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Quantitative mechanical properties of the relaxed biceps and triceps brachii muscles in patients with subacute stroke: a reliability study of the myoton-3 myometer.

Chuang LL, Wu CY, Lin KC, Lur SY - Stroke Res Treat (2012)

Bottom Line: Results.The SEM and MDC of bilateral biceps and triceps brachii muscles indicated small measurement error (SEM% <10%, MDC% <25%).Conclusion.

View Article: PubMed Central - PubMed

Affiliation: School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.

ABSTRACT
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.

No MeSH data available.


Related in: MedlinePlus

The Myoton-3 myometer.
© Copyright Policy - open-access
Related In: Results  -  Collection


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fig1: The Myoton-3 myometer.

Mentions: Myotonometric measurements in bilateral biceps and triceps brachii muscles were performed at rest, using the Myoton-3 myometer (Muomeetria AS, Tallinn, Estonia) by a senior occupational therapist (Figure 1) [33]. Before measurement, participants were informed standard measurement procedure. Measurements were done with the participant lying supine for biceps brachii and side lying for triceps brachii in a relaxed manner, with the participants' arms at their sides and forearms between pronation and supination. The location of the measured muscles was first determined on the unafffected side, thereafter on the affected side. The participant was requested to make an effort by applying resistance with the biceps brachii or triceps brachii to the therapist's hand and at the same time the measuring points for the biceps brachii and triceps brachii were identified by the therapist according to bone prominence and palpation. The middle part of the muscle belly is suggested as the particular measuring point [18, 34], which was marked with a marker in order to replicate the positioning for the subsequent hour used for the reliability measures. For example, the measuring point for the biceps brachii was at the long head, lateral part of muscle, in the middle of arm; and that for the triceps brachii was at the medial head of muscle, in the middle part of arm [35]. The muscles of the unaffected side of the body were measured first. After participants were instructed to relax their muscles maximally, the testing end of the Myoton-3 was placed perpendicular on the skin surface overlying the measuring points of the respective bilateral biceps brachii and triceps brachii. Three consecutive measurements with roughly 1 second in between were taken in each muscle, and the average value was used for later analysis. The entire test session was repeated 60 minutes after the first session with the same procedure, same position, and same measuring point.


Quantitative mechanical properties of the relaxed biceps and triceps brachii muscles in patients with subacute stroke: a reliability study of the myoton-3 myometer.

Chuang LL, Wu CY, Lin KC, Lur SY - Stroke Res Treat (2012)

The Myoton-3 myometer.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3350849&req=5

fig1: The Myoton-3 myometer.
Mentions: Myotonometric measurements in bilateral biceps and triceps brachii muscles were performed at rest, using the Myoton-3 myometer (Muomeetria AS, Tallinn, Estonia) by a senior occupational therapist (Figure 1) [33]. Before measurement, participants were informed standard measurement procedure. Measurements were done with the participant lying supine for biceps brachii and side lying for triceps brachii in a relaxed manner, with the participants' arms at their sides and forearms between pronation and supination. The location of the measured muscles was first determined on the unafffected side, thereafter on the affected side. The participant was requested to make an effort by applying resistance with the biceps brachii or triceps brachii to the therapist's hand and at the same time the measuring points for the biceps brachii and triceps brachii were identified by the therapist according to bone prominence and palpation. The middle part of the muscle belly is suggested as the particular measuring point [18, 34], which was marked with a marker in order to replicate the positioning for the subsequent hour used for the reliability measures. For example, the measuring point for the biceps brachii was at the long head, lateral part of muscle, in the middle of arm; and that for the triceps brachii was at the medial head of muscle, in the middle part of arm [35]. The muscles of the unaffected side of the body were measured first. After participants were instructed to relax their muscles maximally, the testing end of the Myoton-3 was placed perpendicular on the skin surface overlying the measuring points of the respective bilateral biceps brachii and triceps brachii. Three consecutive measurements with roughly 1 second in between were taken in each muscle, and the average value was used for later analysis. The entire test session was repeated 60 minutes after the first session with the same procedure, same position, and same measuring point.

Bottom Line: Results.The SEM and MDC of bilateral biceps and triceps brachii muscles indicated small measurement error (SEM% <10%, MDC% <25%).Conclusion.

View Article: PubMed Central - PubMed

Affiliation: School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.

ABSTRACT
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.

No MeSH data available.


Related in: MedlinePlus