A resting electrocardiogram (ECG) can be procedure used to evaluate the electrical activity of your heart. During a resting ECG, you will remain still while electrodes are placed on your chest, arms, and legs. These electrodes record the tiny electrical impulses generated by your heart as it beats. The resulting tracing provides valuable data about

A still electrocardiogram (ECG) is a/represents/provides a snapshot/picture/recording of the electrical activity/heartbeat rhythm/heart's signals in your heart/cardiac system. During/Throughout/While performing this test, you will lie down/you are seated comfortably/you remain relaxed on a bed/table/couch, and electrodes/sensors/leads are attached