Inadequate or Impaired Respiratory FunctionNCT03767556
Effects of Respiratory Muscle Training in Obese Women
A study testing Inspiratory muscle training in people with Inadequate or Impaired Respiratory Function and Diabetes, run by Universidade Metodista de Piracicaba at 1 site in Brazil.
Trial summary
The objective of this study will be to evaluate the effects of inspiratory muscle training (IMT) on the physical fitness of obese women It is believed that the application of these exercises helps in the improvement of inspiratory muscle performance, which should improve physical fitness and thus allow a better… Read more about this study
- Who is it for?
- Ages 20 to 59 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Inadequate or Impaired Respiratory Function, Diabetes, Hypertension
- What is being tested?
- Inspiratory muscle training
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteBrazil
- Study dates
- 15 Dec 2018to 8 Jun 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 59 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- BMI> 35 and <55 kg / m²
- with clinical stability
- suitable for physical tests
- acceptance to participate in the study
Who cannot join
- women with reports of decompensated heart disease
- chronic obstructive pulmonary disease and asthma
- musculoskeletal and / or neuromuscular changes,
- which make it impossible to perform the tests.
Trial locations and contacts
1 site in 1 country.
Brazil1 site
Universidade Metodista de Piracicaba (UNIMEP)
Piracicaba, São Paulo, 13400911
About this study
Official title: Effects of Respiratory Muscle Training on Lung Function, Respiratory Muscle Function and Physical Fitness in Obese Women
The objective of this study will be to evaluate the effects of inspiratory muscle training (IMT) on the physical fitness of obese women
It is believed that the application of these exercises helps in the improvement of inspiratory muscle performance, which should improve physical fitness and thus allow a better performance in the activities of daily living.
Read the detailed description
This is a clinical trial, in which adult obese volunteers aged 20-59 years will be evaluated, which will be randomized into two groups: training group (GT) and control group (CG). Both groups should meet the following inclusion criteria: Age between 20 and 59 years, BMI> 35 and <55 kg / m², with clinical stability, able to perform the physical tests and acceptance to participate in the study. Women with reports of decompensated heart disease, chronic obstructive pulmonary disease and asthma will be excluded; musculoskeletal and / or neuromuscular changes, which make it impossible to perform the tests. The evaluations will occur in two days with at least 48 hours of interval between them, within a period of seven days, before and after the respiratory muscle training of four weeks. In addition to anamnesis, the initial evaluation will include assessment of pulmonary function (SLF, forced vital capacity (FVC) and maximal voluntary ventilation (VVM)) by spirometry; respiratory muscle evaluation through the measures of Maximum Inspiratory Pressure (PIMax) and maximal sustained inspiratory pressure (PIMaxS); physical fitness assessment through the 6-minute step test (TD6), incremental shuttle walking test (ISWT) and Sentar e Levantar (SL) test, as well as assessment of dyspnea. For the TMI will be used equipment with pressure threshold pressure. During the 4-week period, the IMT will be performed 5 days a week and will consist of 2 series with 30 inspirations. Inspirations will be performed slowly and protracted. The training load will be 55% of the PIMáx readjusted weekly. Statistical analysis will be performed using BioEstat version 5.3. To evaluate the normality of distribution of the data will be used Shapiro-Wilk test. For the comparison of all variables studied, the Student's t-test or the Mann-Wittney test will be used. Pre- and post-training parametric results will also be compared statistically using variance analyzes of two variables (group × time) (ANOVA). Bonferroni tests will be used to examine differences between groups when indicated by ANOVA. The significance level of 5% will be adopted for all analyzes (P <0.05) where the data will be expressed as mean and standard deviation.
- Being tested
- Inspiratory muscle training
- Keywords
- physical tests, functional capacity, spirometry, travelled distance, cardiorespiratory fitness, flexibility, respiratory pressures, dyspnea
- Medical subject headings
- Respiratory Insufficiency, Diabetes Mellitus, Hypertension, Dyspnea
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Inspiratory muscle trainingProcedure or surgery
Powerbreathe® K5
| Study group | Role | What they receive |
|---|---|---|
| Control | No intervention | This group will not receive intervention |
| Inspiratory Muscle Training | Experimental | This group, for inspiratory muscle training, will use the Powerbreathe® K5 device. This device will be adjusted with a load of 55% of previously assessed MIP. The volunteer will be instructed to inhale with sufficient force to overcome the resistance of the equipment and subsequently perform a normal expiration. During the 4-week period of respiratory muscle training volunteers will be instructed to perform 2 sets with 30 inspiratory efforts, 5 days a week. The training load will be readjusted on the first day of training each week, after a new reassessment of the PIMax in order to guarantee the overload during inspiratory muscle training. Receives: Procedure: Inspiratory muscle training |
What is being measured
The primary outcome is the main question the study is designed to answer.
EVALUATION OF LUNG VOLUMES AND CAPACITIES
Spirometry will be out according to the guidelines of the American Thoracic Society (ATS) and European Respiratory Society (ERS) (2005). The values extracted will be selected according to Pereira (2002), and the predicted values calculated using the equation proposed by Pereira et al. (1992) for Brazilians.
Measured: before and after the intervention, for 2 days with a 72-hour interval
Secondary outcomes (5)
EVALUATION OF PHYSICAL ACTIVITY LEVEL
Volunteers will respond to the International Physical Activity Questionnaire, which is an instrument that allows estimating the weekly time spent in physical activity. The final classification given by the International Physical Activity Questionnaire occurs in five levels of physical activity: Very Active, Active, Irregularly active and Sedentary.
Measured: before and after the intervention, for 2 days with a 72-hour interval
6-MINUTE DEGREE TEST (TD6)
The TD6 will be used for the evaluation of cardiorespiratory fitness by calculating the maximum oxygen consumption (VO2 max) in an indirect way and the functional capacity of the volunteers. The TD6 outcome will be the number of volunteer climbs on the rung (PESSOA et al., 2015). The values reached in the number and the rhythm of ascents in the step will express the functional capacity.
Measured: before and after the intervention, for 2 days with a 72-hour interval
INCREMENTAL SHUTTLE WALKING TEST (ISWT)
The ISWT will be used to determine the functional capacity of the volunteers by the distance traveled during the test. It is a walking test, with progressive loading, given by the increase in walking speed required to overcome each stage of the test. The ISWT will be controlled by specific software, which determines the speed and pace of each stage of the test. This test will be carried out in a corridor in which 10 meters in length, delimited by cones, at each end, will be demarcated by volunteers, obeying each sound signal programmed by Sing et al. (1992). The test will be terminated at the signal of inability to continue or non-accompaniment of speeds by the volunteer.
Measured: before and after the intervention, for 2 days with a 72-hour interval
TEST TO SIT AND LIFT
This test will be used to determine the indirect force in the lower limbs. To perform this test, a chair with a height of 40 cm will be used, with backrest, in which the volunteer will begin the test in the sitting position, in the middle of the seat, with the spine erect, feet resting on the floor and the arms crossed against the thorax. At the investigator's signal, the volunteer should stand up, stand fully up, and then return to the seated position. Volunteers will be encouraged to sit and stand up as often as possible in 30 seconds. The result will be determined by counting the number of times the volunteer correctly performed the movements of sitting and lifting of the chair without the aid of the movement of the upper limbs
Measured: before and after the intervention, for 2 days with a 72-hour interval
EVALUATION OF INSPIRATORY MUSCLE STRENGTH
The Maximum Inspiratory Pressure (PIMax) and Maximum Expiratory Pressure (PEMax) measurements will be performed. The measures of the MIP will aim beyond the evaluation of the strength of the respiratory muscles, establish the initial load of the resistance test of the respiratory muscles as well as the training load. The measurements of PImax and PEmax, will be evaluated through an analog manovacuometer. Each participant should perform three to five maximum inspiratory and reproducible inspiratory efforts provided there has been a maximum difference of 10% between them being the highest value considered for statistical analysis. The time interval between consecutive measurements was 1 minute.
Measured: before and after the intervention, for 2 days with a 72-hour interval
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Dec 2018
- Study start15 Dec 2018
- Primary completion21 May 2019
- Study completion8 Jun 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Inadequate or Impaired Respiratory FunctionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Factorial
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidade Metodista de Piracicaba
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Eli Maria Pazzianotto Forti, Universidade Metodista de Piracicaba
- Investigators
- Eli M Pazzianoto-Forti, Phd, Principal investigator, Universidade Metodista de Piracicaba
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03767556
- Sponsor's protocol ID
- Tamires2018
- Status last verified
- Jul 2019
- First submitted
- 17 Oct 2018
- Last updated
- 24 Jul 2019
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Jul 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Respiratory Muscle Training on Lung Function, Respiratory Muscle Function and Physical Fitness in Obese Women
- ClinicalTrials.gov ID
- NCT03767556
- Acronym / sponsor ID
- Tamires2018
- Keywords
- physical tests, functional capacity, spirometry, travelled distance, cardiorespiratory fitness, flexibility, respiratory pressures, dyspnea
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Universidade Metodista de PiracicabaUniversity, hospital or other
- Study start
- 15 Dec 2018 (actual)
- Primary completion
- 21 May 2019 (actual)
- Study completion
- 8 Jun 2019 (actual)
- First posted
- 6 Dec 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The objective of this study will be to evaluate the effects of inspiratory muscle training (IMT) on the physical fitness of obese women
It is believed that the application of these exercises helps in the improvement of inspiratory muscle performance, which should improve physical fitness and thus allow a better performance in the activities of daily living.
Detailed description
This is a clinical trial, in which adult obese volunteers aged 20-59 years will be evaluated, which will be randomized into two groups: training group (GT) and control group (CG). Both groups should meet the following inclusion criteria: Age between 20 and 59 years, BMI> 35 and <55 kg / m², with clinical stability, able to perform the physical tests and acceptance to participate in the study. Women with reports of decompensated heart disease, chronic obstructive pulmonary disease and asthma will be excluded; musculoskeletal and / or neuromuscular changes, which make it impossible to perform the tests. The evaluations will occur in two days with at least 48 hours of interval between them, within a period of seven days, before and after the respiratory muscle training of four weeks. In addition to anamnesis, the initial evaluation will include assessment of pulmonary function (SLF, forced vital capacity (FVC) and maximal voluntary ventilation (VVM)) by spirometry; respiratory muscle evaluation through the measures of Maximum Inspiratory Pressure (PIMax) and maximal sustained inspiratory pressure (PIMaxS); physical fitness assessment through the 6-minute step test (TD6), incremental shuttle walking test (ISWT) and Sentar e Levantar (SL) test, as well as assessment of dyspnea. For the TMI will be used equipment with pressure threshold pressure. During the 4-week period, the IMT will be performed 5 days a week and will consist of 2 series with 30 inspirations. Inspirations will be performed slowly and protracted. The training load will be 55% of the PIMáx readjusted weekly. Statistical analysis will be performed using BioEstat version 5.3. To evaluate the normality of distribution of the data will be used Shapiro-Wilk test. For the comparison of all variables studied, the Student's t-test or the Mann-Wittney test will be used. Pre- and post-training parametric results will also be compared statistically using variance analyzes of two variables (group × time) (ANOVA). Bonferroni tests will be used to examine differences between groups when indicated by ANOVA. The significance level of 5% will be adopted for all analyzes (P <0.05) where the data will be expressed as mean and standard deviation.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Factorial
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Control | No intervention | –This group will not receive intervention |
| Inspiratory Muscle Training | Experimental | Procedure: Inspiratory muscle trainingThis group, for inspiratory muscle training, will use the Powerbreathe® K5 device. This device will be adjusted with a load of 55% of previously assessed MIP. The volunteer will be instructed to inhale with sufficient force to overcome the resistance of the equipment and subsequently perform a normal expiration. During the 4-week period of respiratory muscle training volunteers will be instructed to perform 2 sets with 30 inspiratory efforts, 5 days a week. The training load will be readjusted on the first day of training each week, after a new reassessment of the PIMax in order to guarantee the overload during inspiratory muscle training. |
Who may qualify
- Ages
- 20 to 59 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- BMI> 35 and <55 kg / m²
- with clinical stability
- suitable for physical tests
- acceptance to participate in the study
Key exclusion criteria (4 listed)
- women with reports of decompensated heart disease
- chronic obstructive pulmonary disease and asthma
- musculoskeletal and / or neuromuscular changes,
- which make it impossible to perform the tests.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Inspiratory muscle trainingPowerbreathe® K5 | Procedure or surgery | Inspiratory Muscle Training |
Primary outcome
EVALUATION OF LUNG VOLUMES AND CAPACITIES
Time frame: before and after the intervention, for 2 days with a 72-hour interval
Spirometry will be out according to the guidelines of the American Thoracic Society (ATS) and European Respiratory Society (ERS) (2005). The values extracted will be selected according to Pereira (2002), and the predicted values calculated using the equation proposed by Pereira et al. (1992) for Brazilians.
5 secondary outcomes
EVALUATION OF PHYSICAL ACTIVITY LEVEL
Time frame: before and after the intervention, for 2 days with a 72-hour interval
6-MINUTE DEGREE TEST (TD6)
Time frame: before and after the intervention, for 2 days with a 72-hour interval
INCREMENTAL SHUTTLE WALKING TEST (ISWT)
Time frame: before and after the intervention, for 2 days with a 72-hour interval
TEST TO SIT AND LIFT
Time frame: before and after the intervention, for 2 days with a 72-hour interval
EVALUATION OF INSPIRATORY MUSCLE STRENGTH
Time frame: before and after the intervention, for 2 days with a 72-hour interval
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jul 2019.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Eli M Pazzianoto-Forti, Phd principal investigator
Universidade Metodista de Piracicaba
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Inspiratory muscle training in people with Inadequate or Impaired Respiratory Function and Diabetes, run by Universidade Metodista de Piracicaba at 1 site in Brazil.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
EVALUATION OF LUNG VOLUMES AND CAPACITIES (time frame: before and after the intervention, for 2 days with a 72-hour interval). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jul 2019.