MODULE: 3
BIOMECHANICS
AND BODY
MOVEMENTS
BIOMECHANICS
Biomechanics (from Ancient Greek: βίος "life" and
μηχανική "mechanics") is the study and science of
how biological organisms' systems and structures
react to external forces and stimuli. Biomechanics is
the science of movement of a living body, including
how muscles, bones, tendons, and ligaments work
together to produce movement. Biomechanics is part
of the larger field of kinesiology, specifically focusing
on the mechanics of the movement.
ELEMENTS OF BIOMECHANICS
• Motion The movement of a body or an
object across space. Speed and
acceleration are major elements of
• motion.
Force This is the push or pull that
causes a person or an object to
accelerate decelerate, stop, or change
direction.
ELEMENTS OF BIOMECHANICS
• Momentum This is the product of a weight and its velocity
when it is moved.
• Levers Our arms and legs function as levers; a lever has three
parts: the resistance arm, the fulcrum, and the axis of rotation.
• Balance This refers to stability. The alignment of the body's
center of gravity over the base of support is a fundamental
principle of balance. Many recreational and physical activities
necessitate a good sense of balance.
PRINCIPLES USED IN
• Dynamics. The study of moving
BIOMECHANICS systems that undergo
acceleration and deceleration
• Kinematics. The study of motion patterns deundergo
acceleration and decele syste including linear and angular
variations in velocity through time, position, displacement
speed, and acceleration.
• Statics. The study of systems at equilibrium, whether at
rest or moving at a constant
• Kinetics. The study of what generates motion and the
forces and durations at work velocity.
OBJECTIVES OF BIOMECHANIC
The primary objective of biomechanics of sport and
physical exercise is to increase performance in a particular
sport or physical exercise. In a broader sense, the
objective of biomechanics of sport and physical exercise is
to improve physical fitness. For example, the proper
biomechanics of running enables athletes to engage in
regular physical activity for extended periods of time
without being substantially hindered by injuries and their
effects.
OBJECTIVES OF BIOMECHANIC
The secondary objective of biomechanics of sport and
physical exercise is to make recommendations for injury
prevention and rehabilitation. This secondary objective of
sport biomechanics is inextricably linked to the first
objective since a healthy athlete will outperform an
injured athlete.
APPLICATIONS OF BIOMECHANICS
Biomechanics is a rapidly expanding field with numerous
applications. Here are some practical applications of
biomechanics:
• The study of movement is one of the most important
applications of biomechanics. Biomechanics can help us
understand how muscles function and move. This information
can be applied to diseases and disorders involving movement,
• such
Biomechanics
as arthritiscan
andalso be used
cerebral palsy.to design innovative medical
treatments. The usage of orthotics and prosthetics is one
example. Orthotics are devices used to improve body alignment,
whereas prosthetics are artificial limbs used to replace lost or
broken limbs. Both of these gadgets are based on biomechanical
principles.
APPLICATIONS OF BIOMECHANICS
• Biomechanics is also applied in the design of sports
equipment. This includes anything from shoes and clothing
to applies equipment like bats and balls. The purpose of
biomechanics in this situated clothing to sports equipment
tan improve athlete performance while reducing the risk of
injury (Sri Chaitanya College, 2022).
THANK
YOU
