Bio-mechanics is the application of mechanical principles to study living organisms. It has several branches including deformable body mechanics, fluid mechanics, and rigid body mechanics. Deformable body mechanics examines how forces distribute within materials and can study effects at different body system levels. Fluid mechanics analyzes forces in fluids like blood flow. Rigid body mechanics assumes bodies are rigid and ignores small deformations, suitable for studying major body segments. Dynamics examines accelerated motion and divides into kinematics, studying motion measurements, and kinetics, analyzing internal and external forces. Anthropometry measures human body size, mass, shape and properties both qualitatively and quantitatively. Bio-mechanists address scientific questions about motion and forces in living systems.

1. Bio-Mechanics

2. WHAT IS BIOMECHANICS?
Application of mechanical
principles in the study of
living organisms

3. What is Mechanics?
Mechanics is the branch of physics that
studies the motion of objects and the
forces that cause that motion.

4. Braches of Mechanics
Deformable-body
Fluids
Rigid-body

5. Deformable-body
Deformable-body mechanics studies how
forces are distributed within a material, and can
be focused at many levels (cellular to
tissues/organs/ system) to examine how forces
stimulate growth or cause damage

6. Fluid mechanics
it is concerned with the forces in fluids (liquids
and gasses).
A biomechanist would use fluid mechanics to
study heart valves, swimming, or adapting
sports equipment to minimize air resistance.

7. Rigid-body Mechanics
The object being analyzed is assumed to be rigid
and the deformations in its shape so small they can
be ignored. While this almost never happens in any
material, this assumption is quite reasonable for
most biomechanical studies of the major segments
of the body

9. Statics
The study of objects at rest or in uniform (constant)
motion.

10. Dynamics
1.Branch of mechanics dealing with systems
subject to acceleration
2.The study of objects being accelerated by the
actions of forces. Most importantly,
Dynamics is divided into two branches:

11. Kinematics
In kinematics the motions of objects are usually
measured in linear (meters, feet, etc.) or angular
(radians, degrees, etc.) terms.

12. Kinetics is the study of forces, including internal
forces (muscle forces) and external forces (the forces
of gravity and the forces exchanged by bat and ball).
kinetics
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13. Anthropometry
A head-measuring tool designed for
anthropological research in the early 1910s.
Theodor Kocher was inventor of the craniometer
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The science that deals with the measure of size,
mass, shape, and inertia properties of the human
body

14. Qualitative: pertaining to quality (without the
use of numbers) e.g. strong, skillful, agile, flexible, fast
Quantitative: involving numbers
For example: running speed = 5 m/s
height = 1.75 m mass = 68.2 kg
Qualitative vs. Quantitative
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16. Quantitatively, the robot missed the coffee cup by 15 cm.
Qualitatively, he malfunctioned.
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17. Scientific inquiry addressed by
bio-mechanists

19. Thanks