Svantesson U, Osterberg U, Grimby G, Sunnerhagen K S
Department of Rehabilitation Medicine, Göteborg University, Sweden.
Scand J Rehabil Med. 1998 Jun;30(2):73-80.
The objective was to investigate the fatigue process in the triceps surae during the heel-rise test (eccentric and concentric phases) in comparison with a walking test and muscle strength. Eight men with prior stroke and 8 age-matched healthy men participated. The electromyographic activity in form of root mean square and mean power frequency of the gastrocnemius and soleus muscles were measured and work estimated. Walking speed and maximal peak torque were measured and differed significantly between the patient and reference groups. There were no significant differences between the groups nor legs concerning the number of heel-rises or work performed. In the eccentric phase, mean power frequency decreased significantly more in the gastrocnemius than in the soleus muscle in the reference group, while mean power frequency in the soleus muscle tended to decrease more, though non-significantly, in the affected leg. The conclusion is that the capacity to perform the heel-rise test in patients with prior stroke is better than plantarflexor peak torque and walking speed.
目的是研究在足跟抬起试验（离心和向心阶段）中比目鱼肌的疲劳过程，并与步行试验和肌肉力量进行比较。八名既往有中风病史的男性和八名年龄匹配的健康男性参与了研究。测量了腓肠肌和比目鱼肌的均方根和平均功率频率形式的肌电图活动，并估算了功。测量了步行速度和最大峰值扭矩，患者组和参照组之间存在显著差异。两组之间以及双腿之间在足跟抬起次数或完成的功方面没有显著差异。在离心阶段，参照组中腓肠肌的平均功率频率下降幅度明显大于比目鱼肌，而患侧腿比目鱼肌的平均功率频率虽未显著下降，但有下降更多的趋势。结论是，既往有中风病史的患者进行足跟抬起试验的能力优于跖屈肌峰值扭矩和步行速度。
