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HSC PDHPE Core 2: Factors Affecting Performance •Types of training and training methods “For athletes to be prepared to perform they need to train. Coaches and athletes need to understand that there are various types of training that are specifically designed to develop aerobic capacity, strength and flexibility, and that each is closely linked to the energy systems and principles of training. AT The most common types of training are: •Aerobic (continuous, fartlek, aerobic, interval & circuit) •Anaerobic (anaerobic interval) •Flexibility (Static, ballistic, PNF, dynamic) •Strength training (free weights, fixed weights, elastic, hydraulic). PDHPE Application and Inquiry HSC Course •Types of training and training methods - Aerobic, eg Continuous, fartlek, aerobic, interval, circuit “The two most common training methods used for developing aerobic fitness are continuous training and aerobic interval training. There are a number of popular modifications of these two techniques”. “The most common form of aerobic training is called continuous training. In this form of training, the heart rate is elevated and maintained by using jogging, power walking, cycling, swimming, aerobic floor classes, or any other form of exercise that elevates the heart rate. It should be performed continuously for a minimum of 20 minutes. Continuous training is generally of a long duration and moderate intensity: 70-85 per cent of maximum heart rate for 30 mins to 2 hrs”. PDHPE Application and Inquiry HSC Course “Although continuous training is effective in producing a training effect, it might not necessarily replicate the performance requirements. In other words, it might not be specific enough for the requirements of some sports or positions, or it might be too difficult to train at the same level as the competition requires. Consequently, other forms of aerobic endurance training have been developed”. PDHPE Application and Inquiry HSC Course “Interval training involves the breakdown of the training period into intervals of exercise or work, followed by periods of rest or relief. Two basic rationales underpin interval training. These are that such training: •Is better for adapting the nervous system to the movement patterns experienced in competition. •Allows the athlete to exercise for a longer period of time at high intensity, thereby aiding adaptations in the aerobic metabolic systems in the muscle”. “ The major variables that are manipulated in interval training are: Time (duration) Intensity “ These can be adjusted to provide improvements in both aerobic and anaerobic training”. PDHPE Application and Inquiry HSC Course Time (Duration) Intensity “In aerobic training, the duration of the exercise interval needs to be long enough to allow athletes to reach their maximal oxygen uptake (max VO2), but be short enough not to bring on fatigue. It is usually suggested that both brief and longer periods of exercise be included in interval training programs”. “The intensity should allow athletes to reach their max VO2, but the rest intervals should usually be active, such as walking or jogging slowly. This helps to remove accumulated lactic acid from the blood, and allows athletes to train longer. Two factors that are important here are training time and training distance. Training time is the rate at which the work is to be completed” PDHPE Application and Inquiry HSC Course “Aerobic interval training involves moderate-duration and high intensity ‘pace or tempo’ training: 85-90 per cent of maximum heart rate, very near to lactate threshold for 30-60 minutes in bouts of 4-10 minutes. Swimmers use this type of training regularly when they compete a series of sets while training: for example, completing five sets of 400 metres every 7-8 minutes. Runners might run 1200 metres then walk for half a lap then repeat the process four to five times”. PDHPE Application and Inquiry HSC Course “Fartlek training is the Swedish name for Speed Play. Speed Play is a combination of continuous training and interval training in that it involves continuous effort with periods of high intensity, followed by a recovery period. Generally speaking, the bursts of speed are usually of 5-10 seconds duration, and are repeated every 2-3 minutes. Speed Play is usually performed over undulating terrain (such as up and down hills) and is less formalised than interval training. The degree of aerobic versus anaerobic work is dependant on the athletes, and how they feel during the workout. The predominant improvement is seen in aerobic capacity. Speed Play can be easily adjusted to meet the needs of most athletes, and the needs of both interval and continuous systems.”. PDHPE Application and Inquiry HSC Course “An example of a Fartlek training session is: 1. Jog for 10 minutes to warm up, then stretch 2. Run for 800-1500 metres at a fast, steady speed. 3. Walk rapidly for 3 minutes 4. Run continuously for 2000 metres, interpersing with a 50 metre sprint every 300 metres 5. Run three lots of 400 metres at a fast pace, with a 400 metre jog between each fast run 6. Run slowly for 2 minutes 7. Cool down and stretch”. PDHPE Application and Inquiry HSC Course “Circuit training is an arrangement of exercises that requires the athlete to spend some time completing each exercise before moving on. It is an excellent way to improve mobility and at the same time, build strength and stamina. Depending on the equipment available, circuits can be developed to improve general fitness or can be highly specialised to meet the specific needs of certain athletes. Circuit training usually consists of 6-10 strength type exercises that are completed one after the other. Body parts are also alternated so that consecutive exercises don’t work the same muscle groups”. PDHPE Application and Inquiry HSC Course 1. Power Jumps 1. Bench Stepping 2. Stretches 3. Push Ups 6. Mini Tramp 5. Shuttle Runs 4. Sit Ups Outcomes 2 HSC Course •Types of training and training methods -Anaerobic (anaerobic interval) “Anaerobic training uses high intensity work coupled with limited recovery to develop systems of energy supply that function in the absence of oxygen. Anaerobic training is shorter in duration than aerobic training, lasting less than two minutes. While activity is brief, effort is maximal followed by short rest periods that do not allow full recovery of systems that supply energy”. “There are three types of anaerobic training: •Short anaerobic training lasts less than 25 seconds and develops the ATP/PC systems of energy supply •Medium anaerobic training lasts from 25 seconds to one minute and develops the lactic acid system for energy supply •Long anaerobic training lasts one to two minutes and develops the lactic acid/aerobic systems”. Outcomes 2 HSC Course “Anaerobic interval training can best be described as sprint training over short distances using maximal effort. Most anaerobic interval training is directed towards the development of speed as might be required in 100 metre sprinting and for short bursts in games such as touch football. To develop speed while focusing on technique, the rest period needs to be slightly extended to allow lactate to disperse, as lactate buildup inhibits the development of quality with the sprinting action”. Outcomes 2 HSC Course Types of interval training: Interval Use Work Duration Rest Duration Work-rest ratio Repetitio ns % of maximum speed % of maximum heart rate Long Anaerobic threshold training 2-5 mins 2-5 mins 1:1 4-6 70-80 85-90 Medium Anaerobic training 60-90 secs 120-180 secs 1:2 8-12 80-90 95 Short High energy training (aerobic) 30-60 secs 90-180 secs 1:3 15-20 95 100 Sprint Speed (anaerobic) 10-30 secs 30-90 secs 1:3 25+ 100 100 Outcomes 2 HSC Course •Types of training and training methods -Flexibility, eg Static, ballistic, PNF, Dynamic “Flexibility refers to the range of motion of a joint or group of joints. There are a number of ways in which flexibility can be utlised, including static stretching, proprioceptive neuromuscular facilitation (PNF), dynamic stretching and ballistic stretching – the first two involve passive stretching and the last two involve movement”. “The degree of flexibility of motion varies among people and depends on the structural characteristics of their joint and its connective tissue. Flexibility decreases with age primarily due to loss of elasticity and joint mobility. Generally, females are more flexible than males. A flexible person will have improved neuromuscular pathways, which will minimise injuries. Temperature also influences flexibility, as an increased range of motion is available in warmer temperatures”. PDHPE in Focus: HSC Course “When a muscle is stretched, receptors within the muscle, known as muscle spindles are stimulated. They record the change in length and send a signal to the spine, which then sends a message to the brain that the muscle is being extended. If the muscle is overstretched or stretched too fast, the spinal cord sends a reflex message to the muscle to contract. This is a basic protective mechanism, referred to as the stretch reflex, to help prevent over stretching and injury”. PDHPE in Focus: HSC Course “This is a form of passive stretching and consists of stretching a muscle to its farthest point or limit and then maintaining or holding that position for a period of 15-30 seconds. This is the most commonly used flexibility technique and is very safe and effective, because it is done in a controlled slow manner. Static stretching is used extensively with athletes recovering from injury to ensure that the muscle fibres are being aligned properly in the rehabilitation phase. This stretch should be performed without discomfort of pain”. “The PNF (proprioceptive neuromuscular facilitation) method is a combined technique of static stretching and isometric stretching and works with the muscle spindle to get used to the new length of the muscle. A muscle group is statically stretched, and then contracts isometrically against resistance while in the stretched position. It is then statically stretched again through the resulting increased range of motion. PNF stretching usually requires the use of a partner to provide resistance against the isometric contraction; the static stretch will help the muscle spindle get used to the new length of the muscle after it has been isometrically stretched”. “This method involves actively moving parts of the body being stretched to increase the length of the muscle. It is a controlled movement, which takes the muscle to its limits where it is guided by the stretch reflex on how far to stretch. Dynamic stretching does not force the muscle beyond its normal range of motion. An example would be swinging a golf club just prior to the shot being played”. “Ballistic stretching is a form of dynamic stretching and is generally known as bounce stretching. It was very popular “in the 1950’s and 1960s but has since been discredited because of the damage it causes to muscles. Due to the force of the stretch, the stretch flex comes into play and places great pressure on the muscle fibres. Extended use of ballistic stretching will in fact decrease flexibility. This is because it leaves muscles in a state of contraction and the repair of the micro tears leads to further reduction in flexibility. However, ballistic stretching can be useful in some performances where ballistic and explosive actions are required. In these cases it should be part of the third stage of warm up after a general warm up, static stretch and an active stretch period.