Fig. 4: EES in motion, temperature change, and disease screening.
From: Chest-scale self-compensated epidermal electronics for standard 6-precordial-lead ECG
a Comparison of ECG and EMG intensity from V1 to V6 during chest exertion. Error bars represent the standard deviation of 3 measurements. b ECG during slow walking. c Hydration during running. d Heart rate and hydration index during environment temperature change. e Mean P-R interval over 5 cardiac cycles extracted by V1–V6 ECGs of the subject with sinus arrhythmia, measured by EES and gel electrodes respectively. Error bars represent the standard deviation of the results from 5 different cardiac cycles. f The difference between the maximum and minimum P-P interval extracted from the same ECGs as (e).
