Comparison of power and EMG during 6-s all-out cycling between young and older women

Abstract To investigate the effects of ageing on the neural control strategies governing sprint cycling on a friction-loaded cycle-ergometer, 10 older (aged 70-83yr) and 8 young (aged 19-35yr) healthy women completed seven 6-s all-out cycling trials against varying loads. Root mean square (RMS), median frequency and muscle fibre conduction velocity were determined from the vastus lateralis of the dominant limb during each pedal stroke. Peak power was 43% lower in the older group compared to the younger (p??0.05). ΔRMS from the first to the sixth second during each trial was found to increase significantly with the development of power output in both groups (p?相似文献   

Getting Generation Y to attend: Friends,interactivity and half-time entertainment

People from Generation Y, given their number and stage in the family life-cycle, represent a key emerging audience for major sports. The study focussed on the effect of friends and half time enhancements on likely attendance at matches. The sport domain was the Australian Football League (AFL), the elite Australian rules football competition. The enhancements being tested were half-time entertainments based on performers from well-known television talent shows, Australian Idol and It Takes Two. Scenarios with and without interactive participation, based on short messaging service (SMS) messages, were tested. The study used a general population sample of 909 Generation Y people in a traditional AFL market and one where AFL is not the major winter competition. Previous attendance and sport orientation were the major influences on attendance at major sports, including the AFL. Friends influenced likely attendance at a game, but no effects were found for half-time entertainments. People who attended matches with friends typically had social activities before and after the game. This suggested that one promotional strategy to expand existing markets was to find and engage the social networks of existing fans, making sport attendance a broader part of an overall social event.     

Butterfly Power in the Art of Mentoring Deaf and Hard of Hearing College Students

This article describes the ways in which critical events in the lives of college students may contribute to their career development and personal well being. These critical events are referred to as 'butterflies', adopting as a metaphor that concept from chaos theory which states that relatively small events can have large effects. The study analyzes these events and their effects from the perspective of the students' mentors. Results of the study are related to other concepts from chaos theory including bifurcation points, autopoiesis and emergence. The study explores both the different kinds of critical events students experience as well as how mentoring may help students to deal with them. The role of the mentor as interpreter of events, as change agent and as intervener are identified. The article argues that mentors need to be aware of the potential power of critical events in the career development of college students.     

Start talking and stop misbehaving

Abstract

School exclusions remain at a high level in the UK. Exclusions are the result of the interaction of complex factors, and schools are not equipped to tackle disaffection and disruptive behaviour on their own. The article describes the evaluation of a multidisciplinary home and school support project in a city borough. The project provides early intervention for primary school children at risk of developing serious emotional and behavioural problems and of subsequent exclusion. To this end the project works with children, parents/carers and schools in a holistic manner. The project also aims to improve home-school relationships, increase teacher understanding and integrate professional practice. Both mainstream and special settings have found the project to be of value.