Preface

Writing or managing a scientific book, as it is known today, depends on a series of major factors such as selecting researchers, reviewing chapters, communicating with the researchers, and motivating the authors to achieve this objective of this publication. The idea of this book came after many years of work in biomechanics, health disease, and rehabilitation. From the exchange with the authors (four groups of authors from four different countries), we learned much from each other and we decided with the publisher to transfer this knowledge to readers interested in the impact of biomechanics today on the analysis of movement and optimization. The main objective is to include some chapters on the scope of biomechanical analysis and technologies in human behavior tasks. Biomechanics is present in our lives in different situations. The combination of the principles of mathematics, functional anatomy, and mechanics allows biomechanics to explore and understand biological problems. The tools and methods are able to quantify and improve the discriminate parameters characterizing movement in different cases such as at the sport level, work, and patients' daily lives. The concern is to effectively combine and coordinate biomechanical research and results in order to understand and improve human mechanics in different situations in our daily lives. For instance, with biomechanics and in correlation with other approaches we can analyse the contribution of tissues and organs that are responsible for various important functions, such as heart rate, peristaltic movement of the digestive tract, contractions of the blood vessels and skeletal muscle contractions. In addition, during the various daily activities, such as walking or running, biomechanics quantify the impact of the external environment that can transmit energy to the organs and tissues of the human body permitting efficiency. This book presents an understanding of biomechanics through chapters analyzing human behavior in sport and from a medical perspective. It offers a comprehensive range of principles, methods, techniques, and tools to provide the reader with clear knowledge of the impact of biomechanic processes. The text considers physical, mechanical, and biomechanical aspects and is illustrated by different key application domains such as sports performance, sports science, ergonomy science, gait and human posture, and musculoskeletal disorders in medicine.

Apart from the introduction, the first three chapters provide useful tools for measuring, generating, simulating, and processing in biomechanics with the clinical and experimental applications in medicine. The last section describes the application of biomechanics in sports performance. Engineers, researchers, and students from biomedical engineering and health sciences, as well as industrial professionals, can profit from this compendium of knowledge about biomechanics applied to the human body.

**II**

**Chapter 7 109**

**Chapter 8 133**

**Chapter 9 147**

Clinical and Experimental Biomechanical Studies Regarding

Kinematical Analysis of the Volleyball Auction in Preyouth and Youth Players of the Pichincha Sports Concentration

Early Cell Response to Mechanical Stimuli during TBI *by Mohammad Mehdi Maneshi and Susan Z. Hua*

*by Erik David García Lasluisa and Jefferson Michael Vela Rodríguez*

*by Paul-Dan Sirbu, Wilhelm Friedl, Dan Mihailescu, Liliana Savin, Andrei Scripcaru, Norin Forna, Mihnea Theodor Sirbu, Mihaela Pertea* 

Innovative Implants in Traumatology

*and Razvan Cosmin Tudor*
