Electrointestinography, ultrasonographic contractility, and borborygmi of the cecum and colon are not altered by a single episode of hand walking exercise in healthy horses.

IF 1.6 2区 农林科学 Q2 VETERINARY SCIENCES Javma-journal of The American Veterinary Medical Association Pub Date : 2024-11-06 DOI:10.2460/javma.24.07.0486
Amelia S Munsterman, Jessica M Rogers-Tirado, Jack Kottwitz
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Abstract

Objective: To evaluate the effect of hand walking exercise on myoelectrical activity and contractility in normal, healthy horses.

Methods: Prospective experimental design. A convenience sample of 8 horses were randomized to a control or hand walking treatment group; each horse underwent both treatments. After a 30-minute baseline electrointestinography (EIG), horses were stall rested or hand walked for 15 minutes. Electrointestinography was repeated immediately and at 2 hours. Ultrasonography and auscultation monitored cecal and left ventral colon (LVC) contractions during EIG. Electrointestinography spectral analysis obtained dominant frequency (DF), dominant power (DP), total power (TP) frequency distribution, and changes in slow-wave rhythmic activity.

Results: The median (IQR) DF in cycles per minute (cpm) was higher for the cecum (2.067 cpm; IQR, 0.633 cpm) compared to the LVC (2.0 cpm; IQR, 0.396 cpm) but was unchanged by either treatment. Cecal DP (0.0086 mV; IQR, 0.0070 mV) was higher than LVC DP (0.0068 mV; IQR, 0.0051 mV) in the hand walking group, but DP and TP were unaffected by either treatment over time. Borborygmi at all time points were unchanged in both treatment groups. Ultrasonographic contractions were similar across time in both treatment groups and correlated with borborygmi (ρ = 0.63). Dominant power did not correlate with contractions or borborygmi (P > .2081).

Conclusions: Brief hand walking as a single strategy to increase gastrointestinal motility did not affect contractility or EIG in normal horses.

Clinical relevance: Fasting and stall rest may not represent the spectrum of severity of gastrointestinal stasis observed in clinical cases. This model is directly applicable to horses fasted prior to surgical procedures.

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健康马匹的肠电图、超声波收缩力以及盲肠和结肠的胆囊收缩力不会因单次徒手行走运动而改变。
目的:评估徒手行走运动对正常健康马匹肌电活动和收缩力的影响:评估徒手行走运动对正常健康马匹肌电活动和收缩力的影响:前瞻性实验设计。将 8 匹马随机分为对照组和徒手行走治疗组,每匹马同时接受两种治疗。在进行 30 分钟的基线胰岛素电图(EIG)检查后,让马匹在马厩休息或步行 15 分钟。立即并在 2 小时后重复进行胰岛素电图检查。超声波检查和听诊监测 EIG 期间盲肠和左腹侧结肠 (LVC) 的收缩情况。电图频谱分析获得了主导频率(DF)、主导功率(DP)、总功率(TP)的频率分布以及慢波节律活动的变化:以每分钟周期(cpm)为单位的中位(IQR)DF 在盲肠(2.067 cpm; IQR, 0.633 cpm)高于低静脉(2.0 cpm; IQR, 0.396 cpm),但两种治疗方法均无变化。在徒手行走组中,盲肠 DP(0.0086 mV;IQR,0.0070 mV)高于 LVC DP(0.0068 mV;IQR,0.0051 mV),但 DP 和 TP 随时间变化不受任何一种治疗方法的影响。两个治疗组在所有时间点的Borborygmi均无变化。两个治疗组的超声波收缩在各个时间点都相似,并且与波胆碱能相关(ρ = 0.63)。优势肌力与收缩力或borborygmi无相关性(P > .2081):结论:短暂徒手行走作为增加正常马胃肠道蠕动的单一策略不会影响收缩力或EIG:临床意义:禁食和静养可能并不能代表临床病例中观察到的胃肠道淤滞的严重程度。该模型直接适用于手术前禁食的马匹。
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来源期刊
CiteScore
1.60
自引率
15.80%
发文量
539
审稿时长
6-16 weeks
期刊介绍: Published twice monthly, this peer-reviewed, general scientific journal provides reports of clinical research, feature articles and regular columns of interest to veterinarians in private and public practice. The News and Classified Ad sections are posted online 10 days to two weeks before they are delivered in print.
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