Download Heart Intro SJW

Cardiovascular Fitness
Concerned with the fitness of
the heart
the blood
the blood vessels
The circulatory system
The heart works as a double pump.
The right hand side of the heart carries
de-oxygenated blood.
The left side oxygenated blood.
The septum separates the two.
Where the blood goes
Blood is pumped away from the heart
from two routes.
• to the lungs
• to the working muscles
WHAT ARE THE FUNCTIONS OF THE
CIRCULATORY SYSTEM ?
•Circulates blood through the body
•Transports water, oxygen and food to cells
and removes wastes from the cells.
•Helps fight disease
•Helps maintain the correct body
temperature
The heart is a muscular pump. When it beats it
pumps blood to the lungs and around the body.
The amount of blood pumped can be calculated:
Heart Rate x Stroke Volume = Cardiac Output.
Heart rate: The number of heart beats per minute.
Stroke volume: The volume of blood pumped
from heart with each beat.
Cardiac output: The amount of blood pumped by
heart in one minute.
CARDIOVASCULAR FITNESS is the ability to
exercise the entire body for long periods of
time.
It requires a strong heart and clear blood
vessels to supply the muscles with plenty of
oxygen via the blood.
Cardiovascular fitness has some benefit to all
sportspeople as it concerns the fitness of the
most important muscle in the bodyTHE HEART