scholarly journals Dominant and non-dominant arm bone mineral density of racquet athletes

2021 ◽  
Keyword(s):  
Bone Mineral ◽  
Proximal Humerus ◽  
Humeral Shaft ◽  
Mineral Density ◽  
Male Athletes ◽  
X Ray ◽  
Racquet Sports ◽  
Left Handedness ◽  
Significant Difference ◽  
The Right

Background and Purpose: The upper extremities, especially the arms and shoulders, are used intensively in racquet sports. In this work, our primary aim is to compare bone mineral densities (BMDs) between dominant and non-dominant arms in racquet athletes. We then compare BMDs between athletes playing racquet sports and non-athletes. Methods: A total of 24 racquet sports male athletes active for at least 10 years (age, 22.46 ± 2.41 years) and 22 non-athletes (age, 21.45 ± 1.74 years) voluntarily participated in this study. The BMDs of the humerus, radius, and ulna of the dominant and non-dominant arms of both groups were measured by dual energy X-ray absorptiometry. Results: The BMDs of the proximal humerus and humeral shaft of dominant arms were significantly higher than those of non-dominant arms in athletes (19.85% vs. 12.02%); while statistically, no statistically significant difference in BMDs was found in non-athletes (P > 0.05). The BMDs of the dominant proximal humerus and humeral shaft of athletes were higher than those of non-athletes (P < 0.05). Non-dominant arm BMDs did not differ between the two groups (P > 0.05). Conclusion: BMD differences observed between the right and left arms of athletes indicate that, rather than confounding factors like genotype, right-/left-handedness, participation in racquet sports may influence BMDs in the related extremities.

scholarly journals Choroidal Thickness in Relation to Bone Mineral Density with Swept-Source Optical Coherence Tomography

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Lin Jiang ◽  
Yiwen Qian ◽  
Qingjian Li ◽  
Jing Jiang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Optical Coherence Tomography ◽  
Bone Mineral ◽  
Choroidal Thickness ◽  
Density Lipoprotein ◽  
Normal Subjects ◽  
Mineral Density ◽  
Swept Source ◽  
X Ray ◽  
Significant Difference

Purpose. To assess whether bone mineral density, indicated by the lumbar X-ray scan, is related to changes in choroid thickness in normal subjects. Methods. This study included 355 patients with decreased bone mineral density and 355 age- and sex-matched healthy subjects. Lumbar BMD was measured by dual-energy X-ray absorptiometry (DXA). Choroidal thickness was measured using swept-source optical coherence tomography (SS-OCT). Blood pressure (BP), cholesterol, triglyceride (TG), high-density lipoprotein (HDL), and low-density lipoprotein (LDL) were recorded on the same day. Results. There was a significant difference in average choroidal thickness between low BMD subjects and normal subjects p = 0.003 . The BP, cholesterol, triglyceride, HDL, and LDL showed no significant difference between the two groups. The correlations showed that average choroidal thicknesses were associated with BMD in the entire population (r = 0.125, p = 0.001 ). Conclusion. The choroidal thickness is thinner in low BMD populations compared with normal individuals. There is a strong positive correlation of choroidal thickness with BMD, regardless of age, sex, and other demographic and clinical factors.

scholarly journals Semi-automated approach in the evaluation of low bone mass using clavicle radiogrammetry technique

2018 ◽  
Vol 7 (2.8) ◽  
pp. 169
Author(s):  
U Snekhalatha ◽  
D Ashok Kumar ◽  
Padma Javasan
Keyword(s):  
Bone Mineral Density ◽  
Bone Mass ◽  
Bone Mineral ◽  
Cortical Thickness ◽  
Total Population ◽  
Low Bone Mass ◽  
Mineral Density ◽  
X Ray ◽  
Post Menopausal ◽  
The Right

Background: Low bone mineral density increasing with age is a universally observed phenomenon. This leads to osteoporosis, which is a regressive change that occurs in the bone and it is diagnosed before the occurrence of fractures. The dual energy x -ray absorptiometry (DXA) is considered to be the standard measurement for the detection of bone mineral density (BMD).Objectives: To measure the various bone mass indices in the clavicle bone by radiogrammetric method from a posterior-to-anterior (PA) view of chest digital X-ray using semi- automated method.Methods: Forty women whose mean age was found to be 46.05±15.53 years were included in this study. For the total population (n=40), the right femur BMD was acquired by DXA scanner. The digital chest radiographs were taken for all the subjects. In all cases, the geometrical variables such as periosteal width (CLR-D), endosteal width (CLR-d), cortical thickness (CLR-CT) and percentage cortical thickness %(CLR-CT) were measured in the right clavicle bone region by semi-automated method approach developed in MATLAB software.Results: The CLR-CT (r=0.77) as well as with % CLR-CT (r=0.72) has provided statistically significant correlation (p < 0.01) with the total hip BMD in the total population studied. The pre-menopausal and post-menopausal of the studied population demonstrated a high significance value of (p < 0.01).Conclusion: The semi-automated measurement of low bone mass indices in clavicle radiogrammetry will be useful in the evaluation of low bone mass in post-menopausal women and elderly aged population. This method can be used as a screening tool for mass population, especially in rural India.

THE EFFECT OF CONTROLLED DYNAMIZATION ON REGENERATE BONE HEALING IN CALLOTASIS

2000 ◽  
Vol 04 (01) ◽  
pp. 9-20 ◽  
Author(s):  
In Ho Choi ◽  
Chin Youb Chung ◽  
Tae-Joon Cho ◽  
Kyu Won Choi ◽  
Jae Bong Choi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bone Mineral Density ◽  
Uniaxial Compression ◽  
Bone Mineral ◽  
Bone Healing ◽  
Compression Testing ◽  
Mineral Density ◽  
Significant Difference ◽  
Control Bone ◽  
The Right

We investigated whether controlled dynamization enhanced regenerate bone healing in callotasis of the tibia in 12 adult mongrel dogs. An average of 2 cm (≒ 10%) lengthening was obtained. The left hindlimb was allowed dynamization of 1 mm, 2 mm, and 3 mm in magnitude when 1 cm (≒ 5%) of lengthening was achieved, whereas the right hindlimb was not dynamized and served as a control. Bone mineral density (BMD) of the regenerate bone was measured periodically until nine weeks after the end of distraction. After sacrifice, uniaxial compression testing was performed. Relative BMD ratio and mechanical properties of the regenerate bone were significantly higher in the dynamization group than in the nondynamization group; no significant difference was found among dynamization subgroups, however. We conclude that 1 mm to 3 mm of elastic dynamization accelerates regenerate bone healing in callotasis of the canine tibia.

Peripheral and Central Bone Mineral Density in Charcot’s Neuroarthropathy Compared in Diabetic and Nondiabetic Populations

2012 ◽  
Vol 102 (3) ◽  
pp. 213-222 ◽  
Author(s):  
Robert M. Greenhagen ◽  
Dane K. Wukich ◽  
Rachel H. Jung ◽  
Vassilios Vardaxis ◽  
Robert M. Yoho
Keyword(s):  
Diabetes Mellitus ◽  
Bone Mineral Density ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Control Group ◽  
Mineral Density ◽  
X Ray ◽  
Serum Vitamin D ◽  
Significant Difference ◽  
Patients With Diabetes

Background: This prospective study was performed to compare calcaneal and lumbar bone mineral density (BMD) in individuals with and without diabetes mellitus. We compared bone density with the time from onset of Charcot’s neuroarthropathy (CN) in patients with unilateral, nonoperative, reconstructive-stage CN. The final purpose was to investigate the role that sex, age, and serum vitamin D level may have in osseous recovery. Methods: Thirty-three individuals were divided into three groups: controls and patients with diabetes mellitus with and without CN. Peripheral instantaneous x-ray imaging and dual-energy x-ray absorptiometry were performed. Results: The calcaneal BMD of patients with diabetes mellitus and CN was lower than that of the control group (P &lt; .01) but was not significantly lower than that of patients with diabetes mellitus alone. There was no statistically significant difference in lumbar T-scores between groups. Women demonstrated lower BMD than did men (P = .02), but patients 60 years and older did not demonstrate significantly lower BMD than did patients younger than 60 years (P = .135). A negative linear relationship was demonstrated between time and BMD in patients with CN. Conclusions: The results of this study suggest that lumbar BMD does not reflect peripheral BMD in patients with diabetes mellitus and reconstructive-stage CN. This study has clinical implications when reconstructive osseous surgery is planned in patients with CN. (J Am Podiatr Med Assoc 102(3): 213–222, 2012)

scholarly journals AB0609 RADIOFREQUENCY ECHOGRAPHIC MULTI-SPECTROMETRY FOR THE ASSESSMENT OF BOTH FEMORA IN PREGNANT WOMEN

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1340.1-1340
Author(s):  
E. Kirilova ◽  
N. Kirilov ◽  
S. Vladeva
Keyword(s):  
Bone Mineral Density ◽  
Femoral Neck ◽  
Pregnant Women ◽  
Bone Mineral ◽  
Dual Energy ◽  
Z Score ◽  
Mineral Density ◽  
X Ray ◽  
The Mean ◽  
The Right

Background:Radiofrequency Echographic Multi-Spectrometry (REMS) is a non-ionizing innovative approach for the assessment of REMS-based bone mineral density (BMD) of the axial skeleton. The principle of the REMS technology is based on the analysis of native raw unfiltered ultrasound signals during an echographic scan of the lumbar spine or the femoral neck [1]. Several studies demonstrated the high concordance with dual energy X-ray absorptiometry (DXA) in terms of measured BMD with this novel technology [2,3]. In previous published literature it was envisaged to apply this technology for the examination of the axial bone density in pregnant women. Pregnancy-associated bone loss has been demonstrated as decreased bone mineral density (BMD) in previous studies [4].Objectives:The aim of the current study is to compare the BMD values of both femora between pregnant and non-pregnant women matched for age and BMI using the novel REMS technology.Methods:Of total fifty women twenty pregnant women (40%) and thirty non-pregnant women (60%) were included in the study. The mean age of the pregnant women was 32 years ± 5 standard deviations (SD), (range 25-41 years) and the mean age of the non-pregnant women was 30 years ± 6 standard deviations (SD), (range 24-39 years). REMS approach was used to assess REMS-based BMD and REMS-based Z-score values of the femoral neck. Furthermore, body mass index (BMI) and gestational age in weeks were evaluated.Results:The mean BMI of the pregnant women was 26 kg/m2 ± 7 kg/m2 (range 14 kg/m2-42 kg/m2) and those of the non-pregnant women was 25 kg/m2 ± 5 kg/m2 (range 16 kg/m2-35 kg/m2). The mean gestational age was 20 weeks’ gestation ± 5 weeks’ gestation (range 13-27 weeks’ gestation). REMS-based mean BMD of the left femoral neck of the pregnant women was 0.793 g/cm2 ± 0.167 g/cm2 (range 0.563 g/cm2-1.154 g/cm2). REMS-based mean BMD of the right femoral neck of the pregnant women was 0.828 g/cm2 ± 0.153 g/cm2 (range 0.570 g/cm2-1.161 g/cm2). After comparing left femoral neck BMD with the right femoral neck BMD of the pregnant women, we found a linear correlation (R=0.764). Left femoral neck BMD value (0.793 g/cm2) of the pregnant women was significantly lower than those of the non-pregnant women (0.854 g/cm2), p=0.002. The mean left femoral Z-score of the pregnant women (-0.1 SD with range -2.5 SD-2.9 SD) was also significantly lower compared to those of the non-pregnant women (1.2 SD with range -1.5 SD-3.1 SD), p=0.003.Conclusion:This is the first study which provides data about BMD and Z-score values of both femora in pregnant women assessed with the radiation-free REMS technology. Pregnant women demonstrated significantly lower femoral neck BMD values and Z-scores compared to those of the non-pregnant women. Innovative REMS method could be very helpful for making decision about the treatment of pregnant women who are at risk of lower BMD due to concomitant diseases and/or treatment associated with osteoporosis.References:[1]Casciaro S, Conversano F, Pisani P, Muratore M. New perspectives in echographic diagnosis of osteoporosis on hip and spine. Clin Cases Miner Bone Metab. 2015; 12(2):142-150.[2]Nikolov M, Nikolov N. AB0908 Assessment of the impact of the lean mass with body composition by dual-energy x-ray absorptiometry on the bone mineral density. Annals of the Rheumatic Diseases 2020; 79:1756.[3]Chakova M., Chernev D., Kashukeeva P., Krustev P., Abedinov F. Lumbar Sympathectomy - Literature Review. International Journal of Science and Research (IJSR) Volume 7 Issue 8, August 2018 ISSN (Online): 2319-7064.[4]Degennaro, V. A.; Cagninelli, G.; Lombardi, F. A. “VP34.12: First assessment of maternal status during pregnancy by means of radiofrequency echographic multi-spectrometry technology”. Ultrasound in Obstetrics & Gynecology. 2020, 56 (S1): 199.Disclosure of Interests:None declared.

Assessment of the mineral density and mineral content of the equine third metacarpal and first phalanx bone by dual energy x-ray absorptiometry

2010 ◽  
Vol 58 (3) ◽  
pp. 317-329 ◽  
Author(s):  
Péter Tóth ◽  
Csaba Horváth ◽  
Viktória Ferencz ◽  
Krisztina Nagy ◽  
Noémi Gligor ◽  
...  
Keyword(s):  
Bone Mineral ◽  
Mineral Content ◽  
Dual Energy ◽  
Mineral Density ◽  
X Ray ◽  
Number Of Patients ◽  
Metacarpal Bones ◽  
The Difference ◽  
The Individual ◽  
The Right

In the first part of this methodological study eleven metacarpi of 9 skeletally normal horses were examined from 4 directions by dual energy x-ray absorptiometry (DXA). The differences between the dorsopalmar-palmarodorsal and lateromedial-mediolateral (opposite sites) bone mineral density (BMD) values were found to be nonsignificant. In the second part of the study the precision of the Norland XR-26 densitometer was tested by measuring 34 metacarpal bones and 34 proximal phalanges, each of them three times, from a single direction. The difference between the individual measurements of the first phalanges and of the metacarpal bones originating from the right or the left side of the same horse were not significant, nor did the age or breed have a significant effect on BMD or bone mineral content (BMC). However, both BMD and BMC are greater in the metacarpal bones than in the proximal phalanges and are higher in geldings than in mares or to stallions, while the BMD or BMC values of mares and stallions did not differ from each other significantly. These data point to the necessity of further BMD studies in a higher number of patients.

Therapeutic Effect of Selected Biomaterials (Mg/Zn/F-CaPs, Administered by Injection) on Bone Properties of Ovariectomized Rats

2006 ◽  
Vol 309-311 ◽  
pp. 243-246 ◽  
Author(s):  
Makoto Otsuka ◽  
Ayako Oshinbe ◽  
Atsuo Ito ◽  
Kuniko Otsuka ◽  
William I. Higuchi ◽  
...  
Keyword(s):  
Therapeutic Effect ◽  
Bone Mineral ◽  
Area Under The Curve ◽  
Ovariectomized Rats ◽  
Control Group ◽  
Mineral Density ◽  
Bone Properties ◽  
Ovx Rats ◽  
Significant Difference ◽  
The Right

The purpose of this study was to evaluate the efficacy of magnesium (Mg), zinc (Zn) and fluoride (F)-containing calcium phosphate compounds (Mg/Zn/F-CaP) in correcting the bone mineral deficiency noted in ovariectomized (OVX) rats. In order to evaluate therapeutic effect of selected Mg/Zn/F-BCP preparations (G2: 1.13%Mg/13.6%Zn/2.5%F, G3:7.76%Mg/1.89%Zn /3.01%F and G4:2.72%Mg/3.75%Zn/1.35%F), suspensions consisting of Mg/Zn/F-CaP preparations and of Zn-TCP (G1: 6.17%Zn) powder were injected in the right thigs of OVX rats for 4 weeks. Injection of Zn-TCP powder suspension in G1 and G2 groups led to the recovery of plasma Zn levels in OVX rats. The area under the curve of plasma Zn for the G2, G1 and Normal (not ovariectomized) control group (GN) groups were significantly lower than those of the group G3, G4 and OVX /untreated control (GC) groups (p<0.05). The bone mineral density (BMD) of the right femur was significantly higher than that of the left in G1, G2, G3 and G4 groups on day 28. However, there was no significant difference in the BMD between the left and right femur in the GC and GN groups.

scholarly journals Status of bone mineral content and body composition in boys engaged in intensive physical activity

2010 ◽  
Vol 67 (5) ◽  
pp. 386-390 ◽  
Author(s):  
Dejan Madic ◽  
Borislav Obradovic ◽  
Miroslav Smajic ◽  
Jelena Obradovic ◽  
Dusan Maric ◽  
...  
Keyword(s):  
Physical Activity ◽  
Bone Mineral Density ◽  
Body Composition ◽  
Bone Mineral ◽  
Soccer Players ◽  
Control Group ◽  
Mineral Density ◽  
Significant Difference ◽  
Prepubertal Boys ◽  
The Right

Background/Aim. It is well known that physical activity has an anabolic effect on bone tissue. But there is a lack of information about the effect of intensive physical activity in childhood, particularly at the prepubertal stage. To examine the influence of training on body composition and bone mineral density we have studied a group of prepubertal soccer players as well as a group of inactive prepubertal boys at the starting phase of their peak bone mass acquisition. Methods. A total of 62 healthy prepubertal boys took part in this study. They were divided into two groups. The first one consisted of 32 soccer players (aged 10.7 ? 0.5 years), who had been playing football for at least 1 year (10-15 h per week). The second group a control group 30 boys (aged 11.2 ? 0.7 years) doing 1.5 h per week physical activity at school. Body composition was assessed by a Body Fat Analyzer 'BES 200 Z'. Bone mineral density measurements of the left and the right calcaneus were done by using ultrasound densitometer 'Sahara' (Hologic, Inc., MA, USA). Results. There were significant differences between soccer players and the control group in fat mass (p = 0.01). Besides, a significant difference was determined between the group of athletes and the control group in bone mineral density of both calcaneal bones (p = 0.01). Conclusion. The results of this study confirm the significant effects of physical activity on reducing body mass and increasing bone density. Considering that football training can be very easily implemented in the broader population of children and young people, which does not apply to many other sports, it should be used more in the prevention of obesity and osteoporosis.

Bone Mineral Density Is Not Related to Osteophyte Formation in Osteoarthritis of the Hip

2010 ◽  
Vol 38 (2) ◽  
pp. 358-361 ◽  
Author(s):  
KUNIHIKO OKANO ◽  
KIYOSHI AOYAGI ◽  
KO CHIBA ◽  
SATORU MOTOKAWA ◽  
TOMOKO MATSUMOTO
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Bone Mineral ◽  
Mineral Density ◽  
Osteoarthritis Of The Hip ◽  
Osteophyte Formation ◽  
X Ray ◽  
Ultradistal Radius ◽  
Significant Difference ◽  
Different Types

Objective.Reports have suggested that bone mineral density (BMD) is higher in patients with osteoarthritis (OA) of the hip than in healthy controls. Various types of OA of the hip caused by osteophyte formation were observed on radiographs during progression to the advanced degenerative stage, and the preoperative type of OA was reported to influence the results of surgical treatment. However, the mechanism underlying the development of different types of OA is still unknown. We measured BMD of patients with hip OA and determined whether higher BMD was observed in patients with osteophyte formation than in those without osteophytes.Methods.We measured BMD of the lumbar spine, radius, and calcaneus using dual-energy x-ray absorptiometry in 88 women who were scheduled to undergo total hip arthroplasty for endstage OA. Hips were evaluated for osteophyte formation using Bombelli’s classification; 31 were graded as atrophic type, 30 as normotrophic, and 27 as hypertrophic. BMD at different skeletal sites were compared among the 3 types of OA.Results.No significant difference in BMD of the lumbar spine, ultradistal radius, mid-radius, or calcaneus was observed among the atrophic, normotrophic, and hypertrophic types of OA.Conclusion.Our data suggest that osteophyte formation is not related to general BMD. Factors other than general bone status, for example the morphology of the hip joint, need to be analyzed to determine the pathomechanism of osteophyte formation in the osteoarthritic hip.

Bone Mineral Density Status of Women with Intellectual Disability

2001 ◽  
Vol 18 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Bernadette L. Foster ◽  
Jeff W. Walkley ◽  
Viviene A. Temple
Keyword(s):  
Bone Mineral Density ◽  
Intellectual Disability ◽  
Lumbar Spine ◽  
Bone Mineral ◽  
Comparison Group ◽  
Dual Energy ◽  
Mineral Density ◽  
X Ray ◽  
Significant Difference ◽  
Status Of Women

The purpose of this study was to describe and compare the bone mineral density of women with intellectual disability (WID) and a comparison group (WOID) matched for age and sex. One hundred and five women, ages 21 to 39, M = 29, were tested for their bone mineral density levels at the lumbar spine and three sites of the proximal femur using dual energy X-ray absorptiometry. No significant difference between groups existed (λ = 0.94, F(4, 98) = 1.68, p = .16, η2 = .06); however, one-sample t tests revealed that bone mineral density for the WID group (n = 35) was significantly lower than zero at the Ward’s triangle (p < .01) and the lumbar spine (p < .05). Approximately one-quarter of WID had low bone density at these two sites, suggesting that WID may be at risk of osteoporotic fracture as they age.

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