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| ID | Type | Description | Link |
|---|---|---|---|
| 2014-A01257-40 | Other Identifier | ANSM |
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The main objective of this study is to compare between groups the level of complexity of the estimated sensorimotor performance through multi-fractal (minmaxMF-DFA) exponents.
The secondary objectives of this study are to compare the level of complexity of the estimated sensorimotor performance using the(A) mono-fractal exhibitors (the αDFA values) and the (B) coefficient of variation (CV) between groups.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control group | Other | Subjects randomized to this group will have a tapping test with no sensory blocking. Intervention: Tapping test |
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| Wrist anesthesia | Experimental | Subjects randomized to this group will have an axillary block / regional anesthesia followed by a tapping test. Intervention: Wrist anesthesia Intervention: Tapping test |
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| Wrist anesthesia, masked | Experimental | Subjects randomized to this group will have an axillary block / regional anesthesia, will wear a blinding mask, and then will perform a tapping test. Intervention: Wrist anesthesia Intervention: Blinding mask Intervention: Tapping test |
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| Wrist anesthesia, helmet | Experimental | Subjects randomized to this group will have an axillary block / regional anesthesia, will wear an anti-noise helmet, and then will perform a tapping test. Intervention: Wrist anesthesia Intervention: Anti-noise helmet Intervention: Tapping test |
|
| Wrist anesthesia, masked & helmet |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Wrist anesthesia | Drug | Prior to the tapping test, regional anesthesia is performed in the form of sensory blocks distal to the wrist: injection of ropivacaine 7.5mg / ml is carried out successively in contact with three nerves (ulnar, median and radial) with a volume of 2 ml for nerve, for a total of 45mg. |
| Measure | Description | Time Frame |
|---|---|---|
| minmaxMF-DFA value during the tapping test | The level of complexity of the estimated sensorimotor performance as measured by the multi-fractal exponents. | Day 0 |
| Measure | Description | Time Frame |
|---|---|---|
| Coefficient of variation | Day 0 | |
| αDFA value during the tapping test | The level of complexity of the estimated sensorimotor performance as measured by the single-fractal exponent. | Day 0 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Kjerstin Torre, MD, PhD | Centre Hospitalier Universitaire de Nīmes | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Laboratoire Movement to Health (M2H), Euromov, Université Montpellier 1 | Montpellier | 34090 | France | |||
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 31673034 | Result | Torre K, Vergotte G, Viel E, Perrey S, Dupeyron A. Fractal properties in sensorimotor variability unveil internal adaptations of the organism before symptomatic functional decline. Sci Rep. 2019 Oct 31;9(1):15736. doi: 10.1038/s41598-019-52091-y. |
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Subjects randomized to this group will have an axillary block / regional anesthesia, will wear a blinding mask, will wear an anti-noise helmet, and then will perform a tapping test. Intervention: Wrist anesthesia Intervention: Blinding mask Intervention: Anti-noise helmet Intervention: Tapping test |
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| Blinding mask | Other | Patients will don a mask that prevents them from seeing during the tapping test. |
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| Anti-noise helmet | Other | Patients will don a helmet that prevents them from hearing during the tapping test. |
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| Tapping test | Other | Subjects will be placed at a table in a sitting position where they will perform a rhythmic finger tapping test. The seat height is adjusted so that the front dominant arm rests comfortably on the table. Subjects will be equipped with headphones to receive auditory signals during a first synchronized phase of tapping. After the last auditory signal, participants will continue the tapping task by themselves as directed: "after the metronome stops,continue tapping the prescribed tempo as accurately and consistently as possible throughout the test." The movements of the index finger will be measured by a single-axis accelerometer (15 × 15 mm) attached to the nail. |
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| CHU de Montpellier - Hôpital Lapeyronie |
| Montpellier |
| 34295 |
| France |
| CHRU de Nîmes - Hôpital Universitaire Carémeau | Nîmes | 30029 | France |