Trial Outcomes & Findings for Comparing Nose & Mouth Breathing During Exercise (NCT NCT05702047)

NCT ID: NCT05702047

Last Updated: 2024-11-15

Results Overview

Systolic blood pressure will be measured in the laboratory during submaximal exercise with nose-only breathing and mouth-only breathing.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

20 participants

Primary outcome timeframe

Up to one day

Results posted on

2024-11-15

Participant Flow

Participant milestones

Participant milestones
Measure
Mouth Breathing Then Nose Breathing
1\. Participants will be instructed to breathe only through their mouth (nose clips on) during rest and submaximal exercise. 2. Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise.
Nose Breathing Then Mouth Breathing
1\. Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise. 2. Participants will be instructed to breathe only through their mouth (nose clips on) during rest and submaximal exercise.
Overall Study
STARTED
10
10
Overall Study
COMPLETED
10
10
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Comparing Nose & Mouth Breathing During Exercise

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Participants
n=20 Participants
These numbers are for all participants
Age, Categorical
<=18 years
0 Participants
n=99 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
n=99 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
Sex: Female, Male
Female
13 Participants
n=99 Participants
Sex: Female, Male
Male
7 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
16 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
Race (NIH/OMB)
White
19 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Region of Enrollment
United States
20 Participants
n=99 Participants
Body mass index
23 kilograms per meters squared
STANDARD_DEVIATION 2 • n=99 Participants

PRIMARY outcome

Timeframe: Up to one day

Population: 17 participants completed both arms with this variable measured

Systolic blood pressure will be measured in the laboratory during submaximal exercise with nose-only breathing and mouth-only breathing.

Outcome measures

Outcome measures
Measure
Nose-only Breathing
n=17 Participants
Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise. Nose-only breathing: Participants will breathe only through their nose (mouth closed) during rest and submaximal exercise.
Mouth-only Breathing
n=17 Participants
Participants will be instructed to breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise. Mouth-only breathing: Participants will breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise.
Blood Pressure During Exercise Between Study Arms
142 mmHg
Standard Deviation 14
146 mmHg
Standard Deviation 12

PRIMARY outcome

Timeframe: Up to one day

Population: 18 participants completed both arms with this variable measured

Heart rate will be measured in the laboratory during submaximal exercise with nose-only breathing and mouth-only breathing.

Outcome measures

Outcome measures
Measure
Nose-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise. Nose-only breathing: Participants will breathe only through their nose (mouth closed) during rest and submaximal exercise.
Mouth-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise. Mouth-only breathing: Participants will breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise.
Heart Rate During Exercise Between Study Arms
130 beats per minute
Standard Deviation 20
133 beats per minute
Standard Deviation 22

SECONDARY outcome

Timeframe: Up to one day

Population: 18 participants completed both arms with this variable measured

Participants will report their rating of perceived exertion (numerical scores of 6-20, with 20 being the greatest exertion) based on a validated scale during submaximal exercise with nose-only breathing and mouth-only breathing.

Outcome measures

Outcome measures
Measure
Nose-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise. Nose-only breathing: Participants will breathe only through their nose (mouth closed) during rest and submaximal exercise.
Mouth-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise. Mouth-only breathing: Participants will breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise.
Rating of Perceived Exertion During Exercise Between Study Arms
13 units on a scale
Standard Deviation 3
12 units on a scale
Standard Deviation 2

SECONDARY outcome

Timeframe: Up to one day

Population: 18 participants completed both arms with this variable measured

Participants will report their rating of perceived breathlessness (numerical scores of 0-10, with 10 being the greatest breathlessness) based on a validated scale during submaximal exercise with nose-only breathing and mouth-only breathing.

Outcome measures

Outcome measures
Measure
Nose-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their nose (mouth closed) during rest and submaximal exercise. Nose-only breathing: Participants will breathe only through their nose (mouth closed) during rest and submaximal exercise.
Mouth-only Breathing
n=18 Participants
Participants will be instructed to breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise. Mouth-only breathing: Participants will breathe only through their mouth (nose clips prevent nose breathing) during rest and submaximal exercise.
Rating of Perceived Breathlessness During Exercise Between Study Arms
2 units on a scale
Interval 1.25 to 2.75
3 units on a scale
Interval 1.85 to 4.15

Adverse Events

Nose-only Breathing

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Mouth-only Breathing

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Director, Cardiovascular and Applied Physiology Laboratory

Florida State University

Phone: 8506441828

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place