Final Exam Chapter 15 Exercise Flashcards
What are the 4 types of physical activity?
Isometric
Isotonic
Aerobic
Anaerobic
What is isometric exercise?
place tension on particular muscles without moving surrounding joints
What is isotonic exercise?
requires the flexing of muscles and the moving of joints
What is aerobic exercise?
is any exercise that requires a significant increase in oxygen usage over an extended period of time
Examples of aerobic exercise?
brisk walking
swimming
running
cycling
What is anaerobic exercise?
requires short, intensive bursts of physical activity that require no additional oxygen
Examples of anaerobic exercise?
sprint
weightlifting
isometrics
plyometrics
interval training
What are reasons for exercise? (3)
physical fitness
weight control
physiological benefits
What is the primary reason for physical fitness?
increase physical fitness by increasing muscle strength and endurance and flexibility
What does strength exercise require?
shorter repetitions
What does endurance require?
Endurance is built with less exertion, but more frequent repetition
What does flexibility involve?
It is the range of motion that joints are able to move within.
More flexibility helps people avoid injury while performing other types of physical activity.
Why is aerobic fitness an important type of fitness?
The most important type of fitness.
It keeps the heart and cardiovascular system healthy, improving quality of life and increasing lifespan
What does weight control require more of compared to aerobic exercise?
more exertion
What is included in the equation for weight loss?
Exercise is only one part of the equation when it comes to weight loss. Changes in eating habits must also be included so that fat levels in the body drop while lean muscle tissues remain
What is adipose tissue?
body fat
What does running do for weight loss?
Running drains adipose cells
What happens with fat cells in the body in regards to weight loss/gain?
Once fat cells are made, they stay — it is easier to gain weight than lose, it will be easier to go back up to a higher weight than it was before.
What are the physiological changes that result from exercise?
Improves mood and stimulates your brain
Increases respiratory capacity
Reduces your risk of heart disease
Improves digestion and fat metabolism
Strengthens bones and increases joint flexibility
Increases muscle strength and tone
Improves your circulation
How does exercise increases respiratory capacity?
Endure hardship without being out of breath → your heart is not pumping as fast when you are climbing the stairs
How does exercise improve circulation?
When your sick, the white blood cells circulate better
What is CVD?
general term that describes a disease of the heart and blood vessels.
What is thrombosis?
Blood flow to the heart, brain, or body can be reduced because of a blood clot
What does CVD include?
includes coronary heart disease (CHD), heart failure, and other conditions affecting the heart and blood vessels.
What in the body has the best blood flow?
Aorta to the veins all have better flow
What are the most common CVD’s?
Heart attack
Cardiac Attack
Stroke
What is a heart attack?
involves the heart → occurs when blood flow to the heart is blocked
What is cardiac arrest?
involves the heart → occurs when the heart malfunctions and suddenly stops beating unexpectedly
What is a stroke?
involves the brain → occurs when blood supply to the brain is interrupted or reduced, depressing deep tissue of oxygen and nutrients (can be from a weakened blood vessels or a blood clot)
What are the two types of strokes?
Ischemetric – blood clot
Hemorrhagic – weakened blood vessel ruptures
What have early studies found regarding Physical Activity and Cardiovascular Health?
1950s – sedentary workers were more prone to heart disease than active workers
Men who were more active were less likely to suffer a heart attack
What did later studies find regarding Physical Activity and Cardiovascular Health?
demonstrated a relationship between physical activity and decreased CVD
Those who survived a heart attack and who included physical activity as part of their recovery are far less likely to suffer another
Those who take part in physical activity are more protected from premature CVD, including stroke
What are the benefits of Physical Activity and Cardiovascular Health?
Both women and men can improve their cardiovascular health and live longer with light to moderate exercise
Physically active people can expect an average increase in longevity of about 2 years
Physical activity does more than add quality to life span – it adds quality to those years
Improves well being, mental health, and cognitive functioning
What do cholesterol numbers show?
Your cholesterol numbers show how much cholesterol is circulating in your blood
What is cholesterol?
Cholesterol is a waxy, fat-like substance that is found in the cells of your body
What is the function of cholesterol?
Need it to build cells and make vitamins and other hormones (Cell structure – crucial component of cell membranes)
Hormone production
*Too much can be a problem