搜索结果: 31-44 共查到“知识库 骨骼生理学”相关记录44条 . 查询时间(2.18 秒)
Moderate weight loss in obese and overweight men preserves bone quality
bone caloric restriction men obesity sex steroids
2018/12/24
Background: Weight loss (WL) negatively affects bone mineral density (BMD) in older populations and has specifically been shown in women.
Nitrate Supplementation Enhances the Contractile Properties of Human Skeletal Muscle
BEETROOT,JUICE FORCE–FREQUENCY,RELATIONSHIP EXCITATION–CONTRACTION,COUPLING MUSCLE,STRENGTH EXPLOSIVE,FORCE,PRODUCTION
2017/5/25
Dietary nitrate supplementation positively affects cardiovascular function at rest and energy metabolism during exercise in humans and has recently also been reported to markedly enhance the in vitro ...
Visceral adiposity is negatively associated with bone density and muscle attenuation
analytic morphomics bone density computed tomography muscle attenuation visceral adiposity
2018/12/20
Background: The storage of adipose tissue in ectopic compartments is a hallmark attribute linking greater body mass index (BMI) with cardiometabolic diseases. Despite ample evidence to confirm that in...
Visceral adiposity is negatively associated with bone density and muscle attenuation
analytic morphomics bone density computed tomography muscle attenuation visceral adiposity
2018/12/20
Background: The storage of adipose tissue in ectopic compartments is a hallmark attribute linking greater body mass index (BMI) with cardiometabolic diseases. Despite ample evidence to confirm that in...
Musculoskeletal Risk Factors as Predictors of Injury in Community-Dwelling Women
PHYSICAL,ACTIVITY,BEHAVIOR HYPERMOBILITY PHYSICAL,ACTIVITY,GUIDELINES STRUCTURAL,FACTORS
2017/5/24
Participating in health-related physical activity (PA) may increase risk for musculoskeletal injury (MSI).
Adolescent Physical Activity and Bone Strength at the Proximal Femurin Adulthood
HIP STRUCTURAL ANALYSIS PHYSICAL ACTIVITY QUESTIONNAIRE LEAN TISSUE MASS BONE GEOMETRY LONGITUDINAL
2017/5/19
Physical activity (PA) enhances bone structural strength at the proximal femur in adolescence, but whether these benefits are maintained into early adulthood remains unknown. The purpose of this study...
Why Don’t Most Runners Get Knee Osteoarthritis? A Case for Per-Unit-Distance Loads
WALKING RUNNING KNEE JOINT CONTACT FORCE MUSCULOSKELETAL MODELING
2017/5/19
Peak knee joint contact forces (“loads”) in running are much higher than they are in walking, where the peak load has been associated with the initiation and progression of knee osteoarthritis. Howeve...
Effects of a Combined Aerobic and Strength Training Program in Youth Patients with Acute Lymphoblastic Leukemia
Acute lymphoblastic leukemia child strength training pediatrics quality of life
2015/5/12
Cure rates of youth with Acute Lymphoblastic Leukemia (ALL) have increased in the past decades, but survivor’s quality of life and physical fitness has become a growing concern. Although previous repo...
Time-of-Day Effects on EMG Parameters During the Wingate Test in Boys
Dkwdurnal variation muscle power muscle fatigue electromyography pre-pubertal
2015/5/12
In boys, muscle power and strength fluctuate with time-of-day with morning nadirs and afternoon maximum values. However, the exact underlying mechanisms of this daily variation are not studied yet. Th...
Longitudinal Study of Repeated Sprint Performance in Youth Soccer Players of Contrasting Skeletal Maturity Status
young athletes multilevel modeling growth maturation short-term effort
2015/5/12
without the use of the arms were measured. Fat-free mass (FFM) was determined by age and gender-specific formulas. Developmental changes in total sprint time across ages were predicted using multileve...
Evidence for a Non-Genomic Action of Testosterone in Skeletal Muscle Which may Improve Athletic Performance: Implications for the Female Athlete
Calcium fatigue female rapid power androgen
2015/5/12
Jessica R. Dent;Deborah K. Fletcher;Michael R. McGuiganThis review will focus on the proposed second mode of testosterone action (now termed non-genomic) that appears to occur independently of the tra...
成骨细胞复合原位成型磷酸钙骨水泥的细胞学研究
成骨细胞 磷酸钙类 骨代用品
2012/3/1
目的：通过体外细胞培养实验，观察分析壳聚糖微球/磷酸钙骨水泥、β-磷酸三钙(β-tricalcium phosphate, β-TCP) /磷酸钙骨水泥、含钾磷酸钙骨水泥浆料固化过程对成骨细胞的影响以及固化后10 d细胞的生物活性变化。方法：首先以兔的骨髓为组织来源，采用密度梯度分离法和贴壁分离法分离培养原代兔骨髓基质细胞（rabbit marrow stromal cell，rMSC），通过流...
古人类骨中羟磷灰石的XRD和喇曼光谱分析
生物考古(Bioarchaeometry) 骨骼污染(Bone contamination) 羟磷灰石(Hydroxyapatite) XRD 喇曼光谱(Raman spectra)
2008/3/6
人骨残骸是生物考古的主要对象,而骨骼污染鉴别是样品选择的依据,也是生物考古的前提.利用X射线衍射(XRD)和喇曼光谱相结合的方法,通过对新疆克雅河圆沙古城遗址出土的人类骨骼中羟磷灰石的分析,来辨析骨骼污染程度.研究结果表明,两种方法的有机结合,准确地反映了骨骼中羟磷灰石结晶度的变化,从而可简单、较为有效地鉴别古代人类骨骼样品的污染.ANALYSIS OF HYDROXYAPATITE ...
骨与关节系统发生过程中相关调控机制的研究进展Progress on the related mechanism in the development of bone and joint
发生 肢芽 间充质细胞
2008/1/10
摘要脊椎动物胚胎期骨与关节系统的发生是一种复杂生命现象，起始于中胚层间充质细胞的定向聚集，形成肢芽，然后在一系列作用因子的调控下，肢芽内细胞进一步分化，形成具有骨骼雏形的软骨原基，后者经软骨内骨化发育成骨。四肢骨大多是以这种方式发生的，四肢的滑膜关节系统也随骨骼的发生而形成。详细阐述了近年来对肢体骨与关节系统发生各步骤相关调控机制方面的研究进展。Abstract: The embryonic de...