The aim of this study was to examine Icelandic elite athletes’ experiences in regard to the Olympic Games (OG)-2012. More specifically the focus was on the OG as a career transition process covering several phases in the Olympic cycle, having the Games as its culmination and followed by a career change. The athletic career transition model, the holistic lifespan perspective and temporal structure of the Olympic cycle guided retrospective interviews with six Icelandic athletes who (some years ago) were candidates to take part in the OG-2012. Among the six participants three were successful in the OG-2012, one was less successful and two participants prepared but were not qualified for the OG. Holistic-content and categorical-content analyses resulted in: (a) six core narratives describing and interpreting each athlete’s individual pathway through preliminary/basic preparation, selection process, Olympic season, the Games, and post-Games periods, and (b) sixteen themes following athletes’ major foci in each transition phase (e.g., “gaining international experience” and “getting financial support” in the preliminary/basic preparation, etc.) and also the transition resources perceived by athletes as necessary during the whole Olympic cycle (“prioritizing sports while balancing sport with work/school”, “organizational support” and “family support”).  Results are discussed in relation to the theoretical frameworks, previous research, and Icelandic context.

The use of the squat exercise (and its derivatives) in gym-based settings is widespread owing to perceived functional performance enhancing effects. In particular, there has been preponderance amongst practitioners with loads that maximise power outputs (Pmax) based on a perception that mechanical peak power is directly related to explosive functional performance such as sprinting ability. The optimal muscular quality associated with squats remains elusive though, mostly due to methodological limitations in the research. The four experimental studies in this thesis sought to quantify the kinetic and kinematic outputs of a machine squat-jump and their relationship to sprinting ability, both descriptively and across a training period. First, an analysis of the kinetic and kinematic outputs of a machine squat-jump across a spectrum of loads was performed, with an emphasis on power output. Then, the relationship of these outputs with sprint ability was investigated. Correlations do not imply cause and effect, thus a training intervention was undertaken to quantify the relationships of the change in performance measures over time, and allow a comparison of different training protocols. Specifically, one training group was prescribed training loads based on individually determined peak power outputs, and the other based on traditional maximal strength training loads. Because the intention of this thesis was to enhance our knowledge of best strength training practice for elite sporting performance, highly trained athletes were specifically chosen as subjects, cognizant of the population specific nature of training adaptation. In study one, it was determined that the point on the power-load spectrum where peak and mean power occurred in the machine squat-jump was 21.6 ± 7.1 %1RM (mean ± SD) and 39.0 ± 8.6 %1RM respectively although there was considerable individual variation in these points. A broad plateau in power outputs was evident for most subjects with at most a 9.9% (90% confidence limits ±2.4%) difference in peak or means power at loads up to 20 %1RM either side of the peak. Studies two and three established that, of the multiple kinetic and kinematic measures investigated, only 1RM strength, work and impulse (all relative to body mass) provided any indication of useful kinetic / kinematic outputs that were potentially worthwhile developing for enhancing sprint performance, albeit with only moderate correlations (r = ~ -0.3). Additionally, the intercorrelations between maximal strength and explosive kinetic and kinematic measures were only moderate (r = ~0.3), casting doubt on the common practice of pursuing high 1RM strength with the intention of improving explosive muscle performance. The training study provided evidence that training at the load that maximised individual peak power output was no more effective for improving sprint ability than training at heavy loads and the changes in kinetic and kinematic outputs were not usefully related to changes in sprint ability.

Diss. (sammanfattning) Umeå : Univ., 2004. / Härtill 4 uppsatser.

Diss. (sammanfattning) Stockholm : Karol. inst., 2005. / Härtill 4 uppsatser.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1995. / Vita. Abstract. Includes bibliographical references (leaves 27-31). Also available via the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1997. / Typescript. Vita. Includes bibliographical references (leaves 97-105). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1997. / Typescript. Vita. Includes bibliographical references (leaves 97-105). Also available on the Internet.

Thesis (M.S.)--Slippery Rock University, 2004. / Includes bibliographical references. Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (M.S.)--Slippery Rock University of Pennsylvania, 2003. / Includes bibliographical references (leaves 25-26). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (M.S.)--Ohio University, June, 2009. / Title from PDF t.p. Includes bibliographical references.