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Published byGabriella Short Modified over 9 years ago
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Hand Force Analysis to Optimize Swimming Technique Rod Havriluk, Ph.D. Swimming Technology Research
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Hand Force Analysis Method Examples & Model Development Learning Strategies Force Variations Model
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Model is Based on Science Faster Skill Development Avoid Injury Benefits for Coach
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Hand Force Analysis Previous Research Principles of Physics Source for Information
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Aquanex Test Preparation
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Underwater Camera
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Test Procedure
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Immediate Feedback
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Breaststroke Pull
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Hand Force Variations Human Model
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Force and Velocity
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Butterfly Pull
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MONA Butterfly
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Backstroke Push
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MONA Backstroke
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Breaststroke Outward Scull
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MONA Breaststroke
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Freestyle Push
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MONA Freestyle
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Modél Optimál Natación Biomechanical Model Minimum Resistance Maximum Propulsion Maximum Stroke Length Maximum Stroke Rate Minimum Shoulder Stress MONA
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Shoulder Anatomy
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Shoulder Stress
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More Shoulder Stress
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Maximum Shoulder Stress
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Minimal Force
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Force Increase
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Time0 sec.35 sec.82 sec Event Hand Force Generation Begins Hands Submerge Below Shoulders Hand Force Generation Ends Proportion of Stroke Cycle 0%43%100% Wasted 43% of Stroke Cycle Becker & Havriluk, 2010
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Effective Arm Entry
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Ineffective Arm Entry
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Time of Exposure
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Effective Arm Entry
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Physiology - Quality vs Quantity Anatomy - Injury potential Skill-learning - Reinforce limitations Progress Issues
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Traditional Deliberate Type of Practice
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Streamline
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Streamline Cues 1.One hand on top of the other 2.Elbows locked 3.Upper arms squeezing ears 4.Vision directed at bottom of pool directly beneath head 5.Legs straight 6.Toes pointed 7.Feet together
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Deliberate Practice Effect Jefferies, et al 2012
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Practice Effect
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Deliberate Practice Clear instructions Appropriate task difficulty Sufficient number of repetitions Immediate feedback Individualized supervision Variety of learning strategies Stay in cognitive and associative stages Replicate superior performance
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Hand Force Analysis Method Examples & Model Development Learning Strategies Summary
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swimmingtechnology.com Thank you. Questions?
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