...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Biomechanics >Fetlock joint kinematics differ with age in thoroughbred racehorses
【24h】

Fetlock joint kinematics differ with age in thoroughbred racehorses

机译：在纯种赛马中，Fetlock关节运动学因年龄而异

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

Fetlock joint kinematics during galloping in 2-, 3-, 4-, and 5-year-old Thoroughbreds in race training were quantified to determine if differences due to age could account for the observation that 2-year old Thoroughbred racehorses incur a high number of injuries to the bones and soft tissues in the distal forelimbs during training and at the outset of racing. Twelve Thoroughbred racehorses were videotaped in the sagittal plane at 250 frames/s during their daily galloping workout on a 7/8 mile sand-surface training track. Four galloping strides were recorded for each horse and subsequently digitized to determine fetlock joint angles of the leading forelimb during the limb support period of a stride. Four kinematic variables were measured from each stride's angular profile: angle of fetlock joint dorsi-flexion at mid-stance, negative angular velocity, positive angular velocity and time from hoof impact to mid-stance phase of limb Support. The 2-year old Thoroughbreds had significantly quicker rates of dorsi-flexion of their fetlock joints than 3- (p = 0.0 1), 4- (p = 0.0 1), and 5-year old (p < 0.0 1) Thoroughbreds following impact of the leading forelimb during moderate galloping (ava. 14 m/s). Higher rates of dorsi-flexion in young Thoroughbreds may reflect immaturity (lack of stiffness) of the suspensory apparatus tissues. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 39]
机译：对2岁，3岁，4岁和5岁的纯种马在奔跑过程中的奔腾关节运动学进行了量化，以确定是否由于年龄的差异可以解释2岁的纯种马引起大量的观察结果训练期间和比赛开始时对前肢远端骨骼和软组织的伤害。十二头纯种赛马在7/8英里沙面训练赛道上进行每日疾驰训练时，以250帧/秒的速度在矢状平面上拍摄。为每匹马记录四次奔腾的步幅，然后将其数字化，以确定在迈步的肢体支撑期间前肢前肢的关节角度。从每个步幅的角度分布中测量了四个运动学变量：中位时的节肢关节背屈角度，负角速度，正角速度以及从蹄部撞击到肢体支撑中位阶段的时间。 2岁的纯种马其股指关节背屈的速度明显快于3-岁（p = 0.0 1），4-岁（p = 0.0 1）和5岁（p <0.0 1）前肢在中等舞动（14 m / s）时的冲击力。年轻的纯种马背屈率较高可能反映了悬吊器具组织的不成熟（缺乏刚度）。 （C）2002 Elsevier ScienceLtd。保留所有权利。 [参考：39]

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