Solved: To determine which muscles need to be subjected to
Chapter 14, Problem 14.5(choose chapter or problem)
To determine which muscles need to be subjected to a conditioning program in order to improve one’s performance on the flat serve used in tennis, a study was conducted by the Department of Health, Physical Education and Recreation at Virginia Tech.
Five different muscles
1: anterior deltoid 4: middle deltoid
2: pectorial major 5: triceps
3: posterior deltoid
were tested on each of 3 subjects, and the experiment was carried out 3 times for each treatment combination. The electromyographic data, recorded during the serve, are presented here.
Use a 0.01 level of significance to test the hypothesis that
(a) different subjects have equal electromyographic measurements;
(b) different muscles have no effect on electromyographic measurements;
(c) subjects and types of muscle do not interact.
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