Péréon Yann, Nguyen The Tich Sylvie, Fournier Emmanuel, Genet Robert, Guihéneuc Pierre
Laboratoire d'Explorations Fonctionnelles, Hôtel-Dieu, University Hospital, 44093 Nantes cedex, France.
Neurophysiol Clin. 2004 Oct;34(3-4):131-9. doi: 10.1016/j.neucli.2004.04.005.
Latency measurement of myoelectric deep tendon (T) reflex responses is not usually performed in EMG laboratories. We investigated the optimal conditions of reliable recording of T reflex in children and adults.
Two hundred and sixty-eight normal subjects (139 males, 129 females, age rank 2 days-80 years) were studied. T reflexes were recorded from soleus and rectus femoris muscles (children and adults) and from triceps brachialis, biceps brachialis and flexor carpi radialis (adults). Specially devised hammers were used. They were fitted with a spring switch system in order to trigger the trace display on the EMG machine. Distinct technical options for the synchronisation delay assessment were tested. The nerve conduction velocities along reflex pathways were computed by referring the T wave latencies to subject's height.
Reliable recordings could be obtained in all cases, with a strong linear correlation of the response latency with height. T reflex conduction velocities increased as the log value of subject age. Normative data from birth to 80 years are provided.
T reflex recording represents a painless and easily performed technique. It may be helpful for the assessment of proximal conduction velocities, especially in children during maturation of the peripheral nervous system.
肌电图实验室通常不进行肌电深层肌腱（T）反射反应的潜伏期测量。我们研究了在儿童和成人中可靠记录T反射的最佳条件。
对268名正常受试者（139名男性，129名女性，年龄范围为2天至80岁）进行了研究。从比目鱼肌和股直肌（儿童和成人）以及肱三头肌、肱二头肌和桡侧腕屈肌（成人）记录T反射。使用了专门设计的锤子。它们配备了弹簧开关系统，以便触发肌电图仪上的轨迹显示。测试了同步延迟评估的不同技术选项。通过将T波潜伏期与受试者身高相关联来计算沿反射通路的神经传导速度。
在所有情况下都能获得可靠的记录，反应潜伏期与身高呈强线性相关。T反射传导速度随着受试者年龄的对数值增加。提供了从出生到80岁的标准数据。
T反射记录是一种无痛且易于执行的技术。它可能有助于评估近端传导速度，特别是在儿童外周神经系统成熟期间。
