Kinesiology Commons^™

Effects Of Calcium Pyruvate Supplementation During Training On Body Composition, Exercise Capacity, And Metabolic Responses To Exercise, Pauline K. Koh-Banerjee, Maria Pontes Ferreira, Mike Greenwood, Rodney G. Bowden, Patty N. Cowan, A. L. Almada, Richard B. Kreider

Nutrition and Food Science Faculty Research Publications

Objective: We evaluated the effects of calcium pyruvate supplementation during training on body composition and metabolic responses to exercise.

Method: Twenty-three untrained females were matched and assigned to ingest in a double blind and randomized manner either 5 g of calcium pyruvate (PYR) or a placebo (PL) twice daily for 30 d while participating in a supervised exercise program. Prior to and following supplementation, subjects had body composition determined via hydrodensiometry; performed a maximal cardiopulmonary exercise test; and performed a 45-min walk test at 70% of pre-training VO₂ max in which fasting pre- and post exercise blood samples determined. …

Student Physical Activity Patterns: Grade, Gender, And Activity Influences, Pamela Hodges Kulinna, Jeffrey J. Martin, Qin Lai, Amy Kliber, Brett Reed

Kinesiology, Health and Sport Studies

The purpose of this study was to determine how physical education students' cardiovascular responses as determined by mean heart rate, standard deviation of heart rate, and percentage of time in target heart rate zone varied according to student characteristics. Participants were 505 students in Grades 3 through 12. The Polar Accurex Plus heart rate telemetry system was used to measure the physiological load on the cardiovascular system. Three-way ANOVA results suggested that heart rate patterns in physical education varied according to gender, grade, and activity. For example, secondary school girls were more active in individual activities while secondary school boys …

The Development Of A Physical Education Teachers' Physical Activity Self-Efficacy Instrument, Jeffrey J. Martin, Pamela Hodges Kulinna

Kinesiology, Health and Sport Studies

In the present investigation a questionnaire was developed to assess physical education teachers' self-efficacy for teaching classes in which their students were engaged in high levels of physical activity (i.e., at least 50% of class time). Exploratory and confirmatory factor analyses resulted in the development of a 16-item, 4-factor, multidimensional physical education teachers' physical activity self-efficacy scale (PETPAS) that produced reliable and valid scores. The Student factor reflected teachers' efficacy for managing students who didn't enjoy or value physical activity. The Time factor was indicative of teachers' efficacy when they didn't have enough time to teach. The Space factor reflected …

Training And Performance Self-Efficacy, Affect, And Performance In Wheelchair Road Racers, Jeffrey J. Martin

Kinesiology, Health and Sport Studies

In the current study, social cognitive theory was examined with athletes with disabilities. More specifically, hierarchical and self-regulatory performance self-efficacy, self-regulatory training self-efficacy, outcome confidence, and affect were examined with wheelchair road racers (N = 51). In accordance with social cognitive theory, moderate to strong significant relationships among 3 types of self-efficacy and outcome confidence were found (rs = .41 - .78). All forms of self-efficacy and positive affect (rs = .39 - .56) were also related providing additional support to social cognitive theory and the important relationships among training and performance related efficacy and affect in …

Determinants Of Teachers' Intentions To Teach Physically Active Physical Education Classes, Jeffrey J. Martin, Pamela Hodges Kulinna, Robert C. Eklund, Brett Reed

Kinesiology, Health and Sport Studies

The purpose of the present investigation was to examine determinants of teachers' intentions to teach physically active physical education classes (i.e., spend at least 50% of class time with the students engaged in moderate to vigorous physical activity). Based on the theories of reasoned action, planned behavior, and self-efficacy, a model was examined hypothesizing that teachers' intentions were determined by subjective norm, attitude, perceived behavioral control, and self-efficacy. Using hierarchical regression analyses, the theories of reasoned action and planned behavior were supported by accounting for 65% of the variance in intention due to the main effects of attitude and subjective …

Effects Of Calcium Β-Hmb Supplementation During Training On Markers Of Catabolism, Body Composition, Strength And Sprint Performance, Richard B. Kreider, Maria Pontes Ferreira, Michael Greenwood, M. Wilson, Pamela Grindstaff, Steven Plisk, Jeff Reinardy, Edward Cantler, Anthony L. Amalda

Nutrition and Food Science Faculty Research Publications

Calcium β-hydroxy β-methylbutyrate (HMB) supplementation has been reported to reduce catabolism and promote gains in strength and fat free mass in untrained individuals initiating training. However, the effects of HMB supplementation on strength and body composition alterations during training in athletes is less clear. This study examined the effects of 28-d of calcium HMB supplementation during intense training on markers of catabolism, body composition, strength, and sprint performance. In a double-blind and randomized manner, 28 NCAA division I-A football players were matched-paired and assigned to supplement their diet for 28-d during winter resistance/agility training (~8 hr/wk) with a carbohydrate placebo …

Stress And Burnout In Female High School Athletic Directors, Jeffrey J. Martin, Betty Kelley, Candice Dias

Kinesiology, Health and Sport Studies

In the current study we examined the relationships between stress predictors, stress, and burnout in female high school athletic directors (N = 52). Significant negative correlations between stress and hardiness and between stress and number of social support providers were found. Significant positive correlations between stress and time concerns, personnel concerns, and program success (e.g., winning) subscales of the athletic directing issues scale were also found. Subjects high in hardiness and with adequate social support networks, who also reported few athletic directing issues, were likely to report minimal stress. Significant positive correlations also indicated that stress was related to …

Predictors Of Social Physique Anxiety In Adolescent Swimmers With Physical Disabilities, Jeffrey J. Martin

Kinesiology, Health and Sport Studies

The purpose was to examine predictors of social physique anxiety (SPA) in adolescent swimmers with physical disabilities. Participants were 57 swimmers (27 females, 30 males, ages 16-19, M = 16.2) with various physical disabilities. A three-way ANOVA revealed significant differences in SPA between countries and among disabilities but not gender. Stepwise multiple regression results indicated that self-esteem and the self-identity subscale of the Athletic Identity Measurement Scale (AIMS) were the best predictors of SPA but that gender, country, and type of disability were not significant.

Predictors Of Social Physique Anxiety In Elite Female Youth Athletes, Jeffrey J. Martin, Hermann J. Engels, John C. Wirth, Kari L. Smith

Kinesiology, Health and Sport Studies

The purpose of this study was to examine predictors of social physique anxiety (SPA). SPA, self-esteem, body-esteem, public body consciousness (PBC) and percent body fat (%BF) were assessed with elite female youth athletes (N = 68) competing in either figure skating, soccer or gymnastics. Stepwise multiple regression analyses, controlling for BF%, accounted for 59% of the variance in SPA. Self-esteem entered first, and BF%, followed by body-esteem and PBC. The psychological variables accounted for 57% of the variance with self-esteem contributing the most (R square change = 45%). Contrary to previous research, BF% did not significantly contribute to SPA. …

Competitive Orientations And Motives Of Adult Sport And Exercise Participants, Diane L. Gill, Lavon Williams, Deborah A. Dowd, Christina M. Beaudoin, Jeffrey J. Martin

Kinesiology, Health and Sport Studies

Participants in four different adult sport and exercise programs (running club, exercise classes, cardiac rehabilitation program, senior games) completed measures of competitive orientation and participation motivation. Our samples were older and more diverse than samples of previous research, and their competitive orientations and motives were similarly diverse. Multivariate analyses revealed gender and sample differences. Males were higher than females on competitiveness and win orientation, and runners were less win-oriented than other groups, but overall, all groups were similar to previous college-age samples in competitive orientation. Groups varied on specific motives, with females rating fitness, flexibility, affiliation, and appearance higher than …