Combining left neck muscle vibration to voluntary arm movements: To new perspectives in the therapeutic care in neglect
Among “Bottom-Up” treatments of unilateral spatial neglect (USN), left neck muscle vibration may reduce clinical symptoms in patients with right-sided brain damage. Shifting whole egocentric coordinate system, one of interests of this stimulation is that the patient is unaware of the perceptual and...
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| Published in: | Annals of physical and rehabilitation medicine Vol. 60; no. Suppl; p. e5 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier Masson SAS
01-09-2017
Elsevier Masson |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Among “Bottom-Up” treatments of unilateral spatial neglect (USN), left neck muscle vibration may reduce clinical symptoms in patients with right-sided brain damage. Shifting whole egocentric coordinate system, one of interests of this stimulation is that the patient is unaware of the perceptual and behavioral changes induced. Moreover, several studies have shown superior effects of combination treatments when their own effects were convergent. However, their practical applications are often conflicting with the constraints of patient care. This study aimed to assess the effects of a protocol of left neck muscle vibration during arm movements in the peri-personal space on the egocentric and allocentric perceptions of patients with left-sided spatial neglect (USNleft).
Five USNleft patients (54.5±5.5 years) were asked to perform the Marguerite test and a haptic straight-ahead test (20 ballistic pointings) without vision before protocol (Pre), immediately after (Post0), one hour later (Post1h). During a therapeutic protocol of 15minutes left trapezius muscle vibration (100Hz–300μm), they were asked to point to one of 5 lit targets [0° (straight ahead), 10° and 20° on the right and on the left], from the base of the chin rest with their right index finger, as quickly as possible.
The results suggested a reduction of neglect symptoms for at least 1hour after the protocol. The Marguerite test (Pre=20.01±8.21) showed an evolution by step of the laterality index with a dramatic decreasing at Post0 (−13.29), followed by a small reduction of this effect at Post1h (−5.82). The errors during straight-ahead test (Pre=12.66°±10) indicated a left lasting deviation after the protocol (stimulation effect at Post0=−3.49°; Post1h=−4.80°).
Combining left neck vibration to arm movements has shown allocentric and egocentric improvements lasting for at least 1hour, and our data in progress even suggest during 24hours. Non-invasive and simple to use, these promising findings for the rehabilitation of spatial cognition disorders argue in favor of the ecological use of the vibratory tool during the rehabilitation sessions. |
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| ISSN: | 1877-0657 1877-0665 |
| DOI: | 10.1016/j.rehab.2017.07.025 |