Location, angle and depth of the operation of acupoints in the electro-acupuncture group
| Acupoints | Location, angle and depth of the operation |
| ST36 | On the anterior side of the leg, on the line connecting the depression lateral in the patellar ligament with the depression at the centre of the front surface of the ankle joint between the tendons of extensor hallucis longus and extensor digitorum longus, 3 B-cun inferior to the patellar ligament; pierced vertically 1–2 B-cun with needles of 0.25×50 mm size. |
| GB39 | On the anterior to the fibula, 3 B-cun above the prominence of the lateral malleolus; pierced vertically 0.5–1 B-cun with needles of 0.25×40 mm size. |
| SP6 | On the posterior to the medial border of the tibia, 3 B-cun above the prominence of the medial malleolus; pierced vertically 1–1.5 B-cun with needles of 0.25×50 mm size. |
| SP9 | On the inner aspect of the tibia, in the depression between the inferior border of the medial border of the tibia and the medial condyle of the tibia; pierced vertically 1–1.5 B-cun with needles of 0.25×50 mm size. |
| GB41 | On the dorsum of the foot, on the anterior to the union of the bases of the fourth and fifth metatarsal bones, in the depression of the lateral aspect of the fifth extensor digitorum longus tendon; pierced vertically 0.5–0.8 B-cun with needles of 0.25×40 mm size |
| LR3 | On the dorsum of the foot, between the first and second metatarsal bones, in the anterior depression of two bones union, the dorsalis pedis artery can be palpated; pierced upward oblique pricking 0.5–1 B-cun with needles of 0.25×40 mm size |
| EX-LE12 | On the middle of the tip of the ten feet toes; pierced vertically 0.1–0.2 B-cun with needles of 0.25×40 mm size |
| LI4 | On the dorsum of the hand, in the depression of the second metacarpal bone midpoint off to the radial side; pierced vertically 0.5–1 B-cun with needles of 0.25×40 mm size |
| LI11 | On the lateral aspect of the elbow, on the lateral side of the elbow, at the line midpoint of the lateral depression of the biceps brachii tendon and the lateral epicondyle of the humerus; pierced vertically 1–1.5 B-cun with needles of 0.25×50 mm size |
All the above locations of acupoints are referenced to WHO Standard Acupuncture Point Locations in the Western Pacific Region.
B-cun, proportional bone cun.