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Autonomic Nervous System DiseaseNCT06274658

The Effects of an Acute High-intensity Exercise on Heart and Brain Function in People With Spinal Cord Injury

An observational study of Autonomic Nervous System Disease and Spinal Cord Injuries, run by State University of New York at Buffalo at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The heart and brain are regulated by the autonomic nervous system. Control of these organs can be disrupted in people with spinal cord injury (SCI). This may affect their ability to regulate blood pressure during daily activities and process the high-level information. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
What is being tested?
High-intensity interval exercise
How many people
30 participants
Where
1 siteUnited States
Study dates
14 Feb 2024to 31 Jul 2025
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: This study will include people with SCI with level of injury T6 or above and age- and sex-matched non-injured controls.

Who may be able to join

  • Diagnosed with a traumatic or non-traumatic spinal cord injury and have ≥4/5 strength in at least one cervical 5 myotome (elbow flexors), allowing to utilize the arm ergometer and level of injury at or above the 6th thoracic vertebra
  • Classified as A, B, C, D (motor and sensory complete or incomplete) on the American Spinal Injury Association (ASIA) Impairment Scale (AIS)
  • Longer than 6 months post the onset of injury and have been discharged to the community from inpatient rehabilitation prior to enrollment
  • English is the first language
  • At least one of the cerebral arteries (i.e., middle cerebral artery and/or posterior cerebral artery) can be found via transcranial Doppler

Who cannot join

  • Medical conditions that preclude exercise, such as unstable angina, uncontrolled arrhythmias, a recent history of congestive heart failure that has not been evaluated and effectively treated, severe valvular disease, uncontrolled hypertension (i.e., resting systolic blood pressure ≥ 160 mmHg and/or diastolic blood pressure ≥ 105 mmHg)
  • Moderate-severe traumatic brain injury
  • Diabetes
  • Color blindness
  • Pre-existing shoulder injuries
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University at Buffalo, South Campus

    Buffalo, New York, 14214

Other trials in United States

About this study

Official title: The Effects of an Acute High-intensity Interval Training on Heart and Brain Function in People With Spinal Cord Injury

The heart and brain are regulated by the autonomic nervous system. Control of these organs can be disrupted in people with spinal cord injury (SCI). This may affect their ability to regulate blood pressure during daily activities and process the high-level information. Previous studies show that high-intensity exercise induces better outcomes on heart and information processing ability in non-injured people compared to moderate-intensity exercise. However, it is unknown the effects of high-intensity exercise on heart and brain function in people with SCI. Therefore, this study aims to examine the effects of a single bout of high-intensity interval training on heart and brain function in this people with SCI compared to age- and sex-matched non-injured controls.

Read the detailed description

This study will be a cohort control study involving two groups: individuals with SCI, whose level of injury is at the 6th thoracic vertebra or above, and age- and sex-matched controls. Eligible participants will be asked to visit the Laboratory located at 115 Kimball Tower, University at Buffalo South Campus, twice. The first visit takes up to 3 hours, and the second visit takes up to 5 hours.

Being tested
High-intensity interval exercise
Medical subject headings
Spinal Cord Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • High-intensity interval exerciseBehavioural

    Three high-intensity exercise bouts, each at 100% of maximal power output for 20 seconds, interspersed with active recovery periods of 120 seconds at 10% of maximal power output.

Study groups in NCT06274658
Study groupRoleWhat they receive
Spinal Cord InjuryThis group includes people with spinal cord injury and the level of injury is at the 6th thoracic vertebra or above.
Receives: Behavioral: High-intensity interval exercise
Non-injured ControlsThis group includes age- and sex-matched non-injured control participants.
Receives: Behavioral: High-intensity interval exercise

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Low frequency of systolic blood pressure variability

    Biomarker for autonomic nervous system function

    Measured: Baseline, Physiological tests pre- and 10 minutes post-exercise

  2. High frequency of heart rate variability

    Biomarker for autonomic nervous system function

    Measured: Baseline, Physiological tests pre- and 10 minutes post-exercise

  3. Blood pressure

    Biomarker for autonomic nervous system function

    Measured: Baseline, Physiological tests pre- and 10 minutes post-exercise

  4. Heart rate

    Biomarker for autonomic nervous system function

    Measured: Baseline, Physiological tests pre- and 10 minutes post-exercise

Secondary outcomes (5)
  1. Cerebral blood flow velocity

    Biomarker for cerebrovascular function

    Measured: Baseline, cognitive tests pre- and 10-minutes post-exercise

  2. Symbol Digit Matched Test score

    Assessment for cognitive function

    Measured: Baseline, cognitive tests pre- and 10-minutes post-exercise

  3. California Verbal Learning Test score

    Assessment for cognitive function

    Measured: Baseline, cognitive tests pre- and 10-minutes post-exercise

  4. Color-Word Stroop Test score

    Assessment for cognitive function

    Measured: Baseline, cognitive tests pre- and 10-minutes post-exercise

  5. Controlled Word Association Task score

    Assessment for cognitive function

    Measured: Baseline, cognitive tests pre- and 10-minutes post-exercise

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2024
  2. Study start14 Feb 2024
  3. Primary completion30 Jun 2025
  4. Study completion31 Jul 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06274658
Sponsor's protocol ID
STUDY00006517
Status last verified
Aug 2025
First submitted
13 Feb 2024
Last updated
3 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Ji W, Wecht JM, Jo HJ, Stefanovic F, Miecznikowski J, Chiaravalloti ND, Sisto SA. Effects of a single bout of high-intensity-interval exercise on cardiovascular autonomic, cerebrovascular, and cognitive function in people with spinal cord injury: A study protocol. PLoS One. 2025 Jul 1;20(7):e0326861. doi: 10.1371/journal.pone.0326861. eCollection 2025.

    PubMed 40591703

Questions about this trial

What is this clinical trial studying?

An observational study of Autonomic Nervous System Disease and Spinal Cord Injuries, run by State University of New York at Buffalo at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Low frequency of systolic blood pressure variability (time frame: Baseline, Physiological tests pre- and 10 minutes post-exercise). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06274658, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Sep 2025.

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