This document discusses the body's systems involved in motion. It describes the joints, muscles, respiratory and cardiovascular systems. It then outlines some immediate physiological responses to exercise training like changes in heart rate, ventilation rate, stroke volume and cardiac output. Finally, it discusses different types of motion like linear and velocity, as well as concepts like momentum, balance, stability, and fluid mechanics.

1. THE BODY IN MOTION

3. JOINTS

4. MUSCULAR

5. RESPIRATORY

6. THE HEART

11. IMMEDIATE PHYSIOLOGICAL RESPONSES TO
TRAINING
• HEART RATE – the number of heartbeats per
minute.
• VENTILATION RATE – the volume of air passing into
and out of the lungs per minute.
• STROKE VOLUME – the volume of blood pumped
from a ventricle of the heart in one beat.
• CARDIAC OUTPUT – the amount of blood the heart
pumps through the circulatory system in a minute.
• LACTATE LEVELS – a measure of the amount of
lactic acid in the blood.

12. MOTION
• LINEAR MOTION – refers to all objects or parts
travelling the same distance, in the same direction, at
the same time.
• VELOCITY – the speed of something in a given
direction.
• SPEED – is the distance covered divided by the time it
takes to cover that distance in an unspecified
direction.
• ACCELERATION – occurs when the motion is speeding
up.
• MOMENTUM – is the amount of motion possessed by
a moving object.

13. BALANCE AND STABILITY
• CENTRE OF GRAVITY – the balance point of the
system or the point at which all mass seems to
be concentrated.
• LINE OF GRAVITY – a straight line drawn from
the centre of gravity to the ground.
• BASE OF GRAVITY – the region bounded by the
body parts in contact with a surface that is
applying a reactive force against the applied
force of the body.

14. FLUID MECHANICS
• FLOATATION – consists of buoyant force that pushes the body
up and the weight force that pulls the body down (gravity).
• CENTRE OF BUOYANCY – the centre of gravity of the water
that the body displaces.
• FLUID RESISTANCE
• DRAG – the resistance that acts against a body as it moves
through a fluid movement.
• LIFT – occurs perpendicular to the flow of the water over
the body when swimming.
• THE MAGNUS EFFECT – occurs when a spinning object
creates a whirlpool of rotating air or liquid around it.