NCT06070831

Brief Summary

Background: Respiratory health problems are one of the main causes of morbidity and mortality in adult people with acquired brain injury (ABI). The influence of respiratory muscle training has not yet been studied in this population group. The objective of the study was to evaluate and compare the efficacy of two protocols with respiratory muscle training, inspiratory muscle training vs expiratory muscle training, to improve respiratory strength and pulmonary function in adults with CP. Methods: The study is a controlled, randomised, double-blind trial and with allocation concealment. 26 ABI patients will be recruited and randomly distributed in the inspiratory muscle training group (IMT) and the expiratory muscle training group (EMT). Over an 8-week period an IMT or EMT protocol was followed 5 days/week, 5 series of 1-minute with 1-minute rest between them. IMT trained with a load of 50% of the maximum inspiratory pressure (MIP) and EMT with 50% of the maximum expiratory pressure (MEP). Respiratory strength and pulmonary function were evaluated.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2023

Shorter than P25 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 23, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

October 6, 2023

Completed
3 months until next milestone

Study Start

First participant enrolled

December 21, 2023

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 21, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 21, 2024

Completed
Last Updated

October 6, 2023

Status Verified

September 1, 2023

Enrollment Period

2 months

First QC Date

September 23, 2023

Last Update Submit

September 30, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Inspiratory muscle strength

    It was measured using the maximum inspiratory pressure (MIP) with a pressure measurer (Elka PM-15, Laboliser, S.A., Barcelona, Spain), from residual volume and total lung capacity. Unit of measure, centimeter of water (cmH2O).

    8 weeks.

  • Expiratory muscle strength

    It was measured using the maximum expiratory pressure (MEP) with a pressure measurer (Elka PM-15, Laboliser, S.A., Barcelona, Spain), from residual volume and total lung capacity. Unit of measure, centimeter of water (cmH2O).

    8 weeks.

Secondary Outcomes (2)

  • Pulmonary volume.

    8 weeks.

  • Pulmonary flow.

    8 weeks.

Study Arms (2)

Inspiratory muscle training group (IMT)

EXPERIMENTAL

Inspiratory muscle training at 50% of MIP, the training load was set each 2 weeks to keep 50% of MIP.

Device: Inspiratory muscle training

Expiratory muscle training group (EMT)

EXPERIMENTAL

Expiratory muscle training at 50% of MEP, following the same rules as HIT.

Device: Expiratory muscle training

Interventions

Respiratory training, performed through IMT, was carried out with a pressure threshold device (Treshold IMT, Philips-Respironics, Pittsburg, PA, USA). Threshold IMT offers a constant and specific pressure for strength and endurance training of the respiratory muscles, regardless of the strength or speed with which patient breathes. A flow-independent one-way valve ensures constant resistance and allows you to specifically adjust workload (in cmH2O). The training must be supervised by a healthcare professional. During the inspiration, a spring-loaded valve resists to stimulate the training of the respiratory muscles. Before training began, the participants and primary caregivers completed one-session familiarization with a specialist to know the operation of the device. Adult people with acquired brain injury carried out the training program for 8 weeks, 1 session every day, 5 days a week. The participants performed 5 series of 1 minute with 1-minute rest between them.

Inspiratory muscle training group (IMT)

Respiratory training, performed through PEP, was carried out with a pressure threshold device (Treshold PEP, Philips-Respironics, Pittsburg, PA, USA). Threshold PEP offers a constant and specific pressure for strength and endurance training of the respiratory muscles, regardless of the strength or speed with which patient breathes. A flow-independent one-way valve ensures constant resistance and allows you to specifically adjust workload (in cmH2O). The training must be supervised by a healthcare professional. During the expiration, a spring-loaded valve resists to stimulate the training of the respiratory muscles. Before training began, the participants and primary caregivers completed one-session familiarization with a specialist to know the operation of the device. Adult people with acquired brain injury carried out the training program for 8 weeks, 1 session every day, 5 days a week. The participants performed 5 series of 1 minute with 1-minute rest between them.

Expiratory muscle training group (EMT)

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Belong to ASDACE.
  • Sign the Informed consent.

You may not qualify if:

  • The presence of a respiratory disease in the previous month, inability to understand assessment tests or intervention or hemodynamic alterations (heart rate \> 150 beats per minute (bpm), systolic blood pressure \> 140 millimeters mercury (mmHg) or diastolic blood pressure \> 90 mmHg).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Respiration DisordersMuscle WeaknessBrain InjuriesSedentary Behavior

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesMuscular DiseasesMusculoskeletal DiseasesNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and SymptomsBrain DiseasesCentral Nervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and InjuriesBehavior

Study Officials

  • CARLOS MARTIN SANCHEZ, PHD

    University of Salamanca

    PRINCIPAL INVESTIGATOR

Central Study Contacts

CARLOS MARTIN SANCHEZ, PHD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
The professional that collected the data and the participants were unaware of group assignment.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 23, 2023

First Posted

October 6, 2023

Study Start

December 21, 2023

Primary Completion

February 21, 2024

Study Completion

April 21, 2024

Last Updated

October 6, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share