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In this study, we propose an estimation model of lumbar load, which is a factor in lumbar disorders. Our proposed method uses a musculoskeletal model with elastic elements between the vertebral bodies, and simulates the inter- vertebral disk pressure and the displacement of the vertebral bodies simultaneously.
Anteflexion of the spine is essential for many physical activities in everyday life. However, this motion places the lumbar disks under heavy load due to changes in the shape of the lumbar spine and can lead to low back pain. With the aim of reducing low back pain, here we developed a wearable sensor system that can estimate lumbosacral alignment and lumbar load by measuring the shape of the lumbar...
Anteflexion is essential for many physical activities ranging from carrying objects through snow shoveling to farm work. However, lumbago is a common cause of anteflexion, in which lumbar disks are under a heavy load due to changes in lumbar spine shape. With the aim to reduce lumbago risk, in this study we developed a motion sensor system that can estimate the shape, posture and load on the lumbar...