Lloyd A R, Hales J P, Gandevia S C
Department of Neurology, Prince Henry Hospital, Sydney, Australia.
J Neurol Neurosurg Psychiatry. 1988 Oct;51(10):1316-22. doi: 10.1136/jnnp.51.10.1316.
A test of muscle strength and "fatiguability" was administered to 20 normal subjects and 20 patients suffering from post-infection fatigue syndrome. Maximal isometric torque for the elbow flexors was measured before, during and after an endurance sequence of 18 maximal static contractions (10 s duration, 10 s rest interval). The maximal isometric strength was not significantly different between the patient and control groups. The relative torque produced at the end of the series of 18 static contractions did not differ significantly between patients and normal subjects. In the patients with post-infection fatigue syndrome there was impairment of the recovery of peak torque at 10 minutes after the endurance sequence (p less than 0.02). The prominent subjective complaint of muscle fatigue in patients with post-infection fatigue syndrome contrasts with the relatively normal behaviour of their muscles during a controlled test of fatigue. The syndrome may include a disordered perception of achieved force and exertion.
对20名正常受试者和20名感染后疲劳综合征患者进行了肌肉力量和“易疲劳性”测试。在进行18次最大静态收缩（持续10秒，休息间隔10秒）的耐力序列之前、期间和之后，测量了肘屈肌的最大等长扭矩。患者组和对照组之间的最大等长力量没有显著差异。在18次静态收缩系列结束时产生的相对扭矩在患者和正常受试者之间没有显著差异。在感染后疲劳综合征患者中，耐力序列后10分钟峰值扭矩的恢复受损（p小于0.02）。感染后疲劳综合征患者明显的主观肌肉疲劳主诉与其在疲劳对照测试期间肌肉相对正常的表现形成对比。该综合征可能包括对所达到的力量和用力的感知紊乱。
