This study analyzed an individual's ability to perceive levels of exertion of an isometric contraction. Two samples of college students were tested under magnitude production or magnitude estimation. A significant F was obtained for the magnitude production condition. An insignificant F was obtained for the magnitude estimation condition. This study concludes that subjects tested under magnitude production will perceive the 100 percent level with the least amount of error and that error will increase as the percentages descend from the 100 percent level. Subjects tested under magnitude estimation will be equally in error when perceiving percentages of a maximum contraction of the forearm flexors.

This investigation is concerned with the problem of determining whether or not a significant difference exists between attitudes of junior high school female athletes and non-athletes toward physical education.

The purposes of this study were (1) to determine if three selected aerobic dance related conditions would result in chronic alterations of flexibility of college women and (2) to compare flexibility measures of college age females during a semester of aerobic dance instruction. Subjects were sixty-three college women enrolled in aerobic dance, bowling, and archery classes. Eight flexibility measures were obtained during the third and eleventh weeks of the experimental period. Data were analyzed by a factor analysis the Pearson Product Moment Correlation, and eight oneway analyses of covariance. Conclusions of the investigation were (1) a program of aerobic dance alone is not sufficient to promote flexibility, and (2) supplemental flexibility activities of ten minutes duration used with aerobic dance training are beneficial in increasing hip flexion.

This study used cinematography to determine differences in velocity, acceleration, moments of force, and body centers of gravity in four different positions of two techniques of the long-hang kip. Three female gymnasts performed five attempts of each technique: the traditional method, with an arch in the lower back at the end of the forward swing, and approximate shoulder angle of 180 degrees or more; and the newer method, with no arch in the lower back and approximate shoulder angle of 90 degrees or less. Three. USGF-rated judges scored the kips, and due to inability to distinguish between the two techniques, two subjects were eliminated. Major differences occurred in the swing extension, with the newer technique producing more velocity and a higher center of gravity throughout the movement.

This study was designed to determine and compare the attitudes toward elementary physical and elementary athletic competition of parents of sixth grade students enrolled in five elementary schools in Arlington, Texas, during the 1970-1971 school year.

"The problem of this study was to determine attitudes toward physical activity expressed by male and female students in the required physical education activity program at North Texas State University during the 1970 spring semester."--4.

The purposes of the study were to compare ratings of perceived exertion of aerobic dance and treadmill performances under equal work loads and to compare ratings of perceived exertion by males and females in aerobic dance and treadmill work. Subjects were twenty-six college men and women in co-educational conditioning classes. Heart rates were monitored after work bouts and perceived exertion was determined using Borg's RPE scale. Data were analyzed by a two-way analysis of variance with repeated measures. Conclusions of the investigation were: (1) aerobic dance is perceived as less strenuous than the treadmill under equal work loads, and (2) males and females perceive aerobic dance as less strenuous than the treadmill under equal energy bouts.

The purpose of the study was to investigate the differences and relationships in male and female coaches assessment of coachability traits. Subjects were twenty-five male and twenty-five female coaches, The testing included a paired comparison of ten coachability traits, Data were analyzed by a Pearson product-moment coefficient of correlation and analysis of variance. The conclusion of this study was that the two groups of subjects are very similar in the selection of coachability traits.

The purposes of the study were (1) to determine if differences exist between the self concepts of female intercollegiate starting and substitute athletes and between members of team and individual sports and (2) to determine if a significant relationship exists between coaches' ratings of an athlete and the athletes' self concepts. Subjects were forty-five college women who met the established criteria. The testing instrument was the Tennessee Self Concept Scale. Data were analyzed by the two-way analysis of variance method and the Spearman Rank Order Correlation. Alpha was .05. Conclusions of the investigation were that (1) the self concepts of athletes in basketball, softball, volleyball, tennis, and badminton are not significantly different, and (2) the coaches' ratings of athletes and athletes' self concept ratings are not significantly related.

Two different weight training programs were compared to determine which was most effective in improving strength. The experiment was conducted with the bench press, leg press, and sitting press for a period of fifteen weeks.

"The purpose of this study is to investigate the priority of objectives of physical education as determined by various groups of people involved in the physical education program at north Texas State University,"--[1].

This study was designed to determine if differences exist between the personalities of injured and non-injured athletes, injured and non-injured athletes in individual sports, and injured and non-injured athletes in team sports. Subjects were forty-three female athletes selected from six intercollegiate teams. The test instrument was the Cattell Sixteen Personality Factor Questionnaire. Data were analyzed by the two-way analysis of variance. Alpha was .05. Conclusions of the investigation were that the personality of injured athletes does not differ from the personality of non-injured athletes, that non-injured athletes in individual sports are more self-assured than non-injured athletes in team sports, and that the personality of athletes in team sports does not differ from the personality of athletes in individual sports.

This study compares the effectiveness of three selected exercises (curl-up, conventional hook sit-up and modified hook sit-up) in building abdominal strength and endurance in upper elementary school girls. Ninety-nine subjects were randomly divided into four groups. The study was designed to determine (1) whether an eight week exercise program can increase abdominal strength and endurance; (2) the most effective exercise; (3) if muscle action intensity affects the results. A cable tensiometer measured abdominal strength and a timed sit-up measured abdominal endurance. An analysis of covariance determined significance. Significant gains in abdominal strength and endurance were shown by the conventional hook sit-up. Further study on the relationship between muscle development and maturation in young children is recommended.

The performance of Uneven Parallel Bar skills by junior high girls is hindered by blister formation on the hands. The problem was to investigate certain measures relative to their value in blister prevention.

"The purpose of this study are (1) to identify some of the factors involved in this perceptual ability, (2) to devise a test to measure these factors, and (3) to determine if this test has any predictive validity."--4.

The problem of this study was to obtain the professional opinion of male physical education graduates of North Texas State University with respect to appropriateness of their professional preparation in association with their teaching experiences. An opinionated questionnaire was developed and used to collect the data. Standard and Advanced First Aid and Safety Education, Teaching Physical Education in Secondary Schools and Foundations of Health were the required courses found to be most valuable to the participants in their teaching experiences. Basketball, track and field, football and volleyball were the activities most often used by the participants in their teaching activities.

This study of the relationship between dynamic balance and rhythm tests the hypothesis that a positive relationship exists between these two factors. One hundred fifty-two fifth- and sixth-graders were given the Nelson Balance Test and an adaptation of Ashton's Practical Rhythm Test. The Pearson product-moment coefficient of correlation was used in the analysis of the data. The reliability of the tests was very low. The relationship between dynamic balance and rhythm was . 08, an unreliable correlation from which no conclusions could be drawn. It was recommended that improved methods of measuring dynamic balance and rhythm be developed for elementary pupils.

The purpose of the study was to examine changes in cardiovascular function and neuromuscular performance of primary grade girls after a six-week treatment program. The Kraus-Weber Tests and modified Harvard Step Test were administered to sixty-seven subjects before and after the treatment program, which consisted of exercises and running for the experimental group and sedentary games for the control group. None of the significant differences in recovery heart rate or the Kraus-Weber tests could be attributed to the treatment program. The length of training program was apparently not enough to detect change in fitness level of the subjects. A need exists for exercise tests that are more meaningful and more easily administered.

The purpose of this study was to determine the effects of an eight-week weight training program upon leg strength and running speed of middle-school-age boys.

This study was undertaken to determine the effect of protein and wheat germ oil supplements upon selected measures of junior high school boys. The measures selected were for weight, arm strength, speed and endurance, and urinalyses for urea nitrogen. Thirty-six ninth grade athletes at Memorial Junior High School in Alice, Texas, were used as subjects. The subjects were placed in three groups of twelve each with one group receiving the supplements and the other two groups serving as control groups.

This study investigated the effects of four different types of mental practice (free imagery, directed visual, directed reading, and directed audio) on the performance of 45 beginning and 40 intermediate college bowlers. The groups bowled six games with two sets of five minutes of mental practice prior to the first frame and the sixth frame of each game. Data were analyzed by a two-way analysis of variance with repeated measures. No significant differences existed between treatment groups at either the beginning or intermediate levels. Conclusions were that no one technique of mental practice was more effective than another in increasing bowling performance.

This study investigated possible effects of hypoxic training upon speed of high school sprint freestyle. Thirty-eight subjects, grouped as their two schools, performed identical loads during the ten-week program. The Experimental group used hypoxic techniques for about one-half of each workout. Pretests and posttests conducted for the 50-yard and 100-yard distances yielded highly correlated mean scores, with marked differences between the two groups. Analysis of covariance was used, selecting the .05 level for rejection. The comparison of adjusted group means indicated neither group superior at 50 yards, while the 100-yard F-ratio was significant at the .0047 level favoring hypoxic training. It is recommended that hypoxic techniques be incorporated into existing programs, possibly benefitting other strokes.

The purpose of this study was to determine the effects of rapid weight loss on wrestlers' efficiency incorporating competitive aspects of the sport into the research procedures. Six subjects were selected from the North Texas State University Wrestling Club. Eight cardiovascular and neuromuscular measurements were taken and recorded before treatment and following treatment. Astrand's bicycle ergometer test was utilized to obtain exhaustive, heart rates. Data were analyzed by a one-tailed t test at the .05 level. Conclusion of the investigation was that following 6.25 per cent rapid loss of body weight, over a period of one week, no loss of efficiency occurred among wrestlers under simulated competitive conditions.

The purpose of the investigation was to determine the effect of the tonic neck posture upon fatigue induced by exhaustive exercise of the knee extensor muscles of college women. The subjects were college females enrolled in physical education activity classes at North Texas State University. The F ratio was used to determine significance of the difference in fatigue measures in the three head positions. The results of the present investigation revealed no statistically significant difference between the three head positions with respect to their influence on endurance of the leg extensors. Conclusions were that the tonic neck reflex does not facilitate or inhibit leg extensor endurance.