Fat mass

脂肪质量
  • 文章类型: Journal Article
    (1)背景:多囊卵巢综合征(PCOS)是一种具有多种心血管代谢危险因素的异质性综合征。我们旨在调查PCOS亚型中体脂质量(BFM)和骨骼肌质量(SMM)与心脏代谢风险的关联是否不同。(2)方法:对401名参与者(245名PCOS和156名对照)进行人体测量学测量。葡萄糖-脂质分布,生殖激素和身体成分与倾向评分匹配(PSM)分析。心脏代谢风险评分的关联(z评分,根据肥胖水平和糖脂测量值计算)与BFM(通过躯干BFM/Height2估计)和SMM(通过SMM/Height2估计)。(3)结果:躯干BFM/Height2和SMM/Height2均与PCOS的心脏代谢风险呈正相关(躯干BFM/Height2,OR2.33,95%CI1.49-3.65;SMM/Height2,OR2.05,95%CI1.12-3.76)。SMM/Height2与肥胖PCOS患者心脏代谢风险增加相关(BMI≥28kg/m2,OR2.27,95%CI1.15-4.47)。对于BMI较低(<28kg/m2)的人,躯干BFM/Height2在两组中均显示出较高的OR(PCOS,OR2.12,95%CI1.06-4.24;对照2.04,95%CI1.04-4.02)。此外,在识别代谢和生殖集群的分级聚类中验证了BMI分层组之间的不同关联.(4)结论:在PCOS女性中,BFM和SMM与更高的心脏代谢风险协同相关。虽然BFM有助于增加心脏代谢风险,SMM在肥胖PCOS中也起主要作用。我们的结果强调了身体成分在PCOS管理中的重要性。
    (1) Background: polycystic ovarian syndrome (PCOS) is a heterogeneous syndrome with a constellation of cardiometabolic risk factors. We aimed to investigate if the association of body fat mass (BFM) and skeletal muscle mass (SMM) with cardiometabolic risk differed in PCOS subtypes. (2) Methods: 401 participants (245 PCOS and 156 controls) were assessed for anthropometric measurements, glucose-lipid profiles, reproductive hormones and body composition with propensity score-matched (PSM) analysis. The association of the cardiometabolic risk score (z score, calculated based on levels of obesity and gluco-lipid measurements) with BFM (estimated by trunk BFM/Height2) and SMM (estimated by SMM/Height2) was calculated. (3) Results: Trunk BFM/Height2 and SMM/Height2 were both positively associated with cardiometabolic risk in PCOS (trunk BFM/Height2, OR 2.33, 95% CI 1.49-3.65; SMM/Height2, OR 2.05, 95% CI 1.12-3.76). SMM/Height2 associated with increased cardiometabolic risk in obese PCOS (BMI ≥ 28 kg/m2, OR 2.27, 95% CI 1.15-4.47). For those with lower BMI (<28 kg/m2), trunk BFM/Height2 showed a higher OR in both groups (PCOS, OR 2.12, 95% CI 1.06-4.24; control 2.04, 95% CI 1.04-4.02). Moreover, distinct associations among BMI-stratified groups were validated in hierarchical clustering identifying metabolic and reproductive clusters. (4) Conclusions: BFM and SMM are synergistically associated with higher cardiometabolic risk in PCOS women. Although BFM contributes to increased cardiometabolic risk, SMM also plays a primary role in obese PCOS. Our results highlight the importance of body composition in the management of PCOS.
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  • 文章类型: Journal Article
    背景和目标:肌肉减少性肥胖(SO)是一个新兴的问题,特别是在减肥手术(BS)的候选人。我们假设肌肉骨骼超声(MUS),一种简单易懂的方法,可能是SO的可靠指标。材料和方法:一项横断面试点研究,包括122名受试者(90例和32名对照,73%女性,平均年龄:51.2岁),在大学医院MútuaTerrassa进行了BS治疗。通过生物电阻抗分析(BIA)计算瘦体重(LM),通过MUS计算大腿肌肉厚度(TMT)。为了通过BIA识别具有SO的受试者,我们使用骨骼肌指数(SMI)。使用ROC曲线确定MUS的有效性。结果:肥胖组的平均BMI为44.22kg/m2。我们观察到通过BIA评估的LM和SMI与通过MUS评估的TMT之间的相关性(R=0.46,p<0.001)。这种相关性在SO组(n=40)中保持在显著水平:R=0.79;p=0.003)。通过MUS评估的TMT能够使用BIA预测SMI(AUC0.77;95%CI:0.68242至0.84281)。在TMT中,最大效率的最佳截止点为1.57cm(灵敏度=75.6%,特异性=71.1%)。结论:US评估的股四头肌TMT是识别SO受试者的有用工具。有必要进行更大规模的研究来验证这种简单的低成本筛查策略。
    Background and objectives: Sarcopenic obesity (SO) is an emerging problem, especially in candidates for bariatric surgery (BS). We hypothesized that musculoskeletal ultrasound (MUS), a simple and accessible method, could be a reliable index of SO. Materials and Methods: A cross-sectional pilot study including 122 subjects (90 cases and 32 controls, 73% female, mean age: 51.2 years) who underwent BS was conducted at University Hospital Mútua Terrassa. The lean mass (LM) was calculated by bioelectrical impedance analysis (BIA) and the thigh muscle thickness (TMT) by MUS. To identify the subjects with SO by BIA, we used skeletal muscle index (SMI). The validity of MUS was determined using the ROC curve. Results: The mean BMI in the obesity group was 44.22 kg/m2. We observed a correlation between the LM and SMI assessed by BIA and the TMT assessed by MUS (R = 0.46, p < 0.001). This correlation was maintained at significant levels in the SO group (n = 40): R = 0.79; p = 0.003). The TMT assessed by MUS was able to predict SMI using BIA (AUC 0.77; 95% CI: 0.68242 to 0.84281). The optimal cut-off point for maximum efficiency was 1.57 cm in TMT (sensitivity = 75.6% and specificity = 71.1%). Conclusions: The TMT of the quadriceps assessed by US is a useful tool for identifying subjects with SO. Larger studies to validate this simple low-cost screening strategy are warranted.
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  • 文章类型: Journal Article
    Bicycle touring as a modality of physical activity that involves whole-body cardiorespiratory and metabolic functions could be a potential strategy to improve body composition and cardiorespiratory fitness. Therefore, the aim of the current study was to investigate the effects of 7-days bicycle touring activity on body composition and physical fitness. A total of 13 individuals (three women) participated in this quasi-experimental study. The participants were evaluated at baseline and were tracked for up to 12 days after the intervention. The intervention consisted of a 480 km bicycle touring route performed over 8 days. Body weight and body composition (i.e., fat mass and lean mass) were assessed using a bioelectrical impedance analyser. Physical fitness was measured using the International Fitness Scale questionnaire. We conducted a repeated-measures analysis of variance to determine changes in body weight and body composition and paired sample t-tests to analyse changes in physical fitness. Significant differences in fat mass were observed between the baseline and both post-intervention (p = 0.003) and re-test values (p = 0.031). Significant differences were also noted in lean mass between the baseline and post-intervention values (p = 0.003), whereas no significant changes were observed when compared the baseline and re-test values (p = 0.178). Significant differences were obtained in cardiorespiratory fitness when comparing the baseline with the post-intervention values (p = 0.016), whereas no significant differences were noted in general fitness, muscular strength, speed/agility, and flexibility (all p > 0.05). In conclusion, a 7-day bicycle touring intervention can significantly reduce fat mass and increase lean mass and cardiorespiratory fitness in healthy individuals.
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  • 文章类型: Journal Article
    To compare body composition between women with premature ovarian insufficiency (POI) using hormone therapy and controls with normal ovarian function, and to correlate body composition with cardiovascular risk markers in the POI group.
    A case-control study of 70 women with POI matched by age and body mass index with 70 controls.
    All were submitted to whole-body dual-energy X-ray absorptiometry (DXA) to analyse body composition. In the POI group, total cholesterol, HDL-cholesterol, LDL-cholesterol, VLDL-cholesterol, triglycerides, glucose, insulin, transaminases and C-reactive protein levels were measured, as well as the thickness of the carotid artery intima-media complex.
    Total mass, fat mass, lean mass (total, percentage and index) and the android/gynoid (A/G) ratio were similar in both groups; however, bone mineral content was lower (P < .001) in the POI group. Lean and fat mass indexes were 14.19 ± 1.63 and 11.04 ± 3.58, respectively, and the percentage of gynoid to android fat was higher (51.17 ± 6.71% versus 47.74 ± 9.19%; A/G ratio = 0.93 ± 0.15) in the POI group. In addition, the increase in total mass correlated positively with glucose and ALT levels and negatively with HDL-cholesterol. Increased A/G ratio was the measurement most frequently associated with cardiovascular risk markers.
    The body composition of women with POI using hormone therapy is similar to that of women with normal ovarian function with regard to lean and fat mass content and fat distribution. In women with POI, the higher the A/G ratio, the worse the cardiovascular risk markers.
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  • 文章类型: Journal Article
    BACKGROUND: Adiposity is closely related to hypertension (HTN) in paediatric population. However, which adiposity indicator is most associated with HTN among children and adolescents with intellectual disability remains unknown. The aim of this study was to evaluate the associations between HTN prevalence and different adiposity indicators: body mass index (BMI) percentile, body fat percentage (BFP), waist circumference (WC), hip circumference (HC), waist-hip ratio (WHR) and waist-to-height ratio (WHtR) in students with intellectual disability.
    METHODS: Cross-sectional study included a sample of 568 schoolchildren with intellectual disability, aged 7-18 years. Blood pressure, BMI, body composition, WC and HC were determined using standardized equipment.
    RESULTS: Multivariate logistic regression showed that male gender, adolescence, high HC and excessive BFP were significant independent factors that increased risk of HTN occurrence in population with intellectual disability.
    CONCLUSIONS: Findings indicated that HC and BFP, in particular, may be helpful tools to detect HTN in population with intellectual disability.
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  • 文章类型: Case Reports
    OBJECTIVE: To investigate the blood glucose kinetics and physiological effects experienced by a type 1 diabetic (T1D) finisher of a 3-day, multi-stage ultra endurance triathlon consisting of a 10 km swim and 144.8 km bike (stage 1), a 275.4 km bike (stage 2), and an 84.4 km run (stage 3).
    METHODS: The athlete self-monitored blood glucose (SMBG) levels via fingerstick blood draw and hand-held glucometer. Researchers evaluated blood glucose kinetics via a continuous glucose monitoring device. The athlete maintained normal dietary and insulin patterns before, during and after competition daily. Weight and body composition were measured via bioelectrical impedance and select biomarkers were measured in blood.
    RESULTS: The athlete spent 73.0, 3.4, and 15.1% of during race time in a hyperglycemic state (≥130 mg dL-1) during stages 1, 2, and 3, respectively, and 0.0, 78.6, and 33.6% in a hypoglycemic state (≤80 mg dL-1). Nocturnal glycemic levels showed the athlete spent 86.1, 83.0, and 84.8% of sleep in a hyperglycemic state during nights 1, 2, and 3, respectively, and 9.0, 0.0, and 0.0% in a hypoglycemic state. From pre- to post-race, body weight (73.2 to 76.9 kg) and total body water increased (49.2-51.6 kg). In addition, there were dramatic increases in creatine kinase (271.7-9252.8 µ L-1), cortisol (137.1-270.2 pg mL-1), CRP (188.3-8046.9 ng mL-1), and aldosterone (449.1-1679.6 pg mL-1).
    CONCLUSIONS: It is possible for a T1D athlete to complete a multi-stage ultraendurance triathlon and maintain glycemic control using SMBG methods. In addition, a T1D athlete participating in an ultraendurance triathlon results in substantial changes in body composition, hormones, and muscle damage.
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  • 文章类型: Journal Article
    BACKGROUND: For the growing numbers of obese elderly with diabetes, the glucagon-like peptide-1 (GLP-1) receptor analogue (liraglutide) appears a safe way to promote and maintain substantial weight loss. Given this background, the aim of this study was to assess the effect of the liraglutide treatment, at doses up to 3.0 mg per day, on the body composition, focusing on sarcopenia, in overweight and obese elderly with type 2 diabetes mellitus (T2DM).
    METHODS: A perspective study was carried out in overweight and obese T2DM patients with HbA1c equal to 7.0 % (53 mmol/mol) ~10.0 % (86), under 3-month treatment (at least) of maximal dose of metformin at stable regime, and additional liraglutide at doses up to 3.0 mg per day. Body composition markers such as skeletal muscle index (SMI), android and gynoid fat mass, and arms and legs fat free mass, was measured by dual-energy X-ray densitometry (DXA) at baseline and after 24 weeks of liraglutide treatment. Glucose control was also carried out by glucose and HbA1c.
    RESULTS: Nine subjects (male/female 6/3, mean age 68.22 ± 3.86 years, BMI 32.34 ± 4.89 kg/m2) were evaluated. We noted a median decrease in BMI (-0.78 kg/m2), weight (-2000 g), fat mass (-1498 g) and android fat (-0.9 %), and a increase in SMI (+0.03 kg/m2) from baseline. Glycemic control also improved, with a median change HbA1c of -0.80 %.
    CONCLUSIONS: Twenty-four weeks of liraglutide treatment was associated with reductions in fat mass and android fat. In addition, in order to prevent sarcopenia, it preserved the muscular tropism.
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