• Journal of radiological science and technology
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• v.37 no.4
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• pp.273-278
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• 2014

Bone density measurement use of diagnosis of osteoporosis and it is an important indicator for treatment as well as prevention. But errors in degree of precision of BMD can be occurred by status of patient, bone densitometer and radiological technologist. Therefore the author evaluated that how BMD changes according to the condition of the patient. As Lumbar region, which could lead to substantial effects on bone density by diverse factors such as the water, food, intentional bowels. We recognized a change of bone mineral density in accordance with the height of the water tank and in the presence or absence of the gas using the Aluminum Spine Phantom. We also figured out the influence of bone mineral density by increasing the water and food into a target on the volunteers. Measured bone mineral density through Aluminum Spine Phantom had statistically significant difference accordance with increasing the height of water tank(p=0.026). There was no significant difference in BMD according to the existence of the bowl gas(p=0.587). There was no significant difference in a study of six people targeted volunteers in the presence or absence of the food(p=0.812). And also there was no significant difference according to the existence of water(p=0.618). If it is not difficult to recognize the surround of bone in measuring BMD of lumbar bone, it is not the factor which has the great effect on bone mineral density whether the test is after endoscopic examination of large intestine and patient's fast or not.

• 건강소식
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• v.35 no.12
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• pp.16-17
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• 2011

골다공증은 골강도에 문제가 생겨서 골절 위험이 커지는 질환이다. 골강도는 골밀도와 골의 질로 결정되는데, 골강도의 70%는 골량 즉, 골밀도에 의존한다. 따라서 골밀도는 골다공성 골절을 가장 잘 예측할 수 있는 지표가 된다.

• The Journal of Korean Physical Therapy
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• v.13 no.1
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• pp.97-105
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• 2001

Objectives: The objective of this study was to investigate the Associated factors of bone mineral density in postmenopausal was measured for 36 normal in the women from July 14.2000 to august 24,2000. Methods: The data were collected from women who visited Physical Examination Center of a Catholic university hospital located in Taegu. Bone mineral density(BMD) of lumbar spine was measured using energy absorptiometry. Results: The bone mineral density of the lumbar spine decreased with aging. The bone mineral density of the lumbar spine increased with number of delivery and number of abortion decreased. The mean bone mineral density of the lumbar spine of postmenopausal women in age less than 50 and 50 ${\sim}$ 59 were 0.79 g/c$m^2$, the lumbar spine of postmenopausal women in age greater than 60 was 0.69 g/c$m^2$. The mean bone mineral density of the lumbar spine of postmenopausal women in mean age 56.1. Conclusions: In the multiple regression of risk factors to bone mineral density(BMD) of lumbar spine were correlated with bone mineral density T-scores(p<0.05). Osteoporosis is a major public health problem among the elderly, demanding effective strategic approach for prevention and treatment.

• Journal of the Korean Society of Radiology
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• v.5 no.1
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• pp.27-35
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• 2011

The purpose of this study is to examine factors that affect the bone mineral density of pre-menopause women by using the dual energy x-ray absorptionmetry, ultimately contributing to preventing women's osteoporosis that tends to be aggravated since menopause. Out of the subjects, 20.2% were suffering osteopenia. Age was found most important in estimating the level of bone mineral density. Meanwhile, the older women were, the significantly lower their bone mineral density was. It was found that taking exercise has a more positive effect on boss mineral density than not taking. Exercising in a suitable amount was helping women keep their bone mineral density better. Preferring meat to vegetarian diets were significantly affecting women's bone mineral density. Meanwhile, it was found that the shorter menstrual cycle is, the significantly lower bone mineral density is. A multi=regression analysis of bone mineral density and its related factors showed that the older women were, the significantly lower their bone mineral density was. In other words, age was found as the most risk factor of osteoporosis.

• Journal of the Korean Society of Food Science and Nutrition
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• v.33 no.2
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• pp.339-348
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• 2004

This study was peformed to assess the relationships among bone mineral density (BMD), Physiological characteristics and lifestyle factors in 61 premenopausal working women aged 30∼49 y in Busan. The BMDs of the lumbar spines (Ll∼L4), femoral necks (FN), ward's triangles (WT) and trochanters (TC) were measured by dual energy X-ray absorptiometry. Data for physiological characteristics and physical activity was assessed by questionnaire and usual intakes of coffee, green tea, alcohol, Coca cola by food frequency questionnaire. The BMDs of L14, FN, WT and TC were 1.02 g/$\textrm{cm}^2$, 0.76 g/$\textrm{cm}^2$,0.69 g/$\textrm{cm}^2$ and 0.66 g/$\textrm{cm}^2$respectively The BMD of FN was assessed as osteopenia by T-score. The BMD of WT was positively correlated with age of monarch (p<0.05) and the BMD of Ll4 was positively correlated with delivery number (p<0.05). The BMD of Ll4 was positively correlated with hours of outdoor activity per weekend and week (p<0.05, p<0.05). The BMDs of FN and WT (p<0.05, p<0.05) were positively correlated with intake of green tea per month and the BMD of FN (p<0.05) was positively correlated with intake of wine per month. But the BMD of Ll (p<0.05) was negatively correlated with intake of Coca cola per month. So nutritional education for increasing hours of outdoor activity and decreasing intake frequency of beverage contributing to diminishment of bone mineral density is needed for premenopausal working women to prevent osteoporosis.

• Journal of radiological science and technology
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• v.32 no.4
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• pp.411-418
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• 2009

To evaluate the bone mineral density (BMD) and biochemical markers. We evaluated the BMD of femoral neck and lumbar spines of 998(male 568, female 430) persons who took a regular health screening in Woosuk University Hospital from September 2007 to March 2008 by dual energy bone mineral densitometry. Results of BMD are different in terms of biochemical markers. Especially aged people showed osteoporotic change progressively. Degree of osteoporosis increases with age. A steep decrease of BMD can be found in postmenopausal women who have low level of female hormone. More persistent effort is needed to find out the factors that can reduce BMD values for prevention of problems by osteoporosis. In essence, research on factors related to other biochemical markers must be studied continuously.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.24-27
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• 2009

본 연구는 일개 농촌주민들을 대상으로 신체구성, 운동(과거 운동여부), 체력상태, 골밀도를 조사하고, 골밀도와의 관련된 요인을 파악하여 농촌 주민들의 골다공증 예방을 위한 기초자료를 제시하고자 143명을 대상으로 연구하였고, 결과는 다음과 같다. 1. 조사대상자들 연령이 증가할수록, 교육수준이 낮을수록 골밀도가 낮았다(p<0.05). 2. 만성질환이 있는 경우는 없는 경우보다 골밀도가 낮았다(p<0.05). 3. 체중 BMI 체지방량 제지방량이 많이 나가는 경우가 낮은 경우보다 골밀도가 유의하게 높았다(p<0.01). 4. 과거 운동을 했던 경우와 기초대사량이 높은 경우, 근육량이 많은 경우 골밀도가 높았다(p<0.01). 5. 악력 윗몸일으키기 팔굽혀펴기 등 체력이 좋은 경우 골밀도가 높았다(p<0.01). 6. 골밀도 수치를 종속변수로 한 다중 회귀분석결과 연령, 만성질환 유무, 과거 운동유무가 유의한 변수로 나타났다.

• Journal of the Korean Society of Radiology
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• v.5 no.4
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• pp.171-178
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• 2011

To investigate the decrease of BMD by age and the risk factor of osteoporosis in Korean men. We describe the study of a five-years retrospective observational study with male patients. Eighty Korean men who visited hospital for health screening were assessed for this study from 2002 to 2006. We evaluated the BMD of the femoral neck and L-spine, and the preferences and habits in the life. The data were collected for 5 years, and we analysed the five-years change of BMD and the relations between BMD and other factors. Subjects were divided into 3 group by 1st assessment of femoral neck BMD, and were compared with each other. The age of subjects was $43.15{\pm}4.82$ and BMD of femoral neck was $-0.61{\pm}0.97$ and BMD of L-spine was $-0.67{\pm}1.10$ in the first year assessment. The femoral neck BMD of 4th and 5th assessment was decreased significantly compared to that of 1st assessment. The L-spine BMD of 2nd assessment was decreased significantly compared to the 1st assessment. There was no significant correlation between the changes of BMD and preferences or habits-drinking, smoking, eating habit, exercise. The femoral neck BMD of 5th assessment was decreased significantly compared to that of 1st assessment in the high femoral neck BMD group. And there was no significant change of femoral BMD and L-spine BMD in other groups. Low BMD group in the 1st assessment showed lowest BMD in the 5th assessment and high BMD group in the 1st assessment showed highest BMD in the 5th assessment. We can guess that the young men who has low BMD could have high risk of osteoporosis when he became older. And the femoral BMD should be considered important in anticipating the changes of BMD in middle aged men.

• Journal of Nutrition and Health
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• v.45 no.5
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• pp.470-478
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• 2012

This study was conducted to investigate dietary factors, bone status, and bone loss in postmenopausal women in rural areas. A total of 189 women participated in the follow-up study after two years. Radius, Tibia, and Phalanx SOS (Speed of Sound) was measured on two occasions 2 years apart by ultra-sonic-metry, and % body fat was measured by bioelectrical impedance analysis at the baseline and after 2years. Dietary intake data were collected 4 times at different season by 24-hour recall method, and then calculated as average. Bone density of radius decreased by 4.2% during the two year period. When the subjects were divided into three groups, by bone decline level during two years, the lowest bone loss group had higher potassium and vegetable intake than other groups. Age and calcium intakes showed significant correlation with bone decline rate at tibia. In multiple regressions, the baseline SOS, vitamin A, vegetables and eggs intakes were found to be significant factors for tibia bone decline. In conclusion, dietary factors, such as higher vegetable intake, seem to affect the changes in bone mineral density in more favorable way. Therefore, efforts are needed to enhance the access to nutritional care for rural elderly postmenopausal women.

• The Journal of the Acoustical Society of Korea
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• v.28 no.6
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• pp.542-547
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• 2009

In this in vivo study, correlations of lumbar and femoral bone mineral densities (BMDs) with calcaneal speed of sound (SOS) were investigated in 36 osteoporotic women. Areal BMDs of the L2-L4 lumbar spine and the right femoral neck were measured by using dual energy X-ray absorptiometry (DEXA). SOS of the right calcaneus was measured by using ultrasound bone densitometry. Pearson's correlation coefficient (r) and level of significance (p) were used to evaluate the correlations between measurements. Lumbar BMD was highly correlated with femoral BMD (r=0.81). Lumbar and femoral BMDs exhibited similar comparable negative correlations with age (r=-0.52 and r=-0.55). A moderate negative correlation was found between calcaneal SOS and age (r=-0.45). Calcaneal SOS was significantly correlated with lumbar and femoral BMDs, with a higher correlation with femoral BMD rather than with lumbar BMD (r=0.54 and r=0.62). However, calcaneal SOS may not be an optimum index for the estimation of BMD of the most important fracture sites, such as the lumbar and the femur, because it showed lower correlations with lumbar and femoral BMDs compared to that with calcaneal BMD. Therefore, the development of a quantitative ultrasound technology for the direct measurement of acoustic properties at the lumbar and the femur is required to estimate BMD of these sites more accurately.