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Locomotor Muscle Oxygenation and Activation During Acute Interval Compared to Constant-load Bed-cycling Exercise

NCT05279547 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-03-18

No results posted yet for this study

Summary

Up to 60% of patients admitted to the Intensive Care Unit (ICU) with a prolonged stay in the ICU develop complications such as intensive care unit acquired weakness (ICUAW) characterized by limb and respiratory muscle weakness. ICUAW is associated with worse prognosis, longer ICU stay and increased morbidity and mortality.

Physical therapy (PT) interventions in the intensive care unit (ICU), can improve patients' outcomes.

However, improvements in muscle function achieved with standard physical activity interventions aiming at early mobilization are highly variable due to lack of consistency in definition of the interventions, lack of consideration for the complexity of exercise dose and/or insufficient stimulation of muscles during interventions. It has been suggested that modifying early mobilization and exercise protocols towards shorter intervals consisting of higher intensity exercises might result in more optimal stimulation of muscles.

In the present study the researchers therefore aim to simultaneously assess (by non-invasive technologies) locomotor muscle oxygenation and activation along with the measurements of the load imposed on respiration and circulation during two different training modalities i.e., moderate intensity continuous bed-cycling (endurance training) vs high-intensity alternated by lower intensity periods of bed-cycling (interval training).

Conditions

  • Intensive Care Unit Acquired Weakness
  • Critical Illness

Interventions

OTHER

Constant-load bed-cycling exercise

Patients will actively cycle for a minimum duration of 10 minutes and a maximum duration of 20 minutes without breaks.

OTHER

Interval bed-cycling exercise

Patients will cycle for the same duration as during constant-load exercise. Interval bed-cycling session will consist of 30 seconds of high intensity exercise alternated by 30 seconds of passive cycling designed so that volume of training will be equal.

Sponsors & Collaborators

  • Universitaire Ziekenhuizen KU Leuven

    collaborator OTHER

  • KU Leuven

    lead OTHER

Principal Investigators

  • Daniel Langer, Prof. Dr. · KU Leuven

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-02-01
Primary Completion
2028-12-31
Completion
2028-12-31

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05279547 on ClinicalTrials.gov