AdobeStock 336657986

All research is done in cooperation with Interactive Studios, Maastricht University and Tilburg University


Published articles:

  1. Test-retest reliability of the FitMáx©-questionnaire in a clinical and healthy population (Springer open: Journal of Patient Rep Outcomes) [2024]
  2. Evaluation of two self-reported questionnaires for assessment of peak exercise capacity in patients with chronic heart failure (Oxford Academic: European Journal of Preventive Cardiology) [2023]
  3. Monitoring aerobic capacity in cancer survivors using self-reported questionnaires: criterion validity and responsiveness (Springer open: Journal of Patient-Reported Outcomes) [2023]
  4. Estimating VO2peak in 18–90 Year-Old Adults: Development and Validation of the FitMáx©-Questionnaire (Dove Press: International Journal of General Medicine) [2022]

Submitted articles:

  1. Preoperative risk assessment with FitMáx© |
    Positioning FitMáx© in the clinical context of prehabilitation as a tool to assess low exercise capacity with its increased risk of complications during and after surgery [Submitted]
  2. Comparing the reliability of FitMáx© compared to other exercise test | 
    FitMáx© is compared to steep ramp test and 6 minute walk test with cardiopulmonary exercise testing as the gold standard

Currently under investigation:

  1. Reliability to asses the phyisical fitness in COVID-19 survivors |
    The FitMáx© is used to estimate the physical fitness with cardio pulmonary exercise test as the gold standard
  2. Recall bias of the FitMáx© |
    Reliability for estimating cardiorespiratory fitness in retrospective situations with the FitMáx©


  1. Telerehabilitation in patients with recent hospitalisation due to acute decompensated heart failure: protocol for the Tele-ADHF randomised controlled trial (BMC Cardiovascular Disorders)
  2. Multimodal prehabilitation in patients with non-small cell lung cancer undergoing anatomical resection: protocol of a non-randomised feasibility study. (Perioperative Medicine BMC) [2023]
  3. LOFIT (Lifestyle front Office For Integrating lifestyle medicine in the Treatment of patients): a novel care model towards community-based options for lifestyle change-study protocol (Trails BMC) [2023]
  4. Usefulness of the Duke Activity Status Index to Assess Exercise Capacity and Predict Risk Stratification in Patients with Pulmonary Arterial Hypertension (Journal of Clinical Medicine MDPI) [2023]
  5. Adherence to a lifestyle monitoring system in patients with heart disease: protocol for the care-on prospective observational trial (Cardiovascular disorders BMC) [2023]

Current research is conducted following the international COSMIN criteria for development and optimising questionnaires.

All research is done in cooperation with: