Healthy
Conditions
Brief summary
This is an randomised cross over trial in healthy participants measuring respiratory emissions during different respiratory activities.
Interventions
BEHAVIORALExertional respiratory activities
participants will perform a series of exertional respiratory activities
Sponsors
Fisher and Paykel Healthcare
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Adults, over the age of 18 and able to give informed consent * Symptom free from any respiratory illness in the last 48 hours
Exclusion criteria
* Pregnant (where the participant feels that their pregnancy will make participation uncomfortable) * Inability to give consent * Current respiratory disease. Participants with well controlled asthma will be included (defined as asthma that the participant self-rates their asthma as being under control and that does not limit exercise, work)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Count of total number of respiratory particles emitted during respiratory activities in the range of 0.3 to 25 microns | Emission of particles will be collected and analysed for 2 minutes during each experimental condition | Particles emitted will be counted using two different optical particle counters |
Countries
New Zealand
Outcome results
None listed