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  • Book
    Jean-Benoit Morin, Pierre Samozino, editors.
    Summary: This book presents an account of innovative methods and, for most of them, gives direct and practical insights into how practitioners can benefit from their use in their everyday practice. It also explains how to interpret the data measured, and the underlying neuromechanical and biomechanical factors related to sports performance. Written and edited by the same researchers who proposed and validated these methods, this book not only presents innovative methods for an efficient training and testing process (most of which are based on very simple technology and data processing methods), but also discusses the associated background information. Although it is a young scientific discipline, sport biomechanics has taken on an important role in routine sports training, medicine and rehabilitation. It allows both a better understanding of human locomotion and performance and better design of training and injury prevention. In those processes, the testing of athletes is crucial, and the quality and quantity of the variables analysed directly influences the efficiency of physicians', coaches', physiotherapists' and other practitioners' interventions.

    Contents:
    Intro; Acknowledgements; Contents; 1 Introduction; 1.1 Optimizing Sport Performance Is like Cooking; 1.2 See the Big Picture First; 1.3 Simple Models, Simple Methods; References; Cycling; 2 Maximal Force-Velocity and Power-Velocity Characteristics in Cycling: Assessment and Relevance; Abstract; 2.1 Introduction; 2.2 Measurement of Mechanical Output (Force, Velocity and Power) During Sprint Pedaling; 2.3 Maximal Force- and Power-Velocity Relationships in Cycling; 2.3.1 Testing and Processing; 2.3.2 Meaning of the Indexes Extracted from the Relationships. 2.4 Methodological Consideration and Practical Advices2.4.1 Period of Averaging to Draw F-V or P-V Relationships and Duration of the Sprint; 2.4.2 Quality of the F-V and P-V Models: â#x80;#x9C;Calculatedâ#x80;#x9D; Versus â#x80;#x9C;Trueâ#x80;#x9D; Data; 2.4.3 Main Factors to Control that may influence Maximal Power Output; 2.5 Field Measurement in Ecological Condition; 2.5.1 Mathematical Model of Sprint Cycling; 2.5.2 Direct Measurement with Portable System; 2.6 Conclusion; References; 3 Mechanical Effectiveness and Coordination: New Insights into Sprint Cycling Performance; Abstract; 3.1 Introduction. 3.2 Torque Profile and Concept of Mechanical Effectiveness3.2.1 Production of Power over the Pedaling Cycle; 3.2.2 Mechanical Effectiveness: The Orientation of Pedal Force; 3.3 Joint-Specific Power and Interest in Inverse Dynamics; 3.3.1 Approach and Principle; 3.3.2 Information Regarding Force and Power Capabilities in Cycling; 3.4 Muscle Activity and Muscle Coordination; 3.4.1 The Specificity of Muscle Coordination in Sprint Cycling; 3.4.2 Coordination of Monoarticular and Biarticular Muscles; 3.4.3 Muscle Coordination and Torqueâ#x80;#x93;Velocity Relationship. 3.5 Practical Implications and Perspectives for Testing and Performance3.5.1 Pedaling Effectiveness, Muscle Coordination and Performance: Whatâ#x80;#x99;s the Link?; 3.5.2 Outcomes Regarding the Meaning of Forceâ#x80;#x93;Velocity and Powerâ#x80;#x93;Velocity Relationships in Cycling and Perspectives for Testing and Training; 3.6 Conclusion; References; Ballistic Movements of Upper and Lower Limbs; 4 A Simple Method for Measuring Lower Limb Force, Velocity and Power Capabilities During Jumping; Abstract; 4.1 Introduction; 4.2 Force, Velocity, Power Mechanical Profile. 4.2.1 Force-Velocity and Power-Velocity Relationships in Jumping4.2.2 Force-Velocity Mechanical Profile in Jumping; 4.3 Reference Testing Methods; 4.3.1 Methodological Considerations; 4.3.2 Laboratory Methods; 4.3.3 Field Methods; 4.3.4 Limitations of the Reference Methods; 4.4 A Simple Method for Measuring Force, Velocity and Power During Jumping; 4.4.1 Theoretical Bases and Equations; 4.4.2 Limits of the Method; 4.4.3 Validation of the Method; 4.5 Technologies and Input Measurements; 4.5.1 Jump Height; 4.5.2 Push-off Distance; 4.6 Practical Applications; 4.7 Conclusion; References.
    Digital Access Springer 2018
  • Article
    Kuempel PL, Duerr SA, Maglothin PD.
    J Bacteriol. 1978 Jun;134(3):902-12.
    Escherichia coli CRT4624-P2sig5 is a dnaA mutant in which integration of the prophage P2sig5 has occurred at the attP2II site (min 85). This strain was integratively suppressed, and when cells were shifted to 42 degrees C replication was initiated at a site in or near the P2 prophage. Initially, this replication occurred primarily in the direction that corresponds to the clockwise direction on the genetic map. Replication also occurred in the counterclockwise direction, but the initiation of replication in this direction occurred approximately 40 min later than the initiation of replication in the other direction. Because of this delay, the replication forks that traveled in the clockwise direction were the first to arrive in the region of the replication terminus. These replication forks ceased replication near the aroD locus (min 37), and it is proposed that the replication terminus is between the aroD and rac loci (min 31). A model is proposed for the cycle of chromosome replication in this strain at 42 degrees C.
    Digital Access Access Options
  • Journal
    Financial Advisory Service of the American Council on Education.
    Print [no. 1- Nov. 1935-