• The Journal of the Korea Contents Association
• /
• v.19 no.6
• /
• pp.471-480
• /
• 2019

L-spine 3~4, L-spine 4~5, and L-spine 5~Sacrum 1 intervertebral disc(IVD) angle according to gender, age, body mass index(BMI), lumbar lordosis angle(LLA) were compared and analyzed. The anteriorposterior incidence angle of L-spine 3 ~ 4, L-spine 4 ~ 5 and L-spine 5~Sacrum 1 in body mass index were 5.66, 13.23 and 29.13 degrees in the head direction and L-spine 3 4, L-spine 4 ~ 5, L-spine 5~Sacrum 1 had 6.32 degrees, 16.09 degrees and 35.36 degrees in the head direction. The distortion area ratio comparison was performed with the phantom image using the proposed incidence angle. There was a significant difference in L-spine 4~5 and L-spine 5~Sacrum 1 IVD angle relative to body mass index and LLA(p<0.05), IVD angle and LLA were positively correlated(p<0.05).As a result of evaluating the usefulness of the image by applying the incidence angles of the disc angles according to the phantom angle of deviation to the head direction as 11 degrees for L4 and 26 degrees for L5, the distortion ratio area decreased from 14.90% to 12.11% in L4, And from 15.25% to 13.72% in L5. In anteriorposterior image of the Lumbar spine applying the incidence angle according to the measured disc angle, it is possible to reduce the distortion to purpose L4, L5. And improved the quality and diagnostic information of the target site.

• Journal of the Korean Society of Radiology
• /
• v.5 no.5
• /
• pp.277-282
• /
• 2011

When we keep sitting for a long time, we end up with pain due to changes in the curvature in the waist. This study examined impacts from the wearing of a SPINE-GUARD(belt for the waist stabilization) on a cross-legged sit on variations of the Cobb's angle, lower back pain and trunk flexion angle. 15 men for the examination have watched movies or attended lectures while wearing a belt for 90 minutes per round for every five rounds for two weeks. The Cobb's angle showed a significant decrease from $48.36{\pm}14.57$ before wearing to $28.09{\pm}11.63$ after wearing (p<0.05). Pain decreased from $4.53{\pm}2.36$ before wearing to $2.733{\pm}2.153$ after wearing (p<0.05). The trunk flexion angle also showed a significant decrease from $82.33{\pm}20.30$ before wearing to $70.2{\pm}19.43$ after wearing (p<0.05). Given these findings, the wearing of a SPINE-GUARD seems to affect variations of the Cobb's angle and trunk flexion angle, and decrease of lower back pain.

• 건강소식
• /
• v.33 no.12
• /
• pp.14-15
• /
• 2009

대부분의 사람들은 노년기에 접어들수록 유연성과 민첩성이 떨어지는 데다 골밀도는 낮아지고 뼈를 둘러싼 근육은 약해져 허리 손상이나 자칫 낙상에 의한 골절을 당하기 쉽다. 특히 골다공증을 앓고 있는 노인이 빙판길에서 미끄러지거나 낙상하는 경우 상태가 급격히 악화될 수 있으므로 상당한 주의가 요구된다.

• PNF and Movement
• /
• v.20 no.1
• /
• pp.51-58
• /
• 2022

Purpose: The purpose of this study was to investigate the effect of thoracic-lumbar dissociation motion and slump motion on thoracic-lumbar erector spinae and rectus abdominis muscle activity. Methods: Seventeen healthy adult volunteers participated in this study. All participants performed two motions (thoracic-lumbar dissociation motion, slump motion). Muscle activation during the two motions was measured using a surface electromyography device. The data from this were collected from the iliocostalis thoracis, iliocostalis lumborum, and rectus abdominis. The activities of these muscles before and after each motion were then compared. Results: The iliocostalis thoracis activation was significantly greater during the thoracic-lumbar dissociation motion than during the slump motion (p <0.05). The iliocostalis lumborum activation was greater during the slump motion than during the thoracic-lumbar dissociation motion (p <0.05). The rectus abdominis activation was lesser during the slump motion than during the thoracic-lumbar dissociation motion (p <0.05). Conclusion: This study confirmed that individual contraction of the erector spinae muscles is possible during thoracic-lumbar dissociation motion, which increases the stability of the thoracic spine. In addition, this motion could improve control of the rectus abdominis. Therefore, thoracic-lumbar dissociation motion should be considered for rehabilitation programs for patients with kyphosis and back pain.

• 건강소식
• /
• v.31 no.10 s.347
• /
• pp.6-13
• /
• 2007

우리의 몸은 약 2백 개의 크고 작은 뼈로 구성돼 있다. 관절은 이들 뼈와 뼈 사이의 이음매 역할을 하는 기관이다. 우리가 팔, 다리와 목, 허리 등을 여러 방향으로 움직일 수 있는 것은 관절부위가 회전하거나 굴곡함으로써 가능한 것이다. 사람이 일상생활에서 관절을 움직이는 경우는 1일 10만여 회나 된다고 한다. 관절은 우리 신체의 모든 활동을 원활하게 할 수 있도록 돕는 소중한 기관이다. 관절을 위한 건강한 정보를 제안하고자 이번 호에서는 관절척추전문 세란병원 인공관절센터 오덕순 박사와 세정병원 고재현 병원장의 도움말로 알아본다.

• Anatomy & Biological Anthropology
• /
• v.31 no.4
• /
• pp.151-158
• /
• 2018

The intervertebral foramen is formed by two adjacent vertebrae and an intervertebral disc. Previous studies examining the foramen have been performed using various methods. The author obtained characteristics of the intervertebral foramen based on silicon mold. The author used 18 cadavers and dissected the lumbar intervertebral foramen. First, positional levels of the spinal nerve in the intervertebral foramen were measured. Second, after being removed all tissues covering the intervertebral, bony foramen was filled with melted silicon to mold the cross section. Subsequently, the solidified silicon mold was removed and stamped on a paper. The paper was scanned and analyzed area, perimeter, height and width of the intervertebral foramen on a computer. Area (average, $9.43mm^2$) and perimeter (average, 48.02 mm) did not show any statistical significant pattern for any lumbar vertebral levels. However, the height and width significantly differed at the fifth lumbar vertebra, which had the shortest height (the fifth, 13.00 mm; average, 15.78 mm) and longest width (the fifth, 8.61 mm; average, 7.87 mm), although there were similar patterns in case of area and perimeter of the first to fourth lumbar vertebra. Height had a decrease tendency while width had an increase tendency both from the second to fifth lumbar vertebra. Spinal nerves went through near the intervertebral disc level from the first to fourth lumbar vertebra, although they passed below the disc at the fifth level. This study provides a different view of methodology for the 3-dimensional aspect for the intervertebral foramen. Results of this study may indicate that height and width of the intervertebral foramen changed along all lumbar vertebral levels; nevertheless, area and perimeter of the intervertebral foramen remained constant.

• Journal of the Korean Society of Radiology
• /
• v.15 no.6
• /
• pp.927-933
• /
• 2021

The purpose of this study was to compare and analyze the differences in scan time, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) in the third lumbar vertebral region including the back fat, spinal cord, and cerebrospinal fluid using the mDixon, T2 TSE, and T2 spectral pre-saturation with inversion-recovery (SPIR) techniques. With the factors affecting the SNR fixed, the lumbar sagittal plane images of 30 adults were compared on mDixon, T2 TSE, and T2 SPIR imaging tests. The test times for mDixon, T2 TSE, and T2 SPIR were 115 seconds, 60 seconds, and 60 seconds, respectively. The mDixon T2 images showed higher SNR than the T2 TSE images at the third lumbar vertebral region (p<0.05), lower SNR in the back fat and cerebrospinal fluid (p<0.05) areas, and comparable SNR in the spinal cord (p>0.05). The CNR between the third lumbar vertebral area and back fat was higher in the mDixon T2 images, and the CNR of the cerebrospinal fluid and spinal cord images was higher in the T2 TSE images (p<0.05). The mDixon T2 FS images CNR was lower for the 3rd lumbar vertebral body region and back fat than the T2 SPIR images, and higher for the spinal cord and cerebrospinal fluid images (p<0.05). The CNR between the third lumbar body and back fat areas was higher in the mDixon T2 FS images (p<0.05), and there was no difference in the CNR in the images of the cerebrospinal fluid and the spinal cord (p>0.05). It is difficult to determine whether the mDixon technique is superior to the conventional T2 TSE and T2 SPIR techniques in terms of test time, SNR, and CNR. This study was confined to patients with simple lower back pain and was limited by controlled experimental conditions. Studies using clinically applied protocols are warranted in the future.

• 건강소식
• /
• v.38 no.10
• /
• pp.22-23
• /
• 2014

남녀노소 누구나 가볍게 할 수 있는 손쉬운 운동으로 걷기, 달리기만 한 게 있을까. 허리, 하체, 골반, 어깨, 팔 등 전신을 움직이며 특히 근육과 뼈를 튼튼하게 만든다. 단, 내 몸에 맞는 걸 선택해 바른 자세로 걷고 달려야 효과를 제대로 볼 수 있다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.12
• /
• pp.224-229
• /
• 2019

This study was undertaken to provide correct posture guidance and reference material for sports injury and injury prevention programs, by analyzing body alignment and plantar pressure distribution in high school baseball players. Totally, 32 subjects were enrolled for the study. Body alignment was measured from the trunk imbalance, kyphotic angle, lordotic angle, pelvic tilt, and pelvic torsion. Foot pressure was measured from the left maximum pressure, right maximum pressure, left weight, and right weight. The mean and standard deviation of the measured factors were calculated and tabulated, and the correlation between body alignment and foot pressure distribution was analyzed using Pearson's correlation analysis. All statistical significance levels were set at 0.05. Body alignment and foot pressure distribution show a positive correlation between the lordotic angle of lumbar spine and the left maximum pressure. There was no correlation between trunk imbalance, kyphotic angle, lordotic angle, pelvic tilt, pelvic torsion, and the left·right weight distribution and the left·right maximum pressure of each foot. Results of this study determined that the increase of the lordotic angle of lumbar spine results in more force on one side of the foot, thereby increasing the maximum pressure. We believe our data could be a reference for exercise programs on physical alignment and plantar pressure distribution of athletes.

• 건강소식
• /
• v.36 no.1
• /
• pp.40-41
• /
• 2012

골다공증은 뼈의 화학적 조성에는 변화가 없고 단위 용적 내의 물량 감소를 초래해 경미한 충격에도 쉽게 골절을 일으키는 질환으로 뼛속에 구멍이 많아져 골밀도가 저하된 상태를 말한다. 우리 몸의 뼈는 소아기와 청소년기를 거쳐서 점차 단단해지고 20~30대에 생애 중 최대골량을 형성하며, 나이가 들수록 골량이 서서히 줄어들다가 폐경기 이후 여성에서 매우 빠른 속도로 골량이 감소한다. 이러한 골다공증은 대부분 증상 없이 조용히 진행되다가 골절이 나타난 후에야 발견된다. 골다공증이 진행된 후에는 허리가 구부러지고 경미한 충격에도 골절을 일으키는데 주로 척추, 대퇴골 늑글 등의 골절이 흔히 발생한다.