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Fig. 5 | BMC Complementary and Alternative Medicine

Fig. 5

From: Coarse needle surface potentiates analgesic effect elicited by acupuncture with twirling manipulation in rats with nociceptive pain

Fig. 5

Acupuncture needle torque developed by skin tissue resistance against uni-directional rotation of the needle (total three times of rotation) were measured by using Acusensor®. Manipulation of deeply scraped needle (ACU200) significantly increased the torque as the rotation number increased. **p < 0.01 versus one time of rotation; #p < 0.05, ##p < 0.01 versus ACU group

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