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Central Hemodynamics Measured During 5 Repetition Maximum Free Weight Resistance Exercise, Jonathan S. Howard, Cherilyn N. Mclester, Thomas W. Evans, John R. Mclester, Jimmy P. Calloway

International Journal of Exercise Science

International Journal of Exercise Science 11(2): 342-354, 2018. The PhysioFlow™ is a piece of equipment that uses bioimpedance cardiography to measure central hemodynamics. The purpose of this research was to explore the novel approach of monitoring central hemodynamics during free weight resistance exercise using bioimpedance cardiography throughout a 5 repetition maximum (5RM). Thirty participants ranging from beginner to advanced lifters (16 males and 14 females) completed a 5RM for back squat, seated push press, and bicep curl while connected to the PhysioFlow™ to assess the response of heart rate (HR), stroke volume (SV), cardiac output (Q), and ejection fraction (EF). …

Influence Of Baseline Muscle Strength And Size Measures On Training Adaptations In Resistance-Trained Men, Gerald T. Mangine, Adam M. Gonzalez, Jeremy R. Townsend, Adam J. Wells, Kyle S. Beyer, Amelia A. Miramonti, Nicholas A. Ratamess, Jeffrey R. Stout, Jay R. Hoffman

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 198-213, 2018. The influence of baseline strength or muscle size on adaptations to training is not well-understood. Comparisons between novice and advanced lifters, and between stronger and weaker experienced-lifters, have produced conflicting results. This study examined the effect of baseline muscle strength and size on subsequent adaptations in resistance-trained individuals following a traditional high-volume, short-rest resistance training protocol. Fourteen resistance-trained men (24.0±2.7 y; 90.1±11.7 kg; 169.9±29.0 cm) completed pre-training (PRE) ultrasound measurements of muscle cross-sectional area (CSA) in the rectus femoris (RF), vastus lateralis (VL), pectoralis major, and triceps brachii (TRI) prior to strength …

Are Children And Their Parents More Active When Children Engage In More Structured Activities?, Nathan A. Chiarlitti, Angela M. Kolen

International Journal of Exercise Science

International Journal of Exercise Science 11(5): 106-115, 2018. Children’s participation in sport/physical activity programs (structured activity) may play a critical role in promoting (or hindering) activity in children and their parents. The purpose of this pilot study was to determine if the amount of time children spend participating in structured activity correlates with physical activity levels (moderate to vigorous physical activity (MVPA)/day and steps/day) in children and their parents. Convenience sampling was used to collect data from 14 parent-child pairs with children ranging from ages 7-10 years. Parental and children’s daily physical activity levels (MVPA/day and steps/day) were determined from …

Effectiveness Of Tai Chi On Cardiac Autonomic Function And Symptomatology In Women With Fibromyalgia: A Randomized Controlled Trial, Alexei Wong, Arturo Figueroa, Marcos A. Sanchez-Gonzalez, Won-Mok Son, Oksana P. Chernykh, Song-Young Park

Health and Kinesiology Faculty Publications

The present study examined the effects of a 12-week Tai Chi (TC) training regimen on heart rate variability (HRV), symptomatology, muscle fitness and body composition in women with fibromyalgia. Participants were randomly assigned to either a TC training group (n = 18) or a control group (n = 19). HRV, symptomatology, muscle fitness and body composition were measured before and after 12 weeks. There were significant decreases (p < 0.05) in sympathovagal balance (LnLF/LnHF), sympathetic tone (LnLF, nLF), pain, and fatigue, and significant increases (p < 0.05) in parasympathetic tone (LnHF, nHF), strength and flexibility following TC compared with no changes after control. The changes in LnLF and LnLF/LnHF were correlated with changes in pain. There were no significant changes in HR, sleep quality and body composition after TC or control. TC may be an effective therapeutic intervention for improving sympathovagal balance, pain, fatigue, strength and flexibility in women with fibromyalgia.

Central Hemodynamics Measured During 5 Repetition Maximum Free Weight Resistance Exercise, Jonathan S. Howard, Cherilyn N. Mclester, Thomas W. Evans, John R. Mclester

Faculty Articles

The PhysioFlow™ is a piece of equipment that uses bioimpedance cardiography to measure central hemodynamics. The purpose of this research was to explore the novel approach of monitoring central hemodynamics during free weight resistance exercise using bioimpedance cardiography throughout a 5 repetition maximum (5RM). Thirty participants ranging from beginner to advanced lifters (16 males and 14 females) completed a 5RM for back squat, seated push press, and bicep curl while connected to the PhysioFlow™ to assess the response of heart rate (HR), stroke volume (SV), cardiac output (Q), and ejection fraction (EF). Participants were cued for form and to breathe …

Internships In Kinesiology: Reconsidering Best Practices, Mark Urtel, Sara F. Michaliszyn, Craig L. Stiemsma

Faculty Work Comprehensive List

The purpose of this paper is to summarize the 2018 American Kinesiology Association (AKA) pre-workshop on best practices in internships. This pre-workshop contained 2 keynote speakers, 5 ignite sessions, and 6 round-table discussions looking at the status of internships in departments of kinesiology, nationally. It is clear kinesiology does not have a common practice for implementing internships. Given the many variables in respect to offering an internship, such as: curricular mandates, faculty workload policy, community partner availability, program outcomes, student learning objectives, and assessment tools this is not surprising. Perhaps we should rethink the notion that there is a set …

A Comparison Of Body Composition Across Two Phases Of The Menstrual Cycle Utilizing Dual-Energy X-Ray Absorptiometry, Air Displacement Plethysmography, And Bioelectrical Impedance Analysis, Courtenay S. Hicks, Cherilyn N. Mclester, Tiffany A. Esmat, John R. Mclester

International Journal of Exercise Science

International Journal of Exercise Science 10(8): 1235-1249, 2017. The purpose of this investigation was to utilize several different technologies to compare body composition results across two phases of the menstrual cycle, and to investigate whether being on hormonal birth control or not has any effect on results. The secondary purpose was to determine if body satisfaction or perception of fluid retention differed across phases or between groups. A total of 39 females with a mean age of 26 ± 7 yrs were included in the study, 15 were on hormonal birth control (BC) and 24 were not (non-BC). Participants came …

Effect Of Actigraph's Low Frequency Extension For Estimating Steps And Physical Activity Intensity, Yuri Feito, Lyndsey M. Hornbuckle, Lauren A. Reid, Scott E. Crouter

Faculty Articles

This study examined the effects of the ActiGraph’s (AG) low-frequency extension (LFE) filter on steps and physical activity classification in the free-living environment. Thirty-four African-American women (age, 24.5±5.2 years; BMI, 24.9±4.5 kg/m2) had daily activity measured simultaneously with an AG-GT3X+ accelerometer and a New Lifestyles NL-800 pedometer for seven days. Steps per day (steps/day) and time (minutes/day) spent in sedentary, light, and moderate-to-vigorous physical activity (MVPA) were examined with and without the LFE filter (AG-LFE and AG-N, respectively). The AG-LFE recorded more total steps (13,723±4,983 steps/day) compared to AG-N and NL-800 (6,172±2,838 and 5,817±3,037 steps/day, respectively; p<0.001). Compared to the AG-N, the AG-LFE estimated less time in sedentary behaviors (518.7±92.1 vs. 504.2±105.4 min/day, respectively; p<0.001), and more time in light (247.7±70.4 vs. 279.1±74.7 min/day, respectively; p<0.001) and MVPA (18.9±16.9 vs. 21.5±18.2 min/day, respectively; p<0.001), respectively. These data suggest that steps and physical activity classifications will be affected when using the ActiGraph with and without the LFE filter. Future research should investigate the accuracy of these measures using the LFE filter.

Effects Of Heat Exposure On Body Water Assessed Using Single-Frequency Bioelectrical Impedance Analysis And Bioimpedance Spectroscopy, Brett S. Nickerson, Michael R. Esco, Phillip A. Bishop, Brian M. Kliszczewicz, Henry N. Williford, Kyung-Shin Park, Bailey A. Welborn, Ronald L. Snarr, Danilo V. Tolusso

International Journal of Exercise Science

International Journal of Exercise Science 10(7): 1085-1093, 2017. The purpose of this study was to determine if heat exposure alters the measures of total body water (TBW), extracellular water (ECW), and intracellular water (ICW) in both single-frequency bioelectrical impedance analysis (BIA) and bioimpedance spectroscopy (BIS). Additionally, we sought to determine if any differences exist between the BIA and BIS techniques before and after brief exposure to heat. Body water was evaluated for twenty men (age=24±4 years) in a thermoneutral environment (22°C) before (PRE) and immediately after (POST) 15 min of passive heating (35°C) in an environmental chamber. The mean difference …

The Relationship Between Athletic Identity And Academic Major Chosen By Student-Athletes, Sayvon Jl Foster, Matt R. Huml

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 915-925, 2017. This study examines the correlation between athletic identity and academic major selection among intercollegiate student-athletes. A thorough review of literature focusing on academic clustering, athletic identity, and academic development leads to the development of two hypotheses – 1) student-athletes with stronger athletic identity will have a declared major of decreased academic rigor; and 2) student-athletes with stronger athletic identity will be more likely to be undecided on their major. Data were collected through a survey administered to Division I, II, and III student-athletes recording academic major and their Athletic Identity Measurement Scale …

Corporate Social Responsibility: Considerations For Sport Management In The Age Of Neoliberalism, Anthony J. Weems, Justin R. Garner, Kristi Oshiro, John N. Singer

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 900-914, 2017. For financial reasons, in efforts to maintain legitimacy, and in response to social pressures, sport organizations increasingly engage with corporate social responsibility (CSR). However, with the rise of global neoliberalism, the logic of CSR can be problematic. In this essay, we provide a brief overview, critique, and reconstruction of CSR in the sport industry. Specifically, we call into question three popularized forms of CSR: (1) diversity, inclusion, and diversity management, (2) environmental responsibility, and (3) health and physical activity-based initiatives. In a neoliberal context, CSR in sport provides, at best, a limited …

From Crisis To De-Escalation: An Examination Of Politics In A U.S. High School Steroid Testing Program, Brennan K. Berg, Kathryn Winsley, Rhema D. Fuller, Michael Hutchinson

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 890-899, 2017. Preventing the use of performance enhancing drugs in sport has long been a concern for policymakers. In the United States, amidst national attention the state of Texas constructed the country’s largest steroid testing program for high school athletes. However, resource allocation steadily declined until the program was defunded in 2015. Using escalation of commitment theory as a framework, this conceptual paper examines the critical, but less studied, role of politics and de-escalation behavior that directed this distinct sport situation. By combining policy and media documents with the academic literature, this paper allows …

Coaches’ Perception Of Organizational Socialization Process Of International Student-Athletes And The Effect Of Cultural Distance: An Exploratory Study., Evelyn S. Jara-Pazmino, Bob Heere, Tom H. Regan, Christine E. Blake, Richard Southall

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 875-889, 2017. This study focuses on the coaches’ perspective of the organizational socialization process of new international student-athletes. After analyzing the information of 10 in-depth interviews with experienced NCAA Division I coaches, this exploratory study aided the researchers to identify socialization tactics being used to successfully integrate international student-athletes entering USA college teams. ISAs come from different cultures, and pending on their home nation culture they might be challenged in their ability to socialize within their new surroundings. Results indicate that the cultural distance between team culture and ISA’s culture affects the effectiveness of …

Cultural Values And Gender Equity On National Olympic Committee Boards, Na Young Ahn, George B. Cunningham

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 857-874, 2017. Women are under-represented in leadership positions throughout sport, and researchers have largely explored organizational, group, and individual antecedents of this phenomenon. The purpose of the current study was to expand on this understanding by investigating the influence of a country’s cultural values on the representation of women on National Olympic Committees. Drawing from Hofstede’s cultural dimensions theory, the authors included five cultural values: power distance, uncertainty avoidance, individualism-collectivism, masculinity-femininity, and long-term orientation. Results indicate that women constituted only 19.7 percent of the positions on the boards. Regression analysis, controlling for size of …

“I Will Change The World”: The Intersection Of Social Change And Male College Athletes’ Leadership Perspectives, Rhema D. Fuller, C. Keith Harrison, S. Malia Lawrence, Jeff Eyanson, Danielle Mccardle

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 845-856, 2017. Historically, men have been characterized as task-oriented leaders who are motivated by desires for autonomy, wealth, and power (17, 33). However, these “masculine” views of leadership might not accurately capture the leadership motivations of Millennial males as the views were developed in previous generations (4). Given the commitment of many Millennials towards socially responsible attitudes and behaviors (18, 25), we utilized a qualitative research design to examine the influence of social change on the leadership motivations of Millennial male intercollegiate athletes. In doing so, we found participants were motivated to lead in …

Are You Welcomed? A Racial And Ethnic Comparison Of Perceived Welcomeness In Sport Participation, Trevor Bopp, Robert Turick, Joshua D. Vadeboncoeur, Thomas J. Aicher

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 833-844, 2017. Sport has become racialized such that minority youth accrue limited health and academic benefits from participation, compared to their White counterparts. Understanding the welcomeness that minorities feel in sport, leisure and physical activities plays an important role in breaking down barriers to participation. Thus, the overall aim of this study is to further examine the determinants of sport participation, particularly as it relates to race, socialization and perceived welcomeness. College students (N = 451) scored their perceived level of welcomeness for Whites, African Americans and Hispanic/Latinos in 14 sports. Results reveal significant …

Does Time Heal All Wounds? A Case Study On Rival Perceptions Before And After Conference Realignment, Cody T. Havard, Daniel L. Wann, Timothy D. Ryan, Norman O'Neal

International Journal of Exercise Science

International Journal of Exercise Science 10(6): 823-832, 2017. The current longitudinal case study investigated how conference realignment and beginning new annual competitions impacted fan rival perceptions for fans of the Texas A&M Aggies, Missouri Tigers, and Texas Christian University Horned Frogs. In particular, fan rival perceptions before and after conference realignment were compared to determine if significant differences were present. Findings indicate that history plays an important role in rivalry as fans of teams sharing long-standing rivalries with schools in their previous conference (i.e., Texas A&M/Texas and Missouri/Kansas) did not differ in their rival perceptions before or after conference realignment. …

Body Mass Index Associations Between Mother And Offspring From Birth To Age 18: The Fels Longitudinal Study, Stacie S. Swanton, Audrey C. Choh, Miryoung Lee, Lloyd L. Laubach, Jon K. Linderman, Stefan A. Czerwinski, Matthew J. Peterson

Health and Sport Science Faculty Publications

Background: Parental obesity is a known determinant of childhood obesity. Previous research has shown a strong maternal influence on body mass index (BMI) during infancy and early childhood.

Objectives: The purpose of this research was to investigate the BMI associations between mother and offspring from birth to age 18 years.

Methods: Participants were selected from the Fels Longitudinal Study. The current study sample includes 427 (215 mother/son and 212 mother/daughter) mother/child pairs. These pairs are repeatedly measured at multiple age groups in children, resulting in a total of 6,263 (3,215 mother/son, 3,048 mother/daughter) observations for data analysis. Inclusion criteria were …

Effect Of Long-Term Beta-Alanine Supplementation On Performance In Male Collegiate Rugby Athletes, Charles Smith

Theses

This study investigated the effects of six weeks of beta-alanine (BA) supplementation on the anaerobic performance of collegiate male rugby players. Beta-alanine is a precursor to carnosine, an intramuscular buffer that helps maintain pH during high-intensity exercise. Rugby is a sport characterized by repeated bouts of high-intensity efforts, making it a prime candidate to benefit from improved buffering capacity.

Twenty-one male rugby players were recruited for the double-blind, placebo-controlled study, with 16 completing the post-testing. Participants were randomly assigned to either a beta-alanine group (6.4 g/day) or a placebo group (6.4 g/day of maltodextrin). Both groups continued their normal team …

Sport Commitment Among Adult Recreational Soccer Players: Test Of An Expanded Model, Amanda L. Frayeh, Beth Lewis

International Journal of Exercise Science

International Journal of Exercise Science 10(1): 4-24, 2017. Adult sport leagues provide opportunities for physical activity (PA), but little is known about adults’ commitment to recreational sports. We proposed two expanded versions of Scanlan and colleagues’ sport commitment model (SCM) to explore psychosocial factors related to adults’ participation in these leagues. Model 1 proposed athletic identity and social cohesion as additional predictors of commitment. Previous research found these variables to be positively related to commitment, but had not systematically examined them within the context of the SCM. We also explored participation in moderate-to-vigorous physical activity (MVPA) as a behavioral manifestation …

Physical Activity, Body Mass Index, And Clustered Metabolic Risk In U.S. Adolescents: 2007-2012 Nhanes., Bethany Dawn Williams

UNF Graduate Theses and Dissertations

Objectives: To examine variation in clustered metabolic risk (cMetS) in adolescents classified as not overweight/active (NOA), not overweight/not active (NONA), overweight/active (OA), and overweight/not active (ONA).

Background: While studies to date have shown that children and adolescents who meet the current physical activity (PA) recommendations and maintain a healthy body weight demonstrate significantly lower cardiometabolic risk, there are some studies that suggest the relationship between PA and metabolic risk may be mediated by adiposity.

Methods: The sample included adolescent participants (n=875; 12-17 years) of the 2007-2012 National Health and Nutrition Examination Survey (NHANES). The cMetS score included triglycerides, high-density lipoprotein …

Organizational Misconduct Within The National Collegiate Athletic Association, Khirey Bennie Walker

LSU Doctoral Dissertations

Prior research on organizational misconduct within intercollegiate athletics focuses on the penalties administered by the NCAA and types of violations committed by member institutions, rather than the engagement of misconduct and the role of the NCAA as a social-control agent. Consequently, the purpose of this dissertation is to analyze the relationship between social-control agents and potential wrongdoers (i.e., organizations), in addition to how the relationship affects the evolving line separating right from wrong. A three-paper multiple method examination has been conducted, including a historical analysis of NCAA enforcement, a qualitative framing analysis on the detailing of NCAA major infractions to …

The Effect Of A Moderately-Low And High Carbohydrate Intake On Crossfit Performance, Kurt A. Escobar, Jacobo Morales, Trisha A. Vandusseldorp

International Journal of Exercise Science

International Journal of Exercise Science 9(4): 460-470, 2016. CrossFit is a metabolically demanding strength and conditioning method which performance may benefit from a carbohydrate (CHO)-rich diet. This study investigated the effect of three consecutive days of high CHO intake on CrossFit performance and corresponding metabolically -related variables in strength trained individuals. Eighteen subjects with a CHO intake of <6 g/kg/day were randomly assigned into a CHO (n = 9) or control (C) group (n =9) and underwent a 9-day training protocol. During days 1, 5, and 9, performance was measured as repetitions completed during a 12 minute CrossFit workout. Oxygen consumption (VO2), respiratory exchange ratio (RER), and blood lactate (BL) were also measured. Days 6-8, the CHO group increased CHO intake from <6 g/kg/day to 6-8 g/kg/day; the C group maintained their current intake of <6 g/kg/day. On days 6 and 7 both groups performed CrossFit workouts followed by a day of rest prior to day 9. There was a significant increase in repetitions completed in both groups in day 9 (vs. means score of day 1 + 5) (p = 0.002), but no differences between C and CHO groups (p = 0.111). However, the CHO group displayed a 15.2 repetition increase (+10.9%) in day 9, compared to 5.7 (+4.2%) by the C group. VO2, RER, and BL were not influenced by the experimental intervention. Our results suggest that the CrossFit-embraced practice of moderately-low CHO diets may be adequate in CHO during short periods of training, however, given the noted trend, extended training periods may be effected.

The Effect Of Post-Resistance Exercise Amino Acids On Plasma Mcp-1 And Ccr2 Expression, Adam J. Wells, Jay R. Hoffman, Adam R. Jajtner, Alyssa N. Varanoske

Faculty Articles

The recruitment and infiltration of classical monocytes into damaged muscle is critical for optimal tissue remodeling. This study examined the effects of an amino acid supplement on classical monocyte recruitment following an acute bout of lower body resistance exercise. Ten resistance-trained men (24.7 ˘ 3.4 years; 90.1 ˘ 11.3 kg; 176.0 ˘ 4.9 cm) ingested supplement (SUPP) or placebo (PL) immediately post-exercise in a randomized, cross-over design. Blood samples were obtained at baseline (BL), immediately (IP), 30-min (30P), 1-h (1H), 2-h (2H), and 5-h (5H) post-exercise to assess plasma concentrations of monocyte chemoattractant protein 1 (MCP-1), myoglobin, cortisol and insulin …

The Effect Of Weighted Body Armor On Close Combat Reaction Time And Core Muscle Activation 2016, Christopher Banta

Master's Theses

The purpose of this study was to measure the choice reaction time and myoelectric activity of the right and left rectus abdominus, and right and left external obliques required to initiate movement in response to a visual stimulus that signaled performance of four different closecombat movements (left or right cross and left or right dodge). Reaction time and myoelectric activity were then compared with performing the movements in response to the visual stimulus while wearing a weighted vest that simulated wearing tactical body armor. Myoelectric activity was measured as the average root mean square (RMS) of the surface electromyography (sEMG) …

Elementary Educators' Perspective Of Physical Education And The Physical Education Teacher, Jennifer M. Garcia

Theses and Dissertations

Physical education continues to have the reputation it has had for years of being a subject of marginalization and of least importance in the school curriculum. The purpose of this study is to gain a better understanding of the perceptions of educators of physical education and the physical education teacher in the Rio Grande Valley. The researcher attempts to find, understand, and describe the perceptions of the educator’s view of this subject matter. Statistical significance was set at the .05 level for both tests of analyses. The researcher offers the null hypothesis of no difference between educator’s perception of PE …

Exploring The Information Source Preferences Among Canadian Adult Golf League Members, Melissa J. Davies, Dianna Gray

College of the Pacific Faculty Articles

With an aging demographic, and the abundance of physical inactivity in Canada, sport professionals need to understand how best to recruit and retain adults in sport and recreational activities, namely, golf leagues. Canadian golf league participants (N = 419; Mage = 62 years old) completed an online survey detailing their propensity to utilize a variety of information sources prior to making the decision to join a golf league. Results from a principal component analysis of a revised Information Sources Inventory, suggested that golfers in this sample were most likely to utilize Personal and Social sources of information associated with their …

Collegiate Coaches’ Knowledge Of The Female Athlete Triad In Relation To Their Characteristics, Jillian E. Frideres, Sue G. Mottinger, Jose M. Palao

Health & Human Performance Faculty Publications

The purpose of this study was to determine what coaches of female athletes know about the female athlete triad. The sample involved 472 NCAA Division I coaches of female athletes. The variables studied were coaches’ knowledge and confidence about the triad and coaches’ characteristics (coach’s gender, age, type of coach, degree held, years of experience in coaching females, continuing education participation specific to the triad and/or triad components, and sport coached). Coaches’ knowledge of the female athlete triad is higher for coaches who have received triad education. No differences regarding knowledge of the female athlete triad were found by gender, …

An Ideal-Type Through Innovation Diffusion: Recording The Construction History Of Football Stadiums In The National Collegiate Athletic Association Division I Football Bowl Subdivision (Fbs), Patrick Michael Tutka

LSU Doctoral Dissertations

Dr. John Bale (1984) argued sport scholars need to examine whether innovation diffusion occurred in sport. Rogers (1962, 2003) argued innovation diffusion process involves the following: 1) an innovation; 2) an available communication system(s); and occurs 3) over time; and 4) among members of a social system (p. 11). This project also adds geography as suggested by Bale (1984) and Hagerstrand (1952, 1953) to the study of innovation diffusion. The purpose of the current project is to examine whether innovation diffusion exists within the strong social system of college football. The study involves the collection of data on college football …

Describing The Prevalence And Awareness Of Sport-Related Concussion In University Intramural And Club Sport Participants, Makenzie L. Brown

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Concussion injuries are growing in number among athletes across the nation. The majority of concussion research to date focuses on collegiate and high school athletes. University athletes make up a small percentage of the student body population compared to the large number of students that participate in club and intramural sports. These students participate in the same sports, assume the same risks, and may experience the same adverse effects of concussion, often without appropriate medical oversight.

Purpose: The purpose of this study was to determine if concussion is a problem among intramural and club sport participants, if these participants …