SAMPLE 2 – ASSESSMENT CRITERIA AND LEARNING OUTCOMES ASSESSMENT OF HUMAN PERFORMANCE IN SPORT : MA1/3/AA/05G 2. Understand the fitness requirements and skill related components of sporting activities 2.1 Evaluate the physical fitness requirements and skill related requirements of sporting performance for 2 contrasting sports SAMPLE 2– GRADING DESCRIPTORS AND COMPONENTS GD1 – Understanding of the subject Merit a. Demonstrate a very good grasp of the relevant knowledge base Distinction a. Demonstrates an excellent grasp of the relevant knowledge base GD7 – Quality Merit Distinction The work: The work: c. Taken as a whole, demonstrates a c. Taken as a whole, demonstrates very good response to the an excellent response to the demands of the brief/assignment demands of the brief/assignment SAMPLE 2 – STUDENT WORK Task 1 Coulson and Archer (2011) state that; ‘Physical fitness, as with fitness for health, is not considered to be a single construct as it can be divided into several discrete components that can be trained or adapted individually.’ Sporting performance is highly influenced by physical and health related fitness components. Physical fitness is composed of five key components which allow the athlete to compete with the demands of the sport without fatigue; Body Composition Muscular Endurance Flexibility Cardiovascular fitness Muscular Strength Skill related fitness is made up of six key components which are utilised in the more technical aspects of sporting performance; Speed Reaction Time Agility Balance Coordination Power 1 SAMPLE 2 – STUDENT WORK All sporting people will incorporate both physical and health related components of fitness during their performance in some form or another. The variation of this depends on the specific sportsman and the contrasting training they undergo. I have chosen to analyse the components of fitness and sporting methods of a Sprinter and Long distance swimmer. Body Composition The successfulness of an athlete is determined by many factors; training regime, diet, natural ability, body composition and some suggest luck. A higher level of sporting performance can be heavily influenced by an ‘optimum body composition.’ For example, the build-up of an athlete’s physical characteristics can be the difference between being lean enough to maintain muscular strength, but light enough to excel with speed, a situation as such is vital in the performance of a sprinter. Garret et al (2000) says ‘Body fat negatively influences athletic ability performances involving agility, speed, endurance, running and jumping.’ Body composition is measured by the amount of cartilage, muscle, bone and fat that makes up the human body. A healthy amount of fat for a man is between 15-18% and for women is 20-25%. A sprinter generally has a developed muscular upper body and leg strength due to the power exerted whilst sprinting giving them a mesomorph body- type builds. An increase of body fat increases risk of injury to the joints and bones and decreases performance. In contrast, long distance swimmers are found to have an Ectomorph build with a leaner, thinner build and longer limbs. The distribution of fat around the body affects the swimmers buoyancy and ability to float. Lawrence (2004) states ‘ Muscular and leaner body types are less 2 Figure 1 (online) SAMPLE 2 – STUDENT WORK buoyant, more stable and can move more quickly through water.’ Body composition in athletes can be tested by a ‘Bod Pod’ as illustrated in figure one (right.) The Bod Pod is a body composition tracking system which measures air displacement by body density. It measures the body mass of an athlete using a precise scale to calculate the density of fat to lean muscle tissue. It uses the relationship between pressure and volume to detect pressure responses to the change in volume. The athlete wears the minimal amount of clothing as possible and a tight cap on the head to reduce excess volume whilst sitting as still as possible with light breathing. For example, if the interior air volume of the empty pod is 500litres, the volume of the chamber is reduced to 450litres with the athlete inside; the outcome is the volume of the subject is 50 litres. Other ways of testing body composition include; Skin fold measurement, Waist to Hip, Hydro densitometry and dual energy x-ray absorptiometry. Muscular Endurance Lerwill ( 2009) states’ Endurance fitness is the muscles ability to resist fatigue whilst performing prolonged exercise.’ The two most significant components of fitness for a long distance swimmer include muscular endurance and cardiovascular endurance. Distance swimming is a full body muscular workout using every measure of the physique to work for as long as possible against the resistance (water.) A long distance swimmer will maintain a steady pace throughout her/his race as the goal is to cover as much distance as the body can without fatigue, not for the key outcome of speed (although this will still be considered a factor.) As the athlete trains further, the muscles adapt to the distance and begin to grow stronger, gaining the ability to work for longer against the resistance. Although not the most important component of fitness needed in short distance running, a sprinter will still have a good level of muscular endurance due to the frequency which s/he trains and the repeated movement of the muscles working against resistances. Some sprinters may try 3 SAMPLE 2 – STUDENT WORK to train muscular endurance once a week as a way of light intensity exercise or ‘cool down.’ An effective way to measure muscular endurance is by partaking in a sit up test. The outcome is to complete as many full sit ups as possible in sixty seconds. A partner is needed to time the test and count how many accurately performed sit ups are finished. The athlete must make sure to follow all regulations set out to make sure it is an accurate a test as possible. The starting position must be taken with the back laid flat on the floor and the knees at a ninety degree angle. As the move is performed, the shoulder blades must be lifted off the floor using core strength taking extra care not to cheat by using any help from momentum with arms etc. Making sure the test is conducted as accurately as possible is vital in how correct the results are. The limitations of the sit up test are that only the core strength of the athlete is being measured as no other muscles are being taken into consideration. There is room for error as the validity of the athletes performance is based solely on the opinion of the partner assessing, what one person may consider a ‘proper sit up’ another might disagree. This also applies to the degree in which the participant positions his/her legs and the height reached when completing the sit up movement. Flexibility ‘Achieving and maintaining appropriate flexibility are critical for optimal athletic performance, daily living activities, and prevention of injury.’ (Manore et al, 2009) Although not considered the most significant component of physical fitness in both long distance swimming and sprinting, aspects of flexibility are vital in both sports and should be included at least once a week into each training programme to help skill, technique and reduce the risk of injury. Flexibility is the range of movement available at the joints in our body. Having a vast range of movements available is substantially important in the variation of movements a long distance swimmer will use during the sport. For example, each race is entitled with different specifications; Backstroke, Butterfly, Front 4 SAMPLE 2 – STUDENT WORK Crawl. All of these varieties use different arm and leg movements, different joints and alternating muscles. Without the help of flexibility the body would be unable to complete the full range of movements and would be more prone to injury and risk of poor performance. With numerous hours spent swimming and training the strain of repeated exercise can begin to create pain and issues in the lower back of the swimmer, an increased level of flexibility can help to reduce this pain and improve performance. Reaburn (2014) describes how ‘Good flexibility is thought to be an important prerequisite to perform technically correct sprint running stride.’ Flexibility can be affected by an assortment of factors such as; age, excessive fatty tissue, levels of fitness and tensions in the joints, muscles, tendons and ligaments. Research has shown how muscle tissue is more prone to injury with age due to structural changes in the tissue surrounding the joints. In addition to this, any person deemed with excess body fat is more prone to poor flexibility as lack of exercise leads to the shortening and tightening of muscle fibres. Although there is no means of testing the full body’s flexibility, we are able to test the range of movement from a joint by completing a sit and reach test. (Figure 2, below) The most common test for flexibility is the sit and reach test, as pictured in figure 2 above. This test will measure the range of movement available from the 5 SAMPLE 2 – STUDENT WORK hip, lower back and hamstrings. The only equipment which is needed is the sit and reach box, and some object to push forward i.e. a ruler. The athlete will sit with both legs extended flat on the floor with bare feet pushed up flat against the box. If needed, the assessor may gently hold the knees flat against the floor to help reduce the chance of an inaccurate finding. Beginning with a straight back posture, the participant will reach forward with palms resting on the top of the box and stretch as far forward as possible then hold for a second to allow the assessor to take the reading. The athlete will then repeat this process three times to find the average. This result in centimetres will give a representation of the level of flexibility. In some cases the participant may not be able to reach the box, therefore the distance will be measured from the tips of the fingers, to the beginning of the sit and reach box to find the results. Issues with the validity of this test include; only the flexibility of some parts of the body can be measured, a person’s varying time of warm up will have an impact on the results (a person who has done little or no warm up will obviously have a much lower result than a person who has done some form of cardiovascular warm up and stretching). It does not take into account the variations of participants limbs as it uses a set distance, for example, a person with long arms and shorter legs will have a better result than a person with long legs are shorter arms as they are at a disadvantage. However, this test is relatively fast and easy to perform, with minimal amount of equipment and fairy accurate results. Cardiovascular Fitness ‘Cardiorespiratory endurance is related to the development of the cardiovascular and respiratory systems’ ability to maintain oxygen delivery to working muscles during prolonged exercise.’ (Kenney et al, 2012) Cardiovascular endurance supplies oxygen to the muscles and organs during exercise through the Heart, blood, blood vessels and respiratory system. Differing from Muscular Endurance, Cardiovascular Endurance is focuses on the entire body and hearts ability to sustain repeated aerobic exercise over a prolonged period of time, in 6 SAMPLE 2 – STUDENT WORK comparison to muscular endurance which is specific to individual muscle groups. An effective way to measure cardiovascular endurance is by performing a cooper run. This entails marking out a 25mx4 running track or 100m loop (dependant on size and location) and counting how many laps/how much distance can be covered in twelve minutes. The outcome, after working at maximum level, running as fast as possible for twelve minutes, you are able to calculate the distance covered and can use this to identify the levels of cardiovascular fitness. The cooper run is a simple way to calculate CV endurance and VO2max levels simply and at no cost. Equipment needed consists of marking cones and a tape measure to accurately create the running distance, and stationary to note down the amount of laps ran/distance covered. This form of testing is useful for a training team or group of runners as it allows as many participants to run within the twelve minute mark. The disadvantages however; performance can be highly susceptible by the motivation of others and the surroundings. Participants are more likely to receive better results in weather with less rain/wind/cold or in an indoor environment. And the encouragement of others may give different results to the absence of friendly drive. If using an area outdoors is unavailable, the test can be performed on a treadmill, the gradient must be set to 1% and the athlete can then begin the twelve minute run. Long distance swimming demands an extremely high level of cardiovascular fitness to ensure increased oxygen-delivery to all the working muscles which the swimmer is using. Many long distance swimmers have exceptionally large lung capacities due to training efficient oxygen use and making sure intake timings of breath are effective for the length of stroke timing and time spent under water. In competitive events, some swimmers must take on rapid breathing techniques such as only breathing from one side as the competitor swimming alongside could be splashing/ making it more difficult to intake breath. Ensuring enough oxygen is inhaled is critically important in prevent muscles from early fatigue during races. Many open water mass participation events begin at 1km and ‘marathon’ style events such as the ‘Swim around Manhattan’ can be as long as 24 miles. The stamina and training which is required to be able to compete in an event as such is a monumental task on the muscles, body and mind. In comparison, although it is not perceived as the most 7 SAMPLE 2 – STUDENT WORK important component of fitness a sprinter would need to incorporate into a training plan, cardiovascular endurance and aerobic training can play a significant role in increasing a sprinters resting recovery rate. Kenney et al (2012) state ‘the rest periods are so short that full recovery cannot occur, thus stressing the aerobic system.’ Sprinting techniques use short sharp bursts of powerful energy to sprint as many strides as possible for the fastest time. A sprinter’s cardiovascular fitness is incorporated when the maximal effort sprint is finished, the cardiovascular system works as hard as possible to pump blood around the body as help speed up the recovery rate, Mens Fitness states that an example first part of a training session consists of ‘8 x 200m, walk back in 2 minutes for rest, target time: 30 seconds or under.’ Examples such as this give a clear indication of the level of effort which is needed for sprint training and the athlete must be ready to run again in under two minutes. With increased training the cardiovascular system will be forced into working harder and ensuring a faster recovery time. Muscular Strength ‘Muscular strength is defined as the maximum force that can be exerted by a muscle or muscle group against a resistance.’ (Aquatic Exercise Association, 2010) Many sprinting athletes use training sessions to focus on Hypertrophy and building more muscular strength to gain more force and power on the running track. Muscular strength can be measured by a One- rep-max leg press. The only equipment which is needed for this text is the leg press machine which can be found in most gymnasiums. The athlete takes position on the machine with the back flat against the seat and the legs resting on the plate at a ninety degree angle. Beginning with a low weight, the participant performs one full 8 SAMPLE 2 – STUDENT WORK repetition (press) with good technique. Then after additional weight is added the athlete can perform the movement again still holding the technique, this is continued until the heaviest weight possible can be pressed and can no longer be increased. This is a simple test to conduct and can be done without an assessor if needs be, it gives a strong indication of the athletes level of muscular strength, however focus’ on the sole strength of the lower body and does not incorporate the upper. Sprinters train to develop remarkable muscular strength to be able to use as much force and power so that as soon as the gunshot fires, they can put maximal effort into their sprint start. Acceleration begins within the upper body; many sprinters have extremely well developed upper body strength to benefit maximal good starts. In addition to this, a well-built abdominal strength will assist the athlete in good technique and stability. Figure 3 (right) shows Olympic medal holder Harry Aikines- Aryeetey. His sample weekly training programme consists of six days a week, four hours a day split between morning and evening sessions. He includes four sessions on the track with variations of sprints, hill running and parachute running. Alongside three gym sessions a week with weights and circuits, followed by one session of Pilates and a rest day on a Sunday with an optional light swim and sauna (http://www.harry-aaFigure 3- above official.com/default.aspx?id=709) The main training focus is around weights and speed training, both of which depends heavily upon muscular strength growth and maintenance. Training muscular strength in any form be it; circuits, interval, continuous, will help reduce excess body fat and help to build and maintain lean body fat. Many elite sprinters have 9 SAMPLE 2 – STUDENT WORK an astoundingly low amount of body fat due to the sheer volume of lean muscle composed in their physiques. As an endurance based athlete, long distance swimmers would not prioritise a high level of muscular strength over cardiovascular fitness. However many swimmers incorporate one or two strength building training sessions a week to help toughen muscles and tone excess body fat. Many long distance swimmers can be training extensive hours per day covering hundreds of metres and therefore require a certain level of strength to be able to withhold the exercise demands on the body. In contrast to land- based training which uses weights a resistance, in swimming, water acts as the resistance to the athlete. The stronger the athlete the less effect the resistance has. Skill Components Hoeger and Hoeger (2011) state; ‘Skill related components of fitness are related primarily to successful sports and motor skill performance.’ The skill related components of fitness are essential for not only the progression of sporting performances; but also in everyday life. Many of these skill factors are found to visibly decrease with ageing or illness. It is extremely common for balance to reduce with age, many elderly people becoming more sustainable to falls and injury. With this in concern, it emphasises the importance of maintaining good levels of health and skill related fitness components, especially with age. Agility ‘Agility and quickness are complex sporting skills that include both physical and cognitive components.’ (Dawes and Roozen, 2012) 10 SAMPLE 2 – STUDENT WORK Athletic training programmes must include aspects involving drills which target agility, as almost all sportsmen will incorporate it into their game, many without realising. By maximising agility performance, an athlete will be able to not only move, but also think on a much faster time scale. A high level of agility is key for the long distance swimmer in an indoor environment whilst racing. The athlete will encounter a literal wall at the end of each lap, and distance depending, this may happen tens to hundreds of times per race. The body’s ability to change direction with as much speed and accurate technique as possible can be essential for winning or losing the race by a fraction. One of the most frequently used methods of testing agility is the Illinois agility test. This routine involves minimal equipment; stopwatch, measuring tape and cones. The course tests the athlete’s ability to accelerate and use their agility skills to manoeuvre around the cones in the fastest time possible without missing any cones/ running short. Balance For athletes, balance plays a significant role in being able to stay upright and in control of the body. For the long distance swimmer, balance works alongside buoyancy in the swimming pool. Having the ability to hold yourself within the water whilst maintaining good technique and speed is essential for excelling in the race. Balance is in essence, similar to agility as they both require the athlete to use concentration, core strength, and good technique. During the first few seconds of a race, the sprinters ideal is to exert as much power as possible throughout the lower body whilst propelling with the arms from a starting block position, to upright. Balance plays the role by allowing the runner to maintain a good centre of gravity. In balance’s absence, the athlete would struggle to hold him/herself in the most effective position. Simple exercises such as stretching and resistance training can help to improve balance. 11 SAMPLE 2 – STUDENT WORK Coordination ‘Coordination is the ability to carry out a series of movements smoothly and efficiently.’ (Gifford and Dicker, 2010) Coordination involves being able to use the muscles, joints, mind and senses. Each everyday activity involves the use of coordination, whether it’s driving a car or climbing up the stairs. In a sporting environment specific for the long distance swimmer; the use of sight may be impaired, therefore they may rely more heavily on senses such as feel to direct them. Being able to move the arms and feet in synchronise is the basic skill needed for any swimmer. Having coordination allows the athlete to use the correct technique and not waste any energy. Knowing when to accelerate, and when to prepare yourself for the end of the lane (equalling a tumble turn) is all down to the body and mind’s coordination skills for preparing to turn. (Winter, 2009) Similarly, the sprinter uses coordination to drive the arms and legs in the quickest time possible, to win the race. Power Power = Force x Velocity ‘In sprinting events , the aim is to run as fast as possible over a short, specified distance and reach the finishing line before the opponent.’ (Heinemann, 2004) Power is essential for allowing the sprinter to produce as much force as possible to accelerate forward. Required specifically in the arms and legs to act as the driving strength in the race. The more power the athlete has, the more driving force is produced during the race to win. Many sprinters have extremely good levels of muscular strength to compliment levels of power. In contrast, the long distance swimmer uses the bulk of his/her power to push and propel off the side 12 SAMPLE 2 – STUDENT WORK of the swimming pool. By exerting as much power as possible, they are able to move much easier and faster through the resistance (water.) Reaction Time ‘Reaction time is the ability to respond to a stimulus quickly.’ (Basheal et al, 2001) Reaction time is categorised into two areas; Simple and Choice. A simple reaction time is our immediate response to a stimulus, for example, the gun shot fired at the beginning of a running race. This depends heavily upon our ability to respond naturally as it is difficult to work on improving the natural response to a stimulus. This is skill is crucial for both the sprinter and the long distance swimmer. Both athletes must be able to respond to the starting noise as rapidly as possible to give them the fastest start possible, the more accurate the reaction time, the faster the acceleration into the lead. Choice reaction time is less important for the two chosen athletes, as this aspect incorporates the response to a moving stimulus which then has to be reacted with. For example, a team sport such as football would use this when passing the ball from one team member to another, and it is the speed of the next movement (passing again) which is important for reacting. Speed ‘Speed is the change in distance over time.’ (Williams and Wilkins, 2013) According to the ACSM, an athlete reaches maximal speed whilst running between 20 and 40 metres. Speed is the most important skill related component of fitness for a sprinter as their initial goal is to cross the finish line as fast as possible. They need maximal acceleration every time the gunshot fires. The difficulty found by most sprinters is maintaining the highest speed possible throughout the race, as the build-up of lactic acid will occur after a few seconds and slow the sprinter down. By efficiently training and working on the best possible technique, sprinters are able to improve their speed and their personal 13 SAMPLE 2 – STUDENT WORK best times. Speed for the long distance swimmer is vital throughout the entire race whilst also working at a level which can be maintained. This component will furthermore become of extreme importance in the last stretch of the race. The swimmer must use all remaining energy to exert power and speed to overtake any competitors and win the race. Analysis Long distance swimmer A long distance swimmer uses many skill related components of fitness to help improve performance. The initial starting point is reaction time. The body’s physical reaction time is usually something which cannot be trained. An immediate reaction to a stimulus i.e. the starting whistle, is something which can be worked upon in training and with technique. By having a good reaction time it allows the swimmer to catch a strong start to the race, a factor which may be the difference between winning by a millisecond, or losing. Speed is a component which is not first to be used within an endurance based race, the athlete must be able to maintain a pace throughout the race which allows him/her to make progress without experiencing muscle fatigue too early on. The speed is an overall component which the athlete must have to qualify for heats and win races, the consistency of the speed is the winning factor, not the immediate explosive speed needed towards the end of the race. A long distance swimmer would need a fairly good level of agility during races which are held in indoor pools. The ability to change direction quickly without fault is vital in gaining the lead in a race and not dropping any seconds to a component. The athlete will use balance during the race to maintain a strong posture and good technique. If the swimmer is competing in a butterfly style race, they need to be able to easily maneuverer through the water with faultless technique and composure. If a swimmer had poor coordination they would be unable to perform the stroke to an efficient level. Understanding when to stroke and when to pull back at correct timings comes with experience and training. When taking in a breath, the swimmer needs to maximise the use of the oxygen stroke 14 SAMPLE 2 – STUDENT WORK alongside the physical arms and legs stroke and understand when to take the next breath. Power, in relation to muscular strength, is also similar in the sense it is needed throughout the entire race for speed and force in cutting through the resisting water. The power exerted by the swimmer will in fact be the result in how fast and how strong of a swimmer the athlete is. The entire body’s muscles are used during the race and without power, the athlete would fail to excel. Sprinter A sprinter uses the skill related components in different protocols. Reaction time, speed and power are the most important skill related components of fitness which every sprinter needs to excel with, within the race. The immediate reaction to the gunshot entitling the start of the race is seen as more important than the actual speed of the sprinter. Many athletes may lose by milliseconds due to a poorer reaction time than the opponent. ‘In the 1988 Olympics, Ben Johnson ran 9.79 and Carl Lewis ran 9.92 in the 100 meters’ (online.) With evaluation into the ten-metre-splits of the race, What allowed Johnson to take the lead was his unfaultable reaction time to the starting gun and his ability to maintain a higher speed than Lewis. It is often considered that during the first twenty metres of the race, the acceleration phase where the sprinter gradually moves into a vertical running position from the blocks, it is in this moment where the sprinter can gain or lose the lead due to bad technique. Elite reaction times are within the range of 120 mSec (0.12 seconds) to 160 mSec (0.16 seconds.) At this point is where the next skill component of fitness is introduced; Speed. ‘Sprinting success is dependent on rapid reaction to the race start, acceleration out of the block, and linear speed over the course of the race.’ (Brown et al , 2014) The speed endurance phase ranged from sixty, to the finishing one hundred metres. During this phase, the athlete is sprinting at maximum capacity using the anaerobic system to work without oxygen for as long as possible without fatigue. The difficulty begins in maintaining the maximum speed for more than a few seconds due to the intense accumulation of lactic acid. It is also 15 SAMPLE 2 – STUDENT WORK during this phase where athlete’s build-up of muscular endurance is incorporated due to the repetitive training of the 100m sprint. The power produced by the athlete is the combined product or strength and speed. The hours training muscular strength are what are incorporated into the power which is produced by the sprinter. The faster and stronger the athlete, the more power is produced. The Illinois agility test can help the sprinter improve their agility levels or using an agility ladder is also an effective mechanism. Research has suggested the improvement of balance by using equipment such as stability balls, can help sprinters improve postural stability and centre of gravity whilst helping to strengthen and condition muscles. Better coordination can help to make a runner more powerful and efficient within the race. Exercises such as completing lunge matrix’s will significantly help improve coordination for the athlete. 16 SAMPLE 2 – STUDENT WORK Reference List Coulson and Archer (2011), Practical Fitness Testing, London, England, A&C Black Publishers Garret, Donald and Kirkendall (2000) , Exercise and Sport Science, Philadelphia, USA, Bi- Comp/ PRD Group Lawrence (2004) Exercise in Water, London, England, A&C Black Publishers Figure 1 – online http://www.alligator.org/news/campus/article_dcc347ae-f3c5-11e0-bf6a001cc4c002e0.html?mode=jqm Lerwill ( 2009) Royal Marines Fitness, Somerset, UK, Haynes Publishing http://www.livestrong.com/article/78338-measure-muscular-endurance/ http://www.coachr.org/strength_muscular_endurance_and_power_in_spo rts.htm Manore, Meyer and Thompson (2009) Sport Nutrition for Health and Performance, Champaign, IL, USA, Human Kinetics Reaburn (2014), Nutrition and Performance in Masters Athletes, Florida, USA, Taylor & Francis Group LLC Figure 2- http://www.mcsport.ie/v4/efe3ebc9-f32d-4915-b7bcfbbbb13bed2f/images/product_images/ASS003-600_600.jpg http://www.topendsports.com/testing/tests/sit-and-reach-presidents.htm# http://www.acefitness.org/acefit/fitness-fact/1/cardiovascular-exercise/ Kenney, Wilmore and Costil (2012) Physiology of Sport and Exercise, Champaign, IL, USA, Human Kinetics http://www.brianmac.co.uk/gentest.htm 17 SAMPLE 2 – STUDENT WORK http://www.bldsa.org.uk/ Kenney, Wilmore and Costil (2012) Physiology of Sport and Exercise, Champaign, IL, USA, Human Kinetics http://www.runnersworld.com/running-tips/9-steps-to-faster-sprinting Men’s Fitness, http://www.mensfitness.com/training/endurance/trainlike-an-olympic-sprinter?page=3#sthash.NWGkobBR.dpuf Aquatic Exercise Association (2010), Aquatic Fitness Professional Manual, Champaign, IL, USA, Human Kinetics Figure 3- online http://loughboroughsport.com/athletics/ http://livehealthy.chron.com/keys-being-distance-swimmer-2532.html http://www.poliquingroup.com/ArticlesMultimedia/Articles/Article/845/F ive_Things_You_Probably_Didnt_Know_About_Sprintin.aspx Hoeger and Hoeger, (2011), Lifetime physical fitness and wellness, Belmont, CA, Cengage Learning Dawes and Roozen, (2012), Developing agility and quickness, Champaign, IL, Human Kinetics http://www.topendsports.com/fitness/balance.htm# Gifford and Dicker, (2010), Sporting Activities, London, England, Evans Brothers Limited Winter (2009) Biomechanics and motor control of human movement. John Wiley & Sons Heinemann, (2004) Sports Development and Fitness Options, Basheal, Sibson and Taylor, (2001) The World of Sport Examined, Cheltenham, Thomas Nelson and Sons LTD Williams and Wilkins (20130 ACSM’s Resources for the Personal Trainer, ASCM Brown, Lee, Ferrigno, and Vance (2014) Training for Speed, Agility and Quickness, Champaign, IL, USA, Human Kinetics 18 SAMPLE 2 – STUDENT WORK http://livehealthy.chron.com/mechanical-power-used-sprinter-3837.html 19
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