评估与小狗生长相关的心率变量的变化,使用阶段纠正信号平均 (PRSA) 和非高斯度指数
Rio Hayashi1, Mizuki Hasegawa1, Akari Hatanaka1
1Veterinary Teaching Hospital, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.
Animals : an open access journal from MDPI
|December 11, 2025
概括
这项研究表明,非线性心率变化 (HRV) 指数,如加速能力 (AC),可以跟踪自主神经系统 (ANS) 成熟在成长中的小狗. 这些新方法可以更好地了解随着年龄的增长对同情和副同情活动的变化.
科学领域:
- 兽医心脏病学 兽医心脏病学
- 自主神经系统生理学 自主神经系统生理学
- 生物学中的非线性动力学
背景情况:
- 心率变化 (HRV) 传统上评估自主神经系统 (ANS) 活动.
- 传统的HRV指数在一致解释交感神经系统 (SNS) 活动方面存在挑战.
- 非线性HRV指数,包括加速能力 (AC),减速能力 (DC) 和非高斯度指数,提供了对同情和副同情活动的独特评估的潜力.
研究的目的:
- 为了研究非线性HRV指数 (AC,DC,非高斯度) 在狗中的适用性.
- 使用这些非线性指数,纵向评估幼犬发育期间与年龄相关的ANS功能变化.
- 为年轻狗的自主成熟提供新的见解.
主要方法:
- 长度研究涉及8只4至12个月龄的健康小狗,每两个月进行一次测量.
- 睡眠期间的48小时霍尔特心电图记录用于HRV分析.
- 应用时间域 (SDNN,RMSSD),频域 (nHF,LF/HF),几何 (SD1,SD2,SD1/SD2) 和非线性 (AC,DC,非高斯) HRV分析.
主要成果:
- 随着年龄的增长,副交感指标 (RMSSD,SD1) 和整体HRV指数 (SDNN,SD2) 显著增加.
- 同情指标AC随着小狗的年龄显著下降.
- 没有观察到nHF,LF/HF,SD1/SD2,DC或非高斯度指数的显著变化,这表明它们在这个年龄段的稳定性.
结论:
- 幼犬在成长过程中表现出从同情的转变为偏交的优势,正如HRV变化所示.
- 在狗的发育过程中,AC显示出作为交感活动可靠标记物的潜力.
- DC和非高斯度指数可以提供年龄独立的年轻狗的ANS功能评估.
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