States

4 Matching Results

Results open in a new window/tab.

The Effects of Relaxation and Imagery on Karate Performance (open access)

The Effects of Relaxation and Imagery on Karate Performance

The present investigation attempted to determine whether imagery combined with relaxation (VMBR) facmlitated karate performance more effectively than either imagery or relaxation alone. Each subject (N=30) was randomly assigned to either a VMBR, relaxation, imagery or placebo control condition. Trait anxiety tests were administered at the beginning and the end of the six week test period. Performance tests were administered at the final class period along with precompetitive state anxiety. Trait anxiety results indicated a reduction in trait anxiety for all groups. State anxiety results indicated that the VIYBR and relaxation groups exhibited less state anxiety than the imagery and control groups. Performance results produced a main effect only for sparring with the VMBR group exhibiting better performance than all other groups.
Date: May 1981
Creator: Seabourne, Thomas G.
System: The UNT Digital Library
The Effects of Counting as a Form of Concurrent Feedback on a Seventy-Five-Yard Dash (open access)

The Effects of Counting as a Form of Concurrent Feedback on a Seventy-Five-Yard Dash

The use of concurrent Information Feedback (IF) through counting seconds verbally as the subject ran a 75 yard dash was tested. Forty-six ten and eleven year old boys and girls (boys = 20, girls = 26) were given two trials under four IF conditions: No IF; Terminal/Concurrent IF; Terminal IF; IF Removal. The counting occurred under Condition 2 and was combined with a final time given at the end of the dash. Significant main effects were found for sex and for conditions, with interaction effects between sex and conditions, and between conditions and trials, p4 .05. Results supported the combined IF condition with counting as maintaining subjects' level of performance, probably through motivation. Males performed well under Conditions 1, 2, and 3, while girls performed best under Conditions 1 and 2. Trial scores under Conditions 2 and 3 for all subjects were much more similar than under Conditions 1 and 4, indicating more consistent performance when IF was provided,
Date: December 1981
Creator: Parks, Jennifer
System: The UNT Digital Library
The Relationship Between Maximal Aerobic Capacity and Left Ventricular Function with Respect to Age (open access)

The Relationship Between Maximal Aerobic Capacity and Left Ventricular Function with Respect to Age

In this study, the relationship between maximal aerobic capacity (VO₂max) and left ventricular function was examined in two distinct age groups. A young group (20 - 30 years of age) and an elderly group (over 60 years of age) were compared. Left ventricular function was examined over wide variations in preload accomplished by 5º head-down tilt (TILT) for ninety minutes and lower body negative pressure (LBNP) to -40 mm Hg. with two-dimensional echocardiography. A greater response to an increase in preload (TILT) was related to high VO₂max levels in the young subjects but not in the elderly groups of subjects, suggesting that lower VO₂max levels of the elderly population affected the mechanism of response to the increased levels of preload. Additionally, in the elderly, greater reductions in ventricular volume reflected increased peripheral pooling due to decreased venous tone and/or increased venous compliance during LBNP and were related to increased VO₂max. In the young, VO₂max does not appear to affect the response to reduced preload.
Date: December 1981
Creator: Page, Kimberly Ann
System: The UNT Digital Library
The Effects of Complexity on Play Equipment Usage of Three-, Four-, and Five-Year-Old Children (open access)

The Effects of Complexity on Play Equipment Usage of Three-, Four-, and Five-Year-Old Children

Fifteen three-, four-, and five-year olds were assessed for the amount of time they spent on, off, under, and touching play equipment in an environment with play events and one without (i.e. the platform condition), An ABAB experimental design was used. Treatments lasted 3 days a week for 4 consecutive weeks, with each age group being videotaped 20 minutes each day, Data collected from the videotapes was applied to a 3 x 4 (age x treatments) ANOVA and revealed at the . 05 level (a) significantly more on and touching in the play event conditions; (b) significantly greater off and under in the platform (non play event) conditions; (c) a significant increase in off behavior from the first to second play event condition; (d) three-year-olds spent more time under and touching, and significantly less time on; and (e) significant interactions for on and under which seemed to be caused by the three-year-olds showing an inordinate amount of under behavior in the second platform condition, These results supported the assumption that play events would cause a significant increase inactive child-equipment interaction.
Date: December 1981
Creator: Fowler, Curt L. (Curt Layne)
System: The UNT Digital Library