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- All Subjects: Physical Activity
- Creators: Hoffner, Kristin
- Creators: Van Der Mars, Hans
- Creators: Chisum, Jack
- Status: Published
Description
Purpose: Exercise interventions often result in less than predicted weight loss or even weight gain in some individuals, with over half of the weight that is lost often being regained within one year. The current study hypothesized that one year following a 12-week supervised exercise intervention, women who continued to exercise regularly but initially gained weight would lose the weight gained, reverting back to baseline with no restoration of set-point, or continue to lose weight if weight was initially lost. Conversely, those who discontinued purposeful exercise at the conclusion of the study were expected to continue to gain or regain weight. Methods: 24 women who completed the initial 12-week exercise intervention (90min/week of supervised treadmill walking at 70%VO2peak) participated in a follow-up study one year after the conclusion of the exercise intervention. Subjects underwent Dual-energy X-Ray Absorptiometry at baseline, 12-weeks, and 15 months, and filled out physical activity questionnaires at 15 months. Results: A considerable amount of heterogeneity was observed in body weight and fat mass changes among subjects, but there was no significant overall change in weight or fat mass from baseline to follow-up. 15 women were categorized as compensators and as a group gained weight (+ 0.94±3.26kg) and fat mass (+0.22±3.25kg) compared to the 9 non-compensators who lost body weight (-0.26±3.59kg) and had essentially no change in fat mass (+0.01±2.61kg) from 12-weeks to follow-up. There was a significant between group difference (p=.003) in change in fat mass from 12-weeks to follow-up between subjects who continued to regularly vigorously exercise (-2.205±3.070kg), and those who did not (+1.320±2.156kg). Additionally, energy compensation from baseline to 12-weeks and early body weight and composition changes during the intervention were moderate predictors of body weight and composition changes from baseline to follow-up. Conclusion: The main finding of this study is that following a 12-week supervised exercise intervention, women displayed a net loss of fat mass during the follow-up period if regular vigorous exercise was continued, regardless of whether they were classified as compensators or non-compensators during the initial intervention.
ContributorsCabbage, Clarissa Marie (Author) / Gaesser, Glenn (Thesis advisor) / Chisum, Jack (Committee member) / Campbell, Kathryn (Committee member) / Arizona State University (Publisher)
Created2013
Description
Commitment to an activity is widely studied in leisure research. Serious Leisure Perspective (SLP) describes characteristics a committed activity participant possesses. The Psychological Continuum Model (PCM) describes the psychological process a person goes through to become committed to a leisure activity. Awareness, attraction, attachment and loyalty make of the four stages of PCM. Both perspectives have been used to describe committed leisure activity participants and commitment to organized recreational events. Research on leisure activity has yet to determine how the individual becomes loyal. Therefore, the purpose of this study is to determine the process in which recreation activity participates becomes loyal and to identify who can be labels as serious within the PCM Framework. Data was obtained from an online electronic survey distributed to participants of four U.S. marathon and half marathon events. A total of 579 responses were used in the final analysis. Path analysis determined the process in which a runner becomes committed. MANOVA is used to determine difference between leisure groups in the four stages of PCM. Results indicate that activity participants need to go through all four stages of PCM before becoming loyal. As knowledge increases, individuals are more motivated to participate. When the activity satisfies motives and becomes a reflection of their identity, feelings become stronger which results in loyalty. Socialization is instrumental to the progression through the PCM Framework. Additionally, attachment is the "bottleneck" in which all loyal activity participants my pass through. Differences exist between serious leisure groups in the attachment and loyalty stages. Those that are `less serious' are not as committed to the activity as their counterparts.
ContributorsMurphey, Elizabeth M (Author) / Lee, Woojin (Thesis advisor) / Hultsman, Wendy (Thesis advisor) / Larsen, Dale (Committee member) / Chisum, Jack (Committee member) / Arizona State University (Publisher)
Created2014
Description
An intervention study was conducted with elementary physical education teachers and their use of a newly developed series of fitness segments called Knowledge in Action (KIA). This study was designed to enable teachers to teach healthy behavior knowledge (HBK) in their classes without sacrificing physical activity levels. This study has two phases. First, the intervention was conducted to determine the effectiveness of the KIA fitness segment intervention. Second, teachers' perceptions of both teaching HBK and the KIA fitness segments were investigated. Ten teacher participants were randomly assigned to the intervention or control group. Intervention teachers participated in professional development, provided with all teaching materials, and YouTube videos that modeled the teaching of the KIA fitness segments. Teacher fidelity was measured through observations. Student physical activity patterns were measured in randomly selected teachers' classes (both intervention and control) to determine potential physical activity pattern differences between groups. Teachers were interviewed from one to three times across the project in order to determine perceptions of teaching HBK and the KIA fitness segments. Researchers used constant comparison method to uncover possible common themes. Student knowledge was assessed pre/post using PE Metrics Standard 3 cognitive test to determine HBK changes. Data analysis included General liner models (GLM) at the student level (gender) and Hierarchical linear models (HLM) at the school level (treatment, school). There was a moderate mean teacher fidelity score (77.9%) found among the intervention teachers. HLM results showed students in the intervention group had a 3.4(20%) greater improvement in HBK scores when compared with their control counterparts (p<0.001). Student activity levels were found to be similar in both groups with 871.33 and 822.22 steps in the intervention and control groups, respectively. Although all of the teachers thought it was important to teach HBK they were not spending time on it during classes at pretest. Three common themes were discovered: (a) Effective Teacher Training of the Segments, (b), Teachers Learned a Novel Strategy, and (c) Teachers Recommended Modifications. In summary, the KIA fitness segments received favorable views and gave teachers a way to teach HBK without reducing physical activity time.
ContributorsHodges, Michael (Author) / Kulinna, Pamela (Thesis advisor) / Van Der Mars, Hans (Committee member) / Lee, Chong (Committee member) / Arizona State University (Publisher)
Created2013
Description
Introduction: Less than half of U.S. adults meet the aerobic physical activity guidelines to exercise at least 150 minutes a week. An individual's decision to be physically active is influenced by their perceptions of physical activity. To address perceptions, interventions need to be implemented where adults spend one third of their day; the workplace. A number of physical activity interventions have been conducted and few have been successful at improving physical activity; therefore, there is a need to explore novel approaches to improve physical activity in the worksite. The purpose of this pilot study was to examine the impact of a seven-day gratitude intervention on perceptions of physical activity and happiness in the workplace. Methods: Full-time employees at two worksites participated in a seven-day online journaling study. Participants were randomized into the intervention (gratitude) or control group and were assessed for perceptions of physical activity and happiness at baseline, immediate post-test (day 7) and one-week follow-up (day 14). Results: Results of this study indicate that the seven-day gratitude intervention may not significantly improve perceptions of physical activity or increase happiness. Future research should consider assessing the individual's readiness for change at baseline, increasing the length of the intervention, testing participant level of gratitude at baseline and employing a larger sample size.
ContributorsRowedder, Lacey (Author) / Huberty, Jennifer (Thesis advisor) / Chisum, Jack (Committee member) / Lee, Chong (Committee member) / Arizona State University (Publisher)
Created2014
Description
Background: Limited physical activity (PA) is a key factor contributing to obesity and independently protects from diseases in youth and later in life. Students spend most of their time in schools sedentary and have limited opportunities to engage in PA. By making changes to the school environment and developing a school culture that actively supports and reinforces PA behavior, Comprehensive School Physical Activity Programs are designed to make PA engagement throughout each school day the accepted social norm. The purpose of this study was to determine the effects of environmental and behavioral modifications to school-level PA participation for girls and boys.
Methods: This study used a hybrid reversal design by alternating baseline phases with two intervention phases that provided increased access and opportunity to PA, and behavioral prompting and reinforcing plus access and opportunity, for all students to engage in PA during lunch. Physical activity and contextual data were collected using a previously validated instrument (System for Observing Play and Leisure Activity in Youth; SOPLAY). Behavioral data were collected using a novel instrument (System for Observing Behavioral Ecology for Youth in Schools; SOBEYS) developed to measure prompting and reinforcement contingencies of PA participation consistent with the Behavioral Ecological Model.
Data Analysis: The number of students engaged in moderate-to-vigorous PA (MVPA) and the proportion of students in MVPA were analyzed using visual analysis of graphic data and general linear statistical models, with environmental and behavioral variables as predictors.
Results: Increases in the number of girls and boys in MVPA were seen visually and statistically during the environmental and the environmental plus behavioral intervention phases compared to baseline. No differences were seen visually or statistically between intervention phases. Intervention effects were larger for boys than girls. The SOBEYS instrument was able to produce valid and reliable data regarding prompting and reinforcement of PA. However, environmental factors appear to have a greater influence on PA than behavioral factors.
Conclusion: Modifying the school environment to increase access and opportunity for PA during lunch can lead to positive changes in MVPA during the school day, with special consideration needed to engage more girls.
Methods: This study used a hybrid reversal design by alternating baseline phases with two intervention phases that provided increased access and opportunity to PA, and behavioral prompting and reinforcing plus access and opportunity, for all students to engage in PA during lunch. Physical activity and contextual data were collected using a previously validated instrument (System for Observing Play and Leisure Activity in Youth; SOPLAY). Behavioral data were collected using a novel instrument (System for Observing Behavioral Ecology for Youth in Schools; SOBEYS) developed to measure prompting and reinforcement contingencies of PA participation consistent with the Behavioral Ecological Model.
Data Analysis: The number of students engaged in moderate-to-vigorous PA (MVPA) and the proportion of students in MVPA were analyzed using visual analysis of graphic data and general linear statistical models, with environmental and behavioral variables as predictors.
Results: Increases in the number of girls and boys in MVPA were seen visually and statistically during the environmental and the environmental plus behavioral intervention phases compared to baseline. No differences were seen visually or statistically between intervention phases. Intervention effects were larger for boys than girls. The SOBEYS instrument was able to produce valid and reliable data regarding prompting and reinforcement of PA. However, environmental factors appear to have a greater influence on PA than behavioral factors.
Conclusion: Modifying the school environment to increase access and opportunity for PA during lunch can lead to positive changes in MVPA during the school day, with special consideration needed to engage more girls.
ContributorsLorenz, Kent Arnold (Author) / Van Der Mars, Hans (Thesis advisor) / Hodges Kulinna, Pamela (Committee member) / Ainsworth, Barbara E (Committee member) / Hovell, Melbourne F (Committee member) / Arizona State University (Publisher)
Created2014
Description
Recently, much of the Physical Education literature has focused on confronting the challenges associated with the rising number of overweight children in America's schools. Physical Education programs are often looked to as intervention sites to remedy the current obesity epidemic. Teachers are often also not held accountable for curriculum adherence and student outcomes in Physical Education due to the lack of a common curriculum. Therefore, measuring teacher fidelity to specific Physical Education curricula is imperative to determine student outcomes when teachers follow the model as intended. In response to these issues, it has become increasingly important to measure student physical activity levels in Physical Education programs to determine moderate to vigorous physical activity (MVPA) levels and to learn about teachers' fidelity to curricular models. Thus, the purpose of this study was to investigate teacher fidelity to the Dynamic Physical Education (DPE) curricular model after having completed DPE methods courses at the university level, when teaching in a DPE supported or non-supported districts. A secondary purpose of this study was to measure students' physical activity (PA) outcomes in classes where the curricular model was used with various levels of district support. Data were collected using mixed methods including an observation instrument, field notes, informal interviews, document analysis, and direct observation of physical activity. Descriptive statistics and t-tests were run to investigate differences between teacher support groups and by teacher fidelity groups. Teachers from both teacher support groups were teaching the curricular model with moderate to high fidelity. Findings suggest that fidelity levels were related to preparation on the DPE curricular model, ongoing professional development, and administrative support. Although the students were often standing (i.e., 40% of the lesson) and 30% of class time was spent in MVPA; teachers were frequently promoting physical activity both within (51%) and outside (50%) of Physical Education and the school day.
ContributorsKloeppel, Tiffany (Author) / Hodges-Kulinna, Pamela (Thesis advisor) / Van Der Mars, Hans (Committee member) / Margolis, Eric (Committee member) / Arizona State University (Publisher)
Created2011
Description
The U.S. Surgeon General has recommended that all Americans engage in regular physical activity throughout the lifespan as a way to maintain and improve health and reduce the risk of developing cardiovascular disease, diabetes, obesity, or other chronic conditions. The recommendation for children is a minimum of 60 minutes of moderate and intense physical activity everyday. As children enter adolescence their level of physical activity often decreases; and active adults were typically active adolescents. More than 50% of adults that begin a physical activity program discontinue the behavior within 9 months. Interventions to increase physical activity have looked at self-esteem and self-efficacy. Locus of control (LOC) is a concept that people either view their own behavior as influencing the events around them (internal) or other events controlling their fate or destiny (external). This study looked at locus of control as a predictor of exercise adherence and future exercise patterns in children ages 6-12 in Mesa, AZ. Locus of control as measured by the Child Nowicki-Strickland Internal External (CNSIE) scale differed by gender and by physical activity group at school at post-intervention. Self-reported physical activity as measured by the Physical Activity Questionnaire for Older Children (PAQ-C) showed differences in physical activity (PA) levels by gender for baseline school PA, by age group for baseline non-school PA, by gender and age group for post-intervention school PA, and by gender only for post-intervention non-school PA. A secondary objective was to assess if the Think Healthy About Nutrition and eXercise (THANX) after school program influenced participants' LOC or PA patterns. This study found that the THANX program had no effect on LOC or PA level at any time point.
ContributorsAguila, Holly J (Author) / Chisum, Jack (Thesis advisor) / Woodruff, Larry (Committee member) / Campbell, Kathy (Committee member) / Arizona State University (Publisher)
Created2012
Description
Background: The prevalence of childhood obesity has disproportionately affected Latino youth and can be seen with an increase incidence of Type 2 Diabetes. This increase in obesity can be attributed to physical inactivity. Increases in social support and self-efficacy are independently related to increases in physical activity. A lifestyle intervention can lead to increases in social support, self-efficacy and physical activity. Objective/Hypothesis: The objective of this study was to determine whether a 12-week lifestyle intervention could increase social support, self-efficacy and physical activity in obese Latino adolescents that participated in the intervention. It was hypothesized that adolescents that participated in the intervention would increase self-efficacy, social support from family and friends, and physical activity compared to their control counterparts. Study Design/Participants: In a randomized control trial, there were 125 Latino (n= 60 experimental group; n= 65 control group; mean age = 15.17 +- 1.65 Males n = 60; n = 65 females) participants included in this study. Participants were also required to have a BMI percentile >= 95th percentile for age and gender or BMI >= 30 kg/m2. Methods: The intervention, which was developed using the Social Cognitive Theory had components focusing on social support and self-efficacy and also consisted of nutrition education classes and physical activity sessions for 12 weeks. The psychosocial constructs of self-efficacy and social support were measured using the Adolescent Self-Efficacy for Diet and Activity Behaviors and Adolescent Social Support for Diet and Exercise Survey, respectively. Physical activity was assessed by the 3-day Physical Activity Recall. Results: We found significant increases in social support in family (p = 0.042) and vigorous physical activity (p = 0.001). There was also a significant difference between control and treatment group for moderate to vigorous physical activity after the intervention (p = 0.027). There were no changes in social support from friends or self-efficacy. Conclusion: We concluded that a 12-week lifestyle intervention did lead to changes in social support and physical activity behaviors. These changes could have been influenced by the intervention as they were measured these constructs pre/post intervention.
ContributorsRahman, Hanna (Author) / Shaibi, Gabriel (Thesis director) / Hoffner, Kristin (Committee member) / School of Nutrition and Health Promotion (Contributor) / School of Social and Behavioral Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Introduction/Purpose: the purpose of this study was to explore the perception of care after stillbirth and the use of physical activity and/or mindful approaches (e.g., yoga) to cope with grief in women of racial/ethnic minority who have experienced stillbirth.
Methods: This was an exploratory qualitative research study. Participants were African American, Hispanic, Asian, and American Indian women, between the ages of 26 and 38, who have experienced stillbirth within the past 3 years. Participants completed a 20-30 minute phone interview.
Results: Fourteen women participated in the study (M age = 31.02 ± 5.97 years; M time since stillbirth = 1.47 ± 0.94 years). Women’s perceptions about physical activity and mindfulness to cope with grief were coded into the following major themes: perception of health care after stillbirth (satisfaction with the level of care provided), recommendations about inter-conception health care from physician (relating to mental, emotional, and physical health), grief (comfort with communicating with the physician), coping mechanisms, perception of the relationship between physical activity and mood, barriers to participating in physical activity (social and behavioral), pre-pregnancy physical activity, and perception of mindful approach (e.g., yoga) as a coping mechanism.
Conclusion: This was the first study to explore perceptions of health care and the use of physical activity and/or mindful approaches (e.g., yoga) to cope with grief after stillbirth in women of racial/ethnic minority. Findings from this study may help inform health care professionals alter their care practices and introduce physical activity and mindfulness based approaches as coping mechanisms to mothers of stillborn babies.
Methods: This was an exploratory qualitative research study. Participants were African American, Hispanic, Asian, and American Indian women, between the ages of 26 and 38, who have experienced stillbirth within the past 3 years. Participants completed a 20-30 minute phone interview.
Results: Fourteen women participated in the study (M age = 31.02 ± 5.97 years; M time since stillbirth = 1.47 ± 0.94 years). Women’s perceptions about physical activity and mindfulness to cope with grief were coded into the following major themes: perception of health care after stillbirth (satisfaction with the level of care provided), recommendations about inter-conception health care from physician (relating to mental, emotional, and physical health), grief (comfort with communicating with the physician), coping mechanisms, perception of the relationship between physical activity and mood, barriers to participating in physical activity (social and behavioral), pre-pregnancy physical activity, and perception of mindful approach (e.g., yoga) as a coping mechanism.
Conclusion: This was the first study to explore perceptions of health care and the use of physical activity and/or mindful approaches (e.g., yoga) to cope with grief after stillbirth in women of racial/ethnic minority. Findings from this study may help inform health care professionals alter their care practices and introduce physical activity and mindfulness based approaches as coping mechanisms to mothers of stillborn babies.
ContributorsArvayo, Jordan Michelle (Author) / Huberty, Jennifer (Thesis director) / Hoffner, Kristin (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor)
Created2015-05
Description
Physical activity patterns among youth has become an issue throughout the world in recent decades. The Centers for Disease Control and Prevention have established daily physical activity guidelines for youth; however, not all children follow these recommendations. Factors leading to this include limited opportunities for active transportation and after-school activity programs. In this study, 3rd through 9th grade students from a rural community were evaluated based on their transportation method to and from school, participation in after-school sports programs, and overall how active they were in a 24-hour period based on step count. Students completed questionnaires regarding their transportation and sports participation and wore pedometers to determine their daily step counts. The results found that only 4.5% of the students used active transportation to and from school. About one-third participated in after-school programs, and of this amount, approximately one-third took part in those offered at school. Elementary and middle school males met the recommended amount of daily steps at the first time of data collection, but not at the second or third. Elementary and middle school females did not meet the recommended amount of steps at time 1, but did at time 2 and time 3. Ninth-grade females did not meet the recommended step count at either time data was collected. The amount of students who used active transport limited the ability to determine significant differences between those who used active transport and those who did not. At time 3, there were significant differences with students who participated in after-school sports achieving more daily steps than those who did not participate. There was also a trend toward this same outcome in time 1. From these results, it was determined that more opportunities for active transportation and after-school sports should be implemented into this community. With this, the activity levels among students may increase and more students would reach the recommended amount of daily physical activity.
ContributorsSwiss, Amanda (Author) / Kulinna, Pamela Hodges (Thesis director) / Hoffner, Kristin (Committee member) / Stylianou, Michalis (Committee member) / Barrett, The Honors College (Contributor)
Created2013-12