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https://www.readbyqxmd.com/read/27922938/skeletal-muscle-mass-is-associated-with-higher-dietary-protein-intake-and-lower-body-fat-in-postmenopausal-women-a-cross-sectional-study
#1
Thaís R Silva, Poli M Spritzer
OBJECTIVE: We investigated the association between skeletal muscle mass and dietary protein intake, habitual physical activity, body composition, and metabolic variables. METHODS: One hundred three healthy postmenopausal women from southern Brazil (age 55.2 ± 4.9 y, body mass index 27.2 ± 4.6 kg/m) were enrolled. Bone mineral density, %body fat, %trunk fat mass, and appendicular lean mass were assessed by dual-energy x-ray absorptiometry, resting metabolic rate by indirect calorimetry, and habitual physical activity by pedometer...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27898642/manipulation-of-muscle-creatine-and-glycogen-changes-dxa-estimates-of-body-composition
#2
Julia L Bone, Megan L Ross, Kristyen A Tomcik, Nikki A Jeacocke, Will G Hopkins, Louise M Burke
: Standardising a dual x-ray absorptiometry (DXA) protocol is thought to provide a reliable measurement of body composition. PURPOSE: We investigated the effects of manipulating muscle glycogen and creatine content independently and additively on DXA estimates of lean mass. METHOD: Eighteen well-trained male cyclists undertook a parallel group application of creatine loading (n=9) (20 g/d for 5 d loading; 3 g/d maintenance) or placebo (n=9) with crossover application of glycogen loading (12 v 6 g/kg BM/d for 48 h) as part of a larger study involving a glycogen-depleting exercise protocol...
November 28, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27897409/association-of-serum-vitamin-d-with-osteosarcopenic-obesity-korea-national-health-and-nutrition-examination-survey-2008-2010
#3
Jinhee Kim, Yunhwan Lee, Seunghee Kye, Yoon-Sok Chung, Okhee Lee
BACKGROUND: Serum vitamin D levels have been reported to be associated with individual components of body composition. However, the relationship between serum vitamin D and combined indices of adverse body composition is largely unknown. This cross-sectional study examined the association between serum vitamin D and osteosarcopenic obesity in a nationally representative sample of middle-aged and older adults. METHODS: We analysed the Korea National Health and Nutrition Examination Surveys (IV and V) conducted in 2008-2010, consisting of 5908 (2485 men, 3423 women) aged ≥ 50 years...
October 5, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27873046/commercially-available-lifestyle-modification-program-randomized-controlled-trial-addressing-heart-and-bone-health-in-brca1-2-breast-cancer-survivors-after-risk-reducing-salpingo-oophorectomy
#4
Kathleen M Sturgeon, Lorraine T Dean, Mariane Heroux, Jessica Kane, Toni Bauer, Erica Palmer, Jin Long, Shannon Lynch, Linda Jacobs, David B Sarwer, Mary B Leonard, Kathryn Schmitz
PURPOSE: The goal of this RCT was to examine the efficacy and safety of a web-based program to improve cardiovascular and bone health outcomes, among 35 BRCA1/2+ breast cancer survivors who underwent prophylactic oophorectomy and thus experienced premature surgical menopause. METHODS: A 12-month commercially available web-based lifestyle modification program (Precision Nutrition Coaching) was utilized. Cardiovascular fitness, dietary intake, leisure time activity, body composition, bone mineral density, bone structure, and muscle strength were assessed...
November 21, 2016: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/27855417/testosterone-deficiency-and-testosterone-treatment-in-older-men
#5
Farid Saad, Gabriele Röhrig, Stephan von Haehling, Abdulmaged Traish
Frailty is a clinical condition related to changes in metabolism, to sarcopenia, and to decline in muscle mass and strength, bone mineral density, and physical function with aging. The pathophysiology of frailty is multifactorial and associated with comorbidities. Testosterone is implicated in regulating metabolic functions, maintenance of muscle and bone, and inhibition of adipogenesis. In older individuals, reduced testosterone is thought to contribute to an altered state of metabolism, loss of muscle and bone, and increased fat, leading to sarcopenia, sarcopenic obesity, and frailty...
November 18, 2016: Gerontology
https://www.readbyqxmd.com/read/27821924/association-of-actn3-polymorphisms-with-bmd-and-physical-fitness-of-elderly-women
#6
Seok-Ki Min, Seung-Taek Lim, Chang-Sun Kim
[Purpose] Association of ACTN3 polymorphism with bone mineral density and the physical fitness of elderly women is still unclear. Therefore, this study investigated the association between ACTN3 genotype and bone mineral density, and the physical fitness of elderly women. [Subjects and Methods] Sixty-eight elderly women (67.38 ± 3.68 years) were recruited at a Seongbuk-Gu (Seoul, Korea) Medical Service Public Health Center. Measurements of physical fitness included muscle strength, muscle endurance, flexibility, agility, balance and VO2max...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27797678/anorexia-nervosa-analysis-of-trabecular-texture-with-ct
#7
Azadeh Tabari, Martin Torriani, Karen K Miller, Anne Klibanski, Mannudeep K Kalra, Miriam A Bredella
Purpose To determine indexes of skeletal integrity by using computed tomographic (CT) trabecular texture analysis of the lumbar spine in patients with anorexia nervosa and normal-weight control subjects and to determine body composition predictors of trabecular texture. Materials and Methods This cross-sectional study was approved by the institutional review board and compliant with HIPAA. Written informed consent was obtained. The study included 30 women with anorexia nervosa (mean age ± standard deviation, 26 years ± 6) and 30 normal-weight age-matched women (control group)...
October 31, 2016: Radiology
https://www.readbyqxmd.com/read/27782739/body-composition-is-associated-with-bone-and-glucose-metabolism-in-postmenopausal-women-with-type-2-diabetes-mellitus
#8
I Raška, M Rašková, V Zikán, J Škrha
Type 2 diabetes mellitus (T2DM) is associated with increased fracture risk; the underlying mechanism remains unexplained. This study aimed to investigate the relationships between body composition and bone and glucose metabolism in postmenopausal women with T2DM. Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) and body composition. A total of 68 postmenopausal women with T2DM and 71 controls were eligible for the study. In contrast to normal BMD in T2DM, a similar prevalence of low-trauma fractures was observed in both groups...
October 26, 2016: Physiological Research
https://www.readbyqxmd.com/read/27764963/the-relationship-between-osteoporosis-and-body-composition-in-pre-and-postmenopausal-women-from-different-ethnic-groups-in-china
#9
Dan Mo, Peishan Hsieh, Hongrong Yu, Lining Zhou, Jichun Gong, Lin Xu, Peng Liu, Gang Chen, Zhao Chen, Qiongying Deng
OBJECTIVE: To investigate the ethnic differences in osteoporosis (OP) and body composition (BC) and their relationship in the Maonan, Mulam, Hmong, and Yao minorities in China. DESIGN: A total of 860 Maonan, Mulam, Hmong, and Yao women were included in this cross-sectional study. Demographic, health history, and lifestyle information was collected using questionnaires. BC was measured through bioelectrical impedance analysis, and bone mineral density (BMD) was assessed via calcaneal quantitative ultrasound...
October 21, 2016: Ethnicity & Health
https://www.readbyqxmd.com/read/27736026/sarcopenic-obesity-and-its-temporal-associations-with-changes-in-bone-mineral-density-incident-falls-and-fractures-in-older-men-the-concord-health-and-ageing-in-men-project
#10
David Scott, Markus Seibel, Robert Cumming, Vasi Naganathan, Fiona Blyth, David G Le Couteur, David J Handelsman, Louise M Waite, Vasant Hirani
Body composition and muscle function have important implications for falls and fractures in older adults. We aimed to investigate longitudinal associations between sarcopenic obesity and its components with bone mineral density (BMD), and incident falls and fractures, in Australian community-dwelling older men. 1,486 men aged ≥70 years from the Concord Health and Ageing in Men Project (CHAMP) study were assessed at baseline (2005-2007), 2 year follow-up (2007-2009; N = 1,238), and 5 year follow-up (2010-2013; N = 861)...
October 13, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27735890/resistance-training-with-dietary-intake-maintenance-increases-strength-without-altering-body-composition-in-older-women
#11
Matheus Amarante DO Nascimento, Aline M Gerage, Renata S Januário, Fábio L Pina, Luís A Gobbo, Jerry L Mayhew, Edilson S Cyrino
BACKGROUND: Evidence suggests that the aging process tends to lead to sarcopenia and osteoporosis which reduce the quality of life in older women. Resistance training (RT) is widely supported as a means of delaying or offsetting the decline in muscle strength and loss of bone mineral content in older women. The purpose of this investigation was to analyze the effects of a 12-wk RT program (3 times a week) with dietary intake maintenance on muscle strength and body composition of healthy, sedentary older women...
October 13, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27716326/physical-activity-throughout-adolescence-and-body-composition-at-18%C3%A2-years-1993-pelotas-brazil-birth-cohort-study
#12
Virgílio Viana Ramires, Samuel Carvalho Dumith, Fernando Cesar Wehrmeister, Pedro Curi Hallal, Ana Maria Baptista Menezes, Helen Gonçalves
BACKGROUND: Adolescence is a period of accelerated development and increases in body composition. Physical activity (PA) practice has been associated with the development of major components of body composition (bone, muscle and fat). However, the longitudinal effects of PA of different intensities during adolescence are still not well understood. Thus, the main goal this study has investigate the association between practice of moderate- and vigorous-intensity physical activity throughout adolescence and body composition, specifically lean mass (LM) and fat mass (FM), at age 18...
October 1, 2016: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/27695036/differential-effects-of-dietary-fat-content-and-protein-source-on-bone-phenotype-and-fatty-acid-oxidation-in-female-c57bl-6-mice
#13
Emily A Sawin, Bridget M Stroup, Sangita G Murali, Lucas M O'Neill, James M Ntambi, Denise M Ney
BACKGROUND: Glycomacropeptide (GMP) is a 64-amino acid glycophosphopeptide released from κ-casein during cheesemaking that promotes satiety, reduces body fat, increases bone mass and infers prebiotic and anti-inflammatory effects. The impact of adiposity and gender on bone health is unclear. OBJECTIVE: To determine how feeding female mice diets providing 60% Fat Kcal (high-fat) or 13% Fat Kcal (control) with either GMP or casein as the protein source impacts: body composition, ex vivo fatty acid oxidation, bone (femoral) biomechanical performance, and the relationship between body composition and bone...
2016: PloS One
https://www.readbyqxmd.com/read/27672678/reduced-appendicular-lean-body-mass-muscle-strength-and-size-of-type-ii-muscle-fibers-in-patients-with-spondyloarthritis-versus-healthy-controls-a-cross-sectional-study
#14
Kristine Røren Nordén, Hanne Dagfinrud, Amund Løvstad, Truls Raastad
Introduction. The purpose of this study was to investigate body composition, muscle function, and muscle morphology in patients with spondyloarthritis (SpA). Methods. Ten male SpA patients (mean ± SD age 39 ± 4.1 years) were compared with ten healthy controls matched for sex, age, body mass index, and self-reported level of physical exercise. Body composition was measured by dual energy X-ray absorptiometry. Musculus quadriceps femoris (QF) strength was assessed by maximal isometric contractions prior to test of muscular endurance...
2016: TheScientificWorldJournal
https://www.readbyqxmd.com/read/27667996/osteosarcopenic-obesity-syndrome-what-is-it-and-how-can-it-be-identified-and-diagnosed
#15
REVIEW
Jasminka Z Ilich, Owen J Kelly, Julia E Inglis
Conditions related to body composition and aging, such as osteopenic obesity, sarcopenia/sarcopenic obesity, and the newly termed osteosarcopenic obesity (triad of bone muscle and adipose tissue impairment), are beginning to gain recognition. However there is still a lack of definitive diagnostic criteria for these conditions. Little is known about the long-term impact of these combined conditions of osteoporosis, sarcopenia, and obesity in older adults. Many may go undiagnosed and progress untreated. Therefore, the objective of this research is to create diagnostic criteria for osteosarcopenic obesity in older women...
2016: Current Gerontology and Geriatrics Research
https://www.readbyqxmd.com/read/27650875/sarcopenia-and-osteoporosis-in-portuguese-centenarians
#16
A P da Silva, A Matos, R Ribeiro, Â Gil, A Valente, M Bicho, J Gorjão-Clara
BACKGROUND/OBJECTIVES: To evaluate the prevalence of sarcopenia and osteoporosis in centenarians and its association with body composition and past physical activity (PPA). SUBJECTS/METHODS: We conducted an observational cross-sectional study in a representative nationwide population of 253 Portuguese centenarians. A clinically oriented questionnaire and anthropometric and body composition analysis by bioimpedance were executed. Sarcopenia was determined using a muscle mass (MM) index cutoff ⩽16...
September 21, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27637579/-obesity-in-old-age-and-its-importance-for-functionality-and-frailty
#17
Julia Wojzischke, Rebecca Diekmann, Jürgen M Bauer
In later life a high body mass index (BMI) is associated with the lowest age-related mortality rate. The BMI range used by the World Health Organization (WHO) to classify overweight, a BMI of 25-30 kg/m(2), can be regarded as normal weight in old age; nevertheless, obesity is associated with an increased risk of disability and of a deterioration in physical functionality, particularly among older age groups. This relationship to obesity has also been established for frailty. For this reason, a reduction in weight may be appropriate under functional aspects if BMI values exceed 30 kg/m(2); however, such a decision cannot be made on the basis of an individual BMI alone...
October 2016: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/27635754/nutritional-interventions-for-optimizing-healthy-body-composition-in-older-adults-in-the-community-an-umbrella-review-of-systematic-reviews
#18
Timothy J Schultz, Peter Roupas, Richard Wiechula, Debra Krause, Susan Gravier, Anthony Tuckett, Sonia Hines, Alison Kitson
BACKGROUND: Optimizing body composition for healthy aging in the community is a significant challenge. There are a number of potential interventions available for older people to support both weight gain (for those who are underweight) and weight loss (for overweight or obese people). While the benefits of weight gain for underweight people are generally clearly defined, the value of weight loss in overweight or obese people is less clear, particularly for older people. OBJECTIVES: This umbrella review aimed to measure the effectiveness of nutritional interventions for optimizing healthy body composition in older adults living in the community and to explore theirqualitative perceptions...
August 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27633075/vitamin-d-in-relation-to-bone-health-and-muscle-function-in-young-female-soccer-players
#19
André Brännström, Ji-Guo Yu, Per Jonsson, Torbjörn Åkerfeldt, Mats Stridsberg, Michael Svensson
The present work investigated serum vitamin D (25(OH)D) status in relation to bone and muscle qualities and functions in 19 female soccer players (13-16 years) resident at northern latitude with very low sun exposure (∼32-36 h/month) during winter season (late January to early March). Serum 25(OH)D, parathyroid hormone and bone turnover markers osteocalcin (OC) and beta carboxy-terminal collagen cross-links (β-Ctx), as well as body composition and muscle performance were examined. Hormones were tested using routine laboratory methods...
September 15, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27628047/association-between-snps-and-haplotypes-in-the-mettl21c-gene-and-peak-bone-mineral-density-and-body-composition-in-chinese-male-nuclear-families
#20
Fei Zhao, Li-Hong Gao, Shan-Shan Li, Zhan-Ying Wei, Wen-Zhen Fu, Jin-Wei He, Yu-Juan Liu, Yun-Qiu Hu, Jing Dong, Zhen-Lin Zhang
The methyltransferase-like 21C gene (METTL21C), which is mainly expressed in muscle, can promote the differentiation of myoblasts to myotubes and reduce glucocorticoid-induced apoptosis of osteocytes. The purpose of this study was to explore the association between single nucleotide polymorphisms of METTL21C and peak bone mineral density (BMD), body mass index, total fat mass (TFM), and total lean mass (TLM) in Chinese young men. Fifteen tagging single nucleotide polymorphisms were genotyped, and haplotype blocks were derived in 400 Chinese male nuclear families...
September 14, 2016: Journal of Bone and Mineral Metabolism
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