A resting electrocardiogram (ECG) is a common procedure used to assess the electrical activity of your heart. During a resting ECG, you will sit still while electrodes are placed on your chest, arms, and legs. These electrodes measure the tiny electrical signals 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