep quality. Sleep quality in people with spinal cord injury is considered to be worse than sleep quality in the general population. The use of respiratory resistance training devices has been shown to increase muscle strength in people with spinal cord injury. There have been not studies to document potential improvements in sleep quality among individuals with spinal cord injury following respiratory resistance training.

Interventions

DEVICEPowerlung Performer

Inspiratory/Expiratory muscle trainer

Sponsors

Texas State University, San Marcos
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* tetraplegia * quadriplegia

Exclusion criteria

* NA

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Improvement in Sleep Quality.10 weeksImprovement in sleep quality as defined by: less fragmented sleep, lower apnea hypopnea index (AHI), respiratory disturbance index (RDI) after device use.
Change in Maximum Voluntary Ventilation Using Pulmonary Function Device10 weeksPulmonary function device measures flow rate in liters per minute over a period of at least 12 seconds.
Change in Negative Inspiratory Force Using a Pressure Manometer10 weeks

Countries

United States

Participant flow

Participants by arm

ArmCount
Powerlung Trainer Device
The device was used twice a day. Each use consisted of two sets of 10 breaths for each set.
1
Control
This arm of the study will not receive the device.
0
Total1

Baseline characteristics

CharacteristicPowerlung Trainer DeviceControlTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants0 Participants1 Participants
Region of Enrollment
United States
1 participants1 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
1 Participants0 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 10 / 0
serious
Total, serious adverse events
0 / 10 / 0

Outcome results

Primary

Change in Maximum Voluntary Ventilation Using Pulmonary Function Device

Pulmonary function device measures flow rate in liters per minute over a period of at least 12 seconds.

Time frame: 10 weeks

Population: there was only one participant completing this study. No analyses performed.

Primary

Change in Negative Inspiratory Force Using a Pressure Manometer

Time frame: 10 weeks

Population: there was only one participant completing this study. No analyses performed.

Primary

Number of Participants With Improvement in Sleep Quality.

Improvement in sleep quality as defined by: less fragmented sleep, lower apnea hypopnea index (AHI), respiratory disturbance index (RDI) after device use.

Time frame: 10 weeks

Population: There was only one participant completing the study. No analyses performed.

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