Table 2: SEMG Electrode positions.
| Muscle | Localization/orientation |
| M. rectus abdominis(RA) | Caudal electrode at navel height, 4 cm from center/vertical |
| M. obliquus internus(OI) | Medial inguinal ligament, at anterior superior iliac spine height/horizontal |
| M. obliquus externus(OE) | Cranial electrode directly below lowest point of the costal arch/along line to contralateral pubic tubercle |
| M. multifidus (MF) | Caudal electrode at L5 height/1 cm medial and parallel to line between posterior superior iliac spine line and L1 |
| M. longissimus (LO) | Caudal electrode at L1 height, over palpable bulge of muscle (approx. 2 fingers lateral from midline)/vertical |
| ECG | Above heart/along heart axis |