Biomarkers of Reaction To HIIT Exercise for Stroke Survivors

This study is looking at how High-Intensity Interval Training (HIIT) affects walking ability in stroke survivors. HIIT involves three weekly cycling sessions for 12 weeks. Researchers want to understand why some people respond well to HIIT and others don't. They will look at factors like blood lactate (a chemical in your blood after exercise) and brain chemicals (like GABA) to predict who will improve their walking speed. This study is for Veterans aged 18 to 89 who had a stroke at least six months ago and have difficulty walking. Success in this study means seeing improvements in walking tests like the 10-meter walk, Timed-Up-and-Go, and 6-minute walk tests after 12 weeks of exercise. The current status of this study is unclear.

Study design
This is an interventional study planning to enroll 55 participants. It is not specified if it is randomized or blinded.
What's involved
You would participate in three weekly 25-60 minute cycling sessions for 12 weeks, for a total of 36 sessions. Your walking ability will be tested at the beginning and after 12 weeks of exercise.
Compensation
Not stated in the trial record.
Follow-up
Your walking ability will be assessed at baseline (week 1) and after 12 weeks of exercise (week 14).

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06059872

Biomarkers of Reaction To HIIT Exercise

Recruiting
NAAges 18–89InterventionalTreatment
VA Office of Research and Development
~55 participants
Updated 2026-03-27 on ClinicalTrials.gov
What's tested:High Intensity Interval Training (HIIT)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
10 m walk test on a GAITRite mat
Measured over baseline (week 1) and after the completion of 12 weeks of exercise (week 14)
+2 more outcomes measured
Stroke
Stroke Rehabilitation
Lower Extremity Weakness, Spastic
Walking, Difficulty

NCT06059872

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Atlanta VA Medical and Rehab Center, Decatur, GA

    Decatur, Georgiastudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Lisa C Krishnamurthy, PhD · PRINCIPAL_INVESTIGATOR · Atlanta VA Medical and Rehab Center, Decatur, GA

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Eligibility criteria

Inclusion

chronic left or right subcortical stroke as defined by 6 months or more after a cardiovascular accident
lower extremity motor impairment due to stroke that causes a walking speed of less than 0.6 m/s during a 10m walk
Veteran status

Exclusion

MRI contraindications, including implanted cardiac pacemakers and severe claustrophobia
any neurodegenerative condition other than stroke that may lead to lower extremity impairment
a visual or auditory impairment that may hinder study procedures
any medical condition that would preclude participation in a physical exercise intervention program
  • 10 m walk test on a GAITRite matbaseline (week 1) and after the completion of 12 weeks of exercise (week 14)

    To assess short-distance walking speed and gait characteristics.

  • Timed-Up-and-Go (TUG) testbaseline (week 1) and after the completion of 12 weeks of exercise (week 14)

    To assess short-distance walking and postural control.

  • 6-minute walk testbaseline (week 1) and after the completion of 12 weeks of exercise (week 14)

    To assess endurance.