Burdett R G, Borello-France D, Blatchly C, Potter C
Program in Physical Therapy, University of Pittsburgh, PA 15261.
Phys Ther. 1988 Aug;68(8):1197-203.
The effects of the Air-Stirrup (AS) standard ankle brace on the gait of 19 subjects with hemiplegia resulting from a cerebrovascular accident who exhibited excessive subtalar joint motion were studied. Videotaped trials and footprint analyses were used to measure subjects' hip, knee, and ankle sagittal plane angles; inversion and eversion of the calcaneus; and time-distance gait characteristics. A one-way analysis of variance for repeated measures was used to compare the gait of 19 subjects with the AS brace and unbraced and 11 subjects with the AS brace, unbraced, and with an ankle-foot orthosis. The AS brace was associated with more calcaneal stability during standing than the unbraced condition. The ankle-foot orthosis was associated with less plantar flexion at foot-strike than either the AS brace or unbraced condition. Both the AS brace and the ankle-foot orthosis were associated with less mid-swing plantar flexion and increased step length on the paretic side compared with no brace. These results support the effectiveness of the AS brace in controlling inversion and eversion instability in patients with hemiplegia.
研究了空气马镫（AS）标准踝关节支具对19名因脑血管意外导致偏瘫且距下关节运动过度的受试者步态的影响。采用录像试验和足迹分析来测量受试者的髋、膝和踝关节矢状面角度；跟骨的内翻和外翻；以及时间-距离步态特征。使用重复测量的单因素方差分析来比较19名佩戴AS支具和不佩戴支具的受试者以及11名佩戴AS支具、不佩戴支具和佩戴踝足矫形器的受试者的步态。与不佩戴支具的情况相比，AS支具在站立时与更高的跟骨稳定性相关。与AS支具或不佩戴支具的情况相比，踝足矫形器在足跟着地时与更少的跖屈相关。与不佩戴支具相比，AS支具和踝足矫形器均与更少的摆动中期跖屈以及患侧步长增加相关。这些结果支持了AS支具在控制偏瘫患者内翻和外翻不稳定方面的有效性。
