Dynamic segmental kinematics of the lumbar spine during diagnostic movements

Background:In vivo measurements of segmental-level kinematics are a promising avenue for better understanding the relationship between pain and its underlying, multi-factorial basis. To date, the bulk of the reported segmental-level motion has been restricted to single plane motions.Methods: The present work implemented a novel marker set used with an optical motion capture system to non-invasively measure dynamic, 3D in vivo segmental kinematics of the lower spine in a laboratory setting. Lumbar spinal kinematics were measured for 28 subjects during 17 diagnostic movements.Results: Overall regional range of motion data and lumbar angular velocity measurement were consistent with previously published studies. Key findings from the work included measurement of differences in ascending versus descending segmental velocities during functional movements and observations of motion coupling paradigms in the lumbar spinal segments.Conclusion: The work contributes to the task of establishing a baseline of segmental lumbar movement patterns in an asymptomatic cohort, which serves as a necessary pre-requisite for identifying pathological and symptomatic deviations from the baseline

The Girl

The painting represents my first foray into colored portraiture using a digital medium, and represents, for me, a great step forward in my own artistic development. It therefore holds significance to me in that respect. It is a simple portrait of a young woman, set to contrast her pale skin with her dark hair. This contrast between light and dark is carried to the rest of the painting through the irregular gray background as well, while not carried into a unnatural level of contrast. The piece is meant to convey femininity through the softer, delicate features of the face.https://scholarsmine.mst.edu/libcom_stuart_spring2017/1038/thumbnail.jp

Forest Fire

This is my third portrait produced in color using digital painting tools. The idea for the image came from Gaelic origins, with orange hair and vibrant green landscapes. The piece is invented in design, though the portrait did have a model off of which it was based.https://scholarsmine.mst.edu/libcom_stuart_fall2017/1008/thumbnail.jp

Dancing Rain

Dancing Rain was a request from a dear family member. I so liked the concept of dancing rain that I immediately set to work on it after receiving the request, and the piece just flowed into being, emerging from the blank page with its own life and coming faster and easier than any other of my pieces. Rain and storms have such life to them, and bring life to the earth in their passing. Why should the rain not dance?https://scholarsmine.mst.edu/libcom_stuart_spring2018/1026/thumbnail.jp

Not Alone

Sometimes darkness falls in life. The light fades, and it seems that the shadows of hurt and heartache must be faced alone. But even in the deepest dusk, light can be found. The storms can be weathered, the wounds healed. The horizon will brighten, the shadows will retreat, the sun will rise. And, through it all, you are not alone.https://scholarsmine.mst.edu/libcom_stuart_spring2018/1027/thumbnail.jp

Clark Kent

Clark Kent with a Superman logo backgroundhttps://scholarsmine.mst.edu/libcom_stuart_spring2017/1054/thumbnail.jp

Mending the Break

This painting is to highlight that some wounds require internal healing, as well as external.https://scholarsmine.mst.edu/libcom_stuart_fall2017/1042/thumbnail.jp

Armine

This is a portrait of a friend of mine.https://scholarsmine.mst.edu/libcom_stuart_spring2018/1028/thumbnail.jp

New Discoveries

This piece was a practice in using only lines and minimal shading to produce a figure. I chose for the model a little kitten, since they have such an endearing way of expressing their feeling through their pose and eyes, making them ideal for a work trying to convey some implied motion or emotion with minimal fuss over detail.https://scholarsmine.mst.edu/libcom_stuart_fall2017/1025/thumbnail.jp

Image15_Dynamic segmental kinematics of the lumbar spine during diagnostic movements.TIF

Background:In vivo measurements of segmental-level kinematics are a promising avenue for better understanding the relationship between pain and its underlying, multi-factorial basis. To date, the bulk of the reported segmental-level motion has been restricted to single plane motions.Methods: The present work implemented a novel marker set used with an optical motion capture system to non-invasively measure dynamic, 3D in vivo segmental kinematics of the lower spine in a laboratory setting. Lumbar spinal kinematics were measured for 28 subjects during 17 diagnostic movements.Results: Overall regional range of motion data and lumbar angular velocity measurement were consistent with previously published studies. Key findings from the work included measurement of differences in ascending versus descending segmental velocities during functional movements and observations of motion coupling paradigms in the lumbar spinal segments.Conclusion: The work contributes to the task of establishing a baseline of segmental lumbar movement patterns in an asymptomatic cohort, which serves as a necessary pre-requisite for identifying pathological and symptomatic deviations from the baseline.</p