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Kinesiology Asking Questions, Getting Answers: The Scientific Method. The Scientific Method: The Steps. Making Observations. Kinesiology is the academic discipline which involves the study of physical activity and its impact on health, human performance, society, and quality of life.
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KinesiologyAsking Questions, Getting Answers:The Scientific Method
Making Observations Kinesiology is the academic discipline which involves the study of physical activity and itsimpact on health, human performance, society, and quality of life.
Making Observations • Adopting a crouched position when cycling allows me to complete a 30 mile ride faster (Biomechanics) • I have heard that if I take certain supplements I will recover from a bout of physical activity faster (Physiology) • When I’m stressed my performance suffers (Psychology) • My child seems to be a lot more clumsy than he used to be (Development) • My friend has far fewer lapses of memory than me (Fitness and Health)
Asking a Question: Defining the Problem When I take certain supplements I recover from a bout of physical activity faster • What supplements? Creatine • When are they taken? Before, during, or after? Before • What sort of physical activity? High intensity but for a short time Will taking a month-long regime of creatine help with recovery from repeated bouts of short duration, high intensity physical activity?
Forming the hypothesis: Anticipating Outcomes The “Null” Hypothesis A statement of no difference
Forming the NULL Hypothesis: Taking a month-long regime of creatinewill have no impact on recovery from repeated bouts of short duration, high intensity physical activity?
Forming the hypothesis: Anticipating Outcomes #1 Experimental Hypothesis: Non Directional Statement of difference(s) #2 Experimental Hypothesis: Directional Statement of specific difference(s)
Forming Experimental Hypotheses: Taking a month-long regime of creatinewill influence recovery from repeated bouts of short duration, high intensity physical activity? Taking a month-long regime of creatinewill shorten recovery from repeated bouts of short duration, high intensity physical activity?
Conducting an Experiment: Getting the Answers Will taking a month-long regime of creatinehelp with recovery from repeated bouts of short duration, high intensity physical activity? • Independent Variable: Creatine or No Creatine • Dependent Variable: Estimate of Recovery
Organizing the Data: Descriptive Statistics #1 Organize or Sort Categorize, Rank, etc #2 Estimate central tendency Mean, Median, Mode #3 Estimate variability Range, Variance, Standard Deviation
Organizing the Data: Descriptive Statistics #1 Correlation relationships or associations #2 Regression prediction #3 T-tests and/or ANOVA Tests of difference
Communicating Findings #1 Journal Article #2 Verbal Presentation #3 Posters
Ways these findings may be used ? #1Impetus for research #2Basis for rehabilitation protocols #3Background for equipment design #4 Rationale for Policy Change