INBODY J10 PDF

This study was to investigate mean Z-score of BMD of Korean premenopausal women and also to investigate the relationship between BMD and body composition, such as skeletal muscle SM mass, body fat mass, and abdominal adiposity among healthy Korean premenopausal women in their forties. The mean age was Skeletal muscle mass measured by body composition analyzer of BIA method is a strong correlation factor for BMD especially of hip bone among healthy Korean premenopausal women in their forties. Osteopenia and osteoporosis are much more common in postmenopausal women than in premenopausal women. However maintaining optimal bone mineral density BMD levels during the premenopausal years is important for reducing the risk of osteoporosis and fractures during the postmenopausal years [1] , [2]. The peak bone mass PBM , which is defined as the amount of bony tissue present at the end of the skeletal maturation [3] , is a well known determinant of osteoporotic fracture risk.

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This study was to investigate mean Z-score of BMD of Korean premenopausal women and also to investigate the relationship between BMD and body composition, such as skeletal muscle SM mass, body fat mass, and abdominal adiposity among healthy Korean premenopausal women in their forties. The mean age was Skeletal muscle mass measured by body composition analyzer of BIA method is a strong correlation factor for BMD especially of hip bone among healthy Korean premenopausal women in their forties.

Osteopenia and osteoporosis are much more common in postmenopausal women than in premenopausal women. However maintaining optimal bone mineral density BMD levels during the premenopausal years is important for reducing the risk of osteoporosis and fractures during the postmenopausal years [1] , [2].

The peak bone mass PBM , which is defined as the amount of bony tissue present at the end of the skeletal maturation [3] , is a well known determinant of osteoporotic fracture risk.

The greater their peak bone mass, the lower their risk for osteoporosis later in life. The importance of obtaining high PBM is emphasizing in these days because the mean life expectancy is more increasing. It is well known that the PBM usually obtained until in one's early thirties and thereafter demineralization process is continued. Main factors affecting the PBM are genetic factors such as age and race [4]. However, non genetic factors such as nutrition, physical activity, and behavioral factor including smoking also affect the PBM.

We can increase the PBM by improving the non-genetic factors, therefore continuous exploration about the way to increase PBM by changing the non-genetic factors is important for improving bony health [5].

Among these, physical activity especially regular weight-bearing exercise which can increase muscle mass is the best way to exercise for the healthy bone.

High impact weight bearing exercise is effective on increase of hip BMD and strength [6]. Recent study in premenopausal women also confirmed the impact exercise can improve the BMD [7]. Evidence of the inter-relationship between muscle and bone metabolism is increasing, and the significance of sarcopenia, the age-related loss of skeletal muscle SM mass and function, is also more important [8] , [9] , [10].

Sarcopenia and low SM mass increase the risk of physical limitation and subsequent disability; therefore, recent articles report that this condition increases the risk of comorbid conditions [11] , [12]. For example, sarcopenia is reported to correlate highly with fragility and increases the risk of falling in the elderly, which is an important risk factor for disability and mortality [13] , [14].

Moreover, the loss of SM mass, in particular of its strength, is important based on the evidence that SM mass predicts future mortality in middle-aged, as well as older, adults [14].

What age is reported to have peak SM mass? In terms of total lean body mass, it is reported to begin to decrease early in the third decade of life and shows a sharp decline at 45 years of age and older [15] , [16] , [17]. The peak SM index occurs in Korean women in their thirties and forties. We also aimed to find a relationship between BMD and body composition, such as SM mass, body fat mass, and abdominal adiposity, among healthy Korean women in their forties whose SM index was known to be at the peak level.

This was a retrospective study that analyzed a total of premenopausal women, aged 40—50 years, who had a dual-energy X-ray DXA, GE-Lunar Prodigy advance, Lunar software, version Women who were current smokers and women who drank more than 3 units of alcohol per week were excluded from this study. This study also excluded women who had thyroid disease, rheumatic arthritis, hepatic or renal dysfunction, or malignancy or who were taking medications that could affect BMD.

Statistical analyses were performed using R software, version 3. The CC was expressed using conditioning plots-coplots. EUMC The mean height, weight, and BMI were The mean SM mass and mean body fat mass were The mean WC and HC were The mean WHR was 0.

The mean Z-score and BMD of the lumbar spine and total hip were similar to previous reports of Korean women [2] , [20] , [21]. Usually, the proportion of women with low bone mass is low in premenopausal women, especially young premenopausal women, who are high in estrogenic condition. However, we have to consider the possibility of low bone mass in Korean premenopausal women because of the social trend of women being too thin, and many women are on strict diets.

In this study, the results were as expected. In this study, a small percentage of premenopausal women 28 women in total [1. This result is concordant with the recent study on Korean premenopausal women demonstrating that low body muscle mass is associated with low BMD [21].

This is concordant with a recent report on the relationship between obesity and BMD [22]. Lean mass, not fat mass, was an independent associated factor of aerial BMD in both men and women [22]. The study population was healthy premenopausal women who were not obese or skinny, considering the mean BMI was In terms of central obesity, when we consider the WHR 0.

We chose the age group of 40—49 years old because Korean women show the peak SM index in their forties [18]. This is concordant with studies reporting that SM mass gradually declines beginning at approximately 45 years of age [15] , [16] , [17]. The strength of this study is as follows: First, this was a relatively large-scale study with over premenopausal women in a single institution.

Second, in terms of examination conditions, we analyzed data obtained from a single health promotion center where the BMD tests were performed in a constantly stable condition. Additional studies in Asian populations are still needed.

The limitations of this study are the lack of information of physical activity and nutritional status and the use of total body muscle mass, as muscle mass was not classified into different body regions.

If we can get the same results with this study from a large-scale study, then we might estimate the BMD-F in healthy premenopausal women by performing a BIA method without undergoing DXA testing, which would eliminate the risk of exposure to radiation. Peer review under responsibility of The Korean Society of Osteoporosis. National Center for Biotechnology Information , U. Journal List Osteoporos Sarcopenia v. Osteoporos Sarcopenia. Published online Jun 7. Author information Article notes Copyright and License information Disclaimer.

Sa Ra Lee: rk. Publishing services by Elsevier B. Abstract Objectives This study was to investigate mean Z-score of BMD of Korean premenopausal women and also to investigate the relationship between BMD and body composition, such as skeletal muscle SM mass, body fat mass, and abdominal adiposity among healthy Korean premenopausal women in their forties. Results The mean age was Conclusions Skeletal muscle mass measured by body composition analyzer of BIA method is a strong correlation factor for BMD especially of hip bone among healthy Korean premenopausal women in their forties.

Keywords: Bone, Hip, Menopause, Skeletal muscle. Introduction Osteopenia and osteoporosis are much more common in postmenopausal women than in premenopausal women. Materials and methods This was a retrospective study that analyzed a total of premenopausal women, aged 40—50 years, who had a dual-energy X-ray DXA, GE-Lunar Prodigy advance, Lunar software, version Open in a separate window.

Conflicts of interest The authors have no financial conflicts of interest. References 1. Kelley G. Exercise and bone mineral density in premenopausal women: a meta-analysis of randomized controlled trials. Int J Endocrinol. Epub Jan Kim K. Bonjour J. Peak bone mass. Osteoporos Int. Riggs B. Weaver C. The National Osteoporosis Foundation's position statement on peak bone mass development and lifestyle factors: a systematic review and implementation recommendations.

Effects of high-impact exercise on bone mineral density: a randomized controlled trial in premenopausal women. Greenway K. Impact exercise and bone density in premenopausal women with below average bone density for age. Eur J Appl Physiol. Frontera W. Metter E. Muscle quality and age: cross-sectional and longitudinal comparisons.

Aging of skeletal muscle: a yr longitudinal study. Delmonico M. Alternative definitions of sarcopenia, lower extremity performance, and functional impairment with aging in older men and women. Goodpaster B. The loss of skeletal muscle strength, mass, and quality in older adults: the health, aging and body composition study. Cooper R. Objective measures of physical capability and subsequent health: a systematic review. Age Ageing.

Fried L. Frailty in older adults: evidence for a pheno-type. Janssen I. Skeletal muscle mass and distribution in men and women aged 18—88 yr.

Kehayias J. Total body potassium and body fat: relevance to aging.

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InBody J10 for Child Healthcare

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