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Titre : | Evidence of Generalized Muscle Stiffness in the Presence of Latent Trigger Points Within Infraspinatus (2018) |
Auteurs : | Patrick J. Grabowski ; Laura C. Slane ; Darryl G. Thelen |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 99, n° 11, 2018) |
Article en page(s) : | p. 2257-2262 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Échographie ; Rééducation et réadaptation |
Mots-clés: | Rotator Cuff ; Coiffe des rotateurs ; Trigger points ; Points de déclenchement ; Ultrasonography |
Résumé : |
Objective To evaluate stiffness of infraspinatus muscle tissue, both with and without latent trigger points, using ultrasound shear wave elastography (SWE). The primary hypothesis is that muscle with a latent trigger point will demonstrate a discrete region of increased shear wave speed. The secondary hypothesis is that shear wave speed (SWS) in the region with the trigger point will be higher in patients compared with controls, and will be similar between the two groups in the uninvolved regions. Design Casecontrol. Setting Hospitalbased outpatient physical therapy center. Participants Convenience sample (N=18) of patients (6 female, 3 male, mean age=44) (range=31-61y) diagnosed with latent trigger points in infraspinatus and matched controls without trigger points. Main Outcome Measures Shear wave speed (m/s). Results SWS of the latent trigger point (mean=4.09+SD1.4 m/s) did not differ from the adjacent muscle tissue (3.92+1.6 m/s, P>.05), but was elevated compared to corresponding tissue in controls (2.8+0.75 m/s, P=.02). SWS was generally greater in patients uninvolved tissue (3.83+1.6 m/s) when compared to corresponding tissue in controls (2.62+0.2 m/s, P=.05). Conclusion Although discrete regions of increased SWS corresponding to the trigger point were not observed in patients, evidence of generally increased muscle stiffness in infraspinatus was exhibited compared to healthy controls. Further study of additional muscles with SWE is warranted. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999318302454 |