Abstract
INTRODUCTION: Lumbar back myofasciitis (LBM) is a common condition caused by cold exposure, lumbar injuries or poor posture, leading to aseptic inflammation, fibrosis and chronic pain. While acupuncture stimulation of trigger points is widely used, clinical evidence supporting its efficacy remains limited. This study aims to evaluate the effectiveness and safety of acupuncture stimulation of trigger points in the treatment of LBM and to explore the underlying analgesic mechanisms. METHODS AND ANALYSIS: This single-centre randomised controlled trial will be conducted at Acupuncture and Moxibustion Hospital of China Academy of Chinese Medical Sciences. A total of 60 participants will be randomly assigned to either the experimental group or the control group in a 1:1 ratio. The primary outcome measure will be the Visual Analogue Scale for pain, while secondary outcomes will include pressure pain threshold, ultrasound, infrared thermography and Roland-Morris Disability Questionnaire. ETHICS AND DISSEMINATION: Ethics approval was obtained from the Ethics Committee of Xiyuan Hospital, China Academy of Chinese Medical Sciences (Approval No. 2024XLW007-2). The findings of this study will be published in peer-reviewed journals. Prior to participation, all eligible participants will be given informed consent. TRIAL REGISTRATION NUMBER: ITMCTR2025000258.