Written by the foremost authority on the subject, Kinetics of Human Motion is the sequel and companion to the 1998 text Kinematics of Human Motion. World-renowned biomechanics expert Vladimir Zatsiorsky has written Kinetics of Human Motion to be an indispensable reference for human movement professionals.
Although biomechanical analysis of human motion can be conducted on different structural levels, this book focuses on the examination of forces that create entire body motion. By examining the forces that create entire body motion, the text develops the biomechanical knowledge of the reader. Kinetics of Human Motion is divided into six chapters that cover external contact forces, statics, kinematic chains, inertial characteristics of the body, dynamics of human motion and work, and energy in human motion. Readers will learn about the following:
Three-dimensional analysis of forces and movements
• Kinetics of multilink chains
• Stability of equilibrium
• Inertial properties of the human body
• Joint torques and forces
• Inverse problem of dynamics
This text is advanced and assumes some knowledge of algebra and calculus, yet the emphasis is clearly on understanding physical concepts, not mathematical formulae. The book features helpful refreshers of basic mathematical concepts and kinesiology and other movement-related topics to facilitate reader comprehension of the topics presented.
Kinetics of Human Motion is packed with illustrations and equations to help clarify and reemphasize the main concepts; it also contains review problems, applied research problems, end-of-chapter questions, and references throughout. For a more rounded understanding of the concepts, each chapter includes “From the Literature” elements, which support the theories discussed while offering other viewpoints.
This is the second book in a three-book series that will cover the entire range of biomechanics of human motion. Kinematics of Human Motion was the first book; this book, Kinetics of Human Motion, covers the analysis of entire body motion; the muscle biomechanics will be covered in the third volume of the series.
Notation and Conventions
Chapter 1. External contact forces
1.1. Forces and couples
1.2. Friction forces and air resistance
1.3. Local biological effects of contact forces
1.5. Questions for review
Chapter 2. Statics of multilink serial chains: Transformational analysis
2.1. Torque and force actuators at revolute joints
2.2. Transformational analysis
2.3. Control of external contact forces
2.4. Duality of statics and kinematics: Null spaces
2.6. Questions for review
Chapter 3. Statics of multilink chains: Stability of equilibrium
3.1. Stiffness of passive and active objects
3.2. Apparent endpoint stiffness
3.3. Apparent joint stiffness
3.4. Transformational analysis
3.5. Why is it so difficult to determine joint stiffness?
3.6. Stiffness in motor control models
3.8. Questions for review
Chapter 4. Inertial properties of the human body
4.1. Basic mechanics theory
4.2. Inertial properties of the entire human body
4.3. Inertial properties of the body parts
4.4. Subject-specific inertial characteristics
4.5. Control of body inertia in human movement
4.7. Questions for review
Chapter 5. Joint torques and forces: The inverse problem of dynamics
5.1. Basic dynamic equations
5.2. Inverse dynamics of simple planar chains
5.3. Movement in three dimensions
5.4. Joint torques and joint forces in human motion
5.6. Questions for review
Chapter 6. Mechanical work and energy in human movement
6.1. The concept of work
6.2. Work at a joint and work on a body segment
6.3. Energy, work, and power in multilink kinematic chains
6.4. Minimizing of the energy expenditure for motion
6.6. Questions for review
Appendix 1. Inertial properties of cadavers Appendix 2. Inertial properties measured in living subjects Appendix 3. Geometric modeling of human body segments
About the Author
Text for graduate or upper-undergraduate students in human movement sciences. Reference for biomechanists, sports biomechanists, motor behavior specialists, and biomedical and rehabilitation specialists.
Vladimir M. Zatsiorsky, PhD, is a world-renowned expert in the biomechanics of human motion. He has been a professor in the department of kinesiology at Pennsylvania State University since 1991 and is director of the university's biomechanics laboratory.
Before coming to North America in 1990, Dr. Zatsiorsky served for 18 years as professor and chair of the department of biomechanics at the Central Institute of Physical Culture in Moscow. He has received several awards for his achievements, including the Geoffrey Dyson Award from the International Society of Biomechanics in Sports (the society's highest honor) and the USSR's National Gold Medal for the Best Scientific Research in Sport in 1976 and 1982.
Dr. Zatsiorsky has authored or coauthored more than 250 scientific papers. He has also authored or coauthored 11 books on various aspects of biomechanics that have been published in English, Russian, German, Italian, Spanish, Portuguese, Chinese, Japanese, Polish, Romanian, Czech, Serbo-Croatian, and Bulgarian. His latest books are Science and Practice of Strength Training, Kinematics of Human Motion, and Biomechanics in Sport (editor).