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THE PHYSIOLOGY OF FITNESS
Transcript of THE PHYSIOLOGY OF FITNESS
Unit 2 - BTEC Sport Level 3 GRADING CRITERIA Task Outline
In order to promote the effects of exercise you have been asked to produce a poster which outlines the key effects of exercise on the muscular, skeletal, cardiovascular, respiratory and energy systems. Your poster will be displayed in sports centres, schools and other sporting facilities. This unit provides an opportunity for learners
to explore the body’s response to acute exercise
and how the body adapts to long-term
exercise participation. UNIT OUTLINE KNOW THE BODY'S RESPONSE TO EXERCISE. WHEN WE EXERCISE OR TAKE PART IN PHYSICAL ACTIVITY OUR BODIES RESPOND IN DIFFERENT WAYS....
SOME OF THESE EFFECTS ARE IMMEDIATE = Acute Responses.
SOME ARE LONG TERM EFFECTS = Chronic Responses to exercise. WHAT WILL WE BE DOING TODAY? LO1: Today you will learn and explore the acute responses to exercise enabling you to complete P1 of your assignment.
LO2: Pupils will explain how the body responds to exercise relating to a sporting example, enabling them to access and demonstrate the MERIT level requirement.
LO3: Today you will also learn key words and definitions you will be required to understand and use in your work. TEST TIME - THE BURPEE CHALLENGE 1. PAIR UP - ONE PERSON TO COUNT THE REPS, ONE PERSON TO TAKE PART.
The Activity On Teachers Command - you have one minute to complete as many burpee's as you can - you must work continously for the entire minute. Burpees are an exercise that requires not only
strength but also aerobic endurance,
and all you need is your body.
One rep should take around 4 seconds to complete! BURPEE CHALLENGE SO WHAT HAPPENED? DURING THE BURPEE CHALLENGE WHAT HAPPENED TO YOUR BODY?
WITH YOUR PARTNER 1. DISCUSS AND 2. WRITE A LIST IN THE SPACE PROVIDED ON YOUR WORK SHEET. - can you relate your answers to the different body systems we have looked at in unit 1? PHHHEEWWWW..........ARE YOU STILL ALIVE....? YOU HAVE 2 MINUTES! 1.1 - The Musculoskeletal Response to Exercise The Musculoskeletal system consists of muscles, tendons, ligaments, bones and cartilage - these support our body and enable it to move! This is controlled by our nervous system to produce the voluntary movements! Our skeleton provides our framework and our muscles form the fleshy part.
Muscles facilitate movement, maintain our posture and produce heat! INCREASED BLOOD SUPPLY A short term effect of exercise on our muscles is an increase in temperature and metabolic activity.
Increase in metabolic activity = greater demand for oxygen met by increase of blood supply through the capillary dilation. Increase in Muscle Pliability INCREASED RANGE OF MOVEMENT short term effects of exercise on our skeletal system are demonstrated by changes within joint movements.
when we completed the burpee challenge - the movements of our joints stimulates the secretion of synovial fluid. the fluid becomes less viscous.
Because of this the range of movement at the joint increases.
VISCOUS = The measure of resistance (thickness) of a fluid. The Warming of our muscles during activity makes them ore pliable which reduces the risk of injury.
Pliability: Relates to the stretchiness of our muscles and connective tissues. All movement requires energy. Short bursts of effort (burpee’s) require the body to produce large amounts of energy over a short period.
Activities such as a marathon or endurance cycling require continued energy production over a longer period and at a slower rate.
The different energy systems of the body facilitate these processes. 1.2 THE ENERGY SYSTEMS THE ENERGY SYSTEMS 1. CREATINE PHOSPHATE ENERGY SYSTEM (up to 10seconds)
2. LACTIC ACID ENERGY SYSTEM (400m Race - 60-90seconds)
3. ANAEROBIC GLYCOLYSIS (occurs after Pcr system fades out)
4. AEROBIC ENERGY SYSTEM (lighter exercise over long periods) YOUR TASK Using the information in your worksheet booklet & the book pages found on the BTEC Unit 2 - Shared Area.
open the file - Reading & Info PDF.
In Your Pair
- explain the acute musculoskeletal & energy system responses to exercise relating to a sporting example picture/video allocated to you. (next slide)
SPORTING EXAMPLES USAIN BOLT - 100M SPRINT FINAL
JESSICA ENNIS - Javelin
MO FARAH - 5000m
CHRIS HOY - CYCLING
GREG RUTHERFORD - LONG JUMP - provide a commentary of what happens to the body in detail. (if you were to watch a clip of the athlete in the event the bodily responses would match.
One group randomly selected will read commentary over a video clip at end of lesson.
(a starting point example is provided in the worksheet booklet.)