Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chapter 12 Measuring in Competitive Sports and Coaching.

Similar presentations


Presentation on theme: "Chapter 12 Measuring in Competitive Sports and Coaching."— Presentation transcript:

1 Chapter 12 Measuring in Competitive Sports and Coaching

2 Impact of Measurement on Sports Equipment requirements for different groups increase a sport’s expense.Equipment requirements for different groups increase a sport’s expense. Rule changes make recordkeeping difficult.Rule changes make recordkeeping difficult. Logistics can be complicated if different equipment has to be available and moved into place as needed.Logistics can be complicated if different equipment has to be available and moved into place as needed.

3 Measurement Challenges in Competitive Sport Training for officiating:Training for officiating: –How can we make sure that judges and officials are valid, reliable, and objective? Discarding scores (highest and lowest)Discarding scores (highest and lowest) Rules and rule changesRules and rule changes Changes to the structure of competitions and to athletesChanges to the structure of competitions and to athletes

4 Your Viewpoint What are examples of measurement issues that you’ve observed in sporting events? Did these issues affect the outcome of a game or event?What are examples of measurement issues that you’ve observed in sporting events? Did these issues affect the outcome of a game or event? What solutions would you recommend to address these issues?What solutions would you recommend to address these issues?

5 Measuring in Coaching, Teaching, and Training Coach: Select the best team possible, adjust strategy for maximum benefit, and teach others to enjoy the game (regardless of outcome).Coach: Select the best team possible, adjust strategy for maximum benefit, and teach others to enjoy the game (regardless of outcome). Teacher: Assess and motivate students.Teacher: Assess and motivate students. Trainers and therapists: Evaluate injuries and capabilities, give athletes exercise prescriptions and motivate them to complete rehab programs, evaluate efficacy of a treatment.Trainers and therapists: Evaluate injuries and capabilities, give athletes exercise prescriptions and motivate them to complete rehab programs, evaluate efficacy of a treatment.

6 Coaches and Measurement Formative and summative evaluations:Formative and summative evaluations: –Formative: Measure and evaluate players during practice and during games. –Summative: Pick the starting team and select award recipients. Quantitative and qualitative measures:Quantitative and qualitative measures: –Quantitative: Scoring, general performance, skill ability –Qualitative: Coachability, leadership, and determination

7 Measuring Recruits— Professional Sport Spend time and effort examining every aspect of a potential investmentSpend time and effort examining every aspect of a potential investment Conduct various tests:Conduct various tests: –Combine: Tryout to determine which prospects to draft –Post-combine performance testing –Tests of specific skills

8 NFL Drafting Test 50-item Wonderlic intelligence test50-item Wonderlic intelligence test Height and weight measurementsHeight and weight measurements 225-lb. bench press225-lb. bench press Standing broad jumpStanding broad jump 40-yard dash40-yard dash Shuttle runShuttle run Vertical jumpVertical jump

9 Measuring Recruits— College Sport Analyze films and reports from high school coachesAnalyze films and reports from high school coaches Test students at football summer campTest students at football summer camp Consider factors not related to athletic performance:Consider factors not related to athletic performance: –Academics –Attitude –Cooperation/coachability

10 Film Analysis Form for Evaluating a Defensive Team

11 Your Viewpoint Pretend you are a college coach recruiting for a particular sport. What key qualities do you want to see in the athletes you are recruiting?Pretend you are a college coach recruiting for a particular sport. What key qualities do you want to see in the athletes you are recruiting? How would you measure or evaluate those qualities in your recruits?How would you measure or evaluate those qualities in your recruits?

12 Measuring in Athletic Training Modern medical measurements:Modern medical measurements: –Previously, only X-rays –Now, new equipment (CT scans, MRIs), faster laboratory results, and an abundance of data –Technology offers new treatment modalities (continued)

13 Measuring in Athletic Training (continued) Using standard scores:Using standard scores: –Comparison to a norm (e.g., other athletes) or to some criterion (e.g., an uninvolved body part) Assessing hydration status:Assessing hydration status: –Challenge to trainers –A rapid change in body weight—only practical method for measuring Assessing potential for heat injuriesAssessing potential for heat injuries

14 Assessing Potential for Heat Injuries Dry bulb temperatureDry bulb temperature Wet bulb temperatureWet bulb temperature Globe temperatureGlobe temperature Wet bulb globe temperature (WBGT):Wet bulb globe temperature (WBGT): –Weighted average of the other temperatures

15 Calculating WBGT WGBT = 0.7 * wet bulb temperature + 0.2 * dry bulb temperature + 0.1 * globe temperatureWGBT = 0.7 * wet bulb temperature + 0.2 * dry bulb temperature + 0.1 * globe temperature If a wet bulb reading is 30º C, dry bulb is 35º C, and globe reading is 38º C:If a wet bulb reading is 30º C, dry bulb is 35º C, and globe reading is 38º C: (30 * 0.7) + (35 * 0.2) + (38 * 0.1) = 21 + 7 + 3.8 = 31.8º C

16 Calculating a Wet Bulb Globe Temperature

17 Significance of Three Weighted Measurements “Hotness” of a day:“Hotness” of a day: –Combination of air temperature, humidity, and wind –WBGT reflects all three factors Wet bulb temperature (body’s heat loss through sweat evaporation) is most important; makes up 70% of WBGT.Wet bulb temperature (body’s heat loss through sweat evaporation) is most important; makes up 70% of WBGT.

18 Wet Bulb Globe Temperature— Risk for Running

19 WBGT and Various Athletes Football players:Football players: –Need to make an adjustment to the measured WBGT to account for heavy clothing and equipment. Young athletes:Young athletes: –Be alert for heat-related symptoms, offer rest periods and plenty of fluids. –WGBT at or above 85º F or 29.4 º C: All outdoor athletic activities should be prohibited.

20 Measuring in Hunting and Fishing Fish:Fish: –Measure weight or length Big game animals:Big game animals: –Measure body weight and points – –www.boone-crockett.orgwww.boone-crockett.org

21 Measuring Multisport Competitions Biathlons and triathlonsBiathlons and triathlons Perhaps the greatest measurement challenge in sports:Perhaps the greatest measurement challenge in sports: –Course set-ups affect which group of athletes will be favored; e.g., longer swim vs. longer run portion –Comparison of times difficult among events on different courses

22 Advances in Sport Measurement Instant replayInstant replay Electronic timingElectronic timing VideographyVideography Biomechanical analysisBiomechanical analysis Biomechanical measurementsBiomechanical measurements

23 Testing for Illicit Substances Alcohol testing:Alcohol testing: –Field performance tests, breathalyzers, blood alcohol tests Drug testing:Drug testing: –Blood samples, urinalysis, hair samples, saliva

24 Illicit Substances Used by Athletes and Employees NCAA’s list of banned drugs:NCAA’s list of banned drugs: http://www.ncaa.org/wps/ ncaa?ContentID=283 Substances commonly tested for in employment drug tests:Substances commonly tested for in employment drug tests: –Alcohol –Marijuana –Cocaine –Amphetamines –Opiates –PCP –GHB

25 Possible Outcomes of Drug Tests Valid and desirable:Valid and desirable: –True positive –True negative Not desirable:Not desirable: –False positive –False negative Sensitivity: Probability of a positive test among people with a condition.Sensitivity: Probability of a positive test among people with a condition. Specificity: Probability of a negative test among those who do not have the condition.Specificity: Probability of a negative test among those who do not have the condition.


Download ppt "Chapter 12 Measuring in Competitive Sports and Coaching."

Similar presentations


Ads by Google