Effects of initial handling and training on autonomic nervous function in young Thoroughbreds
Effects of initial handling and training on autonomic nervous function in young Thoroughbreds
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DOI：
10.2460/ajvr.2002.63.1488
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发表时间：
2002-11-01
影响因子：
1
通讯作者：
Tsubone, H
中科院分区：
文献类型：
--
作者：
Ohmura, H;Hiraga, A;Tsubone, H
确定初始处理和训练对年轻纯种马自主神经功能的影响。动物-63匹健康纯种马。程序-所有马在一年的9月接受处理和初始骑乘训练，然后通过常规训练方案训练至次年4月。为了获得心率（HR），在初始处理和训练前以及训练7个月后，在马厩中记录心电图;然后根据低频（LF; 0.01至0.07 Hz）功率和高频（NF; 0.07至0.6 Hz）功率的功率谱评估HR的变化，作为自主神经活动的指标。为了评估健身，V-200（速度在200心跳/分钟的HR），这是反映的有氧能力的马，measured.Results-Mean（SE）静息心率显着下降，从41.5 +/- 0.8至38.7 +/- 0.4心跳/分钟以下7个月的训练。马的低频功率从一岁9月的1，037 +/- 128毫秒（2）显著增加到次年4月的2，944 +/- 223毫秒（2）。同样，在相应时间点，HF功率从326 +/- 30毫秒（2）显著增加至576 +/- 39毫秒（2）。的V-200增加显着以下training.Conclusions和临床相关性LF和HF功率的增加表明，副交感神经活动增加在马7个月的训练。静息心率的降低可能依赖于训练诱导的纯种马副交感神经活动的增加。
Objective-To determine the effects of initial handling and training on autonomic nervous functions in young Thoroughbreds.Animals-63 healthy Thoroughbreds.Procedure-All horses were trained to be handled and initially ridden in September of the yearling year and then trained until the following April by conventional training regimens. To obtain the heart rate (HR), electrocardiograms were recorded in the stable before initial handling and training and following 7 months of training; variations in HR were then evaluated from the power spectrum in terms of the low frequency (LF; 0.01 to 0.07 Hz) power and high frequency (NF; 0.07 to 0.6 Hz) power as indices of autonomic nervous activity. To evaluate the fitness, the V-200 (velocity at HR of 200 beat/min), which is reflective of the aerobic capacity of the horse, was measured.Results-Mean ( SE) resting HR decreased significantly from 41.5 +/- 0.8 to 38.7 +/- 0.4 beat/min following 7 months of training. The LF power of horses increased significantly from 1,037 +/- 128 milliseconds(2) in September of the yearling year to 2,944 +/- 223 milliseconds(2) in the following April. Similarly, the HF power increased significantly from 326 +/- 30 milliseconds(2) to 576 +/- 39 milliseconds(2) at the corresponding time points. The V-200 increased significantly following training.Conclusions and Clinical Relevance-Increases in LF and HF powers indicate that parasympathetic nervous activity increases in horses by 7 months of training. The decrease in resting HR may be dependent on the training-induced increase of parasympathetic nervous activity in Thoroughbreds.