Evaluating a new method for estimating fitness in heart failure and ischemic heart disease patients

Validity of SeismoFit VO2max Estimation in Patients With Heart Failure or Ischemic Heart Disease

Observational University of Copenhagen · NCT05520307

This study is testing a new device called SeismoFit to see if it can accurately measure fitness levels in people with heart failure and ischemic heart disease without needing them to exercise.

Quick facts

Study typeObservational
Enrollment180 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Copenhagen Academic / other
Locations1 site (Gentofte)
Trial IDNCT05520307 on ClinicalTrials.gov

What this trial studies

This study investigates the validity and reliability of the SeismoFit device for estimating VO2max in patients with heart failure (HF) and ischemic heart disease (IHD). It consists of three parts: a cross-sectional analysis involving 140 patients, a longitudinal follow-up with 100 patients, and a test-retest evaluation with 40 patients. The SeismoFit device uses seismocardiography to measure cardiac performance non-invasively at rest, providing a potential alternative to traditional exercise testing methods. The study aims to assess the effectiveness of this non-exercise VO2max prediction model in a clinical setting.

Who should consider this trial

Good fit: Ideal candidates include patients with heart failure or ischemic heart disease who are approved for exercise testing by a cardiologist.

Not a fit: Patients with absolute contraindications to training or conditions preventing maximal exercise testing will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more accessible and cost-effective method for assessing cardiorespiratory fitness in patients with heart conditions.

How similar studies have performed: While the use of seismocardiography for VO2max estimation is a novel approach, similar studies have shown promise in non-invasive cardiac assessments.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Fulfilling the guidelines for rehabilitation sat out by the Danish Society of Cardiology.
* Approved for exercise testing on a cycle ergometer by a specialized doctor in cardiology.

Exclusion Criteria:

* Absolute contraindications with training
* Conditions that prevent maximal exercise testing assess by a specialized doctor in cardiology.

Where this trial is running

Gentofte

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Cardiopulmonary Exercise TestSeismoFitCPETHeart FailureVO2max assessmentIschemic heart diseaseSeismocardiography
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.