Soc 9 Flashcards
Aerobic exercise
Working at a moderate intensity level with oxygen
Effects of aerobic exercise
Will increase the ability to work for long periods of time
What will aerobic exercises improve
.Improve times for long distance athletes
. Ability to run 90 mins in a football game
Anaerobic exercise
Working at a high intensity level without oxygen
Effects of anaerobic exercise
Will increase the ability to move in quick bursts
What will anaerobic exercise improve
. Sprinting for the ball in football
. Making a powerful tackle in a rugby game
. Improves time over the shorter/sprint distances in athletics or swimming
Effects of the musculo-skeletal system
• Increased strength of ligaments and tendons.
• Increased bone density – helps prevent osteoporosis (weakening of bones).
• Muscle hypertrophy: is a term for the growth and increase of the size of muscle cells.
• Adaptation: the body adapts to training loads imposed on it by increasing the ability to cope with those loads.
Effects on the cardio-respiratory system - your heart
.Decreases resting heart rate
.Faster recovery rate
.Increases resting stroke volume
.Maximum cardiac output
.Siza and Strength of heart
Effects on the cardio-respiratory system - your blood
Capillaries: Improved fitness increases the number of capillaries in your heart muscle and helps your blood vessels more elastic, flexible and efficient.
Increased number of red blood cells: These cells carry oxygen to the muscles, so having higher red blood cell count can improve their performance.
Drop in resting blood pressure: regular exercise reduces blood pressure due to the muscular wall of the veins and arteries becoming more elastic.
Effects on the respiratory system
Increased lung capacity/ volume and vital capacity Increased number of alveoli
Increase strength of the diaphram
Adaptation
Your body’s response to training and how your body changes to cope with new activity.
Alveoli
Tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream.
Diaphragm
The primary muscle used in the process of inspiration or inhalation.
Cardiac output
The amount of blood ejected from your heart in one minute (CO) = (SV) x (HR)
Resting stroke volume:
The amount of blood pumped per beat.