Brigham, Robert J.||Kahler, Robert
M.S. (Master of Science)
Department of Physical Education
Purpose. It was the purpose of this study to aid in their coaches in their choices of cadence signals and to add to the literature already available on the subject of rhythmical and non-rhythmical auditory cadence signals on the charging time of the offensive lineman in football. Procedure. The twenty-eight subjects selected for the investigation were male college students between the ages of nineteen and twenty-five. All of the subjects were majors and minors in Northern Illinois University's physical education classes. The author paired the subjects on the basis of a preliminary test measuring each subject's combined hand movement and reaction time. The subjects were ranked from high to low, with the two highest measures being assigned randomly to one of two groups. This procedure was followed until all twenty-eight subjects had been matched and assigned to a group. Each group of fourteen subjects was given two days of instruction. The first day both groups were given instruction simultaneously as to the proper stance taken by the offensive lineman. The second period of instruction was divided into two periods of thirty minutes. Group I was instructed during the first thirty minutes. During this time the rhythmical and non-rhythmical cadence signals were used to start the subjects from their offensive lineman's stances. Group II was given the same instruction, but the sequence was reversed. In the final test administered to the subjects a football was placed at a certain point and left there. The subject then lined up as close to the ball as possible without being offside. Attached half way up a blocking dummy and exactly eighteen inches away was an impact switch. As the quarterback called the predetermined starting number the lineman made contact with the impact switch and the timer was stopped. Thus the charging time was measured when the quarterback use both rhythmical and non-rhythmical cadence signals. Findings and Conclusions. The findings of this investigation indicated that there was a significant difference between the two types of cadence signals used and that this difference was not due to chance arising from the random assignment of subjects to groups and groups to treatments. The rhythmical cadence signal was found to render a faster charging time by the offensive lineman than the non-rhythmical cadence signal. The findings also showed that the hypothesis, that homogenity of variance exists, was tenable. The author concluded from the findings of the investigation that coaches desiring the fastest charging time by the offensive lineman should utilize rhythmical cadence signals in preference to non-rhythmical cadence signals.
Henigan, Michael John, "The effects of rhythmical and non-cadance signals on the time of the offensive football charge" (1965). Graduate Research Theses & Dissertations. 5696.
vii, 33 pages
Northern Illinois University
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