Real-time Evaluation of ECG Acquisition Systems through Signal Quality Assessment in Horses during Submaximal Treadmill Test.

The research examines a new real-time index for evaluating the quality of electrocardiographic (ECG) readings from horses during a submaximal treadmill test. The results indicate that textile electrodes perform better than standard red-dot electrodes in this application, providing higher quality ECG data.

Methodology

• The researchers conducted a submaximal treadmill test using five horses.
• Two types of ECG monitoring systems were used simultaneously: standard red-dot electrodes and textile electrodes.
• The treadmill test involved four phases with increasing speed: Walk 1, Trot 1, Trot 2, and Gallop.
• A set of three signal quality levels – good (G), acceptable (A), and unacceptable (U) – were used to rate the quality of the ECG readings based on the amount of noise, or unwanted signal interference, in the traces.

Results

• A statistical comparison of the two electrode types was conducted by categorising the signal quality from each.
• The findings, though preliminary, suggested that the textile electrodes were more robust to movement artifacts – disruptions in the ECG caused by the horses’ movement – and performed better than the red-dot electrodes at all levels of treadmill speed.

Implication

• These results have important implications for the development of ECG monitoring systems for horses, particularly in exercise or performance testing situations.
• Textile electrodes could potentially improve the quality of collected ECG readings by reducing the amount of motion artifacts, leading to more accurate diagnoses of high-speed arrhythmias – irregular heartbeat conditions that can be difficult to diagnose accurately using standard methods because of the noise introduced by the horses’ movement.