Reliability, Validity, and Responsiveness of Myotonometric Measurement of Muscle Tone, Elasticity, and Stiffness in Patients With Stroke (original) (raw)
Related papers
Stroke Research and Treatment, 2012
Objective. Test-retest reliability of the myotonometer was investigated in patients with subacute stroke. Methods. Twelve patients with substroke (3 to 9 months poststroke) were examined in standardized testing position twice, 60 minutes apart, with the Myoton-3 myometer to measure tone, elasticity, and stiffness of relaxed bilateral biceps and triceps brachii muscles. Intrarater reliability of muscle properties was determined using intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the minimal detectable change (MDC). Results. Intrarater reliability of muscle properties of bilateral biceps and triceps brachii muscles were good (ICCs = 0.79-0.96) except for unaffected biceps tone (ICC = 0.72). The SEM and MDC of bilateral biceps and triceps brachii muscles indicated small measurement error (SEM% < 10%, MDC% < 25%). Conclusion. The Myoton-3 myometer is a reliable tool for quantifying muscle tone, elasticity, and stiffness of the biceps and triceps brachii in patients with subacute stroke.
Stroke Research and Treatment, 2012
Objective. Test-retest reliability of the myotonometer was investigated in patients with subacute stroke. Methods. Twelve patients with substroke (3 to 9 months poststroke) were examined in standardized testing position twice, 60 minutes apart, with the Myoton-3 myometer to measure tone, elasticity, and stiffness of relaxed bilateral biceps and triceps brachii muscles. Intrarater reliability of muscle properties was determined using intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the minimal detectable change (MDC). Results. Intrarater reliability of muscle properties of bilateral biceps and triceps brachii muscles were good (ICCs = 0.79-0.96) except for unaffected biceps tone (ICC = 0.72). The SEM and MDC of bilateral biceps and triceps brachii muscles indicated small measurement error (SEM% < 10%, MDC% < 25%). Conclusion. The Myoton-3 myometer is a reliable tool for quantifying muscle tone, elasticity, and stiffness of the biceps and triceps brachii in patients with subacute stroke.
2021
The purpose of the present study was to investigate the inter-rater and intra-rater reliability of the MyotonPRO for measuring the mechanical properties of the upper limp muscles in patients with chronic stroke. The study was conducted with 20 stroke patients (14 males, 6 females) with age range of 36–84 years (65.1 ± 11.2 years). The oscillation frequency, stiffness, and logarithmic decrement of the biceps brachii, triceps brachii, deltoid, and upper trapezius muscles were measured using a MyotonPRO (Muomeetria Ltd., Tallinn, Estonia). The measurements were conducted by two physiotherapists to determine the inter-rater reliability of the device. A physiotherapist repeated the measurements 3 days after the first measurements for determining the intra-rater reliability of the device. The ICCs of the all assessed muscles ranged between 0.72 and 0.97. The coefficient of variation of all muscles ranged within 3.2%-11.0%, from 3.4–9.7% for oscillation frequency, from 3.9–7.4% for stiffne...
Customized Manual Muscle Testing for Post-Stroke Upper Extremity Assessment
Brain Sciences, 2022
In neuro-rehabilitation, the assessment of post-stroke patients’ motor function of damaged upper extremities (UEs) is essential. Clinicians need clear and concise assessment instruments to monitor progress recorded in intensive rehabilitation sessions. One such instrument is Manual Muscle Testing (MMT), which, in our view, requires a modified scoring model aimed at improving the assessment process of patients’ motor and functional UE status, and recording their step-by-step-progress, especially if patients undergo a short length of hospitalization (of about 10 therapy days). Hence, this paper presents a new scoring system developed by the authors. This systemresults in a more precise MMT grading scale, which has more grades and can provide a more specific muscular assessment, while offering more clarity in quantifying patients’ progress after physical therapy. A prospective study was made of 41 post-stroke patients with upper extremity (UE) impairments. To determine the validity of ...
Predicting Recovery of Bilateral Upper Extremity Muscle Strength After Stroke
Journal of …, 2011
To investigate the recovery pattern of bilateral upper extremity muscle strength and to predict the recovery of strength early after stroke using a logarithmic regression model. Design: Longitudinal study. Subjects: Twenty-one inpatients with post-stroke hemiparesis were enrolled. The mean time after stroke event was 7.1 days (standard deviation (SD) 3.5 days). Methods: Bilateral elbow flexion and extension strengths were assessed separately with a hand-held dynamometer. Grip strength was also assessed with a Jamar dynamometer. These measurements were carried out on 4 occasions: baseline assessment within 2 weeks following stroke onset, and at weeks 1, 2 and 3 following baseline evaluation. Recovery of flexion and extension strengths was predicted using a logarithmic model using scores at the initial 2 evaluations. Results: The time course of recovery for bilateral upper extremities resembled a logarithmic function. Moreover, on the basis of a logarithmic regression model, baseline measures of bilateral strengths sampled from 2 time-points during recovery could be applied to predict the pattern of recovery accurately during the subacute stroke phase (R 2 = 0.74-0.95, p < 0.0001). Conclusion: Upper extremity muscle strength improved significantly in a similar pattern on the sides contralateral and ipsilateral to the brain lesion. Moreover, a logarithmic regression model accurately predicted both measures.
Short-term recovery of limb muscle strength after acute stroke
Archives of Physical Medicine and Rehabilitation, 2003
Objectives: To document, by using norm-referenced strength measures, the recovery of limb muscle strength of patients undergoing stroke rehabilitation and to examine the relation between comorbidities and the recovery of strength after stroke. Design: Retrospective analysis of data from a consecutive convenience sample of patients examined clinically between 1994 and 1997. Setting: Acute inpatient rehabilitation unit. Participants: Fifty patients with stroke who were able to follow commands and were examined during acute rehabilitation by a single examiner (AWA). Interventions: Stroke rehabilitation emphasizing early movement, exercise with resistance, and daily functional activities. Main Outcome Measure: The strength at discharge of 7 muscle actions (shoulder abduction, elbow flexion, elbow extension, wrist extension, hip flexion, knee extension, ankle dorsiflexion) measured bilaterally with a hand-held dynamometer and compared with norm-referenced values. Results: Differences in strength between admission and discharge were significant for all muscle actions on the weaker side and for 4 of the 7 muscle actions on the stronger side. At discharge, the bilateral strength of all muscle actions was weaker than predicted by data from healthy individuals of comparable age, sex, and weight (FϾ17.000, PϽ.001). Strength did not differ between subjects who did and did not have a previous stroke or comorbidities. Conclusions: Subjects undergoing inpatient rehabilitation soon after stroke experienced an increase in limb muscle strength bilaterally. This increase was not influenced by previous stroke or comorbidities.