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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03814460
Other study ID # Myoton18
Secondary ID
Status Completed
Phase
First received
Last updated
Start date February 2, 2019
Est. completion date August 25, 2019

Study information

Verified date September 2019
Source University of Seville
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Spasticity is defined as a state of increased muscle tone, which evokes an increased resistance to a passive and fast stretching of the muscle. Indeed, the degree of spasticity depends, among other things, on the stretching velocity performed to the muscle. However, most of the tools used in the clinical setting to assess spasticity do not take into account the relationship between increased muscle tone and speed of stretching. Instead of that, muscle tone is usually assessed in a relaxed position of the muscle.

Likewise, to date, despite the functional disabilities related to the presence of chronic pain after a stroke, no previous study has correlated muscle tone and pressure pain sensitivity within this population


Recruitment information / eligibility

Status Completed
Enrollment 65
Est. completion date August 25, 2019
Est. primary completion date August 25, 2019
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria:

- Be older than 18 years

- Clinical diagnosis of stroke, confirmed using a MRI.

- No previous history of other strokes.

- Increases muscle tone in upper and lower extremities (punctuation equal to or superior to 1 in the Tardieu Scale, Ashworth Scale)

- Ability to understand the study goals, follow simple instructions and provide informed consent.

- Score equal to or superior to 24 in the Minimental State Examination.

Exclusion Criteria:

- Any other confirmed neurological disorder that may influence muscle tone (multiple sclerosis, Parkinson, muscle dystrophies...)

- A chronic musculoskeletal disorder in the upper or lower limb.

- Previous history of surgery in the upper or lower extremities.

- Changes in the medication intake that may affect muscle tone assessments in the 48 hours before data collection.

- Having received botulin toxin in gastrocnemius or biceps brachii muscles in the 30 days before data collection.

- A concomitant acute infection during data collection.

- A previous epileptic crisis in the week before the study or during the study.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
Assessment of Tone, Pain and Thickness
Evaluation of Muscle state of tension, self-reported response to mechanical pressure pain and muscle thickness. The evaluation process of muscle tone and pressure pain sensitivity will be carried out following a topographical mapping covering myotendinous and muscle belly sites in the biceps brachii and the gastrocnemius muscles

Locations

Country Name City State
Spain University of Sevilla Sevilla
Spain Physiotherapy Department, University of Seville Seville

Sponsors (3)

Lead Sponsor Collaborator
University of Seville Hospital Universitario Virgen Macarena, Hospitales Universitarios Virgen del Rocío

Country where clinical trial is conducted

Spain, 

Outcome

Type Measure Description Time frame Safety issue
Primary Pressure Pain Threshold, assessed by Manual Pressure Algometry A handheld electronic pressure algometer with a 1-cm2 contact probe will be used. Pressure pain thresholds (PPTs), as the minimum necessary pressure force to evoke pain, will be assessed bilaterally over biceps brachii and the gastrocnemius muscles (medial and lateral). Assessments will be made using a topographical mapping covering myotendinous and muscle belly sites in the above mentioned muscles. A 30-second break will be used between assessments to prevent bruising, and an average of the two measures over each site will be calculated for the statistical analysis. Pressure algometry is reliable in healthy individuals, and in stroke patients One time assessment
Primary Muscle Tone Assessment, using the modified Tardieu Scale The modified Tardieu Scale is the most common tool used in the clinical setting to evaluate the muscle tone. The muscle response to a slow and fast stretching will be performed. During the fast stretching, the joint angle in which the muscle responds with difficulty will be collected using an electrogoniometer. One time assessment
Secondary Muscle Stiffness, assessed by a myotonometer The stiffness of the biceps brachii and gastrocnemius muscles will be collected using a handheld myotonometer device, the so-called MyotonPRO, (Myoton AS, Estonia). The MyotonPRO is small, non-invasive, and it has shown good validity and high reliability in larger and smaller body muscles. This device delivers a multi-scan mode of three brief mechanical impulses, each one shortly followed by a quick release, to record the damped natural oscillation of the muscle using an accelerometer.
Evaluations will be made in the affected and non-affected sides of stroke patients and in dominant and non-dominant sides of control participants.
One time assessment
Secondary Muscle State of Tension (Muscle Tone), assessed by a myotonometer The tone of the biceps brachii and gastrocnemius muscles will be collected using a handheld myotonometer device, the MyotonPRO, (Myoton AS, Estonia). The MyotonPRO is small, non-invasive, and it has shown good validity and high reliability in larger and smaller body muscles. This device delivers a multi-scan mode of three brief mechanical impulses, each one shortly followed by a quick release, to record the damped natural oscillation of the muscle using an accelerometer.
Evaluations will be made in the affected and non-affected sides of stroke patients and in dominant and non-dominant sides of control participants.
One time assessment
Secondary Muscle Thickness The thickness of the assessed muscles will be evaluated using ecography. Muscle thickness will be assessed in one point corresponding to a myotendinous site and one point corresponding to a muscle belly location in both, the biceps brachii and gastrocnemius muscles.
Evaluations will be made in the affected and non-affected sides of stroke patients and in dominant and non-dominant sides of control participants.
One time assessment
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