Flashcards in P.E Ka3 Deck (45):
What are the four recovery methods?
What are the benefits of a cool down?
Helps decrease body temperature and remove waste products such as lactic acid from the working muscle. Muscles are replenished with oxygen and relieves pain
What are the benefits of sports drinks?
Replaces electrolyte loss from sweating. Contain carbohydrates to provide energy. Boost glucose levels
What is carbohydrate loading?
Involves increasing the amount of carbohydrates before an event to maximise the amount of glucose in the body so it can better a performance
What is the benefit of protein intake?
Important for power athletes such as weight lifters. It increases strength and speed and helps with growth and repair
What are the benefits or massages?
Reduces pain, relieves DOMS by encouraging blood flow, prevents muscle fatigue, reduces swelling and stiffness
What are the benefits of ice baths?
Prevents DOMS, flush lactic acid from the working muscles, increased blood flow to the muscles, reduce swelling
What are the immediate effects of exercise?
Increased heart rate
Increased body temperature
Breathing rate increased
What are the short term effects of exercise?
What are the long term effects of exercise?
Increased muscle size (hyperthrophy)
Increased heart size
Decreased resting heart rate
What are the three lever types?
First class, second class and third class
What's the fulcrum?
The point at which the lever turns or is supported (pivots)
What is the effort?
The force required to move the load
What is the load?
The weight/ resistance to be moved
How can u remember levers?
F L E
1 2 3
elbow Ankle Knee
Both High Low
What is a lever?
A rigid bar (bone) that turns about an axis to create movement
Where does the force to move a lever come from?
What is an example of a first class lever?
Dumbbell triceps extension
What is an example of a second class lever?
Standing of tiptoes/ dance
What is an example of a third class lever
What is high mechanical advantage?
The effort arm is longer than the load arm
What is Low mechanical advantage?
The load arm is longer than the effort arm
What is the load arm?
The distance between the load to the fulcrum
What is the effort arm?
The distance from the effort to the fulcrum
What is the equation for mechanical advantage?
Mech.Advan =effort arm/load arm
What are the benefits of levers with high mechanical advantage?
They can move heavy loads with relatively low effort
What are the benefits of levers with low mechanical advantage?
They are able to increase the distance covered and therefore the speed at the end of the lever arm. They can produce a larger range of movement with relatively low effort
How can first class levers have both high and low mechanical advantage?
High is the fulcrum is closer to the load.
Low when fulcrum is closer to the effort
What is the equation for movement?
Movement= force x distance
What is a plane?
An imaginary line of surface that divides the body into two. Movement occurs in a plane.
What is an axis?
An imaginary line around or about which the whole body or part of the body can turn
What is the plane and axis when the plane runs from left to right and the axis runs horizontally through the body from front to back through the belly button?
Frontal plane / Sagittal axis
What is the plane and axis when the plane divides the body in half horizontally into upper and lower halves and the axis runs vertically through the body from head to toe?
Transverse plane / longitudinal axis
What is the plane and axis when the plane runs forwards and backwards and divides the body into left and right halves and the axis runs horizontally through the body from left to right at the hips
Sagittal plane / transverse axis
What is a physical example of frontal planes and Sagittal axis?
Jumping jacks and cartwheels.
They allow abduction and adduction
What is a sporting example of a transverse plane and longitudinal axis?
360 spin (ice skating/ trampolining). Allows rotation
What is a physical example of Sagittal plane and transverse axis?
Somersault/ squat/ leg raise. Allows flexion and extension
Explain the second class lever when a person is sprinting
There is a second class lever created as the foot contacts the floor when sprinting, with the fulcrum found at the all ball of the foot as a person leaves the ground. The effort is the gastrocnemius muscle with the load being the persons body weight. The second class lever is key in driving the weight off the ground
Explain the third class lever when a person is sprinting
The third class levers occur at the joints in the body. At the shoulders and elbows, the lever allows large arm movement which adds momentum. Also at the hips and the knees, the lever allows large range of movement and greater speed.
How can u remember the planes and axis?
Cats Fall Safely
Tigers Trick Lions
Some Snakes Talk
Which movement best describes the arm action of a swimmer using the butterfly action?
Which lever describes a footballer kicking a ball?
Third class lever
What is obesity?
When someone has a high fat content caused by the imbalance in the number of calories consumed.
What is the definition of a sedentary lifestyle?
A lifestyle that involves irregular physical activity or physical activity at all. It can lead to serious consequences.