The Palliative Effect of TENS-WAA on 'Capsaicin/Heat' Induced Acute Lower Back Pain: a Self-controlled Clinical Study

Acute lower back pain is a common condition that occurs in all age groups, and most people will experience acute lower back pain at least once in their lives. The use of pharmacological analgesic interventions may result in complications such as gastrointestinal reactions, skin reactions, and renal damage, so there is an urgent need for an analgesic method that is easy to use, relatively safe, and has no significant systemic side effects to alleviate patients' pain. Wrist and ankle acupuncture is an acupuncture therapy developed by Professor Zhang Xinshu and other professors of the First Affiliated Hospital of the Second Military Medical University of the Chinese People's Liberation Army based on the meridian theory of Chinese medicine, by dividing the human body into two segments and six zones and treating them according to the longitudinal zones in which the illnesses are located or the corresponding points of the areas where the primary lesions are located, in order to achieve the purpose of dredging the meridians and collaterals, regulating qi and blood, balancing the yin and yang, relieving pain and treating the illnesses, and it has been widely used for treating the clinical It is widely used to treat all kinds of pain and neurological diseases. Transcutaneous Electrical Nerve Stimulation is a non-invasive pain treatment method, which relieves pain by distributing current of specific frequency and intensity to stimulate peripheral nerves. In recent years, our team has combined the wrist and ankle needles with transcutaneous electrical nerve stimulation to develop an analgesic device that can be worn on the human wrist and ankle, which is called transcutaneous electrical nerve stimulation based on the theory of wrist and ankle needles. Transcutaneous Electrical Nerve Stimulation based on Wrist-Ankle Acupuncture theory（TENS-WAA) uses low-frequency electronic pulses to stimulate the entry point of the wrist-ankle acupuncture needle, which has the advantages of