Biomechanics is the study of movement and the application of mechanical principles to the human body. It helps athletes improve performance, technique and efficiency while reducing the risk of injury.
Biomechanics is a branch of sports science that studies human movement using the laws of mechanics. It examines how muscles, bones and joints work together during physical activities and sports performance.
The First Law states that an object remains at rest or continues moving in a straight line unless acted upon by an external force.
Example: A football remains stationary until kicked by a player.
The Second Law states that force is equal to mass multiplied by acceleration. Greater force produces greater acceleration.
Example: A stronger throw results in greater acceleration of a javelin.
The Third Law states that for every action there is an equal and opposite reaction.
Example: While running, the foot pushes backward against the ground and the body moves forward.
Equilibrium is the state of balance in which all forces acting on the body are balanced. Good balance is essential for successful sports performance.
Static equilibrium occurs when the body remains balanced while at rest.
Dynamic equilibrium occurs when the body maintains balance while moving.
The center of gravity is the point where the entire weight of the body is considered to be concentrated. Lowering the center of gravity improves stability and balance.
Friction is the force that opposes motion between two surfaces in contact. In sports, friction plays an important role in maintaining balance and controlling movement.
Projectile motion refers to the motion of an object that is thrown into the air and moves under the influence of gravity.
Examples include javelin throw, shot put, discus throw and basketball shooting.
Force is a push or pull that changes or tends to change the state of motion of an object.
In sports, force is essential for running, jumping, throwing and lifting.
A lever is a rigid bar that rotates around a fixed point called the fulcrum. Levers help the body perform movements efficiently.
The fulcrum lies between the effort and resistance.
Example: Neck movement.
The resistance lies between the fulcrum and effort.
Example: Standing on toes.
The effort lies between the fulcrum and resistance.
Example: Biceps curl.
Angular motion occurs when a body rotates around an axis. Gymnastics, diving and figure skating involve angular motion.
Linear motion occurs when a body moves in a straight path from one point to another.
Example: Sprinting in a straight line.
Biomechanics helps athletes understand movement scientifically and improve sports performance. Knowledge of force, friction, equilibrium, projectile motion and levers enables athletes and coaches to enhance techniques, prevent injuries and achieve better results in sports.