冷应激鹌鹑部分生理指标和血清酶活性的变化

为了研究冷应激对鹌鹑生理指标的影响,试验采用在自由活动和自由饮水条件下,使北京白羽鹌鹑处于急性和慢性冷应激状态,然后测定其在冷应激前后不同时间点的呼吸频率、心率和体温,以及血清中丙氨酸氨基转移酶(ALT)、γ-谷氨酸氨基转移酶(γ-GT)、肌酸激酶(CK)、乳酸脱氢酶(LDH-L)、碱性磷酸酶(ALP)和胆碱脂酶(CH...     

不同月龄的藏绵羊生理生化指标研究

为了研究高原地区不同月龄的藏绵羊生理生化指标的变化规律,试验以饲养于四川省红原县的藏绵羊为研究对象,按生长发育阶段测定其生理生化指标。结果表明:3~24月龄的藏绵羊呼吸、体温和心率的范围分别为(24.60±6.33)~(50.30±21.18)次/min、(39.14±0.28)~(39.61±0.35)℃和(91.00±13.27)~(109.10±6.82)次/min;藏绵羊3,6,15,18月龄白细胞计数(WBC)、血细胞比容(HCT)和红细胞体积分布宽度变异系数(RDW-CV)等指标相对低于9,12,21,24月龄,3,6,15,18月龄红细胞计数(RBC)、平均红细胞体积(MCV)、平均红细胞血红蛋白浓度(MCHC)、平均红细胞血红蛋白含量(MCH)等指标相对高于9,12,21,24月龄,血红蛋白含量(HGB)和血小板计数(PLT)两指标不呈现月龄变化;谷丙转氨酶(ALT)、白蛋白(ALB)、球蛋白(GLO)和总胆固醇(CHOL)等指标在21月龄时达到最大值,碱性磷酸酶(ALKP)、乳酸脱氢酶(LDH)、血糖(GLU)、胆碱酯酶(PCHE)等指标在3月龄时达到最大值,总钙(CA)、总蛋白(TP)、谷草转氨酶(AST)等指标分别在9,18,24月龄时达到最大值。     

浅谈心率变异度

心率变异度(HRV)是评估交感和副交感神经系统的电生理检查,目前已广泛应用于临床各领域,皮肤交感反应(SSR)联合R-R间期变化率(RRIV)在检测自主神经功能方面与HRV比较,寻找反映自主神经系统功能的最佳的检测手段。     

中药疗法治奶牛自汗症

奶牛自汗症又称盗汗症,一种是老龄、犊牛、瘦弱及产后的母牛多发;另一种是膘情良好的奶牛,季节变换、气候多变时发病。患牛得病后脊、腰、双肋大量出汗,心率加快,呼吸急迫。有的体温偏高、流清涕、鼻鸣、头低耳耷、行走如酒醉、不喜饮水。如不及时治疗,奶牛容易发生生命危险。中药疗法有:一、如因患牛产后虚弱、体瘦而发病,可以应用补气健脾、固表止汗的方剂:太子参50克、黄芪100克、白术60克、防     

The Effect of Training on Yili Horse 1 600 m Test Results and Heart Rate Variability

【Objective】 The objective of this study was to analyze the effect of different training stages on the performance and heart rate variability(HRV) of Yili horses and to provide data for reference in the conditioning training of 1 600 m distance Yili horses.【Method】 Eight 3-year-old Yili horses (stallions) were selected as test subjects.A 3-month speed specific performance training program was conducted, and a speed test race was organized in the last week of each month of training, and HRV was collected before, immediately after, 0.5 h after, and 1 h after 1 600 m test race.Among them, the time-domain indexes included the mean of all R-R intervals (Mean RR), the standard deviation of all R-R intervals (SDNN), the mean heart rate (Mean HR), the root mean square of the difference between adjacent R-R intervals (RMSSD), the number of adjacent R-R intervals with a difference greater than 50 ms (NN50), and the percentage of adjacent R-R intervals with a difference greater than 50 ms to the total number of heartbeats (pNN50).Frequency domain metrics included very low frequency (VLF), low frequency power (LF), high frequency power (HF) and nonlinear metrics:standard deviation (Y) of all R-R-spacing (SD1), standard deviation (X) of all R-R-spacing (SD2).Consequently, the variability of HRV indexes in horses at different training stages was analyzed.【Result】 The race time in the post training period in 1 600 m speed test race of Yili horses was significantly lower than that in the early training period (P<0.05), and Mean RR, NN50 and pNN50 in the middle and post training periods were significantly lower than that in the early training period (P<0.05).Mean HR in the beginning of training was significantly lower than that in post training (P<0.05).VLF and LF in the end of training were significantly lower than that in the beginning of training (P<0.05).【Conclusion】 Under the conditions of this test, the HRV indexes of 1 600 m test race of Yili horses in different conditioning training stages were analyzed.The outcomes demonstrated that the types of neural activity in Yili horses at the beginning, middle and end of training presented some differences, showing changes of increased sympathetic excitability and decreased parasympathetic excitability, and the horses' athletic performance improved.Therefore, HRV could be considered as an effective tool to evaluate the training load and intensity of Yili horses during training.     

99例高血压患者心率变异性分析

目的：为了解高血压虱的自主神经功能损害程度。方法；以动态心电图中的ＨＲ，ＳＤＮＮ，ＳＤＮＮ，Ｉｎｄｅｘ，ＳＤＡＮＮ，ＲＭＳＳＤ，ＰＮＮ５０等６项时域指标对９９例高血压患者和８３例正常人的２４ｈ心率变异性进行对比分析。结果：高血压病患者２４ｈ时域指标明显低于正常人，且高血压性心脏病心功能Ⅲ－Ⅳ级者明显低于心功能Ⅰ－Ⅱ级者，平均心率明显增快。     

遥控式心率监护仪的设计

心血管疾病是威胁人类生命的最主要疾病之一，实时准确地显示心率对心血管疾病的诊断和监护都具有十分重要的意义。目前，各医院使用的监护仪价格昂贵，难以在工薪家庭中推广使用，本文设计了一种遥控式心率监护仪，其结构简单，成本低廉，性能良好，适合于家庭，医院及救...     

耕牛蛇毒中毒的诊断及治疗

一、症状.全身症状多在被毒蛇咬伤后1～5小时内出现.咬伤处迅速红肿,或滴血,血液不凝固.出现严重的全身症状:病牛烦躁不安,心跳加快,心率不整,呼吸急促,瞳孔散大;严重者四肢发抖或全身痉挛,昏迷倒地.最后因呼吸和心跳中枢麻痹而死.     

生理负荷对人体平衡的影响

该文研究了人体全身性生理负荷(用心率作为评价指标)对人体平衡功能的影响.通过实验得知劳动生理负荷水平对人体平衡功能影响非常显著;人体动摇总轨迹长、左右动摇总轨迹长、前后动摇总轨迹长、动摇速度与心率之间存在很好的线性相关关系,并导出了相关的回归模型.人体生理负荷对人体前后动摇的影响明显大于对左右动摇的影响.人体动摇程度随着劳动生理负荷水平的增加而增加,减少劳动生理负荷对于减少作业事故的潜在危险性具有重要意义.     

木工宽带砂光机噪声对人体心率的影响

该文从噪声对人体心率影响的角度 ,分析了木工宽带砂光机 (BSG2 713)的现场噪声及其主要频率的单频噪声对工人生理及心理负荷的影响 .该研究采用的方法是 :以正常工作状况下 ,砂光机的噪声为噪声分析源 ,并提取有代表性的实验噪声 ,在安静及噪声暴露的条件下进行人体心率影响实验 ,最后通过噪声对人体心率的影响情况 ,分析砂光机噪声对人体负荷的影响 .该方法与传统噪声评价方法相比 ,强调了影响劳动安全的人体心理负荷问题 ,从生理学和心理学角度来探讨噪声的影响 .结果表明 :在噪声暴露过程中 ,6 7Hz的噪声对人体心理负荷影响最大 ;而 14 2 2Hz的噪声对人体心理影响波动最大 ,且噪声暴露停止后影响仍持续增加 .