...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Neuromuscular manifestations of work-related myalgia in women specific to extensor carpi radialis brevis
【24h】

Neuromuscular manifestations of work-related myalgia in women specific to extensor carpi radialis brevis

机译：对伸肌射线射线射频特异性的女性有关肌痛的神经肌肉表现

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study assessed neuromuscular function in the extensor carpi radialis brevis (ECRB) of female workers diagnosed with work-related myalgia (WRM, n = 14, age 45.2 +/- 1.9 years) and the ECRB of healthy controls (CON, n = 10, age 34.6 +/- 2.5 years). Groups were compared on voluntary and electrically evoked functional responses at rest (Pre), immediately following a 5 min repetitive task (Post-0) performed at 60% maximal voluntary contraction (MVC), and after 5 min of recovery (Post-5). Despite near complete motor unit activation (MUA) (CON 98% +/- 1% vs. WRM 99% +/- 1%), at Pre, WRM produced 26% less (P < 0.05) MVC force than CON. Following an MVC, twitch force was increased (P < 0.05) by 94% +/- 13% and 54% +/- 11% in CON and WRM, respectively (CON vs. WRM; P < 0.05). The peak force and the maximal rates of force development and decline of electrically evoked contractions (10-100 Hz) were generally depressed (P < 0.05) at Post-0 and Post-5 relative to Pre. The response pattern to increasing frequencies of stimulation was not different (P > 0.05) between groups and MUA was not impaired (CON 97% +/- 1% vs. WRM 97% +/- 1%; P > 0.05). In conclusion, the peripheral weakness observed in the ECRB in WRM at rest does not result in abnormal fatigue or recovery responses after performing a task controlled for relative demand (60% MVC).
机译：本研究评估了临时Carpi Radialis Brevis（ECRB）的神经肌肉功能，诊断出与工作相关的肌痛（WRM，N = 14岁，年龄45.2 +/-1-1-1-1-1.9岁）和健康对照的ECRB（CON，N = 10 ，年龄34.6 +/- 2.5岁）。在休息（前）的自愿和电诱发功能反应上进行比较组，紧接在5分钟的重复的任务（Post-0）以60％的最大自愿收缩（MVC）之后，并在恢复5分钟后（5分钟） 。尽管接近完整的电机单元激活（MUA）（MUA）（CON 98％+/- 1％与WRM 99％+/- 1％），WRM生产比CON的26％（P <0.05）MVC力。在MVC之后，分别增加（P <0.05），分别增加（P <0.05）94％+/-13％和54％+/- 11％（CON与WRM; P <0.05）。峰值力和力发育的最大速度和电诱发收缩（10-100Hz）的下降通常在后0和后5次相对于前抑制（P <0.05）。增加刺激频率的响应模式并不不同（p> 0.05），组和MUA不会受到损害（CON 97％+/- 1％与WRM 97％+/- 1％; p> 0.05）。总之，在休息时的REM中观察到的外周弱度不会导致对相对需求的任务（60％MVC）进行控制后的疲劳或恢复反应异常。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号