Hip morphology and average muscle contraction when standing in cerebral palsy

Revista Cubana de Ortopedia y Traumatología

Martínez-Porcel, Roberto¹  Alí-Morell, Osama Jesús¹  Zurita-Ortega, Félix²  González-Astorga, Elena¹ 

[1] Fundación Purísima Concepción, Granad, España;Universidad de Granada, Granada, España

关键词: cerebral palsy;    hip;    hypertonia;    adductors;    abductors;    surface electromyogram;   

DOI  :  

学科分类：生理学

来源: SciELO

【 摘 要 】

Introduction:the hip joint is one of the most affected joint in cerebral palsy and its alterations are one of the most important complications. Although its development is related to muscle tone disorder and imbalance between abductor and adductor groups, there are no objective data that allow us to quantify the exact proportion between contractions of both muscle groups from which this joint is at risk.Objective: show, in a population with cerebral palsy, the mean of contraction percentage of hip abductors (µ % Abd) and adductors (µ % Add) groups when standing and compare it with the different degrees of alteration of this joint.Methods: muscle activity of the abductors and adductors groups when standing was measured in 19 hips of 10 subjects with cerebral palsy using a surface electromyography. Results were expressed in percentage regarding the maximum isometric contraction previously obtained in the same muscle groups. Hips were assessed using radiological studies.Results: the mean percentage of contraction of the adductor group exceeds the adductor group in subluxated and luxated hips. In these case studies, a significant association when comparing individual results with the overall mean for our population is not achieved.Conclusions:although the adductor group is an important step in the development of hip pathology factor, it is not useful as an indicator of this joint stage, even using population means suffering neurological disorders.

【 授权许可】

CC BY-NC