Inspiratory Muscle Training in Wheelchair Basketball Players

NCT ID: NCT02604147

Last Updated: 2016-05-13

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-01-31
• Study Completion Date: 2014-08-31

Brief Summary

Investigate the effects of Inspiratory Muscle Training on the physical performance and cardiorespiratory variables of wheelchair basketball players.

Detailed Description

The respiratory system has been touted as a limiting factor of physical performance during high intense physical exercises. This limitation is related, among other things, with the fatigue of respiratory muscles. The fatigue of these muscles during physical exercise generates many physiological reflex activation culminating in reduced blood flow to the limb muscles, resulting in decrease in muscle performance. Researchers showed that the inspiratory muscle training (IMT) is able to generate improved of athlete's physical performance. However, when it comes to wheelchair athletes there are still divergent views on the effects of IMT on the physical performance. Thus, this study aims to evaluate the effects of IMT on the physical performance and cardiorespiratory variables of wheelchair basketball players. For this purpose, the investigators will select 40 wheelchair basketball players of both genders. The participants will be allocated blindly and randomly into two groups that differ by the proposed interventions. In IMT Group, the participants will be submitted to a IMT program with inicial load of 50% of maximal inspiratory pressure (MIP); the SHAM Group will be submitted to a simulated IMT with load of 15% of MIP. All participants will pass through the same evaluation procedures before and after the interventions, so that the investagators can evaluate the benefits generated by the IMT on the physical performance and cardiorespiratory variables of wheelchair basketball players.

Conditions

Respiratory Muscles; Breathing Exercises; Athletic Performance; Athletes; Aerobic Capacity

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Simulated inspiratory muscle training

Inspiratory muscle training with load of 15% of maximal inspiratory pressure.

Group Type: SHAM_COMPARATOR

Inspiratory pressure-threshold muscle training device.

Intervention Type: DEVICE

The participants who will be allocated in this simulated intervention group will have to do a simulated inspiratory muscle training protocol through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with a load of 15% of maximal inspiratory pressure without progression. In each session will be requested to the volunteers make 30 slow breaths, which will be constantly supervised by the researchers.

Inspiratory muscle training group

Inspiratory muscle training with initial load of 50% of maximal inspiratory pressure.

Group Type: EXPERIMENTAL

nspiratory pressure-threshold muscle training device.

Intervention Type: DEVICE

The participants who will be allocated in this intervention group will have to make a inspiratory muscle training protocol with progressive loads through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with an initial load of 50% of maximal inspiratory pressure, progressing to 60% after the fourth week, and 70% after the octave week. In each session will be requested to volunteers who performed 30 maximal and prolonged inspiration, maintaining the diaphragmatic breathing, which will be constantly supervised by the researchers.

Interventions

Inspiratory pressure-threshold muscle training device.

The participants who will be allocated in this simulated intervention group will have to do a simulated inspiratory muscle training protocol through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with a load of 15% of maximal inspiratory pressure without progression. In each session will be requested to the volunteers make 30 slow breaths, which will be constantly supervised by the researchers.

Intervention Type: DEVICE

nspiratory pressure-threshold muscle training device.

The participants who will be allocated in this intervention group will have to make a inspiratory muscle training protocol with progressive loads through the inspiratory muscle exerciser POWERbreathe, model Sports Plus Heavy Resistance (POWERbreathe; HAB International Ltd., Warwickshire, United Kingdom) for 12 weeks five times at week and twice daily, with an initial load of 50% of maximal inspiratory pressure, progressing to 60% after the fourth week, and 70% after the octave week. In each session will be requested to volunteers who performed 30 maximal and prolonged inspiration, maintaining the diaphragmatic breathing, which will be constantly supervised by the researchers.

Intervention Type: DEVICE

Other Intervention Names

POWERbreathe - model Sports Plus Heavy Resistance (HAB International Ltd., Warwickshire, United Kingdom).; POWERbreathe - model Sports Plus Heavy Resistance (HAB International Ltd., Warwickshire, United Kingdom).

Eligibility Criteria

Inclusion Criteria

• training wheelchair basketball for more than one year.

Exclusion Criteria

• cardiovascular or respiratory disease.
• motor or cognitive impairments that influencing the results of evaluations.
• smoking.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Universidade Metodista de Piracicaba

OTHER

Sponsor Role: lead

Responsible Party

Raphael do Nascimento Pereira

MsC.

Responsibility Role: PRINCIPAL_INVESTIGATOR

Other Identifiers

UNIMEP

Identifier Type: -

Identifier Source: org_study_id