Gait analysis in myotonic dystrophy type 1 : spatiotemporal and kinematics parameters / Estudo da marcha da distrofia miotonica tipo 1 : parametros espaciais, temporais e cinematica

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Myotonic Dystrophy type 1 is a multisystemic disease that frequently affects the striated muscle with repercussion on gait. Gait function may be very abnormal or exhibit subtle alterations of difficult characterization by the human eyes. With objective to analyse the spatiotemporal and kinematics variables parameters of gait in patients affected by the disease, a prospective study of type case (n = 10) and controls (n = 20) was designed. The subjects were investigated in relation to clinical aspects of gait and submitted to the muscular force test. Reflexive markers were affixed in the upper and lower extremities, trunk and pelvis. A barefooted gait was performed in a 6-meter runway and captured by 6 ProReflex cameras. Three samples of each patient were collected and analyzed by the Qualisys® System. The Exact Test of Fisher and the Mann-Whitney Test were used for comparison of demographic variables between the groups and a descriptive statistic for cases. Abnormalities were found in all 10 patients, although 4 had no clinical evidence of gait problems. Stride was diminished in 80% of the cases, cadence in 30% and slow speed in 40%. Gait dysfunction was observed in 100% of the patients? hips, 90% of pelvis and 70% of ankles. The laboratory examination of gait allows early detection of alterations, even before the appearance of muscular deficit by manual force opposition test as occurred in two cases. Gait dysfunction observed in the laboratory was associated with distal muscular weakness in 40% of the patients and in association with proximal and distal deficits in others 40%

ASSUNTO(S)

transtornos neurologicos da marcha gait disorders neurologic

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