Research on the Characteristics and Regularities of the Dose–Effect Relationship in Acupuncture

INTERVENTION: Deqi Acupuncture Group:Acupuncture;Sham Acupuncture (Non‐Deqi) Group:sham acupuncture; CONDITION: acute non‐specific low back pain PRIMARY OUTCOME: Visual Analogue Scale (VAS); SECONDARY OUTCOME: Oswestry Disability Inde X(ODI);Japanese Orthopaedic Association score for low back pain; INCLUSION CRITERIA: Inclusion Criteria Patients diagnosed with acute nonspecific low back pain (ANLBP) by a specialist physician; Onset duration =14 days, age between 18 and 65 years, with no gender limitation; Pain localized between T12 and the gluteal fold, mainly mechanical or non‐radicular in nature (above the knee), originating from somatic referred pain; Pain intensity =3 on the Visual Analogue Scale (VAS); Conscious and cooperative, able to understand and complete relevant questionnaires, and willing to provide written informed consent. Note: Only patients who meet all five criteria will be eligible for inclusion in this study.