Auswirkungen von körperlicher Aktivität auf demenzielle Erkrankungen

There is evidence for a positive influence of physical activity on dementia. However, the study design and data processing of current studies on physical activity in patients with dementia are heterogeneous, which makes it difficult to evaluate and compare their results. In our review, we categorized the studies based on different aspects of the training interventions and discussed these aspects in detail. Based on the existing literature, the length of an ideal training program is at least 16 weeks with two to three training sessions per week and qualified supervision and instruction. The workout program should contain at least two of the three components strength, endurance and balance. These recommendations should be confirmed in future studies with comparable study designs and homogeneous patient groups.     

JEWISH EDUCATION IN EXTREMIS: A PROLEGOMENON TO POSTMODERN JEWISH EDUCATIONAL THOUGHT

Abstract In this article the author argues that for 150 years Jewish education has negotiated the tensions between modernity and Judaism by means of liberal religion, ultra Orthodoxy, and secular Zionism. All three are in crisis today due to the rise of postmodernism. Jewish educational thought therefore needs to create new syntheses between Jewish and postmodern life. To this end the concepts of Aliyah, modernity, and exile should be reevaluated and Jewish education should embrace the goal of working with God toward redemption. For more than 150 years Jewish education has focused on the tensions between rabbinic Judaism and modernity. Each of the models for negotiating these tensions-religious liberalism, ultra orthodoxy, and secular Zionism-succeeded beyond the imaginations of those who conceived them. Yet, each is in a state of crisis today, resulting from a deconstruction of both the rabbinic and modern assumptions upon which they are based. Addressing these crises requires reevaluation of key assumptions about the educational significance of Israel, modernity, and exile in order to lay the groundwork for more productive interactions between the Jewish people and its heritage on the one hand and the postmodern condition into which we are emerging on the other.     

Performance and age of African and non-African runners in World Marathon Majors races 2000–2014

The age for the fastest marathoners is well investigated, but not the age and nationality of the fastest. We investigated the age of peak marathon performance for the annual top 100 women and men competing in four races of the “World Marathon Majors” (Boston, Berlin, Chicago and New York) and the “Stockholm Marathon” between 2000 and 2014 using mixed-effects regression analyses and one-way ANOVA. Race times of Ethiopian men decreased to 2:14 h:min, but remained unchanged for Kenyan (2:14 h:min), Moroccan (2:15 h:min) and South African (2:18 h:min) men. Race times in Ethiopian (2:34 h:min), Kenyan (2:29 h:min) and South African (2:49 h:min) women showed no changes. Age increased in Ethiopian and South African men to 29.0 ± 5.0 and 32.0 ± 1.0 years, respectively. Age for Kenyan (29.9 ± 2.0 years) and Moroccan (34.9 ± 3.9 years) men remained unchanged. Age remained unchanged for Ethiopian (26.5 ± 2.0 years), Kenyan (30.0 ± 0.8 years) and South African (36.3 ± 7.0 years) women. In summary, Ethiopian men improved marathon race times, but not Ethiopian women. Age increased in Ethiopian men, but not in Ethiopian women. For practical applications, female and male marathoners from Ethiopia were the youngest and the fastest.