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Research to determine whether mitochondrial function can be an indicator to assess exercise tolerance during rehabilitation of critically ill patients.

Evaluation of mitochondrial oxygen pressure (MitoPO2) and oxygen consumption (MitoVO2) as biomarkers for exercise tolerance during active rehabilitation in critically Ill patients (METRIC) - METRIC study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON61321
Enrollment
42
Registered
2026-03-18
Start date
2026-08-01
Completion date
Unknown
Last updated
2026-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Critical illness intensive care patients

Interventions

All patients will undergo an active physiotherapeutic intervention, such as sitting at the edge of the bed, standing, or walking.&nbsp

Sponsors

Erasmus MC, Universitair Medisch Centrum Rotterdam
Lead Sponsor

Eligibility

Age
18 Years to 64 Years

Inclusion criteria

Inclusion criteria: Patients over 18 years of age who have been ventilated in the ICU for more than 48 hours, have no neurological diagnosis and had an order for physical therapy during the ICU admission.Patients who are competent to provide consentPatients meet the safety criteria for active physical therapy

Exclusion criteria

Exclusion criteria: Patients with neurological disorder as primary reason for admission to the ICU (ie, subarachnoid bleeding, stroke, traumatic brain injury, neuro muscular disease) were not screened for eligibility. Exclusion criteria included contraindications to perform physical exercise safely according to the criteria of the Evidence Statement for physical therapy in the ICU, unable to follow instructions (measured with the Standardized 5 Questions)Recent myocardial ischemiaHart frequency <40 or > 130 /mBlood pressure: Map <60 mmHg or >110 mmHg Pulse oxymetry: = 90% Mechanical ventilation: FiO2 =0.6 (60%) PEEP= 10cm H2O Breathing frequency: Frequency > 40 per minute Level of consciousness : RASS score: -4, -5, 3 or 4 Dose of inotropes: Dopamine > 10 mcg/kg/min Nor/adrenaline = 0.1 mcg/kg/min Temperature: = 38.5 degrees Celsius=36 degrees Other: Pain, fatigue Surgical contra-indications (i.e. instable fractures, bone flap, open abdomen or thorax) Insufficient knowledge of the Dutch language, One or more amputated lower extremities, People unable to consent/ incapacitated peopleCooperative of S5Q < 3 from the Standardized 5 Questions

Design outcomes

Primary

MeasureTime frame
Can mitochondrial oxygen pressure (mitoPO2) and oxygen consumption (mitoVO2) be used as a marker for exercise tolerance during active rehabilitation in critically ill patients.To explore whether MitoPO2 and MitoVO2 can serve as an early marker for overexertion as indicated by a decrease in MitoPO2 and MitoVO2 occurring before lactate rises, enabling early detection of overexertion.

Secondary

MeasureTime frame
To investigate risk factors for exercise intoleranceIs the baseline value of in MitoPO2 and MitoVO2 predictive of readiness tolerance? Is over-exercise associated with a dissociation between MitoPO2 and MitoVO2?Does a specific level of inflammatory parameters correlate with lactate, MitoPO2, and MitoVO2?How do MitoPO2 and MitoVO2 correlate between rest and exercise, and how do they compare with other parameters used to measure exercise?Parameters: Blood pressure, heartrate, breathing frequency, cardiac output, oxygen saturation, shunt fraction, PO2, PCO2, PH 

Countries

Netherlands

Contacts

Public ContactN.P Juffermans

Erasmus MC, Universitair Medisch Centrum Rotterdam

n.juffermans@erasmusmc.nl0641813457

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jul 23, 2026