1. .Characterization of Stabilizing Muscle Dysfunction in LDH Patients Using advanced techniques such as high-density surface electromyography (HD-sEMG), this study will investigate the functional imbalance of lumbar stabilizing muscles in LDH patients by comparing their muscle function indicators to those of healthy controls. 2. .Impact of Spinal Manipulation on Lumbar Stabilizing Muscle Function Through serial sEMG evaluations, the study will assess changes in stabilizing muscle function in LDH patients before and after spinal manipulation. This includes a focus on endurance, motor control, and reaction time, providing evidence to inform the application of spinal manipulation in LDH treatment. 3. .Exploration of Mechanisms Underlying Spinal Manipulation in Improving "Musculoskeletal Imbalance" The study will examine correlations between improvements in stabilizing muscle function and clinical symptoms, such as pain relief and functional recovery. Statistical analyses of sEMG data and clinical efficacy indicators will be conducted to uncover the therapeutic characteristics of spinal manipulation in LDH intervention, offering new theoretical bases and strategies for long-term treatment and recurrence prevention.
1.Meet the diagnostic criteria for LDH as outlined in the ninth edition of "Surgery," with confirmation via MRI;
2.Age between 20 and 50;
3.Simple L4/5 disc herniation; VAS score ≥30/100;
4.Lumbar ODI index ≥20;
1: Exclusion criteria: history of spinal surgery or severe spinal trauma;
2: combined with bone tuberculosis, tumors, severe osteoporosis, etc;
3: combined with serious internal diseases such as cardiovascular, hematological, digestive system diseases, or psychiatric disorders;
4: pregnant or lactating women;