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SHC Physical Education 1.2 (2009) (PART 2 and 3) For the internal assessment of AS 90068 v2(5Cr ) Demonstrate knowledge of body structure and function related to the performance of a physical activity. Getting the Best out of My Body; Weight Training and Basketball STUDENT WORKBOOK STUDENT NAME: HOMEROOM: Achievement Criteria Achievement Describe how body structure and function are related to the performance of physical activity. Achievement with Excellence Achievement with Merit Explain how/why body structure and function are related to the performance of physical activity. Explain in detail how/why body structure and function are related to the performance of physical activity. 1 Contents Page PAGE TOPIC 2-3 Introduction 4 Learner Information 5 PART A_ Weight training and Understanding Fitness The Weight Room 6 My Skeleton 7 My Muscles 8-9 Muscle Performance 10-11 Improving My Performance 12-13 Muscular Action 14 Lab: Muscle movement 15 Practical Anatomy Review 16 PART B_ Basketball and Understanding Biomechanics Basic Skills of the Game 18 Biomechanics of Basketball Lab #1: Force Summation 20 Lab #2: Balance and Stability 23 Notes for Assessment 2 INTRODUCTION The purpose of this unit is.... ... to help you to understand HOW your BODY functions in relation to MOVEMENT. You will explore two of the key areas of Physical Education and, through participation in activities, understand how you can use your knowledge to help improve your performance. The 2 key areas will be: 1. ANATOMY: This is the way that the body is structured and how its systems work together. We can understand how bones, muscles and other parts of the body work together and train them correctly. 2. BIOMECHANICS: This is simply how mechanical ideas and the ‘laws of physics’ apply to our own movement. Through understanding this we can change our movement to make it much more efficient and effective, leading to more success. There are two parts to the unit. PART A WEIGHT TRAINING and UNDERSTANDING MUSCLE ACTIONS: This will take approximately 5 weeks and will specifically cover aspects 1 from above. You will be based in the weights room and you will need to develop and carry out an 8 session weight training programme for yourself. At the end of this section you will be assessed on your understanding of ANATOMY Expected Learning Outcomes For Part A 1 2 3 4 Demonstrate knowledge of the rules and ‘etiquette’ of using the weight room Identify the major bones and muscles of the body Describe how movement occurs during activities and explain the role of muscles, bones and joints Explain how the body’s muscles respond when we begin to do an exercise, and know why PART B BASKETBALL_ UNDERSTANDING TECHNIQUE: This will take approximately 5 weeks and will specifically cover aspect 2 from above. You will be based in the gym and you will explore the skills used in basketball, through skill improvement drills, labs and game play. 3 At the end of this section you will be assessed on your understanding of BIOMECHANICS as applied to the sport of basketball. Expected Learning Outcomes For Part B 1 2 3 4 5 6 Demonstrate correct basic technique for the three key skills in basketball (dribble, pass, shoot) I can explain how balance is important in the correct execution of a pass/shot and explain how I can improve my balance using the terms; base of support, centre of mass, line of gravity I can demonstrate correct body position and understand why it is correct on attack and defence I can pass accurately using my knowledge of ‘force summation’ to generate a well placed pass I can explain in detail how force summation is used in a jump shot I apply the correct projectile ‘angle of release’ to the ball so that it has maximal chance of going in General Learner Information: This booklet should be completed during PE sessions at school and at home for homework. The assessments that take place at the end of each part (A and B) of the unit will assume that you have a good understanding of all information that has been covered in class by your teacher and all information that is in this workbook. It is highly recommended that you also enhance your understanding of these topic areas by using the resources that have been provided for you on the SHC Physical Education ‘Wikispace’, which can be accessed from school or home by visiting; http://ncea-physical-education.wikispaces.com/ Follow the links to ‘Level 1’ and then to ‘Term 2’. There are a number of resources and on-line activities that you can complete in your own time to boost understanding to ‘excellence’ level. It is expected that you will do at least 2 nights of homework/research per week for this topic over the course of the unit. TO GET MERITS/EXCELLENCES IN THE ASSESSMENT YOU WILL NEED TO: Have a clear understanding of the concepts and ideas covered in class Support descriptions with detail i.e. reasons and examples For excellence, made judgements and justify with valid reasons and examples Explain (for merit) requires knowledge of the relationship between anatomical structure and the performance of a physical activity, the use of biomechanical principles to improve performance of a physical activity, and the relationship of physiological responses to the intensity of a physical activity For excellence there should be more in-depth explanation of the factors and how they interact to improve performance of a physical activity 4 PART A. WEIGHT TRAINING and UNDERSTANDING FITNESS The Weight Room Weight Room behaviour, etiquette and rules: It is important that all weight room users follow the rules. These are set up so that users are able to get maximum benefit from the use of the facility without having any of the problems. The three main problems that we attempt to avoid in the weight room are: 1. 2. 3. 4. Injury Poor maintenance of equipment Un-hygienic conditions Excessive crowding Based on these, there are certain ‘Rules’ that are in place whenever you are using the facility: (place the number corresponding to the reason (from above)for this rule next to it in the table) Gym Rules 1 Shoes must be worn when you are using the weight room 2 Bags, clothes etc are not to be left in the weight room 3 You do not get changed in the weight room 4 You are not to eat or drink in the weight room 5 6 You should have a towel with you so that any sweat left on equipment can be wiped off Always replace the weights to where they came from once they have been used 7 Do not throw balls around 8 Always maintain control of the equipment, use a spotter whenever possible Reason As well as these rules there is some general behaviour that is expected from all users. This behaviour is intended to allow all users to enjoy their training. This is called ‘etiquette’, it includes things such as: Not staying on one machine for too long Not making excessive noise when using machines or whilst socialising between activities Wearing appropriate clothing for training in Offering to help others out if they need assistance on particular pieces of equipment Not mucking around whilst you are in the weight room If everyone follows the rules and etiquette of the weight room then it is a much nicer place for everyone. For the remainder of this unit you will be required to follow the rules also. This may mean that you will have to pack some shoes as a part of your PE gear for a while. 5 Draw a line connecting the name to the bone Colour the name & bone the same colour 6 From The Posterior (Back): Can you name an exercise that you can do the weight room that works the following muscles: Deltoid Gluteus Maximus Triceps Brachii Hamstrings group; ( biceps femoris, semitendinosus and semimembranosus) Gastrocnemius From The Anterior (Front): Can you name an exercise that you can do the weight room that works the following muscles: Pectoralis Major Quadraceps Biceps Brachii Recuus Abdominus NOTE: These are the most important muscles for you to learn and know the movements for!! 7 Muscles move my skeleton by P__________ the bones. Muscles are attached to bones by T____________ Muscles are Heavy (1.1 x Weight of Water ) Fat is Light (0.9 x Weight of water) Body Muscle Mass _______ % (Males) Body Muscle Mass _______ % (Females) Resistance Training can increase the size and power of the muscles. Muscle mass increases S_____________ This is good in sports like Rugby or League. Muscle Strength. We can use the bench press as a measure of our general upper body strength. Start off with a weight that you can lift easily once. Increase the weight to find the maximum weight that you can lift one time. This is called a 1xRM (or 1 repetition maximal) = ___________________ Muscle STRENGTH is the total amount of FORCE that our muscles can generate when they contract. Each muscle group will have a specific amount of strength, dependent on the number of muscle fibres and their size. Muscle Power Vertical Jump. What % of my height can I leap. Leap dist = _______ (My Height = ________) Calculate Leap / Height x 100 My % = ____________ Muscle Power combines STRENGTH and EXPLOSIVE SPEED of movement. When we work in the weight room to improve our muscle power we will use different loads on our muscles, and change the way that we do our sets. 8 TRAINING YOUR MUSCLES FOR STRENGTH, POWER OR ENDURANCE As we have seen, it is important to know that training needs to be SPECIFIC to the requirements of what we are training for. You will get what you train for!!!!!! Depending on our sport, activity or personal goals we may wish to train our muscles in various ways; Using information from your teacher or from resources available in the weight room complete the following table to show how we can adjust our training to target either 1. Muscle Strength (maximal force generation... eg. For pushing in a scum) 2. Muscle Power (explosive force generation... eg. For kicking a ball) 3. Muscle Endurance (sustaining muscle contractions... eg. To keep going at the end of a game) Complete the following Table: (Use the following terms; HIGH, MEDIUM, LOW, FAST, SLOW and give an example) Amount of Weight Number of Reps Number of Sets Speed of Each Rep Strength Power Endurance Try to EXPLAIN the difference between these 3, giving reasons why they are different and detailing how the muscle changes depending on how it’s worked: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 9 IMPROVING MY PERFORMANCE Over the next 4 weeks you will attempt to develop the strength, power or endurance of chosen muscle groups in your own body. When you put your chosen activities together try to think about sequencing them so that you are working certain muscle groups and then resting them, so as to give them time to regain energy, before they are worked again. (You will learn more about energy supply to the working muscles later on) It is also important to try to balance out the muscles on both sides of the joint. For example, If I was attempting to build up the strength in my legs I would find an exercise to develop my quadriceps and one to develop my hamstrings. Rate yourself in the following table to try to determine what you might like to train. 5= Very good, high level 1= Fairly poor, low level Then Rank from 1-6, the areas that you would like to develop in your training. You might also like to think about the sport that you play and its requirements. What do you think are your strengths/weaknesses? Upper Body Strength Upper Body Power Upper Body Endurance Lower Body Strength Lower Body Power Lower Body Endurance Rank Upper Body Strength Upper Body Power Upper Body Endurance Lower Body Strength Lower Body Power Lower Body Endurance Now put together a programme of 8-10 exercises that you would like to work on over the next 4 weeks: MUSCLE TO WORK 1 Eg. Hamstrings 1 2 3 4 5 6 7 8 9 10 S/P/E EXERCISE Endurance Leg Curl Machine AMOUNT OF WEIGHT USED (kg/lbs) 25 kg NUMBER OF REPITITIONS (REPS) 20 NUMBER OF SETS 3 On the next page there is a training log which you can fill out each time that you do you weight training. It is a very good idea to keep a record of what you do and to keep track of how the training progresses. As you get fitter you may need to change the weights, reps or sets complete. 10 MY TRAINING DAIRY: EXERCISE 1 Eg. Leg Curl Machine 1 2 3 4 5 6 7 8 9 10 EXERCISE 1 Eg. Leg Curl Machine 1 2 3 4 5 6 7 8 9 10 SESSION 1 Weight-repssets 25 – 20 - 2 SESSION 2 Weight-repssets SESSION 3 Weight-repssets SESSION 4 Weight-repssets SESSION 5 Weight-repssets 30 – 20 - 3 SESSION 6 Weight-repssets SESSION 7 Weight-repssets SESSION 8 Weight-repssets AT THE END OF THE PROGRAMME: Explain how your body has changed (adapted) to the weights that you have been doing over the past 4 weeks. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 11 Skeletal Muscle & Muscle Attachment Muscles Fibres Muscles are made up of long thin cells called Muscle ____________ . Skeletal Muscles are the Meat. They give shape to your body. There are Three Types of Muscle Fibre _______________ Twitch ( FT I ) Contract quite quickly, considerable force This gives us strength. Tire quickly. White in colour. Little blood. _______________ Twitch ( FT II ) Contract very quickly, considerable force This gives us power & speed. Tire quickly. Grey in colour. Some blood. _______________ Twitch ( ST ) Contract slowly & without much force. Red in colour, use Oxygen from the blood. Which sports you are best at will mainly depend on the type of muscle fibre mix you have. Different Muscles have different mixtures of these fibres. Tendons Muscles are attached to the skeleton at both ends by very strong fibrous white tissue called T_________________ An example of this is _____________________________ Tendon fibres spread as they anchor into the _________________ This spreads the ________________ of contraction. Flexion - Bending movement that decreases the angle between two parts. Bending the elbow, or clenching a hand into a fist, are examples Key of flexion. When sitting down, the knees are flexed. Flexion of the hip or Movement shoulder moves the limb forward (towards the anterior side of the body). 12 Terms Extension - The opposite of flexion; a straightening movement that increases the angle between body parts. In a conventional handshake, the fingers are fully extended. When standing up, the knees are extended. Extension of the hip or shoulder moves the limb backward (towards the posterior side of the body). Muscle Movement Agonists & Antagonists Muscles almost always work in Pairs to perform a movement. Muscles work by Contracting and Pulling the bone. When a muscle pulls the bone it shortens. The muscle doing the work is called the A____________. The muscle that is relaxed and lengthening is called the A__________________ The Agonist is sometimes called the P_________ M__________. Often a number of muscles are being used to perform a movement or hold a point of balance. The Agonist muscle initiates the movement and moves the joint in the desired direction by pulling on the bone as it shortens. The Antagonist muscle helps to control the movement at the joint. The muscles work together to give the required force, in the required direction, at the required speed.... and we don’t even have to think about it. Triceps Brachii is the Agonist at the elbow joint during extension Biceps Brachii is the Antagonist Biceps Brachii is the Agonist at the elbow joint during flexion Triceps Brachii is the Antagonist Muscle Tone Even when a muscle is relaxed a small number of fibres are contracted to keep the muscle taut, but not enough to cause movement. 13 This state of partial contraction is called M___________ T_______ To maintain muscle tone without getting tired muscle fibres take turns contracting. Just like penguins in a blizzard. Poor Muscle Tone = Poor P____________ Regular exercise improves muscle tone. Muscle Movement Lab 1 Bar Bell Curl The action of Flexing the elbow to Curl the bar. What Muscle is the Agonist ? _________________________. Which muscle is the Antagonist ? _________________________ Lab 2 Rugby Punt Kick or Soccer Kick The immediate action of kicking the ball. What group of muscles are the Agonists ? ________________________________ The immediate action of kicking the ball. What group of muscles are the Antagonists ? ________________________________ Lab 3 Throwing a Grid-Iron Ball. The immediate action of throwing the ball. What group of muscles are the Agonists ? ________________________________ The immediate action of throwing the ball. What group of muscles are the Antagonists ? ________________________________ Explain in Detail how the muscles work together to control how hard we throw the ball in this activity. ___________________________________________________________________ ___________________________________________________________________ 14 ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 15 11 PE Practical Anatomy Review: Body Structure and Function. Instructions: Work in groups of 3. Move around each of the eight stations and complete the following table at each. You have about 4 minutes to complete each station Hand in your sheet at the end to receive your score. Describe the movement Name the JOINT involved in the movement (eg. Knee) State the TYPE of joint (eg. Hinge) What are the names of the BONES involved in the joint. (eg.femur, tibia) Name the MUSCLE which is the agonist in the action. (eg. Rectus femoris) Name the MUSCLE which is the antagonist in the action (eg. Biceps femoris) SCORE 1 2 3 4 5 6 7 8 /40 16 PART B. BASKETBALL and UNDERSTANDING BIOMECHANICS BASIC SKILLS OF THE GAME The first few lessons of this module involve exploration of the game of Basketball. We need to understand basic technique and know when to use certain skills in various game situations. Over your first few classes complete the tables on the following two pages. The Essential Skills of Basketball Skill Identified Variations of the skill. Dribbling Describe the key things I need to do to perform this skill. Can do how well (of 5 Stars) Left Hand Right Hand Switching Hands Shooting Lay-up Set-shot Free Throw Defence Player-press Zone 17 Strategies for successful participation are demonstrated. Strategy Dribbling Strategy Selected. Describe when and why I would use this strategy. I can do Basic dribbling up court Select hand Left – Right To retain possession Shooting Skillful dibble, ball behind back, through legs etc To retain possession Lay-up Set shot Defence Player-press. Zone LIST at least 5 of the rules of Basketball: 1 2 3 4 5 18 6 7 Biomechanics of Basketball Lab 1: FORCE SUMMATION FORCE is a push or pull that can cause an object with mass to accelerate. According to Newton's Second Law, an object will accelerate in proportion to the net force acting upon it and in inverse proportion to the object's mass. Explain what this means to you and how how it could relate to basketball: _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ ___________________________________________ A force is generated by the muscles of the body. We use the force of the muscles to do work. For example we use the force generated by the muscles in the arms to do the work of throwing a ball. The more force that is applied, the more we can accelerate a mass (object) and the further it will move. If we want to throw a ball a long way we need to generate a lot of force. FORCE SUMMATION is when we add forces together to get a maximum force. OUR body is able to add the combined forces of different muscles together, if the actions of the muscles are sequenced correctly. If we start with large muscle groups and move to smaller muscle groups we will get acceleration as well as added force, and so we will be able to generate a fast and powerful force. This is very useful for throws, kicks and jumps that we often use in sports like basketball. To get maximum force we add together more muscle groups and we sequence them so that as one muscle 19 group reaches its peak force we transfer to another... .... by doing this we get maximal distance and power in our performance. Biomechanics Experiment#1 With a Partner, try passing the basketball from the following positions; 1. 2. 3. 4. 5. 6. 7. Sitting with back flat against wall and legs flat on the ground Sitting out from the wall with legs flat on ground Kneeling on the ground Standing, legs together and straight, facing forward Feet apart, one foot forward, legs not bent at knees Feet apart, one foot forward, legs bent at knees Step into the throw For each of the 7 variations estimate the distance that you were able to throw the ball: Variation of attempted throw: 1 2 3 4 5 6 7 Approx distance(m) Explain in Detail, using your knowledge of force summation’ the variation in the results. __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ ____________________________________________ Biomechanics Experiment#2 Attempt 10 Set-shots for each of the following body positions. Record your results on the table. Shot Angle Legs straight facing Feet together Knees bent facing Feet together Knees bent 450 Feet shoulder width Low jump 450 Feet apart 1 2 3 4 5 6 7 8 9 10 Results Findings Which shot gave you the best result ? Explain why bending your knees gave you more power to shoot the ball. Why is this called “Force Summation ?” 20 % Lab 2: BALANCE AND STABILITY Static Balance - holding a static position of balance Sporting Examples - gymnastics floor & beam routines, dance, aerobics Dynamic Balance – maintaining balance while moving Sporting Examples - skiing, basketball, kicking a ball Principles of Balance Size of the Base of Support Position of the Centre of Mass Line of Gravity To maintain static balance the Centre of Mass must be over the Support Base. Balance Experiments 1. BLOCKS Which block is more stable ? ____________________________________ Which two factors make this block more stable than the other blocks ? 1. ___________________________________________ 2. ___________________________________________ 2. BASE OF SUPPORT TRY THE FOLLOWING: Stand on two feet, try one foot, close eyes while on one foot Why is one foot more difficult? = smaller base What happens to shoulders when on one foot = shift line of gravity over one foot. Eyes – why do we fall over = eyes give our line of vertical for Line of G. 3. Tennis Ball Lift – Free standing & then with Back against the wall. 21 Why is it so hard to pick up the ball when you are up against the wall? ________________ __________________________________________________________________________ Centre of Mass this is the central point around which all of the mass of the object is evenly distributed. We can usually approximate where this point is by drawing a box around the object and then drawing diagonal lines in both directions through it. The intersection of these points is ‘roughly’ the position of the centre of mass of that object. Find the centre of mass for the following body positions: Base of Support this is the surface that is in contact with the ground and that is supporting the object. A WIDE BASE will provide much more stability than a narrow base. On the diagrams above indicate the ‘Base of ‘Support’ of the performer of each action. Line of Gravity is an imaginary line that drops vertically from the Centre of Mass. It is an important indicator of Balance because as soon as the Line of Gravity moves outside of the base of support then the object will lose its balance, and topple over. This is why a wide base is much more stable... because it takes a lot more effort to move the centre of mass outside of the base. It is also why we are better balanced if our centre of mass is lower, or closer to our base of support. It takes a greater lean, or ‘tipping angle,’ to move it outside of its base of support. Imagine the following two vehicles going around a corner. Which one is more likely to tip as they turn? ___________ Explain why using the information above: ______________________________ ______________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ 22 ATTACK and DEFENCE: When we play Basketball we are always trying to manoeuvre our way around opposition players when on attack. When on defence we are trying to disrupt the player with the ball so that we can steal the ball or halt their progress. Our ability to change direction quickly is dependent upon fine control of our bdy balance and stability. Play some quick warm-up games of 2v2 or 3v3 basketball on a half-court. As you play, think about the different ways that you change your body position when on attack so that you can either keep control of the ball or beat an opposition player. 1. Describe the body position and a possible advantage for each of the following attackers: Describe the Position Advantages Why is it an advantage to dribble with knees bent & hips lowered ? ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ___________________________________________________________ ____ 2. Now describe the body position and a possible advantage for the following defender: 23 NOTES FOR ASSESSMENTS: Describe (Achieved) for achievement may include the identification of features, e.g. labelling of bones and joints in relation to the movement. Explain (Merit) for merit level will require knowledge of factors such as: the relationship between anatomical structure and the performance of a physical activity, the use of biomechanical principles to improve performance of a physical activity and the relationship of physiological responses to the intensity of a physical activity. Explain in detail (excellence) should include: a more in-depth explanation of the factors and how the factors interact to improve performance of a physical activity. 1 TERM DEFINITION Describe Provide characteristics and features Give an account of Defines, give an outline, say or write what the subject is like or about Provide statements of what happens, together with how or why Relate cause and effect: make the relationship between things clear Make plain, clear, Goes further and shows the links between different aspects Shows the ‘big picture’ and how things fit together inside of it Attention is given to detailed descriptions of how or why things have occurred as they did (and not in some other way). 2 Explain 3 Explain in Detail Tick to show that you know how to do the following: Expected Learning Outcomes For Part A 1 2 3 4 Demonstrate knowledge of the rules and ‘etiquette’ of using the weight room Identify the major bones and muscles of the body Describe how movement occurs during activities and explain the role of muscles, bones and joints Explain how the body responds when we begin to do an exercise, and know why Expected Learning Outcomes For Part B 1 2 3 4 5 6 Demonstrate correct basic technique for the three key skills in basketball (dribble, pass, shoot) I can explain how balance is important in the correct execution of a pass/shot and explain how I can improve my balance using the terms; base of support, centre of mass, line of gravity I can demonstrate correct body position and understand why it is correct on attack and defence I can pass accurately using my knowledge of ‘force summation’ to generate a well placed pass I can explain in detail how force summation is used in a jump shot I apply the correct projectile ‘angle of release’ to the ball so that it has maximal chance of going in 24