Eloranta E, Norberg H, Nilsson A, Pudas T, Säkkinen H
Department of Physiology, University of Oulu, Finland.
Acta Vet Scand. 2002;43(3):135-44. doi: 10.1186/1751-0147-43-135.
The aim of the study was to test the performance of a silver wire modified version of the coded telemetric heart rate monitor Polar Vantage NV (PVNV) and to measure heart rate (HR) in a group of captive reindeer calves during different behaviour. The technical performance of PVNV HR monitors was tested in cold conditions (-30 degrees C) using a pulse generator and the correlation between generated pulse and PVNV values was high (r=0.9957). The accuracy was tested by comparing the HR obtained with the PVNV monitor with the standard ECG, and the correlation was significant (r=0.9965). Both circadian HR and HR related to behavioural pattern were recorded. A circadian rhythm was observed in the HR in reindeer with a minimum during night and early morning hours and maximum at noon and during the afternoon, the average HR of the reindeer calves studied being 42.5 beats/min in February. The behaviour was recorded by focal individual observations and the data was synchronized with the output of the HR monitors. Running differed from all other behavioural categories in HR. Inter-individual differences were seen expressing individual responses to external and internal stimuli. The silver wire modified Polar Vantage NV provides a suitable and reliable tool for measuring heart rate in reindeer, also in natural conditions.
本研究的目的是测试编码遥测心率监测器极地优势NV（PVNV）的银线改良版的性能，并测量一组圈养驯鹿幼崽在不同行为期间的心率（HR）。使用脉冲发生器在寒冷条件（-30摄氏度）下测试了PVNV心率监测器的技术性能，所产生的脉冲与PVNV值之间的相关性很高（r = 0.9957）。通过将PVNV监测器获得的心率与标准心电图进行比较来测试准确性，相关性显著（r = 0.9965）。记录了昼夜心率以及与行为模式相关的心率。在驯鹿中观察到心率的昼夜节律，在夜间和清晨最低，中午和下午最高，所研究的驯鹿幼崽在2月份的平均心率为42.5次/分钟。通过对个体的重点观察记录行为，并将数据与心率监测器的输出同步。奔跑时的心率与所有其他行为类别不同。观察到个体间差异，表明个体对外部和内部刺激的反应。银线改良的极地优势NV为测量驯鹿在自然条件下的心率提供了一种合适且可靠的工具。
