Circulatory responses to Physical Activity
What is the formula for Cardiac Output?
HR x SV
The energy used by muscles to contract and produce movement comes from a chemical compound called
Adenosine Triphosphate
The most common form of motion within sporting activities” relates to which type of motion
General Motion
What are the 3 phases of movement in a sporting action?
Preparation phase
Action phase
Follow through phase
100m sprint is an example of what energy system?
ATP-CP
The following definition; defines which circulatory response to PA?
The amount of blood circulated through your heart in one minute. Increases during physical activity as muscles require more fuel and oxygen during physical activity at a quicker rate.
Cardiac Output
Lactic acid system requires which fuel?
Glycogen
The arm of a fast bowler in cricket is an example of what kind of motion?
Angular Motion
Which phase of movement takes the shortest amount of time to complete?
Action Phase
Marathon is a sporting example of what energy system?
Aerobic energy system
During physical activity the venous concentration can drop indicating that more oxygen is being extracted from the blood into the active muscles.
Which circulatory response to PA is this?
Arteriovenous oxygen difference
ATP-CP system lasts for how long?
Up to 10 seconds
Define Angular Motion?
The motion of a body about a fixed point or fixed axis. EG. The arm in a softball pitch
Vertical or longitudinal axis has rotation occurring in which plane?
Sagittal
Transverse
Frontal
Transverse
Longitudinal
Define how temperature regulation is managed by the body as a circulatory response to PA?
During physical activity the production of waste products (CO2, heat) increases therefore to prevent overheating of muscle tissue the blood acts as a temperature regulator by transferring heat from within the body to the skin surface . therefore perspiration increases rapidly during exercise to effectively regulate the temperature of working muscles.
Aerobic system requires what source of fuel?
CHO, fats and protein
Define Linear motion and give an example?
Linear motion takes place when a body moves and all parts of the body travel exactly the same distance, in exactly the same direction, at the same time.
Eg. A 100m sprinter
Transverse axis allows rotation in which plane?
Sagittal
A diver completing a summersault has rotation occurring through which plane?
Sagittal
(A line through the middle of the body, dividing into left and right hemispheres)
What are the 7 Circulatory responses to Physical Activity?
Name each energy system and list a sporting example for each:
ATP-CP = 100m sprint
Lactic Acid = 200m sprint
Aerobic = Marathon
Define General Motion and give an example?
A combination of both linear and angular motion. Eg. A cyclist body undergoes linear motion due to the angular motion of the legs.
Medial axis allows rotation through which plane?
Frontal
Completing a cartwheel is an example of rotation through which plane?
Frontal