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advancedracingcomputers.com richard@advancedracingcomputers. com 1 Athlete Response to Using a Real-Time Optical Navigation Feedback System Richard Kirby
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Transcript of Advancedracingcomputers.com [email protected] 1 Athlete Response to Using a...
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Athlete Response to Using a Real-Time Optical Navigation Feedback
System
Richard Kirby
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Today, athletes in many sports benefit from real-time quantitative feedback about their performance during training and racing
Feedback is critical as it is the brain’s link to the body. (Shea et al., 1993)
Quantitative feedback in alpine skiing generally comes well after the performance
Technique improvement often comes through video analysis that is qualitative and comes hours after the training
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Verify if alpine ski racers perceive a benefit from using real time audio feedback related to lateral displacement to improve their carving technique
Evaluate the “distraction” effect of audio feedback while training
Evaluate if the skiers detect a change in the characteristics of their skis due to the apparatus
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One beep per 0.5 mm slip at most sensitive level
Actual delay between slip and feedback 0.125 seconds
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Randomly selected young racers training at Mount Hood as part of summer race camps
Familiarized the racers with the meaning of the feedback
Racers trained 2 hours with device in gates
Racers filled out survey Racers were interviewed for subjective
comments
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12 club level racers (5 years to 15 years racing)
13 – 18 years old except one 43 year old master
Average age 18.9 years old 5 girls, 7 boys 11 out of 12 had never used real time
feedback prior to test
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Skiers must understand what the feedback is telling them
Sensitivity/threshold must be set to the skill level of the skier and snow conditions
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> 70% 30% to 70% < 30%N = 9
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It is like watching a video of yourself while you are skiing
I’ve been racing for 10 years and I didn’t know I slipped that badly at the initiation of my turn
It really helped me understand the issues I have with the timing of my turns
The audio feedback was distracting at first It tells me I’m doing something wrong, but
not what to do to correct it
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While we did not evaluate if performance actually improved, we interviewed several of the coaches who believed that they saw improvements in their skiers after the two hour test
Some skiers adapted to the feedback much quicker than others
Those that were more technologically savvy Those that play computer games
Importance of familiarization process
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Evaluate performance improvement Evaluate different types of feedback and
different familiarization exercises Evaluate the effect of a
coaching program based around using real-time feedback (coaches device)
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Thank you for your attention
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Hard snow Slope gradual enough to carve cleanly all
gates Mixture of GS and SL gates, stubies and
brushes
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Did real time feedback help you better understand your carving skills. 83% definitely 17% probably
Did real time feedback help you improve your carving skills 50% definitely 33% probably 17% not sure
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How often would you like to use real time feedback in training? 11% > 70% of the time 78% 30% to 70% of the time 11% < 30% 3 no-answer
Satisfaction with real time feedback as training tool in gates 58% Very satisfied 33% Somewhat satisfied 8 % Neither satisfied nor dissatisfied
