Short-term heat acclimation prior to a multi-day desert ultra-marathon improves physiological and psychological responses without compromising immune status     

Ashley G. B. Willmott  Mark Hayes  Kirsty A. M. Waldock  Rebecca L. Relf  Emily R. Watkins  Carl A. James 《Journal of sports sciences》2017,35(22):2249-2256

Multistage, ultra-endurance events in hot, humid conditions necessitate thermal adaptation, often achieved through short term heat acclimation (STHA), to improve performance by reducing thermoregulatory strain and perceptions of heat stress. This study investigated the physiological, perceptual and immunological responses to STHA prior to the Marathon des Sables. Eight athletes (age 42 ± 4 years and body mass 81.9 ± 15.0 kg) completed 4 days of controlled hyperthermia STHA (60 min·day^?1, 45°C and 30% relative humidity). Pre, during and post sessions, physiological and perceptual measures were recorded. Immunological measures were recorded pre-post sessions 1 and 4. STHA improved thermal comfort (P = 0.02), sensation (P = 0.03) and perceived exertion (P = 0.04). A dissociated relationship between perceptual fatigue and T_re was evident after STHA, with reductions in perceived Physical (P = 0.04) and General (P = 0.04) fatigue. Exercising T_re and HR did not change (P > 0.05) however, sweat rate increased 14% (P = 0.02). No changes were found in white blood cell counts or content (P > 0.05). Four days of STHA facilitates effective perceptual adaptations, without compromising immune status prior to an ultra-endurance race in heat stress. A greater physiological strain is required to confer optimal physiological adaptations.  相似文献   

An analysis of the value of multiple mentors in formalised elite coach mentoring programmes     

Rebecca Sawiuk  William. G. Taylor  Ryan Groom 《Physical Education & Sport Pedagogy》2017,22(4):403-413

Background: Within the context of sports coaching and coach education, formalised mentoring relationships are often depicted as a mentor–mentee dyad. Thus, mentoring within sports coaching is typically conceptualised as a one-dimensional relationship, where the mentor is seen as the powerful member of the dyad, with greater age and/or experience [Colley, H. (2003). Mentoring for Social Inclusion. London: Routledge].

Aim: The aim of this study was to explore the concept of a multiple mentor system in an attempt to advance our theoretical and empirical understanding of sports coach mentoring. In doing so, this paper builds upon the suggestion of Jones, Harris, and Miles [(2009). “Mentoring in Sports Coaching: A Review of the Literature.” Physical Education and Sport Pedagogy 14 (3): 267–284] who highlight the importance of generating empirical research to explore current mentoring approaches in sport, which in turn can inform meaningful formal coach education enhancement. The significance of this work therefore lies in opening up both a practical and a theoretical space for dialogue within sports coach education in order to challenge the traditional dyadic conceptualisation of mentoring and move towards an understanding of ‘mentoring in practice’.

Method: Drawing upon Kram’s [(1985). Mentoring at Work: Developmental Relationships in Organisational Life. Glenview, IL: Scott Foresman] foundational mentoring theory to underpin a multiple mentoring support system, 15 elite coach mentors across a range of sports were interviewed in an attempt to explore their mentoring experiences. Subsequently, an inductive thematic analysis endeavoured to further investigate the realities and practicalities of employing a multiple mentoring system in the context of elite coach development.

Results: The participants advocated support for the utilisation of a multiple mentor system to address some of the inherent problems and complexities within elite sports coaching mentoring. Specifically, the results suggested that mentees sourced different mentors for specific knowledge acquisition, skills and attributes. For example, within a multiple mentor approach, mentors recommended that mentees use a variety of mentors, including cross-sports and non-sport mentors.

Conclusion: Tentative recommendations for the future employment of a multiple mentoring framework were considered, with particular reference to cross-sports or non-sport mentoring experiences.  相似文献   

Negotiating values in the creative industries: fairs,festivals and competitive events     

Jennie Jordan 《Cultural Trends》2014,23(1):73-75

  相似文献   

Piracy,Geoblocking, and Australian Access to Niche Independent Cinema     

Rebecca Beirne 《Popular Communication》2015,13(1):18-31

Online audiovisual piracy cannot be properly understood if divorced from its context. This article uses the availability of lesbian-focused films in Australia as a lens through which to consider the relationship between online audiovisual piracy and industry geoblocking practices. It is argued that artificial control through internet geoblocking can limit potential global sales by restricting universal availability of certain films. Anti-piracy discourses around lost sales and reduced profits for film industries are complicated by piracy contexts where there is no mechanism for viewers to make legal online purchases. When looking beyond Hollywood, the diverse purposes of independent and minority filmmakers provide a more complex understanding of piracy overall. This article proposes a more nuanced approach to online film piracy that emphasizes context, taking into consideration that pirate culture is formed by an extensive but inchoate network of individuals with diffuse motivations that have differential impacts upon the industry.  相似文献   

Speaking Personally—With Erin Knight     

Daniel T Hickey  Rebecca C Itow  Andi Rehak  Katerina Schenke  Cathy Tran 《The American journal of distance education》2013,27(2):134-138

  相似文献   

The mulberry bird: an adoption story     

Dr Rebecca Kirkbride 《Educational Psychology in Practice》2013,29(4):438-439

  相似文献   

From the Editor: From Discovery to Delivery     

Rebecca Donlan 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(5):217-218

  相似文献   

National report on identification     

Susanne Richert  James J. Alvino  Rebecca C. McDonald 《Roeper Review》2013,35(2)

  相似文献   

ADMINISTRATIVE PRESSURE TO PRACTICE UNETHICALLY AND BURNOUT WITHIN THE PROFESSION OF SCHOOL PSYCHOLOGY     

Dana E. Boccio  Gaston Weisz  Rebecca Lefkowitz 《Psychology in the schools》2016,53(6):659-672

This investigation involved the surveying of school psychology practitioners (N = 291) to determine the possible existence of a relationship between administrative pressure to practice unethically and impaired occupational health, as manifested in elevated levels of burnout, job dissatisfaction, and intent to exit the workforce. Almost one‐third of participants claimed to have been pressured to behave unethically, with directives most commonly consisting of instructions to withhold recommendations for support services and to agree with inappropriate special education placement decisions. Practitioners who experienced administrative pressure reported higher levels of burnout, less satisfaction with their current position and the profession, and a greater desire to leave their job and the field of school psychology. The findings are presented within the context of current and projected shortages of practicing school psychologists. Implications for preventing burnout and promoting school psychologists’ occupational well‐being are discussed.  相似文献   

Educational Imagination in a Period of “Reconfiguration”     

Rebecca Martusewicz 《Educational Studies A Journal of the American Educational Studies Association》2013,49(4):299-302

  相似文献