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Shocking recovery: muscle zaps may help heart patients get back on their feet

NCT ID NCT05338437

Symptom relief Sponsor: University of Vermont Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether using a device that electrically stimulates the thigh muscles at home, for 4 weeks after a hospital stay, could help people with heart failure walk farther and feel stronger. Only 8 people took part, so the results are very early. The goal is to find a simple way to improve recovery without needing to go to a gym or clinic.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Neuromuscular electrical stimulation (device)
What this could lead to
If it works, this could point toward a simple at-home therapy to help heart failure patients regain strength after a hospital stay.
What could go wrong
This is a very small pilot study with only 8 participants, so results may not apply to everyone. The device may not provide meaningful benefit over standard care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

8 people

The number who actually took part.

Started

Feb 2022

Finished

Sep 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 to 90 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 50-90 years of age * clinical diagnosis of HF being actively managed during hospitalization * live within 30 miles of the medical center * able to perform informed consent Exclusion Criteria: * rheumatoid arthritis or other inflammatory/autoimmune disease * cancer, excluding non-melanoma skin cancer or low-grade prostate cancer * severe dementia/alzheimer's disease * exercise limiting peripheral vascular disease * neuromuscular disease or neuromuscular dysfunction associated with cerebrovascular event * body mass index ≥40 kg/m2 * lower extremity blood clot or implantable cardioverter-defibrillator or pacemaker

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Conditions

The condition(s) this trial relates to.

diastolic heart failure

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Heart failure with preserved ejection fraction

Contacts and locations

Locations

  • University of Vermont Medical Center

    Burlington, Vermont, 05405, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.