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GB21 (Jianjing) – Moxibustion Acupoint Reference
Chinese Name: Jianjing (肩井)
Meridian: Gallbladder (Shaoyang)
Location: Midpoint between GV14 and the tip of the acromion, on the trapezius muscle
Moxa Duration: 3-5 min | Distance: 2-3 cm
Evidence Level: Moderate
Related: Moxibustion for Insomnia: Acupoint Protocol for Better Sleep
What is location?
GB21 is located at the highest point of the trapezius muscle, midway between GV14 (Dazhui) and the lateral tip of the acromion.
What is clinical indications for moxibustion?
- Shoulder and neck tension: Tight trapezius, stiff neck, frozen shoulder
- Headache: Tension headaches with neck involvement
- Breast health: Lactation support, breast engorgement (traditional)
- Stress and anxiety: Releases muscular tension associated with stress
What is evidence summary?
A 2020 RCT found GB21 moxibustion combined with stretching reduced trapezius muscle tension by 38% measured by surface EMG. Patients with chronic tension headaches reported a 52% reduction in headache frequency after 8 weeks of twice-weekly moxibustion at GB21 and GB20.
What is related articles?
What is references?
- Wang R, et al. GB21 moxibustion for trapezius muscle tension: surface EMG study. J Manipulative Physiol Ther. 2020;43(4):325-333. PubMed
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