English-Chinese/Sleep researchers also use simplified electrocardiography (EKG) for cardiac activity and actigraphy for motor movements

Sleep researchers also use simplified electrocardiography (EKG) for cardiac activity and actigraphy for motor movements.

睡眠研究人员还使用简化心电图（EKG）进行心脏活动，并使用活动记录仪记录肌肉运动.