Gait characteristics of Duchenne muscular dystrophy children at normal speeds

doi:10.3969/j.issn.2095-4344.2013.20.022

Abstract

Abstract:

BACKGROUND: Few studies have been conducted on abnormal gaits in Duchenne muscular dystrophy children, and planar pressure distribution characteristics during walking have not been reported for Duchenne muscular dystrophy children.
OBJECTIVE: To investigate the abnormal gait characteristics in Duchenne muscular dystrophy children.
METHODS: Ten Duchenne muscular dystrophy children and ten age-matched normal children were recruited to participate in this study. The participants performed five trials of walking at self-selected speed, gait kinematics and foot pressure data were collected with VICON motion capture system and Medilogic system simultaneously.
RESULTS AND CONCLUSION: The results showed Duchenne muscular dystrophy children had significantly shorter step length, greater step width and maximum coronal center-of-gravity displacement compared to normal children. Duchenne muscular dystrophy children took longer double support phases and shorter terminal swing phase, and demonstrated less hip maximum extension and greater hip maximum flexion, greater knee flexion in swing phase and great ankle plantar flexion at initial contact compared to normal children. Duchenne muscular dystrophy children had less maximum foot pressure and more anterior and lateral deviation of maximum pressure location. The gait phase proportions were effective on gait assessment for Duchenne muscular dystrophy children. The pathological gait in Duchenne muscular dystrophy children may result from the weakness of extremity extensor and the secondary clubfoot in some Duchenne muscular dystrophy individuals.

Key words: tissue construction, tissue construction clinical practice, Duchenne muscular dystrophy, gait, percentage of cycle time, plantar pressure distribution, swing phase, knee flexion angle, plantar flexion angle, hip, knee, ankle, provincial grants-supported paper

CLC Number:

R318

Chen Nan, Du Qing, Liu Xiao-qing, Li Xi-hua, Wu Xie, Zhou Xuan, Zhang Shu-xin. Gait characteristics of Duchenne muscular dystrophy children at normal speeds [J]. Chinese Journal of Tissue Engineering Research, 2013, 17(20): 3770-3776.

Figures/Tables 4

References

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