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Other physiological tests

Other physiological tests. Factors That Contribute to Physical Performance. What the Athlete Gains From Physiological Testing. Information regarding strengths and weaknesses Can serve as baseline data to plan training programs Feedback regarding effectiveness of training program

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Other physiological tests

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  1. Other physiological tests

  2. Factors That Contribute to Physical Performance

  3. What the Athlete Gains From Physiological Testing • Information regarding strengths and weaknesses • Can serve as baseline data to plan training programs • Feedback regarding effectiveness of training program • Understanding about the physiology of exercise

  4. Effective Physiological Testing • Relevant to the sport • Valid and reliable • Sport-specific • Repeated at regular intervals • Carefully controlled procedures • Interpreted to the coach and athlete

  5. Maximal Run Tests • Measure how far a person can run in a set time or how fast they can run a set distance • Cooper’s 12-minute run and 1.5 mile run • AAPHERD’s 1-mile run/walk • VO2max estimates based on the linear relationship between running speed and oxygen cost of running

  6. Canadian Home Fitness Test • Uses 8-inch steps to evaluate cardiorespiratory fitness • Measure HR after 3 minutes of stepping • Stop if it exceeds maximum allowable HR based on age • Continue for another 3 minutes if it is below maximum allowable HR • Fitness level is based on post-exercise HR

  7. Estimation of VO2max From a Submaximal Treadmill Test

  8. The Y’s Way to Physical Fitness Cycle Ergometer Protocol

  9. Predicting VO2max From Submaximal Step Test

  10. The Yo-Yo Intermittent Recovery Test • The Yo-Yo IR level 1 (Yo-Yo IR1) test focuses on the capacity to carry out intermittent exercise leading to a maximal activation of the aerobic system • Yo-Yo IR level 2 (Yo-Yo IR2) determines an individual’s ability to recover from repeated exercise with a high contribution from the anaerobic system • more sensitive measure of changes in performance than maximum oxygen uptake • Widely used, valid, reliable

  11. Protocols for Yo-yo IR1 and IR2 Bangsbo et al, Sports Med, 2008

  12. Physiological responses in Yo-yo test

  13. Reproducibility of Yo-yo test

  14. Relationship between performance and Yo-Yo test

  15. Use Yo-yo test to monitor seasonal changes

  16. Yo-yo test vs Maximal VO2

  17. Laboratory Tests to Predict Endurance Performance • Lactate threshold • Exercise intensity at which blood lactic acid begins to systematically increase • Blood samples taken during incremental exercise • Critical power • Speed at which running speed/time curve reaches plateau • An important parameter for aerobic function • Peak running velocity • Highest speed that can be maintained for >5 seconds

  18. Test to measure critical power • Several all-out running/cycling exercise at different power (W) • Time consuming, effort consuming • 3-min all-out cycling exercise • Subjects need to be highly motivated and fully familiarized with the test protocol • During the test, pacing is prevented by absence of any time-based feedback, and the subject is strongly encouraged to maximize power output, at all times. • no decremental trend at any point during the test and attains >95% VO2max

  19. Critical Power

  20. Predicting Performance From Peak Running Velocity

  21. Critical power and training intensity Jones et al, MSSE 2010

  22. Critical power and VO2max/lactate Jones et al, MSSE 2010

  23. Critical power and PCr Jones et al, MSSE 2010

  24. Measure critical power in 3-min all-out exercise Jones et al, MSSE 2010

  25. Tests to Determine Running Economy • Measurement of the oxygen cost of running at various speeds • Greater running economy reflected in lower oxygen cost • Higher economy means that less energy is expended to maintain a given speed

  26. Running Economy

  27. Estimating 10,000m Running Time Using LT and Running Economy • VO2 at LT • 40 ml•kg-1•min-1 • VO2 of 40 ml•kg-1•min-1 • equals running speed of 205 m•min-1 • Estimated 10,000m running time 10,000m  205 m•min-1 = 48.78 min

  28. Running Economy and LT Results From Incremental Exercise Test

  29. Energy System Contribution to Maximal Exercise

  30. Ultra short-term tests Tests ATP-PC system Examples Margaria power test Stair running Jumping power tests CMJ, squat jump Running power tests Series of 40-yard dashes Cycling power tests 10 s Wingate test Short-term tests Tests anaerobic glycolysis Examples Cycling tests 30 s Wingate test Running tests Sport-specific tests Determination of Maximal Anaerobic Power

  31. The Margaria Power Test

  32. Series of 40-yard Dashes to Test Anaerobic Power

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