1 / 22

Fluid

Fluid. Air or water Will flow around an object Object moving through a fluid affected by Mass of fluid Buoyancy of object Drag. Air and Water. Affected by Atmospheric pressure Temperature Contents of fluid As fluid density  friction . Drag. Surface

arlene
Download Presentation

Fluid

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fluid • Air or water • Will flow around an object • Object moving through a fluid affected by • Mass of fluid • Buoyancy of object • Drag

  2. Air and Water Affected by • Atmospheric pressure • Temperature • Contents of fluid As fluid density  friction 

  3. Drag • Surface • Motion + roughness + surface area + fluid viscosity • Form • Shape of object • Wave •  as V

  4. Movement Sequences • Performance improvement/Sequential development • Example (Triple Jump) • Walk • Run • Hop • Skip • Hop-Step-Jump

  5. Body Awareness • Dimensions and potentials • Current orientation • Location • Position • Possible range of motion • Sense of balance • Ability to transfer weight for best performance • Relationship and movement with people and/or objects • Match/Contrast • Lead/follow • Around/over/under/through

  6. Types of Movement • Locomotor • Non-locomotor • Twist, turn, stretch • Manipulative

  7. Skill Related Fitness • Agility • Balance • Coordination • Power • Reaction time • Speed

  8. Errors in Skill Performance • Skill has several components • Determining poor performance may be difficult • Breakdown and measure attributes one characteristic at a time • Observe mechanics during skill performance • Use process assessment • Subjective observational approach • Identify errors in form, style or mechanics

  9. Objective Measurement of Fundamental Skills • Product assessment • Quantitative measures of a movement’s overall performance objective • How high, far, fast, many • Diagnose weaknesses to correct errors • Achievement levels • Biomechanical instructional objectives • Analyze based on • Score (golf handicap, bowling average) • Accuracy (archery)

  10. Analyzing Skills • Determine objectives • Note special characteristics • Study elite performance • Divide skill into phases • Divide phases into objectives • Understand mechanical reasons

  11. Special Characteristics • Repetitive/non-repetitive/ continuous • Environment • Predictable • Unpredictable

  12. Skill Phases • Set up • Wind up/back swing • Force producing movements • Follow through/recovery

  13. Observe Complete Skill • Ensure safety • Setting/positioning • Observe performance of skill • Normal speed • Competitive conditions • Look for other cues

  14. Analyze Each Phase • Observe result and work back • Overall performance objective • Observe each phase in sequence Use Knowledge of Sport Mechanics • Stability • Muscles in sequence • Force and power • Torque and rotation

  15. Select Errors to be Corrected • Major  minor Appropriate Methods for Error Correction • Use spotters • Simple  complex • Steps in error correction • Phase that contains error • Element that contains error • Re-teach element • Perform slowly • Increase to competitive speed

More Related