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Middle Distance Running Characteristics of the Sport Middle distance events are held on the track and include 800 m (2 laps), 1500 m (3 3/4 laps) and 5 km (12 1/2 laps). Weekly competitions are held over summer with the major events towards the end of the season. Not all runners will compete weekly, in fact it is more common to race less regularly and increase the number of races at the end of the season in preparation for a specified championship. Middle distance running combines the use of both aerobic and anaerobic energy systems and requires athletes to possess a high level of speed endurance. Training Training for middle distance events varies widely depending on the phase in the competitive season and the strengths of the athlete. Total mileage can vary between athletes and may include one to two workouts a day of four to twelve kilometre track sessions, easy runs and tempo running. In addition, many of these athletes will undertake gym sessions to develop extra strength and muscular endurance. Some runners include stretching sessions, yoga, and pilates to aid in recovery. Physical Characteristics Middle distance runners are typically of medium height, and very lean and muscular. These athletes need to have a good power-to-weight ratio, but also need to possess a low absolute body fat level. Common Nutrition Issues Training Nutrition Middle distance runners need to consume diets high in carbohydrate to replace the stores that are used during training but also need to be mindful of maintaining low body fat levels. Diets need to be nutrient-dense and carbohydrate-rich. This is best achieved by including a wide variety of nutrient-dense carbohydrate sources such as bread, cereal, fruit, vegetables and sweetened dairy products in the diet. Appropriate snacks should be included before and after training to maximise performance during training and to promote recovery. Include snack foods such as yoghurt, fresh fruit, low-fat flavoured milk and sandwiches as these are all nutritious fuel foods. Most middle distance runners (even elite) will combine full-time employment or study with training. Training can take up many hours leaving little time to think about obtaining and preparing healthy meals. Athletes needs to be organised to ensure the shopping can be done regularly and that the pantry is well stocked. A successful plan is to shop weekly from a shopping list with the required items for recipes to be prepared in the coming week. Leftovers during the week can be frozen for nights when training finishes late or athletes are too tired to cook. Some commercial frozen meals are now catering for active people and are useful to have stored in the freezer for these occasions. Physique Middle distance runners require low body fat levels whilst being strong and muscular. These athletes are often conscious of their diet in an effort to keep body fat levels low. Runners needing to reduce their body fat level should target excess kilojoules in the diet. In particular, excess fat, sugary foods and alcohol can add unnecessary kilojoules and would be better replaced with more nutrient-dense foods. Fatigue A common concern for the middle distance runner and their coach is fatigue. There are many misconceptions surrounding why fatigue might occur and how athletes should handle it. Fatigue can be a natural consequence of training or an over committed lifestyle, however nutritional reasons should not be underestimated. Low carbohydrate diets, inadequate iron intake, skipping meals, inadequate fluid replacement and poor food choices can all cause fatigue. Runners should ensure that they make time to adopt healthy eating patterns and not cut out entire food groups from their diet without appropriate substitutions. Replacing fluid between training sessions is also very important. Fluid Many runners claim to feel heavy if they consume large amounts of fluid during training and as a result fail to hydrate adequately while exercising. Athletes should be encouraged to sip small amounts of fluid regularly at training, but also have plenty of fluids between repetitions or in gym sessions. Carrying a bottle around during the day will help to reach fluid goals between sessions. Iron Middle distance runners are particularly susceptible to low iron status for various reasons. Some of these include damage to red blood cells from the pounding of feet on the track, iron losses in sweat, gastrointestinal bleeding which may occur through heavy training or anti-inflammatory use, low dietary intake of well absorbed iron and menstrual losses in females. If in doubt, athletes can have iron levels checked by a sports physician on a rest day or earlier in the day on a regular training day. In addition, a sports dietitian will be able to help athletes to increase their intake of iron-rich foods that are well absorbed by the body. Plant-based iron foods such as green vegetables, are poorly absorbed compared to animal-based iron foods such as meat. Supplements Some runners try to replace sound nutritional practices with vitamin pills, protein powders and liquid formulas. Popping a pill is not a quick fix to feeling flat and run down. Rather, it is necessary to address the issue of taking time to eat well and organising an appropriate training program with adequate rest. Addressing lifestyle habits and putting good healthy eating in place will be more useful than expensive pills. Some supplements can help in certain situations, but this is best assessed by a sports physician and sports dietitian. The AIS has developed a Sports Supplement Policy to assist athletes and coaches in making educated decisions on the use of dietary supplements and ergogenic aids. Case Study: Feeling FlakySue is a dedicated runner who trains with an athletics club three times a week and does additional training runs and gym sessions in between. In the past year she has stepped up her training mileage in an effort to run well over the summer season and improve her 1500 metre personal best. Sue's mileage increased, as did the amount of time dedicated to her studies. Studying full-time, working part-time, and training was certainly a juggling act. In addition, Sue noticed that many of the elite female runners were very lean and decided to decrease her weight to mimic other runners. Sue's eating habits reflected her over-committed lifestyle. Food was grabbed on the run and the quantities were decreased in order to lose weight. Sue believed that having to miss meals because she was too busy would only speed up her weight loss. She would grab some jelly beans and a diet soft drink later in the afternoon if the hunger set in. Sue believed these foods were OK because they contained no fat. Initially, the weight came off and Sue still maintained her training load, with work and study. She still had the energy to socialise with friends on the weekends and was feeling good. Soon enough, Sue began to feel tired in the afternoons and caught a cold which she couldn't shake. She also lacked motivation for training and racing. She didn't feel like going out on weekends and preferred to take things easy. Training began to suffer and her race times became slower. Sue's coach suggested she see a sports physician as it was common for female runners to suffer low iron status. Her iron levels came back normal, so Sue decided to talk with a sports dietitian who investigated her eating habits. Sue described her daily meal routine as sporadic, every day was different, but focused on low fat foods and sugary snacks. It was suggested to Sue that a low fat diet did not necessarily mean a healthy diet. It is important to have a balance of carbohydrate, protein, fat, vitamins and minerals. Sue and the dietitian discussed ways to allow her to have three nutritious meals a day by organising her shopping and cooking routine. Appropriate snacks between meals now include fresh fruit, yoghurt or cereal bars instead of jelly beans and soft drink. Sue found that while initially she regained some weight, she also regained her zip for training and racing. A balanced diet meant better energy levels and better performance. You will find more information about running at the
Australian Institute of Sport on the
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The Department of Sports Nutrition is a program of the
Australian Institute of Sport General enquires can be emailed to: aisnutrition@ausport.gov.au Copyright
© Australian Sports Commission
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