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  Partner: UNT Libraries
 Decade: 2010-2019
 Language: English
 Degree Discipline: Kinesiology
 Collection: UNT Theses and Dissertations
The Acute Hormonal Response to the Kettlebell Swing Exercise

The Acute Hormonal Response to the Kettlebell Swing Exercise

Date: December 2013
Creator: Budnar Jr., Ronald Gene
Description: The purpose of this investigation was to examine the acute hormonal response to a bout of kettlebell swing exercise. Ten healthy men (19-30 y, 23.6 ± 3.5 y, 174.6 ± 5.7 cm, 78.7 ± 9.9 kg) who were engaged in resistance training at least twice per week but were inexperienced with kettlebell swings participated in this study. Participants were familiarized with the kettlebell swing exercise during an initial visit. During the subsequent experimental protocol visit, participants performed 12 rounds of 30 seconds of 16-kg kettlebell swings alternated with 30 seconds of rest. Heart rate (HR) and rating of perceived exertion (RPE) were measured at the end of every round of swings. Fasted blood samples were collected pre-exercise (PRE), immediately post (IP), 15 minutes post (P15), and 30 minutes post exercise (P30) and analyzed for total testosterone (T), growth hormone (GH), cortisol, and lactate concentrations. Participants completed a total of 227 ± 23 swings (average swings per round: 19 ± 2). HR and RPE increased significantly (P < 0.05) throughout the exercise protocol. Lactate concentrations were significantly increased at all post exercise time points compared to PRE. T was significantly increased at IP compared to PRE. GH was significantly increased at ...
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Ecological Analysis of Physical Activity and Health-related Quality of Life in Female College Students.

Ecological Analysis of Physical Activity and Health-related Quality of Life in Female College Students.

Date: December 2011
Creator: Dunn, Jacqueline
Description: Health-related quality of life (HRQOL) is a comprehensive construct including physical and psychosocial health functioning. Despite significant health benefits of regular physical activity (PA), over 40% of female college students do not meet recommended PA guidelines to improve their health. This study investigated the influences of individual, social, and physical environmental factors on students’ PA and HRQOL. Participants were 235 female university students who completed validated surveys assessing their perceptions of PA, HRQOL, and social ecological factors. Three hierarchical regressions revealed individual and physical environmental factors as predictors of PA and HRQOL. These findings indicated health professionals need to consider students’ individual factors and physical environmental factors to promote female students’ PA and HRQOL.
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Effect of Resistance Training on Cytokines in Hiv+ Men with Chemical Dependence

Effect of Resistance Training on Cytokines in Hiv+ Men with Chemical Dependence

Date: May 2012
Creator: Curtis, John Harper
Description: Human immunodeficiency virus (HIV) and substance abuse (drug and/or alcohol) independently impair the immune system; importantly, the combination of HIV infection and substance abuse might produce more than an additive effect on this system. Tumor necrosis factor-alpha (TNF-?) and Interferon gamma (IFN?) are pro-inflammatory cytokines involved in differentiation of Th0 cells into Th1 cells. Interleukin 4 (IL-4) and Interleukin 10 (IL-10) are anti-inflammatory cytokine involved in differentiation of Th0 cells to Th2 cells. Unbalanced Th1 and Th2 cells can lead to immune suppression. Thus, changes in these cytokines could have important implications for people infected with HIV (HIV+). Resistance training can counteract muscle wasting, improve strength, and improve muscle mass. The purpose of this study was to examine the effect of resistance training on resting concentrations of circulating TNF-?, IFN-?, IL-4, and IL-10. Sixteen men (42 ± 11 years, 180.4 ± 9.1 cm, 89.2 ± 20.7 kg) infected with HIV and enrolled in an intensive 60-day in-patient substance addiction/abuse treatment program were recruited shortly after admission to the treatment facility. Participants were assigned to one of two groups using randomization: supervised resistance exercise 3 times per week using a progressive and non-linear periodized program (Exercise) or no exercise training (Non-Exercise) ...
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The Effect of Season Performance on Male and Female Track and Field Athletes’ Self-identity

The Effect of Season Performance on Male and Female Track and Field Athletes’ Self-identity

Date: August 2013
Creator: Bradstreet, Tyler C.
Description: Although the “self” has generally been conceptualized as relatively stable in sport-specific research, events such as deselection, injury, and career termination have been found to negatively affect athletes’ levels of identification with the athlete role. Additionally, there has been limited research regarding competitive failure and its ability to negatively affect athletes’ levels of identification with the athlete role. The purpose of the present investigation was to provide additional evidence regarding the influence poor competitive seasons have on the malleability of athletes’ self-identity. Athletes were followed throughout the course of their season to determine whether athletes who encountered a poor competitive season reported lowered levels of athletic identity. Specifically, male and female NCAA Division I track and field athletes completed pre-indoor, post-indoor, and post-outdoor assessments of athletic identity. Contrary to previous research, the current study’s results indicated no identifiable relationship between male and female athletes’ season performance satisfaction and their level of post-indoor and post-outdoor athletic identity. Thus, the greatest predictor of athletes’ post-season level of athletic identity was their pre-season level of athletic identity, regardless of season performance. Given these results, future research should assess self-esteem as well as other potential coping strategies athletes might use in order to gain ...
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The Effects of a Mental Training Program on Tennis Players’ Service Form and Consistency

The Effects of a Mental Training Program on Tennis Players’ Service Form and Consistency

Date: May 2014
Creator: Lauer, E. Earlynn
Description: The current study investigated whether combining a ten-week imagery training and video modeling intervention would improve the consistency and form of tennis serves, and to determine if differences in intervention effectiveness were based on skill level of the players. Sixty-one high school tennis players (Mage = 15.44, SD = .98) were separated into four groups; a control group and an experimental group which received the mental training program. Univariate analyses of covariance controlling for possible pre-test differences, gender, and years of tennis experience and a chi-squared analysis for responders to treatment showed no significant differences for the experimental group. Thus, the ten-week imagery training and video modeling intervention used in this study appeared to not influence tennis service form and consistency. There is a need for longitudinal studies of mental training techniques to determine whether these practices are effective for athletes of different sports and competitive levels.
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Factors Related to Meeting Physical Activity Guidelines in College Students: a Social Cognitive Perspective

Factors Related to Meeting Physical Activity Guidelines in College Students: a Social Cognitive Perspective

Date: May 2014
Creator: Farren, Gene L.
Description: Engaging in regular physical activity is important for maintaining and improving health. Unfortunately, most college students fail to meet the recommendations for both aerobic and muscle-strengthening physical activity guidelines (PAGs). Psychosocial factors described within the social cognitive theory are related to the acquisition and retention of physical activity behaviors. The purpose of this study was to examine the relations of gender, self-efficacy, outcome expectancies, and social support with college students meeting aerobic, muscle-strengthening and both PAGs. Participants (N = 396) completed online questionnaires assessing their physical activity behaviors, exercise self-efficacy, outcome expectancies, and social support. Self-reported physical activity was classified as meeting / not meeting PAGs. Using gender, exercise self-efficacy, outcome expectancies, and social support as predictors, separate logistic regressions were used to examine their relations with the three PAG classifications. Analyses revealed that being male and level of social support increased the odds of meeting muscle-strengthening PAGs, but students’ level of self-efficacy and outcome expectations increased the odds of meeting all three PAG classifications. These findings indicate that interventions designed to increase self-efficacy and outcome expectancy may be beneficial for increasing college students’ physical activity for meeting the PAGs. Promotion of muscle-strengthening activities targeted at young women is also ...
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Hormonal Response to Free Weight and Machine Weight Resistance Exercise

Hormonal Response to Free Weight and Machine Weight Resistance Exercise

Date: August 2012
Creator: Shaner, Aaron Arthur
Description: No study has examined the effect of exercise modality (free weight vs. machine weight) on the acute hormonal response using similar multi-joint exercises. The purpose of this investigation was to examine the effect of resistance exercise modality on acute hormonal responses by comparing the squat and leg press which are multi-joint, and similar in action and lower-body muscle involvement. Ten resistance trained men (21-31 y, 24.7 ± 2.9 y, 179 ± 7 cm, 84.2 ± 10.5 kg) participated in the study. Sessions 1 and 2 determined the participants’ 1-RM in the squat and leg press. During acute heavy resistance exercise testing visits (AHRET), sessions 3 and 4, participants completed 6 sets of 10 repetitions with an initial intensity of 80% of their 1-RM for the squat and leg press exercises. There was a 2 minute rest period between each set. Blood samples were collected before, immediately after, and 15 and 30 minutes after exercise via intravenous catheter during the AHRET visits and were analyzed for testosterone, cortisol, and growth hormone. Lactate, plasma volume change, heart rates and ratings of perceived exertion were also measured. Total work was calculated for external load only and for external load and the body mass ...
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Identifying the Physical Activity Needs of Outpatients with a Traumatic Brain Injury

Identifying the Physical Activity Needs of Outpatients with a Traumatic Brain Injury

Date: August 2011
Creator: Self, Megan
Description: Traumatic brain injury (TBI) is a significant public health issue due to the incidence, complexity, and cost associated with treatment – emphasizing the need for effective rehabilitation programs. One mode of rehabilitation that has been demonstrated to improve health and reduce healthcare costs is health promotion programs (HPPs) that incorporate physical activity (PA). However, PA is not currently incorporated into the standard of care post-TBI. The purpose of this study was to conduct group interviews among individuals with a TBI undergoing outpatient rehabilitation to determine PA knowledge, attitudes, intentions, and barriers. Results will be used to develop a HPP that focuses on facilitating PA participation as part of the rehabilitation process. Seventeen participants completed a series of group interviews (2-3 people/group) regarding their PA needs. A qualitative research design was adopted and trustworthiness was established through triangulation of data (i.e., theoretical underpinning; multiple researchers and data-coders). A cross-case analysis was completed to identify themes and conceptual patterns. The main themes identified were (1) an inability to differentiate between PA and physical therapy, (2) a limited knowledge of PA health benefits and the relationship to rehabilitation, and (3) an interest in participating in a PA HPP as part of their rehabilitation. ...
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Implementing a Physical Activity Centered Education Program for Individuals with Brain Injury

Implementing a Physical Activity Centered Education Program for Individuals with Brain Injury

Date: May 2012
Creator: Woolsey, Anne-Lorraine T.
Description: Research has shown that health promotion programs (HPP) that incorporate education about physical activity (PA) are one mode of rehabilitation that can improve the health of individuals with disabilities. However, education-based PA curriculum is not included in the rehabilitation program for individuals with a brain injury, indicating a gap in services provided. Consequently, the purpose of this study was to create and deliver a physical activity centered education (PACE) program that supplemented the existing rehabilitation program for brain injury. PACE consists of an 8-week (16 session) program aimed to (1) increase self-efficacy for being physically active of PACE program participants, (2) increase PA stage of change in PACE program participants or the maintenance of adequate level of PA, and (3) improve the rehabilitation outcomes (i.e., abilities, participation, adjustment) of PACE program participants. Based on previous research, it is hypothesized that participation in PACE will result in (1A) increased self-efficacy for PA, (1B) greater self-efficacy for PA than the standard of care group, (2A) increased readiness to be physically active, (2B) greater readiness to change their PA behavior than the standard of care group, (3A) improved rehabilitation outcomes, and (3B) greater rehabilitation outcomes than the standard of care group. the PACE ...
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The Influence of Perceived Support From Parental and Peer Relationships on Students' Health-related Beliefs and Behaviors

The Influence of Perceived Support From Parental and Peer Relationships on Students' Health-related Beliefs and Behaviors

Date: May 2013
Creator: Barton, Mitch
Description: College is an important time for young adults, but most college students fail to meet the daily recommendations for physical activity. Social support is associated with positive health practices, but limited research is available on the role of perceived support from specific relationships, (e.g., peers and parents). The purpose of this study was to evaluate the effect of perceived support from parental and peer relationships on health-related beliefs and behaviors. Participants (N = 333) completed the Quality of Relationships Inventory, Multidimensional Scale of Perceived Social Support, Satisfaction With Life scale, and a short version of the Physical Self-Description Questionnaire. While highly active students did not necessarily have more socially support relationships, females self-reported more conflict with both parents and more depth and support with a special person in their life than males, and parental and peer relationships appeared to be a greater influence on females' perceptions of satisfaction and self-worth.
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