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CURATOR

PhD student, The University of Nottingham Malaysia Campus

PINBOARD SUMMARY

Assessing musculoskeletal health in postmenopausal women using portable equipments

Osteosarcopenia (OS) is a term used to describe the concurrent presence of low bone mass (osteoporosis) and low muscle mass (sarcopenia) in an individual, and both have been found to share common pathophysiology. Some of the consequential symptoms of being postmenopaused are reduced bone quality and muscle mass/strength. Therefore, a screening of musculoskeletal health is important to allow early detection of abnormalities in the above and also timely intervention. Several studies have found that higher prevalence of musculoskeletal aches and fatigue were reported among Asian women compared to Caucasian women. Currently, data on musculoskeletal health in older Malaysian women is lacking. Therefore, in this study, we assessed musculoskeletal health in postmenopausal Malay women to screen for risk of sarcopenia and osteoporosis. Postmenopausal Malaysian Malay women (56.9±6.0 years, n=26) were recruited. Bone health was assessed by calcaneal quantitative ultrasound (SAHARA, Hologic Inc, USA); Hand grip strength was measured using North Coast Hydraulic Hand Dynamometer. Body composition was measured using 8-points bio-electric impedance (InBody 230, Biospace Co. Ltd.). Physical performance was assessed using modified Short Physical Performance Battery test. Osteopenia/osteoporosis was defined by WHO (World Health Organization) standards (T scores <-1 and ≤-2.5 respectively).

25 ITEMS PINNED

Association of LRP5 genotypes with osteoporosis in Tunisian post-menopausal women.

Abstract: Osteoporosis is a highly heritable trait. Among the genes associated with bone mineral density (BMD), the low-density lipoprotein receptor-related protein 5 gene (LRP5) has been consistently identified in Caucasians. However LRP5 contribution to osteoporosis in populations of other ethnicities remains poorly known.To determine whether LRP5 polymorphisms Ala1330Val and Val667Met are associated with BMD in North Africans, these genotypes were analyzed in 566 post-menopausal Tunisian women with mean age of 59.5 ± 7 .7 years, of which 59.1% have low bone mass (T-score<-1 at spine or hip).In post-menopausal Tunisian women, 1330Val was weakly associated with reduced BMD T-score at lumbar spine (p=0.047) but not femur neck. Moreover, the TT/TC genotypes tended to be more frequent in women with osteopenia and osteoporosis than in women with normal BMD (p=0.066). Adjusting for body size and other potential confounders, LRP5 genotypes were no longer significantly associated with aBMD at any site.The less common Val667Met polymorphism showed no association with osteoporosis. The Ala1330Val polymorphism is weakly associated with lower lumbar spine bone density and osteopenia/osteoporosis in postmenopausal Tunisian women. These observations expand our knowledge about the contribution of LRP5 genetic variation to osteoporosis risk in populations of diverse ethnic origin.

Pub.: 03 Jun '14, Pinned: 26 Aug '17

The role of dietary protein and vitamin D in maintaining musculoskeletal health in postmenopausal women: a consensus statement from the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO).

Abstract: From 50 years of age, postmenopausal women are at an increased risk of developing sarcopenia and osteoporosis as a result of deterioration of musculoskeletal health. Both disorders increase the risk of falls and fractures. The risk of developing sarcopenia and osteoporosis may be attenuated through healthy lifestyle changes, which include adequate dietary protein, calcium and vitamin D intakes, and regular physical activity/exercise, besides hormone replacement therapy when appropriate. Protein intake and physical activity are the main anabolic stimuli for muscle protein synthesis. Exercise training leads to increased muscle mass and strength, and the combination of optimal protein intake and exercise produces a greater degree of muscle protein accretion than either intervention alone. Similarly, adequate dietary protein intake and resistance exercise are important contributors to the maintenance of bone strength. Vitamin D helps to maintain muscle mass and strength as well as bone health. These findings suggest that healthy lifestyle measures in women aged >50 years are essential to allow healthy ageing. The European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO) recommends optimal dietary protein intake of 1.0-1.2g/kgbodyweight/d with at least 20-25g of high-quality protein at each main meal, with adequate vitamin D intake at 800IU/d to maintain serum 25-hydroxyvitamin D levels >50nmol/L as well as calcium intake of 1000mg/d, alongside regular physical activity/exercise 3-5 times/week combined with protein intake in close proximity to exercise, in postmenopausal women for prevention of age-related deterioration of musculoskeletal health.

Pub.: 02 Aug '14, Pinned: 26 Aug '17

Bone mineral density is not associated with musculoskeletal pain in postmenopausal Korean women aged ≥50 years.

Abstract: Although many studies reported improvement of back pain after osteoporosis treatment, there is insufficient evidence to determine whether osteoporosis is painful. We investigated whether bone mineral density correlated with musculoskeletal pain in postmenopausal Korean women aged ≥50 years. Data for postmenopausal women aged ≥50 years were obtained from the fifth Korea National Health and Nutrition Examination Survey database. Demographics, Kellgren-Lawrence grade, and numeric rating scale for pain in the hip and knee joints, presence of back pain, and activity level were analyzed. Only subjects with dual-energy X-ray absorptiometry scans and hip and knee radiographs were included. Those with malignancy, pain medication use, or a history of fragility fractures were excluded. After univariate analysis, multiple linear regression analysis was performed to examine the significant factors correlated with the degree of hip and knee pain. Binary logistic regression analysis was performed to identify factors significantly associated with the presence of back pain. In total, 387 women were included in the data analysis. Age (p = 0.005) was the only significant factor correlated with the intensity of hip pain, while Kellgren-Lawrence grade (p < 0.001) was the only significant factor correlated with knee pain intensity in multiple regression analysis. Binary logistic regression analysis showed that age (p = 0.002) was the only significant factor associated with the presence of back pain. Musculoskeletal pain was not affected by or associated with the bone mineral density (BMD) of the affected body part in postmenopausal Korean women aged ≥50 years after adjusting for the degree of osteoarthritis.

Pub.: 08 Oct '14, Pinned: 26 Aug '17

Treatment of Vitamin D Insufficiency in Postmenopausal Women: A Randomized Clinical Trial.

Abstract: Experts debate optimal 25-hydroxyvitamin D (25[OH]D) levels for musculoskeletal health.To compare the effects of placebo, low-dose cholecalciferol, and high-dose cholecalciferol on 1-year changes in total fractional calcium absorption, bone mineral density, Timed Up and Go and five sit-to-stand tests, and muscle mass in postmenopausal women with vitamin D insufficiency.This randomized, double-blind, placebo-controlled clinical trial was conducted at a single center in Madison, Wisconsin, from May 1, 2010, through July 31, 2013, and the final visit was completed on August 8, 2014. A total of 230 postmenopausal women 75 years or younger with baseline 25(OH)D levels of 14 through 27 ng/mL and no osteoporosis were studied.Three arms included daily white and twice monthly yellow placebo (n=76), daily 800 IU vitamin D3 and twice monthly yellow placebo (n=75), and daily white placebo and twice monthly 50,000 IU vitamin D3 (n=79). The high-dose vitamin D regimen achieved and maintained 25(OH)D levels≥30 ng/mL.Outcome measures were 1-year change in total fractional calcium absorption using 2 stable isotopes, bone mineral density and muscle mass using dual energy x-ray absorptiometry, Timed Up and Go and five sit-to-stand tests, functional status (Health Assessment Questionnaire), and physical activity (Physical Activity Scale for the Elderly), with Benjamini-Hochberg correction of P values to control for the false discovery rate.After baseline absorption was controlled for, calcium absorption increased 1% (10 mg/d) in the high-dose arm but decreased 2% in the low-dose arm (P = .005 vs high-dose arm) and 1.3% in the placebo arm (P = .03 vs high-dose arm). We found no between-arm changes in spine, mean total-hip, mean femoral neck, or total-body bone mineral density, trabecular bone score, muscle mass, and Timed Up and Go or five sit-to-stand test scores. Likewise, we found no between-arm differences for numbers of falls, number of fallers, physical activity, or functional status.High-dose cholecalciferol therapy increased calcium absorption, but the effect was small and did not translate into beneficial effects on bone mineral density, muscle function, muscle mass, or falls. We found no data to support experts' recommendations to maintain serum 25(OH)D levels of 30 ng/mL or higher in postmenopausal women. Instead, we found that low- and high-dose cholecalciferol were equivalent to placebo in their effects on bone and muscle outcomes in this cohort of postmenopausal women with 25(OH)D levels less than 30 ng/mL.clinicaltrials.gov Identifier: NCT00933244.

Pub.: 04 Aug '15, Pinned: 26 Aug '17

Dietary Protein and Vitamin D Intake and Risk of Falls: A Secondary Analysis of Postmenopausal Women from the Study of Osteoporotic Fractures.

Abstract: More than 90% of hip fractures in older Americans result from a fall. Inadequate intake of dietary protein and vitamin D are common in older adults, and diets in low these could contribute to loss of muscle mass and strength or coordination, in turn increasing the risk of falling. The objective of the study was to evaluate the relationship between protein and vitamin D intake with the occurrence of falls in older women in the Study of Osteoporotic Fracture, a prospective cohort of more than 4000 postmenopausal women participating from January 1997 to September 1998. Incident falls were ascertained for one year. Protein and vitamin D intake was assessed by a food frequency questionnaire; associations with a reported fall were estimated with logistic regression, adjusted for fall-related covariates and energy. Protein and vitamin D were modeled separately because of high correlation (rho = 0.55, P < 0.001). A total of 1429 women reported a fall within one year. In separate, unadjusted models dietary protein (per 1 g/kg increase) and vitamin D (per 100 International Unit (IU) increase) significantly increased the odds ratio (OR) of falling (OR 1.35 95% CI 1.15-1.59, OR 1.11 95% CI 1.03-1.19, respectively). Once fall-related covariates were added to each model, dietary protein and vitamin D were noncontributory to falls. While we could find no direct association between vitamin D and protein intake and fall prevention, adequate intake of these two nutrients are critical for musculoskeletal health in older adults.

Pub.: 13 Aug '15, Pinned: 26 Aug '17

Effect of isolated vitamin D supplementation on the rate of falls and postural balance in postmenopausal women fallers: a randomized, double-blind, placebo-controlled trial.

Abstract: To evaluate the effect of isolated vitamin D supplementation (VITD) on the rate of falls and postural balance in postmenopausal women fallers.In this double-blind, placebo-controlled trial, 160 Brazilian younger postmenopausal women were randomized into two groups: VITD group, vitamin D3 supplementation 1,000 IU/day/orally (n = 80) and placebo group (n = 80). Women with amenorrhea at least 12 months, age 50 to 65 years, and a history of falls (previous 12 months) were included. Those with neurological or musculoskeletal disorders, vestibulopathies, drugs use that could affect balance and osteoporosis were excluded. The intervention time was 9 months. Postural balance was assessed by stabilometry (computerized force platform) and investigation on the occurrence/recurrence of falls was performed by interviews. The plasma concentration of 25-hydroxyvitamin D [25(OH)D] was measured by high-performance liquid chromatography. Statistical analysis was achieved by intention-to-treat, using analysis of variance, Student's t test, Tukey test, chi-square, and logistic regression.After 9 months, mean values of 25(OH)D increased from 15.0 ± 7.5 ng/mL to 27.5 ± 10.4 ng/mL (+45.4%) in the VITD group, and decreased from 16.9 ± 6.7 ng/mL to 13.8 ± 6.0 ng/mL (-18.5%) in the placebo group (P < 0.001). The occurrence of falls was higher in the placebo group (+46.3%) with an adjusted risk of 1.95 (95% confidence interval [CI] 1.23-3.08) times more likely to fall and 2.80 (95% CI 1.43-5.50) times higher for recurrent falls compared to the VITD group (P < 0.001). There was reduction in body sway by stabilometry, with lower amplitude of antero-posterior (-35.5%) and latero-lateral (-37.0%) oscillation, only in the VITD group (P < 0.001).In Brazilian postmenopausal women fallers, isolated vitamin D supplementation for 9 months resulted in a lower incidence of falls and improvement in postural balance.

Pub.: 12 Nov '15, Pinned: 26 Aug '17

The relationship of severe health disorders with bone loss, grip strength, and mobility in postmenopausal women - a 15-year follow-up study.

Abstract: To investigate the relationships of severe health disorders (SHD) with bone loss, grip strength (GS) and mobility in postmenopausal women.The study sample consisted of 2227 Finnish women (mean age 53.2) from the Kuopio Osteoporosis Risk Factor and Prevention (OSTPRE) cohort. Postal inquiries and clinical measurements were completed during the 15-year follow-up at 5-year intervals between 1989 and 2004. Femoral neck bone mineral density (BMD) and GS were measured. Life-style factors and mobility were obtained via postal inquiries. Work disability pension according to the ICD-9 was an indicator of a SHD.At the baseline 242 women had SHD, 506 got late SHD during 1989-1995, whereas 1479 women had none until 1996. The women with baseline SHD had higher annual bone loss (0.44%) than those without SHD (0.34%) (p < 0.05), those with late SHD (0.39%) no difference was seen. Bone loss was highest with respiratory diseases, but BMD was lowest throughout the follow-up in nervous and sense organ diseases. Lower GS and mobility was also associated with SHD.Effects of SHDs on BMD, GS, and mobility are disease-specific. Thus, rehabilitation should be encouraged in postmenopausal women with SHD, especially in case of diseases of respiratory and nervous system. Implications for Rehabilitation Osteoporosis, muscle strength and co-morbidity Women with severe health disorders (SHD) leading to work disability have impaired musculoskeletal health. Active monitoring of the musculoskeletal health is advised for those with SHD. Women with SHD may benefit from rehabilitative treatment in order to avoid complications of musculoskeletal impairments.

Pub.: 24 Dec '15, Pinned: 26 Aug '17

Sequences of Regressions Distinguish Nonmechanical from Mechanical Associations between Metabolic Factors, Body Composition, and Bone in Healthy Postmenopausal Women.

Abstract: There is increasing recognition of complex interrelations between the endocrine functions of bone and fat tissues or organs.The objective was to describe nonmechanical and mechanical links between metabolic factors, body composition, and bone with the use of graphical Markov models.Seventy postmenopausal women with a mean ± SD age of 62.3 ± 3.7 y and body mass index (in kg/m(2)) of 24.9 ± 3.8 were recruited. Bone outcomes were peripheral quantitative computed tomography measures of the distal and diaphyseal tibia, cross-sectional area (CSA), volumetric bone mineral density (vBMD), and cortical CSA. Biomarkers of osteoblast and adipocyte function were plasma concentrations of leptin, adiponectin, osteocalcin, undercarboxylated osteocalcin (UCOC), and phylloquinone. Body composition measurements were lean and percent fat mass, which were derived with the use of a 4-compartment model. Sequences of Regressions, a subclass of graphical Markov models, were used to describe the direct (nonmechanical) and indirect (mechanical) interrelations between metabolic factors and bone by simultaneously modeling multiple bone outcomes and their relation with biomarker outcomes with lean mass, percent fat mass, and height as intermediate explanatory variables.The graphical Markov models showed both direct and indirect associations linking plasma leptin and adiponectin concentrations with CSA and vBMD. At the distal tibia, lean mass, height, and adiponectin-UCOC interaction were directly explanatory of CSA (R(2) = 0.45); at the diaphysis, lean mass, percent fat mass, leptin, osteocalcin, and age-adiponectin interaction were directly explanatory of CSA (R(2) = 0.49). The regression models exploring direct associations for vBMD were much weaker, with R(2) = 0.15 and 0.18 at the distal and diaphyseal sites, respectively. Lean mass and UCOC were associated, and the global Markov property of the graph indicated that this association was explained by osteocalcin.This study, to our knowledge, offers a novel approach to the description of the complex physiological interrelations between adiponectin, leptin, and osteocalcin and the musculoskeletal system. There may be benefits to jointly targeting both systems to improve bone health.

Pub.: 11 Mar '16, Pinned: 26 Aug '17

Effect of resistance training with elements of stretching on body composition and quality of life in postmenopausal women.

Abstract: Physical activity in elderly persons contributes to prevention and treatment of chronic disease and, through its influence on the musculoskeletal system, increases physical capability and improves mental function.Aim of the study was to assess the effect of resistance training with elements of stretching on body composition and quality of life in women of postmenopausal age.Thirty-eight postmenopausal women aged 62.5 ±5.8 years were randomly divided into two groups. One group participated in an 8-week training program (60 minutes, twice weekly; 4 MET [metabolic equivalent] 2 hours/week). The second group performed no training. A comparison was made of body composition and quality of life (SF-36 Health Survey) prior to and after 8 weeks of training.In the training group, after 8 weeks there was a significant reduction in body fat (in%; p = 0.028), and an increase in fat-free mass (in%; p = 0.025) and total body water (in%; p = 0.021), which indicates increased muscle mass. Furthermore, there were statistically significant differences in the assessment of quality of life in physical (role-physical [RP], bodily pain [BP], general health [GH] scales; p < 0.005) and mental health (vitality [VT] scale; p = 0.05). In the non-exercising group no changes were observed in features examined in the initial and final test.Resistance training with elements of stretching in postmenopausal women improved body composition to achieve a reduction in risk factors associated with excess fatty tissue and muscle mass deficiency. It raises the quality of life in terms of both physical and mental function.

Pub.: 21 Apr '16, Pinned: 26 Aug '17

Increased low back pain prevalence in females than in males after menopause age: evidences based on synthetic literature review.

Abstract: Female sex hormones play an important role in the etiology and pathophysiology of a variety of musculoskeletal degenerative diseases. Postmenopausal women show accelerated disc degeneration due to relative estrogen deficiency. This literature review aims to validate or falsify this hypothesis, i.e., while overall females have higher prevalence of low back pain (LBP) across all age groups, this male vs. female difference in LBP prevalence further increases after female menopause age. The literature search was performed on PubMed on January 2, 2016. The search word combination was (low back pain) AND prevalence AND [(males OR men) AND (females OR women)]. The following criteria were taken to include the papers for synthetic analysis: (I) only English primary literatures on nonspecific pain; (II) only prospective studies on general population, but not population with occupational LBP causes, of both males and female subjects studied using the same LBP criterion, ages-specific information available, and males and female subjects were age-matched; (III) studies without major quality flaws. In total 98 studies with 772,927 subjects were analyzed. According to the information in the literature, participant subjects were divided into four age groups: (I) school age children group: 6-19 years; (II) young and middle aged group: 20-50 years; (III) mixed age group: data from studies did not differentiate age groups; (IV) elderly group: ≥50 years old. When individual studies were not weighted by participant number and each individual study is represented as one entry regardless of their sample size, the median LBP prevalence ratio of female vs. males was 1.310, 1.140, 1.220, and 1.270 respectively for the four age groups. When individual studies were weighted by participant number, the LBP prevalence ratio of female vs. males was 1.360, 1.127, 1.185, and 1.280 respectively for the four groups. The higher LBP prevalence in school age girls than in school age boys is likely due to psychological factors, female hormone fluctuation, and menstruation. Compared with young and middle aged subjects, a further increased LBP prevalence in females than in males was noted after menopause age.

Pub.: 18 May '16, Pinned: 26 Aug '17

Musculoskeletal pain among postmenopausal women in Nigeria: Association with overall and central obesity

Abstract: Publication date: June 2016 Source:Hong Kong Physiotherapy Journal, Volume 34 Author(s): Omoyemi O. Ogwumike, Ade Fatai Adeniyi, Oluwakemi O. Orogbemi Background Menopausal women experience musculoskeletal changes such as muscle atrophy, muscle weakness and osteoporosis—symptoms associated with advancing age coupled with depletion of the female sex hormone, estrogen. Estrogen is important in the maintenance of the integrity of the musculoskeletal system and its reduction in the circulation due to menopausal transition results in reduced resting metabolic rate, lowered energy expenditure, increase in fat mass, and central adipose tissue accumulation. Objective This study investigated the prevalence of musculoskeletal pain (MSP) in postmenopausal women (PMW) in Nigeria. We examined the association of overall and central obesity with complaints of MSP and the screening potential of obesity measures for risk of musculoskeletal problems among PMW in Nigeria. Methods This was a cross-sectional survey of MSP in 310 PMW in Ibadan, Nigeria. MSP was assessed using the Standardized Nordic Musculoskeletal Questionnaire, and overall and central obesity were assessed using body mass index (BMI), waist/height ratio (WHtR), waist circumference, and waist/hip ratio. Data were analysed using descriptive statistics, chi-square test, and logistic regression models with the probability level at p = 0.05. Results Participants were of the modal age group (51–60 years). The highest prevalence rates of MSP were in the lower extremity (189; 61.0%) and the back (164; 52.9%). A direct association was observed between the categories of BMI and lower extremity symptoms (p < 0.05), and the categories of WHtR and waist circumference were associated with back and lower extremity symptoms (p < 0.05). Postmenopausal women had greater odds of reporting MSP across various classes of BMI. WHtR revealed the greatest odds for back (odds ratio = 1.70, 95% confidence interval 1.07–2.75) and lower extremity symptoms (odds ratio = 2.33, 95% confidence interval 1.44–3.78). Conclusion Lower extremity and back pain symptoms were the most prevalent. For overall and central obesity directly associated with MSP, WHtR seemed the best obesity screening tool for MSP in postmenopausal women.

Pub.: 29 May '16, Pinned: 26 Aug '17

Can vitamin D deficiency influence muscle performance in post-menopausal women? A multicenter retrospective study.

Abstract: The presence of the vitamin D receptor (VDR) has been recently demonstrated in human muscle supporting the theory of a role of vitamin D in the proliferation and differentiation of muscle cells. So far only few studies investigated the association between vitamin D and muscle performance in post-menopausal women.To define the functional impact of vitamin D deficiency.Multicenter retrospective study.Five Italian outpatient services of Physical and Rehabilitation Medicine (PRM).Post-menopausal women.We divided the population in two groups based on the threshold of 30 ng/ml as cut-off to define sufficient and insufficient serum levels of 25-hydroxyvitamin D3 [25(OH)D3]. Outcome measures were: appendicular lean mass (ALM); ALM-to-BMI ratio (ALMBMI); total fat mass (FM); visceral adipose tissue (VAT); Hand Grip Strength (HGS); Knee Isometric Extension Strength (KES); Short Physical Performance Battery (SPPB); 4-meter gait speed (4MGS).We analyzed the data records of 401 post-menopausal women (mean age 66.93 ± 8.47 years): 203 with hypovitaminosis D (mean age 66.81 ± 8.11 years) and 198 with normal levels of 25(OH)D3 (mean age 67.04 ± 8.84 years). The analysis showed a significant differences between the two groups in terms of: ALMBMI (0.002), FM (p 0.001), VAT mass (0.010), VAT volume (p =0.006), HGS (p<0.001), KES (p<0.001), SPPB score (p <0.001), percentage of people with a 4MGS≤ 0.8 m/s (p<0.001). Furthermore, there were significant correlations (p<0.001) between serum levels of 25(OH)D3 and HGS (r=0.323), KES (r=0.510), and SPPB sit to stand (r=-0.362) and walking sub-scores (r=-0.312).This multicenter study demonstrated that post-menopausal women with vitamin D deficiency had a significant reduction of appendicular muscle strength and physical performance.This study reported the frequency of hypovitaminosis D in postmenopausal women and its influence on the reduction of muscle mass, strength, and physical performance in a typical population referring to the physiatrist for musculoskeletal disorders.

Pub.: 12 Jul '17, Pinned: 26 Aug '17

Sarcopenic obesity is more closely associated with knee osteoarthritis than is nonsarcopenic obesity: a cross-sectional study.

Abstract: Sarcopenic obesity is a body composition category in which obesity is accompanied by low skeletal muscle mass, offsetting the increase in body weight caused by increased adipose tissue. The purpose of this study was to analyze the association between knee osteoarthritis (OA) and 4 different categories of body composition: normal, sarcopenic nonobesity, nonsarcopenic obesity, and sarcopenic obesity.This was a cross-sectional study using the data from 2,893 participants in the Fifth Korean National Health and Nutrition Examination Survey. Radiographic knee OA was defined as a Kellgren/Lawrence grade of ≥2. Appendicular skeletal muscle mass (ASM) and whole-body fat mass were measured using dual x-ray absorptiometry. Sarcopenia was defined as a skeletal muscle mass index (ASM/body weight [%]) below -2SD of the value in sex-matched young reference groups. Nonsarcopenic obesity was defined as a body mass index (BMI) ≥27.5 kg/m(2) .The prevalence of each body composition category was as follows: 83.5% normal, 4.3% sarcopenic nonobesity, 9.2% nonsarcopenic obesity, and 3.0% sarcopenic obesity. Compared with nonsarcopenic obesity participants, participants with sarcopenic obesity were significantly older, had lower ASM, higher whole-body fat mass, and higher waist circumference. However, there was no significant difference in body weight or BMI. In multivariate analysis, sarcopenic obesity was more closely associated with radiographic knee OA (OR 3.51 [95% confidence interval (95% CI) 2.15-5.75]) than was nonsarcopenic obesity (OR 2.38 [95% CI 1.80-3.15]). Sarcopenic nonobesity showed no significant association with knee OA.Sarcopenic obesity was more closely associated with knee OA than was nonsarcopenic obesity, although both groups had equivalent body weight. This finding supports the importance of the systemic metabolic effect of obesity in knee OA.

Pub.: 30 Nov '12, Pinned: 26 Aug '17

The differential relationship between fat mass and bone mineral density by gender and menopausal status.

Abstract: Osteoporosis and obesity are important public health problems in an aging society. We investigated the differential impacts of fat on bone mineral density (BMD) according to gender and menopausal status. We analyzed the baseline data of an ongoing observational cohort study, including a total of 502 healthy subjects 20-88 years of age (144 men, 159 premenopausal women, 199 postmenopausal women). Body composition and fat mass were measured using computed tomography and dual energy X-ray absorptiometry (DXA). BMD was measured at lumbar spines using DXA. In men and postmenopausal women, there was no significant correlation between fat and bone parameters after adjusting for age and body weight. However, in premenopausal women, BMD had significant negative correlations with waist circumference, total fat area, subcutaneous fat area, appendicular fat mass and percentage fat mass after adjusting for age and body weight. Furthermore, only in premenopausal women, the subjects with the highest quartile of percentage fat mass had the lowest BMD even after adjusting for confounding factors including age, body weight, physical activity, alcohol use and smoking history. Multiple linear regression analysis showed that percentage fat mass was a significant negative decisive factor for BMD in premenopausal women. Our study showed the differential relationship between fat mass and BMD according to gender and menopausal status. Only in premenopausal women did fat mass have a significant negative effect on bone mass. This result suggests the importance of reducing fat mass in order to achieve peak bone mass in young adult women.

Pub.: 07 Jun '11, Pinned: 26 Aug '17

Prevalence of sarcopenia and sarcopenic obesity in Korean adults: the Korean sarcopenic obesity study.

Abstract: To examine the prevalence of sarcopenia and sarcopenic obesity (SO) as defined by different indices, including appendicular skeletal muscle mass (ASM)/height(2), skeletal muscle mass index (SMI) and residuals for Korean adults, and to explore the association between SO and metabolic syndrome.Our study sample included 526 participants (328 women, 198 men) for whom complete data on body composition were collected using available dual X-ray absorptiometry. Modified National Cholesterol Education Program Adult Treatment Panel III criteria were used to identify the individuals with metabolic syndrome.The prevalence of sarcopenia and SO is higher in older adults. Using two s.d. of ASM/height(2) below reference values from young, healthy adults as a definition of sarcopenia, the prevalence of sarcopenia and SO was 6.3% and 1.3% in older (> or =60 years) men and 4.1% and 0.8% in older women, respectively. The prevalence of sarcopenia using the residuals method was 15.4% in older men and 22.3% in older women. In addition, using two s.d. of SMI, the prevalence of sarcopenia and SO was 5.1% and 5.1%, respectively, in older men and 14.2% and 12.5%, respectively, in older women. Among women, SO subjects defined by the SMI had three times the risk of metabolic syndrome (odds ratios (OR)=3.24, 95% confidence interval (CI)=1.21-8.66) and non-sarcopenic obese subjects had approximately twice the risk of metabolic syndrome (OR=2.17, 95% CI=1.22-3.88) compared with normal subjects. Similar trends were observed in men.The prevalence and cutoff values of sarcopenia and SO in the Korean population were evaluated using different methods. Among the different indices of sarcopenia and SO, SO only defined using the SMI was associated with the risk of metabolic syndrome. As the Korean population gets older and more obese, the problematics of SO need to be elucidated.

Pub.: 01 Jul '09, Pinned: 26 Aug '17

Percentage of the population at high risk of osteoporotic fracture in South Korea: analysis of the 2010 Fifth Korean National Health and Nutrition Examination survey data.

Abstract: Osteoporosis and high-risk osteopenia (high-risk of osteoporotic fractures) are highly prevalent in South Korean postmenopausal women and men aged 50 years and over.This study determined the percentages of the population at high risk of osteoporotic fractures according to the World Health Organization (WHO) criteria and the Fracture Risk Assessment (FRAX) model.Data collected from the 2010 Fifth Korean National Health and Nutrition Examination Survey, a cross-sectional survey of the general South Korean general population, were analyzed. The percentages of the population with high-risk osteopenia according to the US National Osteoporosis Foundation (NOF) and Japanese treatment guidelines were subsequently determined and compared.Based on the WHO criteria and FRAX model, 37.7% of the menopausal women and 12.7% of the men aged 50 years and older are at high risk of osteoporotic fracture. According to the Japanese and NOF guidelines, 10.9 (10.6% of men and 11.2% of women) and 10.7% (10.6% of men and 10.9% of women), respectively, of the study population with osteopenia are at high risk of fracture. By age group, 49.3% of Korean women aged 55 years and older, 67.7% of Korean women aged 65 years and older, and 33.5% of Korean men aged 75 years and older are at high risk.As a very large percentage of the South Korean postmenopausal population has osteoporosis or high-risk osteopenia, greater effort at identifying and treating this population should be expended to prevent osteoporotic fracture.

Pub.: 19 Dec '13, Pinned: 26 Aug '17