训练及类固醇药物对动物骨、肌肉肌腱和韧带生物力学特性的影响

本实验对训练动物予以类固醇药物,发现其肌力增强,但工作时间缩短,肌肉断裂强度和能量吸收无改变。胫骨、跟腱、屈趾肌腱和膝内侧副韧带的某些生物力学特性受到不同程度的影响,使其在激烈运动中易于受伤。     

递增负荷运动过程中ER、PR水平的变化及其与性腺类固醇的关系

低性腺类固醇水平是AMi的重要特征之一.为了探讨低性激素环境下ER（雌激素受体）、PR（孕激素受体）的变化特点及激素与受体间的相互影响作用关系，并探讨其在运动性月经失调中的作用机制，本研究对递增负荷运动过程中及4个恢复期后，大鼠子宫和卵巢ER、PR及血清E2、P水平的变化进行了连续监测.结果显示，血清E2、P随运动负荷量的加大而逐渐降低，组织ER、PR水平随运动负荷量的加大呈渐进性升高.受体水平在停训后的恢复期内随着E2、P水平的回升，逐渐回落.结果表明，运动中受体水平的变化可能为非激素依赖性升高，这种升高或许是机体对长期运动训练造成的低性激素环境的一种适应性反应，可能是AMI病理机制过程的重要一环.恢复期受体水平的恢复与E2水平的升高具有直接关系。     

薯蓣皂甙元的分光光度法测定

以黄姜为主要对象研究了薯蓣皂甙元的定量测定方法.以乙酸酐与浓硫酸以191(体积比)为显色剂,CHCl3为溶剂,使皂甙元显色,用分光光度计在波长为397 nm处测定薯蓣皂甙元的含量.从植物中提取的皂甙元不需分离可直接测定,在1～50 mg/L范围内呈良好的线性关系.     

Anabolic–androgenic steroid use and correlates in Norwegian adolescents

This paper surveys the prevalence and correlates of anabolic androgenic steroids (AAS) use among Norwegian adolescents, and examines the degree to which sports participation is a mediating or moderating factor to well-known correlations between AAS use and problem behaviour. The data come from the “Ungdata” study, a cross-national youth survey system offered to all municipalities in Norway (response rate: 74%, N?=?77,572). The study demonstrates a lifetime prevalence of AAS use of 1.27% and a higher prevalence among boys (1.81%) than girls (0.76%). The analyses show that AAS use is clearly related to problem behaviour such as violence and other substance use. When controlling for problem behaviour, there are no correlations between AAS use and exercising in a sports club or on one’s own, whilst there is a weak positive correlation between AAS use and exercising in a gym or engaging in other forms of physical exercise such as dancing or martial arts. These patterns are more or less the same for boys and for girls. We conclude that adolescent AAS use is a low-prevalence phenomenon that primarily takes place in smaller subgroups of individuals who engage in other forms of problem behaviour as well.     

The Coercion Argument Against Performance-Enhancing Drugs

This paper is a critique of the coercion argument against performance-enhancing drugs (PEDs). According to this argument, lifting the ban on PEDs would undermine the autonomy of athletes by creating a situation where everyone must either use PEDs or not compete at the highest levels of sport. Four problems are raised for this argument and it is concluded that the argument fails. A variation on the coercion argument is also considered and rejected.     

Sociology of Physical Educator/Coaches: Personal Attributes Controversy

Abstract

In the first article, John W. Loy discusses the identification of sport sociology as an academic specialty and describes its stages of development. Loy identifies problems confronting future developments in sport sociology, in particular critical mass, academic status, and ideological orientation, both in physical education and in sociology. This analysis is followed by a sociological analysis of sports occupations, by George H. Sage. Sage discusses the personal attributes of physical educators and coaches, focusing on personality characteristics, leadership styles, attitudes, and value orientations. The paper is concluded with an attempt to resolve the controversy between the stereotype of physical educator/coach in the popular literature and the findings from empirical research.     

Measuring Issue-specific and Generic Frames in the Media’s Coverage of the Steroids Issue in Baseball

This study explored frames in the coverage of the steroids issue in baseball through a content analysis of traditional and new media. Using issue-specific and generic frames, it proposed a hybrid measurement tool that combines both approaches. Findings of the principal component analysis indicate the media framed the steroids issue primarily in terms of conflict and policy. Significant differences emerged between traditional and new media, on the one hand, and between the news and sports media, on the other. Besides these frames, the media also presented the steroids story as a public opinion and morality issue, using organizational officials, the public, and the media to convey these frames.     

合成类固醇制剂的使用及其对人体机能能力的影响

合成类固醇是一类拟雄性激素的人工合成药物。由于其对人体机能能力具有特殊的影响作用，一直是体育界最普遍使用的兴奋剂之一。本文对近年来运动员使用合成类固醇以及其对人体器官系统机能能力影响的有关研究进展加以综述讨论，指出合成类固醇对人体具有正反两方面的影响作用，应予以正确对待     

Constitutions,Institutions, and Games

We provide a new wrinkle to the Argument from Unfair Advantage, a rather popular one in the ethics of doping in sports discussions. But we add a new argument that we believe places the moral burden on those who favor doping in sports. We also defend our position against some important concerns that might be raised against it. In the end, we argue that for the time being, doping in sports ought to be banned until it can be demonstrated that our concerns can be satisfied.