About this trial
This clinical trial aims to evaluate whether continuous passive motion (CPM) can prevent ankle joint contracture and muscle atrophy in critically ill patients receiving mechanical ventilation in the ICU. The study will also assess the feasibility and safety of implementing CPM therapy in this population.
The primary objectives are:
To determine whether CPM preserves ankle dorsiflexion range of motion during ICU immobilization.
To assess whether ultrasound can detect changes in tibialis anterior muscle morphology in response to CPM.
In this within-subject design, each participant will receive CPM therapy on one ankle while the contralateral ankle serves as the control. Outcomes related to joint mobility and muscle condition will be compared between the two sides.
Participants will:
Receive CPM treatment on one ankle for 30 minutes, twice daily, for up to 7 days or until ICU discharge.
Undergo goniometric and ultrasound assessments at baseline and after the intervention.
Continue to receive standard ICU care throughout the study period.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
None
Disqualifiers
Neuromuscular disorders
Recent lower limb surgery or trauma
Critical limb ischemia
Limb amputation
Trial design
Single group
Treatments tested in this trial
Continuous Passive Motion
DeviceContinuous passive motion was applied to the left ankle joint for 30 minutes twice a day using a motorized CPM device.
Treatment groups
Trial outcomes
Primary outcomes
Change in Passive Ankle Dorsiflexion Range of Motion (ROM)
Difference in passive ankle dorsiflexion angle between baseline and Day 7, measured using a goniometer. The left (intervention) and right (control) ankles will be compared within each subject. Reported in degrees (°).
Secondary outcomes
Tibialis Anterior Muscle Thickness
Change in muscle thickness of the tibialis anterior as measured by ultrasound. Measurements will be obtained directly from B-mode ultrasound images using the built-in caliper function of the ultrasound machine. Values will be reported in centimeters (cm).
Tibialis Anterior Muscle Cross-section Area
Change in cross-sectional area of the tibialis anterior muscle as measured by ultrasound. Measurements will be obtained directly using the built-in area tracing tool on the ultrasound machine during B-mode imaging. Values will be reported in square centimeters (cm²).
Tibialis Anterior Muscle Echointensity
Change in echointensity of the tibialis anterior muscle as measured from B-mode ultrasound images. Echointensity will be quantified using ImageJ software as the mean and standard deviation of grayscale values within a manually selected region of interest (ROI), ranging from 0 (black) to 255 (white). Reported in grayscale arbitrary units (AU).
Locations
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Sponsors and contacts
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