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Post‐Activation Potentiation: Is there an Optimal Training Volume and Intensity to Induce Improvements in Vertical Jump Ability in Highly‐Trained Subjects?

, 2009 ). Acute increases in performance can be substantially affected by the balance between PAP mechanisms and fatigue ( Chatzopoulos et al., 2007 ; Jones and Lees, 2003 ; Scott and Docherty, 2004 ; Young et al., 1998 ). These “opposing effects” have usually produced inconsistent findings and unclear training guidelines ( Lowery et al., 2012 ; Mola et al., 2014 ; Sale, 2002 ). Moreover, it appears that this balance may be altered by several factors, such as training experience, length of the rest period prior to subsequent exercise, and volume and intensity of

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Effect of Three Technical Arms Swings on The Elevation of the Center of Mass During a Standing Back Somersault

: ISB ; 2010 Domire ZJ, Challis JH An induced energy analysis to determine the mechanism for performance enhancement as a result of arm swing during jumping. Sports Biomechanics, 2010; 9(1): 38-46. Duboy J, Junka A, Lacouture P. Human mechanics: Sports and movements analysis in two dimensions. Paris, Revue EP.S Edition, 69-74; 1994 Faul F, Erdfelder E. GPOWER: A Priori, Post-Hoc, and Compromise Power Analyses for MS-DOS (Computer Program). Bonn, FRG: Bonn University, Department of Psychology; 2004 Hara M

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Evolution of perceived cohesion and efficacy over the season and their relation to success expectations in soccer teams

groups. In J. L. Duda (Ed.), Advances in sport and exercise psychology measurement . Morgantown, WV: Fitness Information Technology, 1998, 213-226 Carron AV, Colman MM, Wheeler J, Stevens D. Cohesion and performance in sport: A meta-analysis. J Sport Exercise Psy , 2002b; 24: 168-188 Carron AV, Hausenblas HA, Eys MA. Group dynamics in sport (3rd Ed.), Morgantown, WV: Fitness Information Technology; 2005 Carron AV, Widmeyer WN, Brawley LR. The development of an instrument to assess cohesion in sport teams: The Group

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Player Load and Metabolic Power Dynamics as Load Quantifiers in Soccer

important aspects for fitness coaches to consider ( Eirale et al., 2013 ). Correct planning and monitoring of training demands is crucial to optimize performance of top‐level players (Gómez‐Díaz et al., 2013). The internal training load is the physical response to stress factors. Heart rate telemetry, oxygen consumption, rating of perceived exertion (RPE) or blood lactate are commonly used methods for assessing internal loads ( Borresen and Lambert, 2009 ). The external training load is the objective measurement of the work performed by the players, and is classified in

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Fitness Profiles of Elite Portuguese Rugby Union Players

References Adendorff L, Pienaar AE, Malan DDJ, Hare E. Physical and motor abilities, rugby skills and anthropometric characteristics: A follow-up investigation of successful and less successful rugby players. J Hum Movement Stud, 2004; 46(6): 441-457 Alemdaroglu U. The Relationship Between Muscle Strength, Anaerobic Performance, Agility, Sprint Ability and Vertical Jump Performance in Professional Basketball Players. J Hum Kinet, 2012; 31: 149-158 Argus CK, Gill ND, Keogh JWL. Characterization of the Differences in Strength and Power between Different

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Proprioceptive Neuromuscular Facilitation (PNF): Its Mechanisms and Effects on Range of Motion and Muscular Function

References Bonnar BP, Deivert RG, Gould TE. The relationship between isometric contraction durations during hold-relax stretching and improvement of hamstring flexibility. J Sport Med Phys Fit, 2004; 44(3):288-226. Bradley PS, Olsen PD, Portas MD. The effect of static, ballistic, and proprioceptive neuromuscular facilitation stretching on vertical jump performance. J Strength Cond Res / Natl Str Cond Assoc J, 2007; 21(1):223-226 Caplan N, Rogers R., Parr MK, Hayes PR. The effect of

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High Speed Running and Sprinting Profiles of Elite Soccer Players

Introduction Studies continue to investigate the physical and technical performances of elite soccer players during official games across congested periods ( Bradley et al., 2009 ; Rampinini et al., 2007 ; Rey et al., 2010 ) in accordance with positional roles ( Bradley et al., 2009 ; Di Salvo et al., 2007 ; Rampinini et al., 2007 ) or depending on the match conditions. In particular, Rampinini et al. (2007) observed that the work rate of professional soccer players was significantly influenced by the activity profile of their opponents. According

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Do G894T Polymorphisms of Endothelial Nitric Oxide Synthase 3 (NOS3) Influence Endurance Phenotypes?

References Ahmetov II, Rogozkin VA, Genes, Athlete Status and Training - An Overview in Genetics and Sports (ed: Callins M). Med Sport Sci. Basel, Karger, 2009, vol 54, pp 43-71. Borggrefe M, Wolpert C, Antzelevitch C, Veltmann C, Giustetto C, Gaita F, Schimpf R. Short QT syndrome. Genotype-phenotype correlations. J Electrocardiol 2005: 38: 75-80. Bray MS, Hagberg JM, Perusse L, Rankinen T, Roth SM, Wolfarth B, Bouchard C (2009) The human gene map for performance and health

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Neuromuscular Compression Garments: Effects on Neuromuscular Strength and Recovery

References Ali A, Caine MP, Snow BG. Graduated compression stockings: physiological and perceptual responses during and after exercise. J Sports Sci, 2007; 25(4): 413-419. Ali A, Creasy RH, Edge JA. Physiological effects of wearing graduated compression stockings during running. Eur J Appl Physiol, 2010; 109(6): 1017-1025. Ali A, Creasy RH, Edge JA. The Effect of Graduated Compression Stockings on Running Performance. J Strength Cond Res; 2011; 25

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The Influence of Situational Variables on Ball Possession in the South African Premier Soccer League

Introduction Over the years, performance analysis has grown drastically and has a vital role to play in the modern game of soccer ( Carling et al., 2005 ). Preparing soccer teams to play at the professional level is a multifaceted process because it is reliant on numerous individual and team-related characteristics. For many years, the most successful soccer teams in European competitions have adopted a style of play based on ball possession (also known as an indirect playing style), allowing them to dictate the play by controlling the game ( Bradley et al

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