Accelerometer validity and placement for detection of changes in physical activity in dogs under controlled conditions on a treadmill
Accelerometer validity and placement for detection of changes in physical activity in dogs under controlled conditions on a treadmill
复制标题
DOI：
10.1016/j.rvsc.2011.08.005
复制
发表时间：
2012-08-01
影响因子：
2.4
通讯作者：
Trost, Stewart
中科院分区：
文献类型：
--
作者：
Preston, Timothy;Baltzer, Wendy;Trost, Stewart
该研究的目的是确定基于加速度计的运动传感器的最佳位置和附着方法，并验证它们区分在跑步机上运动的健康狗的休息和速度增加的能力。将两个加速度计放置在犬肩胛骨之间的挽具上，一个在袋中，一个直接连接到挽具上。将另外两个加速度计放置（袋装和未袋装）在犬项圈的腹侧。数据记录在1秒的时间段内，狗在跑步机上分阶段移动，每个阶段持续3分钟：（1）休息时，侧卧，（2）跑步机以0%坡度，3 km/h，（3）跑步机以0%坡度，5 km/h，（4）跑步机以0%坡度，7 km/h，（5）跑步机以5%坡度，5 km/h，和（6）跑步机以5%坡度，7 km/h。只有在沿着背中线的袋中具有加速度计的挽具在狗在跑步机上的行走速度增加（5-7 km/h）时产生矢量幅度的统计学显著增加（P < 0.05）。当步行速度从5 km/h增加到7 km/h时，在犬中检测到矢量幅度的统计学显著性增加，但是，当活动强度因步行上升5%而增加时，未检测到矢量幅度的变化。加速度计是一种有效和客观的工具，能够区分和监测狗在运动速度方面的不同活动水平，而不是在上山运动时发生的能量消耗。爱思唯尔有限公司出版
The objective of the research was to determine the optimal location and method of attachment for accelerometer-based motion sensors, and to validate their ability to differentiate rest and increases in speed in healthy dogs moving on a treadmill. Two accelerometers were placed on a harness between the scapulae of dogs with one in a pouch and one directly attached to the harness. Two additional accelerometers were placed (pouched and not pouched) ventrally on the dog's collar. Data were recorded in 1 s epochs with dogs moving in stages lasting 3 min each on a treadmill: (1) at rest, lateral recumbency, (2) treadmill at 0% slope, 3 km/h, (3) treadmill at 0% slope, 5 km/h, (4) treadmill at 0% slope, 7 km/h, (5) treadmill at 5% slope, 5 km/h, and (6) treadmill at 5% slope, 7 km/h. Only the harness with the accelerometer in a pouch along the dorsal midline yielded statistically significant increases (P < 0.05) in vector magnitude as walking speed of the dogs increased (5-7 km/h) while on the treadmill. Statistically significant increases in vector magnitude were detected in the dogs as the walking speed increased from 5 to 7 km/h, however, changes in vector magnitude were not detected when activity intensity was increased as a result of walking up a 5% grade. Accelerometers are a valid and objective tool able to discriminate between and monitor different levels of activity in dogs in terms of speed of movement but not in energy expenditure that occurs with movement up hill. Published by Elsevier Ltd.