• 한국정밀공학회지
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• 제26권10호
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• pp.116-121
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• 2009

It is important to consider lumbar lordotic angle for setup of training program in field of sports and rehabilitaton to prevent unexpected posture deviation and back pain. The purpose of this study was to analyze the biomechanical impact of the level of lumbar lordosis angle during isokinetic exercise through dynamic analysis using a 3-dimensional musculoskeletal model. We made each models for normal lordosis, excessive lordosis, lumbar kyphosis, and hypo-lordosis according to lordotic angle and inputted experimental data as initial values to perform inverse dynamic analysis. Comparing the joint torques, the largest torque of excessive lordosis was 16.6% larger and lumbar kyphosis was 11.7% less than normal lordosis. There existed no significant difference in the compressive intervertebral forces of each lumbar joint (p>0.05), but statistically significant difference in the anterioposterior shear force (p<0.05). For system energy lumbar kyphosis required the least and most energy during flexion and extension respectively. Therefore during the rehabilitation process, more efficient training will be possible by taking into consideration not simply weight and height but biomechanical effects on the skeletal muscle system according to lumbar lordosis angles.

• 척추신경추나의학회지
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• 제17권1호
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• pp.55-60
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• 2022

Objectives To introduce a case of a traffic accident trauma in a patient with lumbar kyphosis and straightened lumbar curvature, where the Korean medicine treatment with Chuna manual therapy (CMT) improved lumbar lordotic angle(LLA) and lower back pain. Methods Chuna manual therapy and other Korean medicine treatments; were provided to patient with a flat back posture and low back pain due to the trauma from a traffic accident. Cobb's angle to evaluate LLA and numeric rating scale (NRS) to evaluate pain were compared before and after the treatment. Results There was a significant increase in LLA to reach the normal range and a decrease in low back pain NRS after Korean medicine treatment with CMT for 9 days of admission treatment and 3 weeks of outpatient treatment. Conclusions This study suggests that Korean medicine treatment, including CMT, may improve low back pain as well as LLA of straightened lumbar curvatures in patients.

• 한국콘텐츠학회논문지
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• 제11권12호
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• pp.800-806
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• 2011

본 연구는 요추 지지대가 노인의 머리와 목 자세에 미치는 영향을 분석하고자 하였다. 20명의 신체 건강한 노인(평균 나이 71.32세)을 대상으로 측정하였으며, 앉은 자세에서 모니터를 시청하는 동안 요추만곡을 요추 지지대 사용 유무에 따라 조절하였다. 측정은 측면에서 사진을 촬영하였다. NIH ImageJ 1.32 프로그램을 사용하여 상부경추 굴곡 각도와 하부경추 굴곡 각도를 측정하였고 분석은 대응 t 검정을 사용하였다. 그 결과, 상부경추 굴곡 각도와 하부경추 굴곡 각도는 요추 지지대 적용 여부에 따라 유의한 차이가 있었다. 상부경추 평균 굴곡 각도는 요추 지지대 적용할 때가 적용하지 않을 때보다 약 $2.83^{\circ}$ 증가하였다(p<0.005). 하부경추 평균 굴곡 각도 역시 요추 지지대를 적용할 때 약 $4.44^{\circ}$ 증가되었다(p<0.0001). 이는 요추 지지대를 적용하였을 때 상부경추와 하부경추 굴곡을 증가시킴으로 머리와 목 자세에 좋은 영향을 주는 것을 의미한다. 따라서 노인의 머리와 목 자세 개선시 요추만곡 조절을 고려해야 할 것이다.

• 척추신경추나의학회지
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• 제3권2호
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• pp.69-76
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• 2008

Objectives : The purpose of this study is to investigate the relationship among low back pain, lumbar lordosis, obesity and Sasang constitution. Methods : The researcher discriminated the Sasang constitutions of those observed-the inpatient-who were treated from March to May 2008 for low back pain. X-ray were taken in lateral decubitus and the lumbar lordotic angles(LLA) were measured. BMI were measured. This results were statistically analyzed using SPSS 12.0. Results : 1. Among the 31 subjects, distributional rate of Soyangin, Taeumin, and Soeumin were 48.4%, 29.0% and 22.6%. 2. The result showed a significant difference with the Sasang constitution from $\ll$Dongy Suse Bowqn$\gg$. 3. The result showed a difference with the Sasang constitution from the existing result from OSCC II. 4. There was no significant relations between each constitutions and lumbar lordotic angle. 5. There was significant relations between each constitutions and BMI. Conclusions : In this study, The rate of Soyangin, among the low back pain patients, was higher. And the average of BMI was higher in Taeumin.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2008년도 추계학술대회 논문집
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• pp.205-206
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• 2008

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2012년도 춘계학술대회 논문집
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• pp.773-774
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• 2012

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2008년도 춘계학술대회 논문집
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• pp.229-230
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• 2008

• 척추신경추나의학회지
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• 제7권1호
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• pp.27-34
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• 2012

Objectives : The purpose of this study is to find out the relation between 4th lumbar rotational malposition and scoliosis. Methods : We investigated 22 cases of patients who were diagnosed as scoliosis. We used AP & Lateral view X-ray for patients. And we analysed the relation between 4th lumbar rotational malposition and scoliosis. Results : P-value was 0.436 between 4th lumbar rotational amount and lordotic angle, and was 0.758 between 4th lumbar rotational amount and wedge angle(p>0.05). And p-value was 0.022 between 4th lumbar rotational amount and scoliotic apex rotational amount(p<0.05), but was 0.286 between 4th lumbar rotational amount and Cobb's angle(p>0.05). Conclusions : The results suggest that 4th lumbar rotational malposition was statistically correlation with scoliotic apex rotational malposition, was not Cobb's angle, 4th lumbar lordotic & wedge angle.

• 한국산학기술학회논문지
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• 제15권2호
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• pp.962-969
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• 2014

본 연구는 한국의 건강한 청소년을 대상으로 Rasterstereography를 이용하여 성별에 따른 척추-골반 정렬 패턴을 분석하여 특성을 확인하고, 각 변수의 상관관계를 확인하기 위하여 수행하였다. 2013년 5월부터 10월까지 정상 청소년 61명(남 31명, 여 30명)을 대상으로 실시하였고, 평균 나이는 $16.40{\pm}2.20$세였다. 그 결과 PSIS비율이 남자 $21.15{\pm}2.40$%, 여자 $23.41{\pm}3.28$%로 유의한 차이가 있었으며(p<.01), 요추전만각에서 남자 $33.44{\pm}8.46^{\circ}$, 여자 $38.96{\pm}8.11^{\circ}$로 유의한 차이가 있었으나(p<0.01), 그 외의 변수에서 성별에 따른 유의한 차이는 없었다(p>.05). 요추전만각은 골반기울기(r=.348), 흉추후만각(r=.609)과 유의한 상관관계가 있었다. 척추회전각은 흉추후만각(r=-.278), 요추전만각(r=-.256), 척추옆치우침(r=.493)과 유의한 상관관계를 보였다. 본 연구 결과는 한국 청소년의 성별에 따른 Rasterstereography를 이용한 척추-골반 정렬 분석의 기초자료가 될 것이고, 척추 및 골반에 구조적 질환을 가진 청소년과 비교할 수 있는 자료로 활용할 수 있을 것이다.

• International Journal of Contents
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• 제17권1호
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• pp.18-26
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• 2021

The obesity leads to be the result of the weakening of anatomical structure as well as the gravity effect. And, the obesity interferes with normal sagittal balance and fails to maintain a straight posture with minimal energy. Therefore, the obesity can be an important factor in causing back pain by changing the lumbar lordosis. In this study, we will present an appropriate angle of incidence for obese people to reduce the image distortion of L4, L5 during a general anteroposterior radiography examination. To reduce image distortion according to the change of lordosis, the angle of incidence was applied 9 ° and 21 ° to L4 and L5 vertebra body when obesity and low back pain (LBP) perform the general anteroposterior radiography examination.