Tag: muscle tension

Annotation: Massage therapy is widely used to relieve muscle tension and improve circulation, yet the physiological mechanisms responsible for these effects remain fragmented across disciplines. This study constructs a hierarchical model of how massage acts on muscle tissue, the vascular system, and the nervous system at different levels of biological organization. Through a systematic review of 20 peer-reviewed sources, including shear-wave elastography studies, Doppler ultrasound investigations, near-infrared spectroscopy measurements, and molecular-level biopsy analyses published between 1990 and 2024, the study identifies four distinct levels at which massage exerts its effects: the tissue level (viscoelastic deformation and fascial remodeling), the macrovascular level (venous return facilitation without significant arterial flow increase), the microcirculatory level (capillary perfusion enhancement and lymphatic drainage), and the neuroreflex level (spinal, brainstem, and cortical modulation of muscle tone). A notable finding is that massage does not increase arterial blood flow to muscles, as demonstrated by Shoemaker et al. [8] and confirmed by Wiltshire et al. [10], contradicting a widely held assumption. At the molecular level, Crane et al. [1] showed that massage attenuates NF-κB signaling and stimulates mitochondrial biogenesis via PGC-1α activation. The study proposes three original analytical frameworks: a three-stage temporal model of muscle relaxation based on shear-wave elastography data [4; 6; 7], a concept of differentiated vascular response synthesizing Doppler and near-infrared evidence [8–12], and a comparative effectiveness matrix evaluating six massage techniques across six physiological parameters.