Download Cardiovascular Endurance

Cardiovascular
Endurance
SWBAT: DEMONSTRATE KNOWLEDGE OF THE CARDIOVASCULAR SYSTEM,
CARDIOVASCULAR FITNESS, AND HEALTH FACTORS BY COMPLETING A
DIAGRAM OF THE HEART AFTER COMPLETING A CARDIOVASCULAR HEALTH
AND FITNESS POWERPOINT
Bellwork: Label the heart to the best of
your ability.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
Review

Cardiovascular Fitness

The ability of the heart, blood vessels and respiratory system to supply oxygen
and nutrients to the muscles during exercise.
The heart

The heart is a muscle that pumps blood through the body

Oxygen is the body’s fuel. Muscles cannot work without oxygen. Oxygen
is carried through the blood.

Blood vessels are tubes that carry blood throughout the body

Arteries are blood vessels that carries oxygenated blood away from the heart
to the body

Veins are blood vessels that carry deoxygenated blood back to the heart from
the body

Capillaries are where oxygenated and deoxygenated blood is exchanged
Heart Arteries Arterioles 
Capillaries 
Venules  Veins  Heart
Video time

https://www.youtube.com/watch?v=oHMmtqKgs50
Bellwork: Finish labeling your heart
diagram then study it.
1)Aorta
2)Right Atrium
3) Right Ventricle
4)Right AV
5)Pulmonic Valve
6)Pulmonary Artery
7)Pulmonary Vein
8)Left Atrium
9)Left Ventricle
10)Superior Vena Cava
11)Inferior Vena Cava
12)Left AV
Finding your HR

Pulse: caused by the pressure of the blood on the artery wall

Measured in beats per minute BPM

Carotid artery: on your neck

Radial artery: on your wrist

Ways you can take your pulse:

Count beats for 6 seconds, then multiply by 10

Count beats for 15 seconds, then multiply by 4

Count beats for 30 seconds, then multiply by 2
Heart Rate


Resting Heart Rate: taken while sitting or lying down

Most accurate time to take it is when you first wake up, before
sitting up in bed

The more active you are, the lower your resting heart rate is
Maximum Heart Rate: the fastest your heart should
beat during exercise

Formula: Max HR = 220-your age

Example: 220-20=200bpm
Heart Rate



Target Heart Rate Zone: the range that your heart rate
should be within when you are exercising
Formula: Low end of Target HR = Max HR x .50
High end of Target HR = Max HR x .85


Example: 200 x .50 = 100 bpm
200 x .85 = 170 bpm
The Target HR Zone for a 20-year-old is 100-170bpm
Blood Pressure

Blood Pressure: the force of blood against artery walls

Measured by two numbers…

Systolic: the pressure at the moment blood is being pumped out of the heart by
the ventricles


Diastolic: the pressure at the moment the heart is relaxed and being filled with
blood


Top number
Bottom number
Normal blood pressure is 120/80
High Blood PRessure

High BP is called hypertension

Can be caused by thyroid, kidney, or adrenal gland problems

Certain prescription medications, alcohol, and illegal drugs

Too much salt in the diet

If neglected, hypertension may lead to heart attacks and
strokes
Low Blood Pressure

Low blood pressure is called hypotension

It is common for athletes and highly active people to have low
BP because their heart rates can be low

Low BP can also be signs of other medical conditions and
cause dizziness and/or fainting because the brain is not
receiving enough oxygen

Pregnancy, lack of nutrients, anemia, dehydration, and certain
medications can also cause low BP
Heart Diseases Videos

https://www.youtube.com/watch?v=T8zkvdkzU7A
Cardiovascular Diseases

Cardiovascular Disease: heart disease

Atherosclerosis: build up of plaque on the inner wall of arteries

Arrhythmia: abnormal beating of the heart

Tachyardia: heartbeat is too fast >100bmp

Bradycardia: heartbeat is too slow <60bmp

Stroke: blood vessels that lead to the brain are blocked, usually due to a blood
clot

Heart attack: blood flow to the heart is blocked, usually due to a blood clot