Lee, Song Joo Cho, Yong-Eun Kim, Kyung-Hyun Lee, Deukhee 2024-01-19T15:05:17Z 2024-01-19T15:05:17Z 2021-09-05 2021-03 2079-6374 https://pubs.kist.re.kr/handle/201004/117320 Knowing the material properties of the musculoskeletal soft tissue could be important to develop rehabilitation therapy and surgical procedures. However, there is a lack of devices and information on the viscoelastic properties of soft tissues around the lumbar spine. The goal of this study was to develop a portable quantifying device for providing strain and stress curves of muscles and ligaments around the lumbar spine at various stretching speeds. Each sample was conditioned and applied for 20 repeatable cyclic 5 mm stretch-and-relax trials in the direction and perpendicular direction of the fiber at 2, 3 and 5 mm/s. Our device successfully provided the stress and strain curve of the samples and our results showed that there were significant effects of speed on the young&apos;s modulus of the samples (p < 0.05). Compared to the expensive commercial device, our lower-cost device provided comparable stress and strain curves of the sample. Based on our device and findings, various sizes of samples can be measured and viscoelastic properties of the soft tissues can be obtained. Our portable device and approach can help to investigate young&apos;s modulus of musculoskeletal soft tissues conveniently, and can be a basis for developing a material testing device in a surgical room or various lab environments. English Multidisciplinary Digital Publishing Institute (MDPI) Developing a Quantifying Device for Soft Tissue Material Properties around Lumbar Spines Article 10.3390/bios11030067 1 Biosensors, v.11, no.3 Biosensors 11 3 Y scie scopus 000633409400001 2-s2.0-85102603881 Chemistry, Analytical Nanoscience & Nanotechnology Instruments & Instrumentation Chemistry Science & Technology - Other Topics Instruments & Instrumentation Article quantifying device soft tissue material properties lumbar