NCT01608529

Feel Breathe, Restriction Device Ventilatory Nasal

Phase 1: Effects of a Restriction Device Ventilatory Nasal Flow on Pulmonary Ventilation and Gas Exchange During Exercise

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 27 (actual)
• Sponsor: University of Cadiz · Academic / Other
• Sex: Male
• Age: 25 Years – 35 Years
• Healthy volunteers: Not accepted

Summary

It has patented a restriction and filtering device ventilatory nasal flow FeelBreathe with the aim of increase nasal airflow resistance, therefore the objective was to examine the effects of FeelBreathe with lung ventilation and gas exchange during exercise.

Detailed description

Background: Different devices are currently used to train inspiratory muscles, thus showing an increase in the physical performance. It is a control trial to investigate the effects of a new restriction and filtering device ventilatory nasal flow (FeelBreathe). Methods: A total of 27 trained male caucasian subjects (age: 32.5 ± 7.23 years) were recruited from different sports clubs. Measurement of maximum static inspiratory pressure were taken before exercise testing and an incremental test in cycle ergometer to volitional fatigue for the determination of gas exchange data. Each subject performed three identical submaximal exercises at 50% of ventilatory thresholds under different breathing conditions: 1) oronasal breathing 2) nasal breathing and 3) nasal breathing with Feel Breathe, Restriction and Filtering Device Ventilatory Nasal Flow. Discussion: Researchers try to find if the new device called FeelBreathe causes changes in the lung ventilation and gas exchange during exercise. If the results show altered breathing pattern and cardiometabolic variables, FeelBreathe could be used to training respiratory muscles.

Conditions

• Mouth Breathing
• Restrictive Breathing Pattern

Interventions

Type	Name	Description
DEVICE	Feel Breathe, restriction device ventilatory nasal	The Feel Breathe (FB) consisted of a small adhesive strip that is placed across the bridge of the nose during exercise. The FB was place following procedures for placement as indicated by the manufacturer's directions, while the placebo nasal, was placed over the nostrils of the subject, without interfering nasal breathing; thus, nasal airflow resistance was not increase. Each subject was required to perform three identical submaximal exercises with intensity at 50% VT1-VT2 under different breathing conditions. The breathing conditions were: oronasal, nasal and FB breathing. All participants performed three trials of stable load (50% VT1-VT2) for 10 minutes in the three conditions mentioned above, setting the cadence at 70-75 rpm, and controlling the same in all three exercise conditions.

Timeline

• Start date: 2011-01-01
• Primary completion: 2011-07-01
• Completion: 2011-12-01
• First posted: 2012-05-31
• Last updated: 2013-05-17

Locations

1 site across 1 country: Spain