Karimjee Kamila, Harron Rachel C M, Piercy Richard J, Daley Monica A
Comparative Neuromuscular Diseases Laboratory, Department of Clinical Science and Services, Royal Veterinary College, London NW1 0TU, UK.
Structure and Motion Laboratory, Department of Comparative Biological Sciences, Royal Veterinary College, Hawkshead Lane, Hatfield AL9 7TA, UK.
R Soc Open Sci. 2024 Jul 17;11(7):240119. doi: 10.1098/rsos.240119. eCollection 2024 Jul.
Objective assessment of activity via accelerometry can provide valuable insights into dog health and welfare. Common activity metrics involve using acceleration cut-points to group data into intensity categories and reporting the time spent in each category. Lack of consistency and transparency in cut-point derivation makes it difficult to compare findings between studies. We present an alternative metric for use in dogs: the acceleration threshold (as a fraction of standard gravity, 1 g = 9.81 m/s) above which the animal's X most active minutes are accumulated (MX) over a 24-hour period. We report M2 M30 and M60 data from a colony of healthy beagles ( = 6) aged 3-13 months. To ensure that reference values are applicable across a wider dog population, we incorporated labelled data from beagles and volunteer pet dogs ( = 16) of a variety of ages and breeds. The dogs' normal activity patterns were recorded at 200 Hz for 24 hours using collar-based Axivity-AX3 accelerometers. We calculated acceleration vector magnitude and MX metrics. Using labelled data from both beagles and pet dogs, we characterize the range of acceleration outputs exhibited enabling meaningful interpretation of MX. These metrics will help standardize measurement of canine activity and serve as outcome measures for veterinary and translational research.
通过加速度计对活动进行客观评估可为犬类健康和福利提供有价值的见解。常见的活动指标包括使用加速度切点将数据分组到强度类别中，并报告在每个类别中花费的时间。切点推导缺乏一致性和透明度使得难以比较不同研究的结果。我们提出了一种用于犬类的替代指标：加速度阈值（以标准重力的分数表示，1g = 9.81m/s），超过该阈值，动物在24小时内累积其最活跃的X分钟（MX）。我们报告了来自6只3至13个月大的健康比格犬群体的M2、M30和M60数据。为确保参考值适用于更广泛的犬类群体，我们纳入了来自不同年龄和品种的比格犬以及志愿者宠物犬（共16只）的标记数据。使用基于项圈的Axivity - AX3加速度计，以200Hz的频率记录犬类24小时的正常活动模式。我们计算了加速度矢量大小和MX指标。利用来自比格犬和宠物犬的标记数据，我们对所展示的加速度输出范围进行了表征，从而能够对MX进行有意义的解释。这些指标将有助于规范犬类活动的测量，并作为兽医和转化研究的结果指标。
