Evaluation of a digitally integrated accelerometer-based activity monitor for the measurement of activity in cats1
Evaluation of a digitally integrated accelerometer-based activity monitor for the measurement of activity in cats1
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DOI：
10.1111/j.1467-2995.2007.00367.x
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发表时间：
2008-03-01
影响因子：
1.7
通讯作者：
Smith, Eric S.
中科院分区：
文献类型：
--
作者：
Lascelles, B. Duncan X.;Hansen, Bernard D.;Smith, Eric S.
目的 评估基于加速度计的活动监测器生成的数据与猫移动距离之间的相关性。研究设计 前瞻性实验研究。动物 三只、四岁、雄性、专门饲养的研究猫，体重在 5.1 至 5.9 公斤之间。方法第一部分：对三只猫评估项圈和背带安装的加速度计，将同时收集的加速度计数据与计算机分析视频的运动数据进行比较。第二部分：猫佩戴项圈和安全带安装加速度计，记录数据 4 周，以评估每日和每周的活动变化。结果第一部分：收集了 432 小时的同步视频和加速度计数据。加速度计计数与移动距离之间的相关性总体为 0.82。项圈和安全带安装的加速度计之间的一致性非常好，只有 6% 的测量差异位于平均差 +/- 2 标准差之外。线束加速计输出和 6% 机动性的调整后的 R-2 为 0.75；对于运动0.84；平均速度为 0.83。对视频的评估表明，进食、梳理毛发和抓挠会产生较高的加速计计数，但对运动影响很小。第二部分：白天对背带 (p < 0.001) 和项圈 (p < 0.002) 计数有显着影响，周末计数最低。一周对安全带安装的加速计计数有显着影响 (p < 0.034)，但对项圈安装的加速计计数没有影响。安全带加速计计数在第 1 周最低。结论 如果分析软件中的移动阈值 >= 6%，基于加速度的数字集成加速计的输出与自由移动的猫的移动距离和移动能力密切相关。临床相关性基于加速度的活动监测器可以客观测量骨关节炎等病症镇痛治疗后移动能力的改善情况。
Objective To assess the correlation between data generated by an accelerometer-based activity monitor and the distance moved in cats.Study design Prospective experimental study.Animals Three, four-year-old, male, purpose-bred research cats, weighing between 5.1 and 5.9 kg.Methods Part I: Collar and harness mounted accelerometers were evaluated in three cats, comparing simultaneously collected accelerometer data with movement data from computer-analyzed video. Part II: Cats wore collar and harness mounted accelerometers, and data were recorded for 4 weeks to evaluate day-to-day and week-to-week variation in activity.Results Part I: 432 hours of simultaneous video and accelerometer data were collected. The correlation between accelerometer counts and distance moved was 0.82 overall. Agreement between collar and harness mounted accelerometers was excellent with only 6% of the differences in measurements lying outside the mean difference +/- 2 standard deviations. The adjusted R-2 for harness accelerometer output and 6% mobility was 0.75; for movement 0.84; and for mean velocity 0.83. Evaluation of video indicated eating, grooming and scratching created high accelerometer counts with little effect on movement. Part II: There was a significant effect of day on harness (p < 0.001) and collar (p < 0.002) counts, with counts being lowest at the weekend. There was a significant effect of week on harness-mounted accelerometer counts (p < 0.034), but not on collar-mounted accelerometer counts. Harness accelerometer counts were lowest in week 1.Conclusion Output from an acceleration-based digitally integrated accelerometer correlated well with distance moved and mobility in freely moving cats provided the mobility threshold in the analysis software was >= 6%.Clinical relevance Acceleration-based activity monitors may allow for objective measurement of improved mobility following analgesic treatment for conditions such as osteoarthritis.