Integrative research on the mechanisms of acupuncture mechanics and interdisciplinary innovation

This comprehensive review examines the biomechanical mechanisms of acupuncture through an innovative interdisciplinary perspective. The study integrates knowledge from biomedical engineering, cell biology, and traditional Chinese medicine to explain how acupuncture exerts its therapeutic effects through mechanical signals. The research reveals that acupuncture fundamentally functions as a mechanical force stimulus, with mechanical coupling occurring predominantly in loose connective tissues. When a needle penetrates an acupoint, interactions such as surface tension and electrostatic attraction create close contact between the needle and the surrounding connective tissue.

During operations such as needle rotation, mechanical coupling causes collagen fibers to wind around the needle body, inducing deformation and stretching of the connective tissue. This process activates mechanosensitive ion channels in cell membranes, especially Piezo, TRP, and ASIC channels, leading to the influx of ions such as calcium. Activation of these channels triggers a cascade of biochemical responses, including cytoskeletal remodeling in fibroblasts, mast cell degranulation, and release of bioactive mediators. The mechanical effects propagate through the fibrous network in the form of vibrations or elastic waves, with a transmission speed three times faster than neural signals.

The study documents that tissue deformation can extend up to 10 centimeters from the needle insertion point, with sustained tension persisting for 15-20 minutes. The research also explores how different acupuncture parameters — including insertion speed, rotation frequency, and depth — influence tissue responses. Low-frequency techniques tend to evoke more pronounced biological responses, including the deqi sensation. Numerical modeling and computational simulations are emerging as valuable tools for understanding these complex processes.

Visualization technologies, including virtual reality, are being developed for acupuncture training and education. The clinical implications are significant, suggesting that the efficacy of acupuncture can be optimized through an understanding of the underlying biomechanical principles. This may lead to more standardized and personalized treatment protocols. However, the field still faces challenges, including the need for more experimental data, more sophisticated models that consider the viscoelastic properties of biological tissues, and better integration between laboratory findings and clinical applications.