NCT02532075

The Effect of a Respiratory Muscle Warm-up Prior to Exercise in Patients With Chronic Obstructive Pulmonary Disease

The Effect of a Respiratory Muscle Warm-up Prior to Exercise in Patients With Chronic Obstructive Pulmonary Disease (COPD)

• Status: Terminated
• Phase: N/A
• Study type: Interventional
• Enrollment: 5 (actual)
• Sponsor: University of Portsmouth · Academic / Other
• Sex: All
• Age: 35 Years – 90 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to investigate the effects of performing a breathing muscle warm up before exercise in patients who have chronic obstructive pulmonary disease (COPD). The main aim is to see whether performing a breathing muscle warm up can improve distance walked in a 6 minute walk test and also decrease perceptions of effort and breathlessness.

Detailed description

The study will follow a counter-balanced repeated measures design involving six visits to the exercise laboratory. Following pre-screening and familiarisation (visits 1 and 2), participants will perform inspiratory warm up, expiratory warm up, combination warm up and control trials (visits 3 - 6) in a counter-balanced order separated by at least 48 hours between trials. The four separate sessions will contain: lung function measurements assessed by performing breathing manoeuvres through a mouthpiece (spirometery or body plethysmography) before performing a breathing muscle warm up by breathing against a resistance through a small handheld device (PowerLung). Participants will then be asked perform a second set of lung function measurements and will then be asked to perform a 6 minute walk test wearing a face mask and a portable device (gas analysis), a small device clipped to a finger (pulse oximeter) and wearing a heart rate monitor. During this 6 minute walk test participants will also be asked to rate their perceived effort and level of breathlessness at 60m intervals. Following the test there will be a period of seated rest wearing the face mask and portable device for up to 20 minutes with one more set of lung function measurements.

Conditions

• Chronic Obstructive Pulmonary Disease

Interventions

Type	Name	Description
OTHER	Inspiratory Warm Up	Inspiratory muscle warm up. Inhaling against a resistance for two sets of 15 breaths using a PowerLung.
OTHER	Expiratory Warm Up	Expiratory muscle warm up. Exhaling against a resistance for two sets of 15 breaths using a PowerLung.
OTHER	Combination Warm Up	Combination of inspiratory and expiratory muscle warm up. One set of 15 breaths inhaling followed by one set 15 breaths exhaling.
OTHER	Control Trial	Control Trial. No respiratory muscle warm up to act as a comparison to the other three intervention trials.

Timeline

• Start date: 2016-02-01
• Primary completion: 2016-10-01
• Completion: 2016-10-01
• First posted: 2015-08-25
• Last updated: 2016-10-27

Locations

1 site across 1 country: United Kingdom