2 results about "Back injury" patented technology

This invention belongs to the field of sports science and sports medicine, and discloses a swimmer's back injury early warning system and method based on multimodal temporal information fusion. It includes a data acquisition module for simultaneously acquiring temporal data of the swimmer's kinematics, electromyography, and biomechanics; a data processing and feature extraction module connected to the data acquisition module for preprocessing and aligning the acquired raw data, and extracting kinematic, electromyographic, and biomechanical features to form a multimodal feature sequence; and an injury risk early warning model module storing a pre-trained multimodal temporal fusion injury risk early warning model, receiving the multimodal feature sequence output from the data processing and feature extraction module, and calculating and outputting the injury risk probability value and risk level. This system features multi-dimensional fusion, temporal dynamic modeling, personalized early warning, high precision, and real-time performance.

The invention belongs to the field of furniture, and discloses a backrest rotation center self-adaptive adjustment method which comprises the following steps: step 1, collecting seat surface pressure, identifying the positions of ischial tuberosities on two sides of a human body according to the seat surface pressure distribution, and calculating the positions of hip joints of the human body according to the positions of the ischial tuberosities on two sides of the human body; 2, according to the position of the hip joint of the human body, adjusting the rotation center of the backrest to move to the position the same as the coordinates of the hip joint of the human body in the front-back direction. The position of the human ischial tuberosity point on the seat surface is detected, the position of the human trunk rotating shaft is calculated, the rotating center of the backrest is adjusted to the position coinciding with the rotating center of the human body in the horizontal direction, the phenomena of back rubbing and waist losing caused by unreasonable arrangement of the rotating shaft of the backrest are eliminated, reasonable support is provided for the human body in the backward leaning state, and the human body is more comfortable. Human body waist and back injury caused by long-term use of unreasonable office chairs is avoided.