Lab%20Manual%20-%20Fall%202010 - HK 490 MOTOR FUNCTION IN...

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HK 490 MOTOR FUNCTION IN OLDER ADULTS HOW TO WRITE A LAB REPORT I. Introduction A. Purpose Material presented in classroom lectures provides information about basic concepts and theories in Motor Control and Aging. The laboratory experiments afford the opportunity to test these basic concepts and develop new ideas about applications of the theories of Motor Control and Aging. You'll also become familiar with equipment used in the laboratory and how this equipment is used to study neuromuscular physiology, electromyography, balance, coordination and other measures of human motor control and development. B. Care of Laboratory Equipment Your laboratory instructor will demonstrate proper use of the equipment for each laboratory experiment. Since several classes have to use the same equipment, please do not use the apparatus for any purpose other than that for which it was designed. Proper use of the equipment will help ensure the collection of accurate data from which valid conclusions can be reached. II. Analysis of Experimental Data A. Introduction to Data Analysis Data analysis can be an extremely sophisticated step in the research process. Since most of you haven't had many courses in which you've been required to describe the results of experiments, or courses in applied statistics, the data analysis techniques to be used in this class will be fairly simple, sufficient to describe the results of an experiment. It is important to bear in mind that you often will not be told what kind of data analysis to perform. It is up to you to consider what kind of statistics should be computed and what kind of graphs, charts, or tables to include in your report. The following sections will provide an introduction to data analysis. Feel free to include any methods which you have used in previous courses, consult with your laboratory instructor about the appropriateness of a particular graph or statistics, or talk to other students about how the data should be handled (as long as you don't copy someone else's results). B. Graphs, charts and tables Quite often the results of a laboratory experiment can be represented in graphical form. These graphs or tables can be an excellent way of describing the data and can help the reader of the laboratory report understand what happened. Some brief examples of the use of graphs or tables follow. 1
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Reaction Time Vs. Body Weight 55 60 65 70 75 80 85 90 75 100 125 150 175 200 225 250 275 300 Reaction Time (ms) Body Weight (Kg) Males Females Examples Example 1. An experiment was conducted to determine body weight, grip strength and reaction time in college males and females. The results are described in the graphs and tables below: Reaction Time Vs. Body Weight Reaction Time (msec) Grip Strength (kg) Body Weight (kg) Males 216 42 79 Females 218 36 65 Here a graph was drawn showing the relationship between body weight and reaction time, showing that for this fictitious data there was little relationship or little correlation
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Lab%20Manual%20-%20Fall%202010 - HK 490 MOTOR FUNCTION IN...

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