2 results about "Muscle belly" patented technology

This invention discloses a method for simulating active diaphragmatic contraction respiratory motion based on a finite element model, comprising the following steps: acquiring human CT scan data; establishing a geometric solid model of the diaphragm based on the CT scan data, the geometric solid model of the diaphragm including the central tendon, muscle belly, and muscle fibers; performing finite element mesh generation on the geometric solid model of the diaphragm, generating diaphragmatic contraction units according to the spatial distribution of muscle fibers to simulate the active contraction of the diaphragm; employing an isotropic hyperelastic constitutive model to describe the passive dynamic characteristics of the diaphragm, and describing the active contraction force of the diaphragmatic contraction units based on the improved Hill active contraction equation; adding physiological boundary conditions to the geometric solid model of the diaphragm, iteratively solving the geometric solid model of the diaphragm to simulate the periodic contraction and inhalation process of the diaphragm, and displaying the diaphragmatic contraction process through visualization software. This invention can express diaphragmatic contraction with precision, reflect diaphragmatic displacement, and improve the accuracy of the passive response of the diaphragm.

An exercise mat for core strengthening is disclosed, comprising a mat body with a lower flat surface designed to maintain stability on a floor during exercise. The mat includes a lumbar support pad positioned in lower back region and angled at approximately 30 degrees relative to lower flat surface, configured to elevate and align the lumbar spine of a user. Additionally, a leg support pad is positioned in lower thigh region, angled at approximately 45 degrees relative to lower flat surface, configured to elevate user's thighs and form a fulcrum for the legs during exercises. The integration of lumbar and leg support pads shifts the user's center of gravity from lumbar to the abdominal region, thereby enhancing core stabilization by engaging rectus abdominis, transverse abdominis, and oblique muscles while reducing strain on lower spine and hip flexors. The present invention improves biomechanical efficiency and minimizes injury risks during core-strengthening exercises.