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Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients
Published on: April 12, 2011
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Muscle Strength in ICU Patients Measured by Handgrip Dynamometer and ICU-Acquired Weakness: A Prospective,
Robert Fiut1, Weronika Wasyluk2, Izabela Świetlicka3
1Department of Clinical Physiotherapy, Medical University of Lublin, Lublin, Poland.
Summary
ICU-acquired weakness recovery varies significantly. Factors like ICU stay duration and sedation impact muscle strength regain, highlighting the need for personalized rehabilitation strategies for critically ill patients.
Area of Science:
- Critical Care Medicine
- Neurology
- Rehabilitation Science
Background:
- ICU-acquired weakness (ICU-AW) is a major cause of muscle impairment in critically ill patients.
- Inconsistent data on recovery timelines and influencing factors impede effective rehabilitation strategies.
- Understanding recovery dynamics is crucial for optimizing patient outcomes.
Purpose of the Study:
- To determine the time required for muscle strength to surpass the ICU-AW diagnostic threshold.
- To identify factors influencing the speed of muscle strength recovery.
- To assess the proportion of patients reaching specific strength percentiles (P10, P50) during ICU stay.
Main Methods:
- Prospective, single-center observational study of 178 patients undergoing early physiotherapy.
- Muscle strength assessed using a handgrip dynamometer.
- Analysis of time to achieve strength above diagnostic cutoff (men ≥11 kg, women ≥7 kg) and influencing factors.
Main Results:
- Mean recovery time to exceed the ICU-AW threshold was 26.84 days.
- Quartile analysis: 25% recovered within 5 days, 50% within 13 days, 75% within 41 days.
- ICU stay duration, sedation, mechanical ventilation, consciousness regain, initial strength, and weight significantly affected recovery speed.
Conclusions:
- Significant variability exists in muscle strength recovery among ICU patients.
- Individualized rehabilitation programs are essential for optimizing recovery.
- Further research should focus on optimizing identified factors to enhance treatment outcomes.
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