دورية أكاديمية
The Contribution of Decreased Muscle Size to Muscle Weakness in Children With Spastic Cerebral Palsy
| العنوان: | The Contribution of Decreased Muscle Size to Muscle Weakness in Children With Spastic Cerebral Palsy |
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| المؤلفون: | Britta Hanssen, Nicky Peeters, Ines Vandekerckhove, Nathalie De Beukelaer, Lynn Bar-On, Guy Molenaers, Anja Van Campenhout, Marc Degelaen, Christine Van den Broeck, Patrick Calders, Kaat Desloovere |
| المصدر: | Frontiers in Neurology, Vol 12 (2021) |
| بيانات النشر: | Frontiers Media S.A. |
| سنة النشر: | 2021 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | cerebral palsy, muscle weakness, muscle size, ultrasound, muscle volume, selective motor control, Neurology. Diseases of the nervous system, RC346-429 |
| الوصف: | Muscle weakness is a common clinical symptom in children with spastic cerebral palsy (SCP). It is caused by impaired neural ability and altered intrinsic capacity of the muscles. To define the contribution of decreased muscle size to muscle weakness, two cohorts were recruited in this cross-sectional investigation: 53 children with SCP [median age, 8.2 (IQR, 4.1) years, 19/34 uni/bilateral] and 31 children with a typical development (TD) [median age, 9.7 (IQR, 2.9) years]. Muscle volume (MV) and muscle belly length for m. rectus femoris, semitendinosus, gastrocnemius medialis, and tibialis anterior were defined from three-dimensional freehand ultrasound acquisitions. A fixed dynamometer was used to assess maximal voluntary isometric contractions for knee extension, knee flexion, plantar flexion, and dorsiflexion from which maximal joint torque (MJT) was calculated. Selective motor control (SMC) was assessed on a 5-point scale for the children with SCP. First, the anthropometrics, strength, and muscle size parameters were compared between the cohorts. Significant differences for all muscle size and strength parameters were found (p ≤ 0.003), except for joint torque per MV for the plantar flexors. Secondly, the associations of anthropometrics, muscle size, gross motor function classification system (GMFCS) level, and SMC with MJT were investigated using univariate and stepwise multiple linear regressions. The associations of MJT with growth-related parameters like age, weight, and height appeared strongest in the TD cohort, whereas for the SCP cohort, these associations were accompanied by associations with SMC and GMFCS. The stepwise regression models resulted in ranges of explained variance in MJT from 29.3 to 66.3% in the TD cohort and from 16.8 to 60.1% in the SCP cohort. Finally, the MJT deficit observed in the SCP cohort was further investigated using the TD regression equations to estimate norm MJT based on height and potential MJT based on MV. From the total MJT deficit, 22.6–57.3% could be explained by ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1664-2295 |
| العلاقة: | https://www.frontiersin.org/articles/10.3389/fneur.2021.692582/fullTest; https://doaj.org/toc/1664-2295Test; https://doaj.org/article/426835bd8d114562b7895ae0f3a620faTest |
| DOI: | 10.3389/fneur.2021.692582 |
| الإتاحة: | https://doi.org/10.3389/fneur.2021.692582Test https://doaj.org/article/426835bd8d114562b7895ae0f3a620faTest |
| رقم الانضمام: | edsbas.59ADFC9F |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 16642295 |
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| DOI: | 10.3389/fneur.2021.692582 |