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Power of differences

Presentation at the "It`s my game II" conference 2021. About new ways of learning and evidence based coaching in tennis and other sports

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Power of differences

  2. 2. 2 Frercks Hartwig sports science in Freiburg educational science in Tübingen systemic coaching in Stuttgart speaker Ballschule Heidelberg licensee Street Racket
  3. 3. 3 P in g 1)evidence based coaching 2)methodical traditionalism 3)developing skills vs instructing skills 4)explicit vs implicit vs differential learning 5)constraints and differences 6)
  4. 4. 4 Learn to walk
  5. 5. 5
  6. 6. 6 The backward movement begins from the starting position with a slight angle and at the same time withdrawing the elbow against the direction of impact, whereby the forearm is raised parallel to the ground. The upper body rotates to the right, shifting the body weight onto the left foot, while the club is guided backwards in a flat upper arc in a loop. The club is swung down in a small arc and then swung parallel to the hip axis with increasing acceleration relatively flat forward upwards towards the incoming ball. The optimal point of contact is in front of the left hip ... Only shortly before the point of contact and especially after it does it follow the arm movement and turn into the frontal position, which enables the arm to swing the club for a long time in the direction of impact when pulling through. Then the racket is swung naturally to the left shoulder " (DTB 1975)
  7. 7. 7
  8. 8. 8 "Characteristics of the main action within the striking phase: The club is swung forwards, slightly upwards, so that the ball gets a little forward spin. The racket is accelerated to achieve the desired ball speed. The club is swung far in the direction of the shot for greater accuracy and safety. The ball is hit at a suitable lateral distance and in front of the body with a vertical striking surface in order to achieve optimal energy transfer. Immediately before the meeting, the wrist is brought into a position corresponding to the take-off speed in order to achieve the highest possible accuracy. At the meeting point, the grip is strengthened and the wrist is fixed very briefly ... " (DTB 1995)
  9. 9. 9 “While the more play- and action-oriented reform concepts dominated in school sports and universities, the technique orientation continued to prevail in the methodological practice of the associations and clubs. And not only in tennis, but also in the other racket or return games, as the curricula of that time show. " DTB 2020
  10. 10. 10 Methodical traditionalism and myths
  11. 11. 11 queing
  12. 12. 12 Problems
  13. 13. 13 "When someone has a hammer in his hand, then every problem looks like a nail. " (Paul Watzlawick, cyberneticist and communication researcher)
  14. 14. 14
  15. 15. 16 “Don't let rigorous tennis instructor rules influence you. Rather discover your individual skills, experiment around. I've broken almost every textbook rule for the past 30 years! " (Björn Borg, Wimbledon winner)
  16. 16. 17 "If you think badly of yourself, anticipates own failure, gets into stress and actually fails! " (Manfred Spitzer, neuroscientist)
  17. 17. 18 Internal focus External focus
  18. 18. 19 Inattentional Blindness
  19. 19. 20 environment partners weather place balls spectateurs emotions ●..... Nothing is the same
  20. 20. 21 „Once the ball is in motion, it comes at you in an infinite number of angles and speeds; sometimes with more topspin or backspin, sometimes flatter, sometimes higher. The difference may be small, microscopic, but the variations that your body makes - shoulders, elbows, wrists, hips, ankles, knees - are exactly the same in every stroke. "(Rafael Nadal)
  21. 21. 22 solutions
  22. 22. 23 The Inner Game of Tennis Timothy Gallwey 1974
  23. 23. 24
  24. 24. 25 Learning to walk
  25. 25. 26 “You can think about why children learn the fastest and most in the first two years of life, even though you don't listen to the parents and also receive“ little ”instructions from them. Maybe you just have to replace the 'although' with 'because'. " (Wolfgang Schöllhorn)
  26. 26. 27
  27. 27. 28 „Only by doing can the motoric possible solutions for the given movement tasks be developed. The intention to consciously control the sequence of movements seems to disrupt rather than promote the learning process.“ (Gabriele Wulf)1998)
  28. 28. 29 “Responsibility for learning and autonomy in learning are passed on to the learners. "
  29. 29. 30 Quelle: Sportunterricht 58/2009
  30. 30. 31 Differential Learning
  31. 31. 32 Differential Learning Variation -motion geometry -speed of movement -rhythm of movement -playground conditions for the execution of movements
  32. 32. 33 “The magic words are variability and flexibility. The more different demands we face in training and competition, the more we learn. This is crucial for motor and cognitive learning" Daniel Memmert, Professor at the Sports Institute for Training Science and Sports Informatics, Cologne
  33. 33. 34 “By now every learning psychologist knows that stubborn repetition of one and the same sequence of movements doesn't really get you any further. In basketball there were two test groups: one threw 5000 times from the same spot, the other 5000 times from a slightly different position. And now guess which group has demonstrably improved by 20 to 30 percent? We think less of repetitive learning of the same situation over and over again. " Ralf Rangnick, soccer coach
  34. 34. 35 goals field boundaries rules partners/opponents equipment (nets, rackets, balls, ...) time information emotion variations, constraints
  35. 35. 36 Developing service technique
  36. 36. 37 stop and go 1 stop and go 2 stop and go 3 stop and go 4 Gewicht in der linken Hand
  37. 37. 38 “Let the drill do the talking and the athlete do the walking”
  38. 38. 39
  39. 39. 40 More fun More resistant to stress More sustainable More effective More stable Motivating
  40. 40. 41 „...there is no right way to do a wrong thing.“ Bain/McGown, US-Volleyball-Coaches
  41. 41. 42 facebook: Inner Coaching im Sport twitter: IC_Blog „Everything that makes a difference makes a difference“