NCT03827356

Brief Summary

Objective: To evaluate the effectiveness of two protocols of inspiratory muscle training (IMT) in older women to improve respiratory strength, spirometric parameters and dyspnea. Low-intensity vs high-intensity resistance training programs. Evaluations: Determination of the maximum inspiratory pressure (MIP) and the maximum expiratory pressure (MEP); spirometry - maximum voluntary ventilation (MVV), peak expiratory flow (PEF), tidal volume (TV); functional capacity measured with 6 minute walk test; dyspnea using the Borg scale and clinical evaluations. The participants will be evaluated at the beginning and end of the intervention period. Intervention: There are two groups of patients, one works with low loads (20% MIP) and another with high loads (40% MIP). They train 5 days/week 15 cycles lasting 1 minute. There is a rest of 1 minute between each cycle.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 28, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 1, 2019

Completed
2 months until next milestone

Study Start

First participant enrolled

April 10, 2019

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 10, 2019

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 10, 2019

Completed
Last Updated

November 1, 2019

Status Verified

October 1, 2019

Enrollment Period

2 months

First QC Date

January 28, 2019

Last Update Submit

October 29, 2019

Conditions

Keywords

REHABILITATIONRESPIRATIONBREATHING EXERCISEFATIGUEPHYSICAL CAPACITY

Outcome Measures

Primary Outcomes (2)

  • Maximal inspiratory pressure (MIP)

    The evaluation is performed using a pressure transducer, Elka 15, which obtainer each measurement in millibar and converted it into the reference unit of centimeter of water (cm H2O) (1 mbar = 1.01973 cm H2O), following the rules of the American Thoracic Society/European Respiratory Society (ATS / ERS). The procedure was repeated until 3 values were obtained with a difference of less than 5%, and the highest value was used for the analysis. The MIP of the intervention group was assessed every 2 weeks to set the IMT workload.

    2 minutes

  • Maximal expiratory pressure (MEP)

    The evaluation is performed using a pressure transducer, Elka 15. It is evaluated at the beginning and at the end of the interventional phase.

    2 minutes

Secondary Outcomes (9)

  • Maximum voluntary ventilation (MVV)

    1 minute

  • Forced expiratory volume in the first second (FEV1)

    1 minute

  • Peak expiratory flow (PEF)

    1 minute

  • Mean expiratory flow (FEF25-75)

    1 minute

  • Vital capacity (VC)

    1 minute

  • +4 more secondary outcomes

Study Arms (2)

"High intensity group"

EXPERIMENTAL

Intervention is administrated with an inspiratory muscle trainer (IMT). High intensity group: 15 cycles, 1 minute each one, 40% MIP with IMT. 1 minute to rest between cycles.

Device: Inspiratory muscle trainer (IMT)

"Low intensity group"

ACTIVE COMPARATOR

Intervention is administrated with an inspiratory muscle trainer (IMT). Low intensity group: 15 cycles, 1 minute each one, 20% MIP with IMT. 1 minute to rest between cycles.

Device: Inspiratory muscle trainer (IMT)

Interventions

The device incorporate a unidirectional valve independent of flow to guarantee constant resistance and included a specific pressure setting (in cm H2O).

"High intensity group""Low intensity group"

Eligibility Criteria

Age65 Years+
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsFemale
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • Women
  • Older 65 years
  • Barthel \> 60
  • Understand the objectives and be able to complete questionaires

You may not qualify if:

  • Respiratory pathology during the 4 weeks prior the start of the study
  • Any complication that may impeded the performance of the evaluation tests or breathing techniques

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Carlos Martin Sanchez

Salamanca, 37006, Spain

Location

MeSH Terms

Conditions

Respiratory InsufficiencyRespiratory AspirationFatigue

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and Symptoms

Study Officials

  • ANA MARIA MARTIN-NOGUERAS, DR

    University of Salamanca

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Masking Details
The principal investigator doesn´t know the group of the patients until the study ends
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients are assigned randomly to the 2 working groups, each patient only receives one of the two protocols.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

January 28, 2019

First Posted

February 1, 2019

Study Start

April 10, 2019

Primary Completion

June 10, 2019

Study Completion

September 10, 2019

Last Updated

November 1, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will not share

Locations