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Respiratory Muscle Contribution to Blood Pressure During Exercise

Respiratory Muscle Contribution to Blood Pressure During Exercise in Healthy Humans

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03514823
Enrollment
38
Registered
2018-05-02
Start date
2018-08-01
Completion date
2019-09-25
Last updated
2021-07-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Pressure, Exercise Capacity, Respiratory Muscle, Sympathetic Nerve Activity

Brief summary

The investigators seek to understand how reflexes from the breathing muscles influence blood pressure during exercise. Furthermore, the investigators are determining if increasing breathing muscle strength (via inspiratory muscle training) influences the respiratory muscle contribution to blood pressure during exercise.

Interventions

OTHERInspiratory Muscle Training (IMT)

Inspiratory muscle training (IMT) are breathing exercises used to increase strength and endurance of the respiratory muscles.

OTHERNo Inspiratory Muscle Training (IMT)

No inspiratory muscle training.

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

Healthy participants with no history of cardiovascular, pulmonary, neurologic, orthopedic or other neuromuscular diseases.

Design outcomes

Primary

MeasureTime frameDescription
VO2 max testThrough study completion, an average of one year.Using a MedGraphics metabolic cart, the investigators will measure the maximum amount of oxygen that an individual can utilize during exercise. During this test the subject will be asked to exercise to his/her max capacity on a recumbent bicycle while breathing through a mouth piece that is hooked into the MedGraphics computer software.
Blood PressureThrough study completion, an average of one year.Blood pressure will be taken every few minutes during exercise testing using a standard blood pressure cuff to monitor changes in blood pressure.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026