Presentation on theme: "ACHPER NSW PDHPE HSC Enrichment Days 2009 Improving Performance."— Presentation transcript:
ACHPER NSW PDHPE HSC Enrichment Days 2009 Improving Performance
Concept map of focus questions
Profile of case study athlete: Cyclist – Lance Armstrong Event: Tour de France Characteristics of Event: -Runs for 3 weeks, consists of 20 stages - Total distance= 2657km, longest stage = 239.5km -2004m was the altitude of the highest climb on the 2005 tour Training: Endurance, resistance, and altitude training Best known as: -Seven-time winner of the Tour de France (from )
Endurance training The main training methods used to develop aerobic capacity are: 1.Interval training (combining several high intensity bouts of activity) 2.Continuous training (consistent activity at a steady intensity) 3.Fartlek training (continuous activity with bursts of high intensity activity) 4.Resistance training (working against a weight, force or gravity, such as weight training with a low load and high reps) Which method would you recommend for improving the performance of a cyclist competing in the Tour de France?
Some effects of training on the aerobic system Effect of trainingWhy/How? (Explanation) Reduced heart rateThe heart becomes more efficient as it can pump blood without needing to pump a lot of times Increased stroke volumeThe heart pumps out more blood with each beat as it is more efficient Increased cardiac outputMore blood is available to tissues due to increased stroke volume Increased oxygen uptakeEndurance training increases the body’s capacity to use the oxygen inspired efficiently Increased lung capacityThere is an increase in air breathed in and out during a single breath with training Increase in haemoglobinDue to increased blood volume leading to more access to oxygen for aerobic performance
Measuring Training Effect VO2 max = amount of oxygen consumed per minute. A measure of VO2 max determines an athlete’s endurance capacity. The greater an athlete’s VO2 max, the better their cardiovascular endurance. Tests are usually done under lab conditions. However, they are: -expensive, time consuming, not accessible to everyone, and physically demanding. VO2 max prediction tests include the Astrand bicycle test, 12 minute run, and beep test. Test should be specific to the athlete’s sport
Environmental considerations Altitude = height above sea level As altitudes increase to above 1500m,the ability to sustain physical activity is affected. As altitude increases, the partial pressure of oxygen decreases. How does altitude then affect performance? Altitude changes at one stage of the Tour de France
How do athletes prepare for competition at high altitudes? Acclimatise = ensure body adjusts and adapts to the demands of competing in a certain climate Increase fluid intake Wear sun protection Are there any costs associated with altitude training?
The use of technology in endurance cycling Training innovation = an aid that assists training and competition performance.