Success in elite cycling: A prospective and retrospective analysis of race results

The development of peak performances is a main research focus in sports science. It is unclear how many former top junior athletes achieve success in the elite class later. The aim of the present study was to examine the careers of athletes who participated in major junior or adult/elite cycling events using prospective and retrospective analysis of competition results. The official results of major junior (age < or = 18 years) and elite (age > 18 years) cycling races from 1980 to 2004 were analysed. Age-related aspects, career lengths, and success were compared between riders who presented results in both junior and elite races (JUNIOR ELITE) and riders who had no junior race results (ELITE ONLY). Altogether, 27,454 results of 8004 athletes from 108 countries were collected. We found that 29.4% of the elite athletes had participated in junior World Championships, and that 34% of the participants in junior World Championships later participated in major elite competitions. JUNIOR ELITE athletes are significantly more successful in several cycling disciplines and have their first and last elite result at a younger age than ELITE ONLY athletes. No difference was found in career lengths. The data presented here emphasize the importance of long-term training programmes in the development of peak performance in cycling.     

Physical and metabolic demands of training and match-play in the elite football player

In soccer, the players perform intermittent work. Despite the players performing low-intensity activities for more than 70% of the game, heart rate and body temperature measurements suggest that the average oxygen uptake for elite soccer players is around 70% of maximum (VO(2max). This may be partly explained by the 150 - 250 brief intense actions a top-class player performs during a game, which also indicates that the rates of creatine phosphate (CP) utilization and glycolysis are frequently high during a game. Muscle glycogen is probably the most important substrate for energy production, and fatigue towards the end of a game may be related to depletion of glycogen in some muscle fibres. Blood free-fatty acids (FFAs) increase progressively during a game, partly compensating for the progressive lowering of muscle glycogen. Fatigue also occurs temporarily during matches, but it is still unclear what causes the reduced ability to perform maximally. There are major individual differences in the physical demands of players during a game related to physical capacity and tactical role in the team. These differences should be taken into account when planning the training and nutritional strategies of top-class players, who require a significant energy intake during a week.     

Constitutional problems concerning admission to institutions of higher education—questions relevant to a German-American comparison

The growing relevance of constitutional law for problems of access to higher education became particularly clear through the Numerus-Clausus decisions of the German Federal Constitutional Court (restricted admission due to lack of capacity) and litigation before the US-Supreme Court (preferential treatment for applicants from minority groups). The constitutions of both countries—the Basic Law of the Federal Republic of Germany of May 23, 1949 and the Constitution of the United States of September 17, 1789, as amended—are based upon the same essential decisions regarding the fundamental characteristics and objectives of the State. The Federal Republic and the USA are democratic federations of states, committed to the pursuit of the common good, and defined in their form of government by the principle of the rule of law (secured above all by a catalog of basic human rights) as expressed through the doctrine of separation of powers. This article gives an overview of the university (especially its admission system) in both countries and analyses how the constitutions are applied to key problems of access to higher education. It leads to starting points for promising investigations into comparative (constitutional) law.

---

Zusammenfassung Der immer grössere Zusammenhang zwischen den Staatsverfassungen und den Zulassungsproblemen zeigte sich sehr deutlich im numerus clausus — Entscheidung des bundesdeutschen Verfassungsgerichtes (beschränkte Zulassung wegen Mangel an Studienplätzen) — und im Rechtsstreit des Obersten Gerichtshofes der Vereinigten Staaten (Vorzugsbehandlung für Bewerber von Minderheitsgruppen). Die Verfassungen beider Länder — das Grundgesetz der Bundesrepublik Deutschland vom 23. Mai 1949 und die Verfassung der Vereinigten Staaten vom 17. September 1798 in ihrer heute gültigen Abänderung — beruhen hinsichtlich der Grundzüge und Ziele des Staates auf den gleichen Entscheidungen. Die Bundesrepublik Deutschland und die USA sind beide demokratische Föderativstaaten, die den sozialen Wohlstand verwirklichen wollen und deren Regierungsform vom Grundsatz des Rechtsstaates bestimmt ist. Dieser findet seinen Ausdruck in der Doktrin der Machtteilung und ist vor allem durch eine Reihe von Menschengrundrechten gesichert. Dieser Artikel gibt eine Übersicht über die Universitäts- und vor allem die Zulassungssysteme beider Länder und analysiert, wie die Verfassungen angewandt werden, um die Probleme der Zulassung zur Hochschulbildung zu lösen. Er bietet Ausgangspunkte für vielversprechende vergleichende (konstitutionelle) Rechtsstudien.

---

Résumé Le rapport croissant des constitutions avec les problèmes d'accès à l'enseignement supérieur devint très évident à travers le numerus-clausus — décision du tribunal constitutionnel de la République Fédérale d'Allemagne (admission restreinte dûe au manque de places d'études) — et le litige de la Cour Suprême des Etats-Unis (traitement préférentiel accordé aux candidats de groupes minoritaires). Les constitutions des deux pays — la loi fondamentale de la République Fédérale d'Allemagne du 23 mai 1949 et la constitution des Etats-Unis du 17 septembre 1789, telle qu'elle a été amendée — reposent sur les mêmes décisions essentielles concernant les caractéristiques et objectifs essentiels de l'Etat. La République Fédérale d'Allemagne et les Etats-Unis sont des fédérations démocratiques d'états, qui se sont engagées pour la réalisation du bien-être social et dont la forme de gouvernement est définie par le principe de l'autorité de la loi, tel qu'il est exprimé par la doctrine de la séparation des pouvoirs et assuré avant tout par une série de droits fondamentaux de l'homme. Cet article donne une vue d'ensemble des sytèmes universitaires (et surtout des systèmes d'admission à ces universités) des deux pays et analyse comment les constitutions sont appliquées pour résoudre les problèmes d'accès à l'enseignement supérieur. Il mène à des points de départ pour des études juridiques comparées prometteuses (du point de vue constitutionnel).

     

网球比赛分析的几个关键点

许多运动队将全程比赛分析作为教练员的指导工具,研究己方和对方运动员的类型、战术和技术特点.网球项目中,拥有个人分析师的运动员并不多见,大部分运动员和教练员使用分析设备和程序提供的客观、可靠的反馈信息,自己进行赛前及赛后分析.很多教练员采用其他教练员的有效训练模式,因为不是所有人都有时间去分析1000h的大满贯录像来找出战术差异,但可利用他人的分析结果.赛事录像记录的客观数据提供了充足的反馈信息,教练员可根据这些反馈信息调整技战术,进行针对性的训练.     

Assessment of mentally retarded children with the Matrix Analogies Test-Short Form,Draw A Person: A quantitative scoring system,and the Kaufman Test of Educational Achievement

This study examined the utility of the MAT-SF and the DAP: A Quantitative Scoring System as screening instruments for mental retardation. In this study, 46 normals and 39 developmentally handicapped (DH) 4th- and 5th-grade students were group administered both screening tests and individually administered an achievement test, the KTEA. The results found the MAT-SF to correlate significantly with all areas of achievement for both groups, whereas the DAP did not correlate significantly with any areas of achievement for the normal group but correlated significantly with math, but not reading, for the developmentally handicapped students. The results support the use of the MAT-SF as a screening instrument for mental retardation, whereas the usefulness of the DAP is not as clear.