Concurrent training protocol for men with androgen deficiency in the aging male: a randomized clinical trial

Background: The androgen deficiency in the aging male (ADAM) affects physical, sexual, and psychological aspects with characteristics symptoms of middle-aged men. The practice of regular physical activity and physical exercise can attenuate these symptoms. The aim of this randomized clinical trial is to propose a physical exercise protocol based on concurrent training for middle-aged men with ADAM.

Method: Randomized clinical trial with a 6-month intervention will randomly divided into two groups: experimental group (EG) and control group (CG). Four evaluations will be carried out, (1) pre-intervention; (2) in the first month of intervention; (3) in the third month of intervention; (4) post-intervention, evaluating: physical, psychological, sexual, and hormonal aspects. The intervention protocol with concurrent training will have duration of 6 months; frequency of 3 times weekly, with 60?min per session. The two-way ANOVA test will be used for the inter-group and intra-group comparisons with repeated measurements, and also Sydak’s comparison test.

Conclusion: This protocol was developed with the intent of easing the symptoms of ADAM. In addition, it is believed that the concurrent training protocol could be capable to recover hormonal, physical, psychological, and sexual aspect of middle-aged men with ADAM.     

运动对去卵巢大鼠的影响

目的:研究不同强度运动对去卵巢大鼠骨量以外的其它因素的影响.方法:以三月龄SD 大鼠去卵巢作为绝经妇女模型,采取不同强度跑台运动( 中等强度和大强度运动) 与正常对照组和去卵巢对照组进行比较,测定各组大鼠的体重、摄食量、小腿三头肌重量和体积、股骨长度和宽度,以了解不同强度运动对去卵巢大鼠的影响.结果:去卵巢大鼠体重明显增加,以中等强度组大鼠的增加最显著,各组大鼠体重的增加并不伴随摄食量的增加.中等强度和大强度的跑台运动均可增加肌肉重量,有利于股骨的长长,而大强度运动不能增加肌肉的体积,对股骨的长长无作用.两种强度的运动对去卵巢大鼠股骨的增宽均无作用.结论:中等强度运动对去卵巢大鼠产生积极性作用,大强度运动对去卵巢大鼠无明显作用.     

女子身体工作能力的某些优势及训练探讨

当前女子竞技运动世界纪录不断刷新,并以惊人的速度向男子世界记录接近,特别是马拉松、游泳等项目表现尤为突出．本文通过对一些文献的综述,展示女子身体工作能力的某些优势以及导致竞技运动成绩性别差异的主要原因,欲为发掘女子的竞技运动潜力及其训练提供一定的参考     

Comparing two measures of creatinine clearance: an application of errors-in-variables and bootstrap techniques

Two indices of creatinine clearance (an index of kidney function) are compared on a group of cancer patients who underwent chemotherapy with a potentially nephrotoxic drug. The standard index, measured creatinine clearance MCC, is cumbersome to use, whereas the more convenient alternative, estimated creatinine clearance ECC, has not yet been conclusively evaluated on cancer patients. We conclude that under certain clinical conditions ECC and MCC are identically calibrated for males, but not for females, and we obtain estimated true and false positive rates for assessing the use of ECC instead of MCC as a diagnostic tool. We use a model that is formally equivalent to an errors-in-variables model with (unbalanced) repeated observations and correlated measurement errors. The bootstrap is used to obtain standard errors and confidence limits.     

Maximum entropy estimation for survey sampling

Calibration methods have been widely studied in survey sampling over the last decades. Viewing calibration as an inverse problem, we extend the calibration technique by using a maximum entropy method. Finding the optimal weights is achieved by considering random weights and looking for a discrete distribution which maximizes an entropy under the calibration constraint. This method points a new frame for the computation of such estimates and the investigation of its statistical properties.     

Perceived Climate in Physical Activity Settings

This study focused on the perceived climate for LGBT youth and other minority groups in physical activity settings. A large sample of undergraduates and a selected sample including student teachers/interns and a campus Pride group completed a school climate survey and rated the climate in three physical activity settings (physical education, organized sport, exercise). Overall, school climate survey results paralleled the results with national samples revealing high levels of homophobic remarks and low levels of intervention. Physical activity climate ratings were mid-range, but multivariate analysis of variation test (MANOVA) revealed clear differences with all settings rated more inclusive for racial/ethnic minorities and most exclusive for gays/lesbians and people with disabilities. The results are in line with national surveys and research suggesting sexual orientation and physical characteristics are often the basis for harassment and exclusion in sport and physical activity. The current results also indicate that future physical activity professionals recognize exclusion, suggesting they could benefit from programs that move beyond awareness to skills and strategies for creating more inclusive programs.     

A power study of k-linear-r-ahead recursive residuals test for change-point in finite sequences

A change-point problem in finite sequences is considered along with, so-called, k-linear-r-ahead recursive residuals and a test procedure proposed by ?o?a¸d? et al. [?o?a¸d?, J.A., Szkutnik, Z., Majerczak, J. and Duda, K. 1998, Detection of change point in oxygen uptake during an incremental exercise test using recursive residuals: relationship to the plasma lactate accumulation and blood acid base balance. European Journal of Applied Physiology, 78, 369–377.]. Theoretical significance levels of that (conservative) test are compared with its simulated sizes. Numerical approximations to the powers against various alternatives are given. Properties of the k-linear-r-ahead recursive residuals are described and the consistency of the test is proved, when the noise level goes to zero.     

论德沃金的整体性阐释理论

德沃金的整体性阐释理论主要是为了批驳"因袭主义"和"实用主义"这两种关于法律的观念而专门提出的。通过对一些著名的疑难案件的讨论,德沃金认为,任何一个案件都存在一个唯一正确的答案,而这主要是来自于法律共同体所达成的基本共识。整体性阐释理论对我国的司法审判有所启示,主要是对"自由裁量权"行使的合理限制。     

浅议中国人物画的线条艺术

线条是中国人物画的精脉,是最简练概括的表现语言,是带有主观性的、带有情感的语言。中国人物画中的线条运用是极为丰富的,也是十分重要的。通过分析中国人物画的名画和历史,对中国人物画线条基本类型、线条练习、线条运用的研究,探讨中国人物画线条艺术的魅力。     

体育锻炼对高职高专学生心理健康干预研究

随着时代的发展,社会的进步,大学生的心理健康问题日益受到了人们的重视与关注。通过对高职高专学生心理健康干预的研究,寻找提高高职高专学生身心健康标准的切入点,通过整合建立大学生身心健康教育的模型,尤其注重建立＂常态＂和＂发展＂层面学生身心健康的教学模式,为高职高专体育课教学提供科学的实践依据;同时为高职高专学校体育课程体系进行科学、合理、有效的评价提供理论依据。