Muscle strength is an important indicator of overall health and is a factor that has been associated with increased mortality in critical patients. Its measurement must be reliable and reproducible to ensure a quality outcome for clinical applicability. Recently, the use of digital handheld dynamometers in intensive care has gained support; however, analysis becomes challenging due to the absence of standardized reference equations for the Brazilian population. The aim of this study is to develop reference equations for the Brazilian population and define specific cutoff points for men, women, healthy individuals, and critical patients.
Eligibility
Sex
ALL
Min age
18 Years
Max age
90 Years
Healthy volunteers
No
Inclusion Criteria:
* Healthy individuals of both sexes
* Patients and volunteers aged between 18 and 90 years old (youth/adults/elderly).
* Patients admitted to the ICU.
* No recent muscle injuries of both limbs for a past 6-months.
Exclusion Criteria:
Patients and volunteers \< 20 years and \> 90 years
Healthy individuals
* Unable to follow command completely
* Severe osteoporosis or neuromuscular disease leading to decreased muscle strength
* Presence of opened or infectious wound
* Presence of pain in evaluating muscle groups
Patients in ICU
* Unable to follow command completely
* Acute stroke
* Hip fracture, unstable cervical spine or pathological fracture
* Recent surgery involving the upper airways, chest, abdomen, or limbs
* Presence of opened or infectious wound
* Presence of pain in evaluating muscle groups
Primary outcome measure(s)
Peripheral muscle strength measured by hand held dynamometer — Day 1 Strength of the muscles of the upper and lower limbs using a digital hand held dynamometer in healthy individuals and critical patients.
Peripheral muscle strength measured by Medical Research Council score — Day 1 Global muscle strength using the Medical Research Council-sum score (MRC score) in healthy individuals and critical patients. The MRC score is obtained by evaluating muscle groups in the upper and lower extremities (wrist extensors, elbow flexors, abductors of the shoulder, dorsal ankle flexors, knee extensors, and hip flexors). For each muscle group will be assigned a score between 0 and 5, and the total score can vary between 0 (worse outcome) up to 60 points (the better outcome).
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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