Status:

NOT_YET_RECRUITING

Brain Blood Flow Responses at Rest and During Exercise

Lead Sponsor:

University of British Columbia

Conditions:

Cerebrovascular Regulation

Eligibility:

All Genders

7-35 years

Brief Summary

Tight regulation of brain blood flow is integral for delivery of oxygen and energy for survival. During childhood, the brain has a twofold higher metabolic requirement, thus requires greater blood flo...

Detailed Description

The goal of this cross-sectional experimental study to determine the influence age, sex and pubertal status on cerebrovascular responses at rest and during isometric exercise. The main objective is t...

Eligibility Criteria

Inclusion

  • Are aged between 7-10 years, 12-16 years or 19-35 years
  • Male or Female
  • Have a normal blood pressure (\<160/110 mmHg) and are not taking any anti-hypertensive medications.
  • No prior or current history of cardiorespiratory of cerebrovascular diseases.
  • Can communicate in English

Exclusion

  • Inability to perform handgrip exercise
  • Are currently taking any medications known to influence vascular function, heart rate or blood pressure
  • Have epilepsy
  • Are a current smoker
  • Have known cardiometabolic abnormalities
  • Have congenital cardiac abnormalities (e.g., tetralogy of Fallot)
  • Unstable angina (frequent chest pain)
  • Atrial Fibrillation
  • Myocardial infarction (heart attack) within the previous 3 months
  • Transient ischemic attack (TIA) within the previous 6 months
  • Heart failure ≥ class 2
  • Have a known respiratory disease (e.g., asthma)
  • Have a known metabolic disease (e.g., Type 1 diabetes)
  • Are unable to exercise
  • Are pregnant
  • Less than 6 months post childbirth or stopped breastfeeding within the last month

Key Trial Info

Start Date :

May 1 2024

Trial Type :

OBSERVATIONAL

Allocation :

ESTIMATED

End Date :

January 1 2025

Estimated Enrollment :

60 Patients enrolled

Trial Details

Trial ID

NCT06142045

Start Date

May 1 2024

End Date

January 1 2025

Last Update

March 6 2024

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