Increased muscle belly and tendon stiffness in patients with Parkinson's disease, as measured by myotonometry

Marusiak, Jarosław; Jaskólska, Anna; Budrewićz, Sławomir; Koszewicz, Magdalena; Jaskólski, Artur

doi:10.1002/mds.23841

Cited by 63 publications

(60 citation statements)

References 26 publications

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“…Marusiak et al [24] concluded that myotonometer is a sensitive tool to assess passive stiff ness of muscles in patients with Parkinson's disease as compared with healthy controls. Patients with Parkinson's disease have higher values of passive stiff ness of the muscle belly and tendon [25].…”

Section: Discussionmentioning

confidence: 99%

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

Sokk

Gapeyeva

Ereline

et al. 2013

AKUT

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Th is study evaluated changes in shoulder muscle isometric endurance, deltoideus and trapezius muscle electromyographic activity (EMG) and stiff ness in patients with frozen shoulder syndrome (FSS) before and aft er manipulation under general anaesthesia (MUA). Eighteen FSS patients with mean age of 53±9 years participated. Isometric endurance of shoulder muscles was characterized by endurance test time and deltoideus and trapezius muscles EMG activity that were assessed by electromyograph during weight holding in hand until exhaustion. Stiff ness of deltoideus and trapezius muscles was assessed by myotonometer (MYOTON-3). Patients were screened by self-administered shoulder rating questionnaire (SRQ). Data was collected before one and six months aft er MUA. Six months aft er MUA endurance test time remained reduced (p<0.05) for the involved extremity as compared with the uninvolved extremity. Deltoideus and trapezius muscle EMG activity decreased (p<0.05) at the end of the endurance test, whereas in the beginning of the endurance test the trapezius muscle EMG was lower (p<0.05) for the involved extremity. Deltoideus and trapezius muscle stiff ness did not diff er (p<0.05). SRQ score points decreased (p<0.05) one and six months aft er MUA. In conclusion, six months aft er MUA the shoulder muscle EMG activity and stiff ness for the involved extremity was normalized in patients with FSS.

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Section: Discussionmentioning

confidence: 99%

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

Sokk

Gapeyeva

Ereline

et al. 2013

AKUT

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“…Changes in muscle tone and properties could be used to assess effects of pathology [7,12], sport-related injury [25] or therapeutic intervention [14,20]. Such assessments could be performed at regular intervals to monitor the stage of the pathological processes of muscles [19] and for assessing efficacy of therapeutic interventions [14,20].…”

Section: Introductionmentioning

confidence: 99%

“…However, MAS results lack objective grading and reliability [5,16] and are not well correlated with muscle stiffness after stroke [3]. To meet this need, a novel approach, myometric measurement, has been introduced showing reliable [2,4,15], objective and user independent measurements [1, 10,22] for healthy adults [8] as well as for various patient populations, including Parkinson's disease [13,21] and stroke [6] patients. As well as being used to evaluate the tone and biomechanical properties of muscles and tendons (e.g.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of monitoring muscle health in microgravity environments using Myoton technology

Schneider

Peipsi²,

Stokes

et al. 2014

Med Biol Eng Comput

110

101

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Physical exercise is important for people living under extreme environmental conditions to stay healthy. Particularly in space, exercise can partially counteract the loss of muscle mass and muscle strength caused by microgravity. Monitoring the adaptation of the musculoskeletal system to assess muscle quality and devise individual training programmes is highly desirable but is restricted by practical, technical and time constraints on board the International Space Station (ISS). This study aimed to test the feasibility of using myometric measurements to monitor the mechanical properties of skeletal muscles and tendons in weightlessness during parabolic flights.The mechanical properties (frequency, decrement, stiffness relaxation time and creep) of the m. gastrocnemius, m. erector spinae and Achilles tendon were assessed using the hand-held MyotonPRO device in 11 healthy participants (aged 47 +/-9 years) in normal gravity as well as in microgravity during two parabolic flight campaigns. Results showed significant (p < .05-.001) changes in all mechanical properties of both muscles and the Achilles tendon, indicating a more relaxed tissue state in microgravity. Recordings from a phantom rubber material with the device in a test rig confirmed that the device itself was not affected by gravity, as changes between gravity conditions that were too small (<1%) to explain the changes observed in the tissues.It is concluded that myometric measurements are a feasible, easy to use and non-invasive approach to monitor muscle health in extreme conditions that prohibit many other methods.Real-time assessment of the quality of a muscle being exposed to the negative effect of microgravity and also the positive effects of muscular training could be achieved using Myoton technology.

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“…The MyotonPRO is a small, non-invasive, handheld myotonometer that provides an objective measure of the mechanical properties of in vivo muscles. 26 To date, the device has shown good validity [27][28][29] and high reliability [30][31][32][33] when used with the larger muscles of the upper and lower limbs.…”

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confidence: 99%

Myotonometry Reliably Measures Muscle Stiffness in the Thenar and Perineal Muscles

Davidson¹,

Bryant

Bower

et al. 2017

Physiotherapy Canada

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Purpose: The authors investigated the reliability of myotonometry-measured muscle tone in the thenar and perineal muscles. Methods: Participants were women aged 18-50 years who were asymptomatic for thumb and pelvic floor dysfunction (interrater study n ¼ 20; intrarater study n ¼ 43) or who were symptomatic for vulvodynia (interrater study n ¼ 14; intrarater study n ¼ 32). Mechanical properties (stiffness, frequency, decrement, relaxation time, and creep) of the muscles were measured using a myotonometer (MyotonPRO) while the muscles were in a relaxed state. Measures were performed twice by two assessors. Intra-and interrater reliability were determined using intra-class correlation coefficients (ICCs) and absolute reliability using the standard error of measurement and a minimum detectable change. Results: The primary property of interest, muscle stiffness, showed very good interrater (ICC 0.85-0.86) and intrarater (ICC 0.82-0.88) reliability in the thenar eminence. In the perineal muscles, reliability results ranged from good to very good for interrater (ICC 0.70-0.86) and intrarater (ICC 0.80-0.91) reliability for muscle stiffness. Absolute reliability was confirmed, with all measures showing minimal variance. Conclusions: Muscle stiffness of the smaller muscles of the body can be reliably measured using the MyotonPRO. The device could be used as a reference standard in the development of a digital palpation scale that would facilitate accurate diagnosis of muscle tone.Key Words: muscle; perineum; reproducibility of results; thumb. RÉ SUMÉObjectif : é tudier la fiabilité de la raideur musculaire mesuré e par myotonomé trie dans les muscles de l'é minence thé nar et du pé riné e. Mé thodologie : Les participantes é taient des femmes â gé es de 18 à 50 ans ne pré sentant aucun symptô me de dysfonctionnement du pouce ni du plancher pelvien (é tude interé valuateur n ¼ 20; é tude intra-é valuateur n ¼ 43) ou pré sentant des symptô mes de vulvodynie (é tude interé valuateur n ¼ 14; é tude intra-é valuateur n ¼ 32). Les proprié té s mé caniques (raideur, fré quence, dé cré ment, temps de relaxation et fluage) des muscles au repos ont é té mesuré es à l'aide d'un myotonomè tre (MyotonPRO). Les mesures ont é té prises deux fois par deux é valuateurs. La fiabilité intra-é valuateur et interé valuateur a é té dé terminé e à l'aide des coefficients de corré lation intraclasse (CCI) et la fiabilité absolue à l'aide de l'é cart type de mesure et du changement minimal dé tectable. Ré sultats : la proprié té d'inté rê t principal, la raideur musculaire, a montré une trè s bonne fiabilité interé valuateur (CCI 0,85-0,86) et intra-é valuateur (CCI 0,82-0,88) pour l'é minence thé nar. Concernant les muscles du pé riné e, les ré sultats de fiabilité variaient de bons à trè s bons pour la fiabilité interé valuateur (CCI 0,70-0,86) et intra-é valuateur (CCI 0,80-0,91) pour la raideur musculaire. La fiabilité absolue a é té confirmé e, toutes les mesures montrant une variabilité minimale. Conclusions : la raideur musculair...

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Increased muscle belly and tendon stiffness in patients with Parkinson's disease, as measured by myotonometry

Abstract: Patients with Parkinson's disease have higher passive stiffness of the muscle belly and tendon than healthy matched controls.

Cited by 63 publications

References 26 publications

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

Shoulder muscle electromyographic activity and stiffness in patients with frozen shoulder syndrome: six-month follow-up study

Feasibility of monitoring muscle health in microgravity environments using Myoton technology

Myotonometry Reliably Measures Muscle Stiffness in the Thenar and Perineal Muscles

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