Krzysztof Maćkała, łukasz JÓŹwiak and Jacek Stodółka
Introduction. Distance running performance is a simple function of developing high speeds and maintaining this speed as long as possible. Thus a correct running technique becomes an important component of performance. Technique is effective if the competitor can reach a better performance result with the same or lower energy consumption. The purpose of this investigation was to examine a six weeks application explosive type strength training on lower extremities power and maximum speed performance improvement in order to facilitate running technique in sub-elite male middle-distance runner. Material and methods. A sub-elite runner performed twice a week special exercises and running drills. He completed a pre and post-training jumping (SJ, CMJ, standing long jump, standing five jump) and speed (20 m from standing and flying start) field tests. For kinematical analysis, a video (SIMI Motion System) of a 10 m sprint from a 20 m flying start was collected. Results. Improvement occurred in all measurements but strong changes were evident in the 10 m from 20 flying start and in stride frequency from 3.90 to 4.01 Hz, due to decreasing of ground contact time from 160 to 156 ms. No strong evidence in the participant's running technique changes. Conclusion. This proved that six weeks of dynamic type strength program seems to improve neuromuscular characteristics of running speed and explosive power and no changes in running technique.
Beatriz Bachero-Mena, Fernando Pareja-Blanco, David Rodríguez-Rosell, Juan Manuel Yáñez-García, Ricardo Mora-Custodio and Juan José González-Badillo
to explain the 800 m performance ( Craig and Morgan, 1998 ; Duffield et al., 2005 ; Hill, 1999 ; Lacour et al., 1990 ; Spencer and Gastin, 2001 ). Actually, very few studies have examined the importance of different neuromuscular variables on middle-distancerunning performance ( Hudgins et al., 2013 ). In addition, it has been suggested that strength training could lead to enhanced long-term endurance capacity both in well-trained individuals and elite endurance athletes ( Aagaard and Andersen, 2010 ). Thus, the purpose of this investigation was to examine the
Marco Gervasi, Anna Rita Calavalle, Stefano Amatori, Eugenio Grassi, Piero Benelli, Piero Sestili and Davide Sisti
To determine the relationship between fatigue and post-activation potentiation, we examined the effects of sub-maximal continuous running on neuromuscular function tests, as well as on the squat jump and counter movement jump in endurance athletes. The height of the squat jump and counter movement jump and the estimate of the fast twitch fiber recruiting capabilities were assessed in seven male middle distance runners before and after 40 min of continuous running at an intensity corresponding to the individual lactate threshold. The same test was then repeated after three weeks of specific aerobic training. Since the three variables were strongly correlated, only the estimate of the fast twitch fiber was considered for the results. The subjects showed a significant improvement in the fast twitch fiber recruitment percentage after the 40 min run. Our data show that submaximal physical exercise determined a change in fast twitch muscle fiber recruitment patterns observed when subjects performed vertical jumps; however, this recruitment capacity was proportional to the subjects’ individual fast twitch muscle fiber profiles measured before the 40 min run. The results of the jump tests did not change significantly after the three-week training period. These results suggest that pre-fatigue methods, through sub-maximal exercises, could be used to take advantage of explosive capacity in middle-distance runners.
control problems using hp-adaptive Gaussian quadrature collocation methods and sparse nonlinear programming. ACM Transactions on Mathematical Software (TOMS), 41(1), 1.
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Fernando González-Mohíno, Jesús Santos del Cerro, Andrew Renfree, Inmaculada Yustres and José Mª González-Ravé
semi-finals, possibly demonstrating a will to win each race. Based on this finding, it can be suggested that superior athletes tend to achieve higher finishing positions in both preliminary qualifying rounds and finals showing a will to win each race instead of qualifying as faster losers. In this study, we define a ‘high position’ as being one of the first three finishers. Such a position is required to achieve a podium finish in finals, or typically to achieve a qualification from preliminary heats.
The 800-m middledistancerunning event is complex, partly
Felipe García-Pinillos, Víctor Manuel Soto-Hermoso and Pedro Ángel Latorre-Román
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Mathias Wolfrum, Christoph Alexander Rüst, Thomas Rosemann, Romuald Lepers and Beat Knechtle
fall and rise of the gender difference in elite anaerobic performance 1952-2006. Med Sci Sports Exerc, 2007; 39: 534-540
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Tanaka H, Seals DR. Age and gender interactions in physiological functional capacity: insight from
dynamic joint ROM during a running stride.
The present study specifically investigated the influence of FR on middledistancerunning. The findings may be limited to that activity or individuals conditioned for that intensity and duration of exercise. Another limitation is that the FR protocol used in the present study took approximately 10 min to complete. FR bouts of different durations may alter outcomes. The findings of this investigation may be limited to middledistancerunning on a treadmill as well. While subjects were provided with a familiarization session
Cesare Altavilla, Roberto Cejuela and Pablo Caballero-Pérez
running and swimming events. Int J Sports Physiol Perform 2015; 10(3): 369–73. https://doi.org/10.1123/ijspp.2014-0207 10.1123/ijspp.2014-0207 25230099
Mytton GJ Archer DT Turner L Skorski S Renfree A Thompson KG St Clair Gibson A Increased variability of lap speeds: differentiating medalists and nonmedalists in middle-distancerunning and swimming events Int J Sports Physiol Perform 2015 10 3 369 73 https://doi.org/10.1123/ijspp.2014-0207
Perez P, Llana S, Brizuela G, Encarnacion A. Effects of three feedback conditions on