Kinesiology Commons^™

The Effects Of Exercise Training On Cholesterol Efflux Capacity In The Heritage Family Study, Joshua Adam Hawkins

Theses and Dissertations

Cholesterol efflux capacity (CEC) has been associated with cardiovascular disease risk independent of HDL-C levels. However, the effect of regular exercise on CEC is not yet fully understood. Therefore, we examined the effects of exercise training on CEC in the HERITAGE Family Study. In HERITAGE, subjects participated in an endurance training program that consisted of exercise on a cycle ergometer three times per week for 20 weeks. Global and non-ABCA1 CEC were measured at baseline and post-training in 542 subjects via a cell- based radiolabeled CEC assay. Neither global nor non-ABCA1 CEC significantly changed with training in the whole cohort. …

Knowledge Regarding Cancer-Related Fatigue: A Survey Of Physical Therapists And Individuals Diagnosed With Cancer, Shana Harrington, Mary Insana Fisher, Jeannette Lee, Joy C. Cohn, Daniel Malone

Physical Therapy Faculty Publications

Background: Cancer-related fatigue (CRF) is a common side effect and remains under-diagnosed. Screening of CRF by physical therapists (PTs) and patient perspectives of their experiences has not been comprehensively examined.

Purpose: To survey PTs to understand the frequency of CRF screening, and to assess the knowledge and experiences of survivors as it relates to CRF.

Methods: Two separate electronic surveys developed by the authors were distributed. One targeted oncology PTs, the other for adult survivors of cancer.

Results: Of the 199 PT respondents, 36% reported screening for CRF at every encounter. Screening included interviews (46%) and/or standardized questionnaires (37%). The …

Visuomotor Rotation Adaptation And Workspace Manipulation: A Behavioral And Cognitive Emphasis, Reuben N. Addison

LSU Doctoral Dissertations

This is a three-study dissertation in which we aimed to broaden our knowledge of the mechanisms contributing to a 45° clockwise visuomotor adaptation by including variations in workspace. We provide behavioral and in one study physiological outcomes as evidence to support our conclusions. In the first experiment, we observed the adaptation of movement parameters such as pathlength, movement time, resultant velocity, and normalized jerk across groups trained with rotated visual feedback with both the left and right hands. Workspace location and hand differentially affected movement trajectory length. The group that practiced the task with their nondominant, left hand showed larger …

Differences In Stronger Versus Weaker Firefighters In Selected Measures Of Power, Quincy Johnson, J. Jay Dawes, Melissa Uftring, Marcel Lopes Dos Santos, Davis Hale, Gabriel J. Sanders, Will Peveler, Roger O. Kollock

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 552-560, 2022. Firefighters are required to perform a wide array of physically demanding job tasks, such as forcible entry, charged hose advances and victim extractions. An adequate level of muscular strength and power are required to successfully perform these tasks. The purpose of this study is to investigate the differences in stronger and weaker firefighters in measures of power. Archived data for twenty-seven (age = 34.3 ± 7.9 yr, body height = 176.3 ± 7.2 cm, body mass = 89.4 ± 15.7 kg) full-time firefighters were analyzed. Participants were placed into one of two …

Effects Of Six-Week Periodized Versus Non-Periodized Kettlebell Swing Training On Strength, Power And Muscular Endurance, Evaldo Rui Tavares Santos Junior, Belmiro De Salles, Ingrid Dias, Roberto Simão, Jeff Willardson

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 526-540, 2022. The purpose of this study was to compare a periodized versus a non- periodized protocol of kettlebell (KTB) swings over six weeks on strength, power, and muscular endurance. Twenty-eight high intensity functional training (HIFT) practitioners were assigned to non- periodized (NPG = 11), periodized (PG = 11), or control groups (CG = 6). NPG used the same load (20 kg) throughout the training period while the PG used a step loading progression (with an added four kilograms every two weeks). Measures of strength and muscular endurance in the deadlift exercise, and power …

Effect Of Different Numbers Of Interset Antagonist Proprioceptive Neuromuscular Facilitation Stretching On The Total Number Of Repetitions For The Agonists, Humberto Miranda, Aline Aparecida De Oliveira, Juliana Soares Dos Santos Ribeiro, Fabio Henrique De Freitas, Juliana Brandão Pinto De Castro, Renato L. Alvarenga, Jeff Willardson

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 498-506, 2022. Recent studies have observed that stretching applied to antagonist muscles can promote improvement in agonist muscle performance. The purpose of this study was to investigate the effect of different numbers of interset proprioceptive neuromuscular facilitation (PNF) stretching for the antagonists on the total number of repetitions completed for the agonists (quadriceps) in the leg extension exercise. Fourteen physically active individuals (age: 29.35 ± 10.5 years; body mass: 79.1 ± 11.34 kg; height: 170.4 ± 8.7 cm) participated in this study. The following experimental protocols were performed: 1) Traditional protocol (Traditional) …

Pre-Exhaustion Training, A Narrative Review Of The Acute Responses And Chronic Adaptations, Thiago Trindade, Ragami Alves, Bruno De Castro, Matheus De Medeiros, Jason De Medeiros, Paulo Dantas, Jonato Prestes

International Journal of Exercise Science

International Journal of Exercise Science 15(3): 507-525, 2022. Pre-exhaustion (PE) is a popular resistance training strategy that involves performing a single-joint exercise followed by a multi-joint exercise with minimal recovery between the transition. This approach is widely used by bodybuilding athletes and resistance training (RT) enthusiasts with the aim of enhancing muscle strength and hypertrophy. The present paper aimed to provide a narrative review as to the effects of the PE method on different acute and chronic outcomes, and discuss relevant practical applications. When considering the body of literature as a whole, we conclude that current evidence does not support …

Electromyographic Examination Of Hip And Knee Extension Hex Bar Exercises Varied By Starting Knee And Torso Angles, Edward Jo, Kevin A. Valenzuela, Whitney Leyva, Jennifer Rivera, Kalin Tomlinson, Elisabeth Zetiz

International Journal of Exercise Science

International Journal of Exercise Science 15(1): 541-551, 2022. Variations of the deadlift can be executed using the hexagonal (hex) bar by altering, for instance, the knee and torso angles while maintaining a constant hip angle at the start position. PURPOSE: To examine muscle activation patterns of the biceps femoris, rectus femoris, and erector spinae during three deadlift variations using the hex bar. METHODS: Twenty resistance-trained male and female subjects performed hex bar deadlift variations in three different starting knee flexion positions: 128.4 ± 8.5°, 111.9 ± 8.7°, and 98.3 ± 6.5°. Subjects performed three repetitions at 75% of their three-repetition …

Response To A Water Bolus In Long Term Oral Contraceptive Users, Whitley C. Atkins, Brendon P. Mcdermott, Abigail T. Colburn, Stavros A. Kavouras

Health, Human Performance and Recreation Faculty Publications and Presentations

The purpose of our study was to determine the responses to an acute water bolus in long-term oral contraception (OCP) users. Seventeen female volunteers (27 ± 5 y, 64.1 ± 13.7 kg, 39.6 ± 5.9 kg/LBM) provided consent and enrolled in our study. All were long-term OCP users and participated in two trials, one during the active pill (High Hormone, HH) dose of their prescribed OCP and one during the sham pill (Low Hormone, LH) dose. Participants reported to the laboratory euhydrated, were fed breakfast, remained seated for 60 min and were provided a bolus of room temperature water in …

Acute And Chronic Bone Marker And Endocrine Responses To Resistance Exercise With And Without Blood Flow Restriction In Young Men, Debra A. Bemben, Vanessa D. Sherk, Samuel R. Buchanan, Sojung Kim, Kyle Sherk, Michael G. Bemben

Health & Human Performance Faculty Publications

In this study, we compared acute and chronic bone marker and hormone responses to 6 weeks of low intensity (20% 1RM) blood flow restriction (BFR20) resistance training to high intensity (70% 1RM) traditional resistance training (TR70) and moderate intensity (45% 1RM) traditional resistance training (TR45) in young men (18–35 years). Participants were randomized to one of the training groups or to a control group (CON). The following training programs were performed 3 days per week for 6 weeks for knee extension and knee flexion exercises: BFR20, 20%1RM, 4 sets (30, 15, 15, 15 reps) wearing blood flow restriction cuffs around …

Mindfulness And Physical Activity As Moderators Of Behavioral Inhibition Sensitivity And Psychological Distress, Edward Silber

LSU Master's Theses

Framed in Reinforcement Sensitivity Theory, the current study examined the moderating effects of mindfulness and moderate-to-vigorous physical activity (MVPA) on the relationship between behavioral inhibition system (BIS) sensitivity and psychological distress. Participants (N=183) were college students at a large public university in the Southeastern United States. Data were collected using an online survey with self-report questionnaires that demonstrated acceptable reliability. Data analysis utilized multiple linear regression models to test study hypotheses. Findings revealed a significant positive relationship between BIS sensitivity and psychological distress, with mindfulness and MVPA significantly moderating this association. Specifically, increased reports of mindfulness and MVPA …

Metabolically Efficient Walking Assistance Using Optimized Timed Forces At The Waist, Prokopios Antonellis, Arash Mohammadzadeh Gonabadi, Sara Myers, Iraklis Pipinos, Philippe Malcolm

Journal Articles

The metabolic rate of walking can be reduced by applying a constant forward force at the center of mass. It has been shown that the metabolically optimal constant force magnitude minimizes propulsion ground reaction force at the expense of increased braking. This led to the hypothesis that selectively assisting propulsion could lead to greater benefits. We used a robotic waist tether to evaluate the effects of forward forces with different timings and magnitudes. Here, we show that it is possible to reduce the metabolic rate of healthy participants by 48% with a greater efficiency ratio of metabolic cost reduction per …

Effects Of Passive And Active Leg Movements To Interrupt Sitting In Mild Hypercapnia On Cardiovascular Function In Healthy Adults, Song-Young Park, Tesean Wooden, Elizabeth J. Pekas, Santosh K. Yadav, Dustin Slivka, Gwenael Layec

Health and Kinesiology Faculty Publications

Prolonged sitting in a mild hypercapnic environment impairs peripheral vascular function. The effects of sitting interruptions using passive or active skeletal muscle contractions are still unclear. Therefore, we sought to examine the vascular effects of brief periods (2 min every half hour) of passive and active lower limb movement to interrupt prolonged sitting with mild hypercapnia in adults. Fourteen healthy adults (24 ± 2 yr) participated in three experimental visits sitting for 2.5 h in a mild hypercapnic environment (CO2 = 1,500 ppm): control (CON, no limb movement), passive lower limb movement (PASS), and active lower limb movement (ACT) during …

The Effect Of Task And Environment Constraints On Aquatic Locomotor Behavior: Qualitative Data Analysis, Ernani Xavier Filho, Edison J. Manoel

International Journal of Aquatic Research and Education

Many constraints (environmental, organismic, and task) act on all patterns of motor coordination, although their effects on swimming is less well understood. To this end, we carried out the current study with fifty-six participants, ages ranging from six to twelve years. The experimental tasks were created from the original task in which changes in task speed and environmental context were manipulated. Four aspects in the results were notable: a) a main trend was one of performance with the same developmental status among the tasks; b) when behaviour changed, this occurred due to environmental constraints, leading to more rudimentary patterns of …

In This Issue (13:4), Stephen J. Langendorfer Ph.D.

International Journal of Aquatic Research and Education

Greetings, IJARE readers and welcome to the fourth issue of Volume 13. I admit being quite excited about this issue. It is jam-packed with outstanding papers from six different countries that deserve your readership and attention.

A Qualitative Report Of The Perceptions Of The Covid-19 Pandemic From Collegiate Student-Athletes, Dylan C. Rowe, Zachary K. Winkelmann Phd, Lat, Atc, Shawn M. Arent Ph.D., Cscs*D, Fissn, Facsm, Fnak, Michelle Angelique Arent Rd, Mph, Cscs, Cissn, Alexa Jenny Chandler, Nancy A. Uriegas, Toni Torres-Mcgehee Phd, Lat, Atc

Faculty Publications

Context

The COVID-19 pandemic led to an abrupt disruption in access to services and personnel for collegiate student-athletes in the spring and summer of 2020. We sought to identify the effects of this unprecedented change by examining the psychological well-being, changes to normal routines, and return-to-play considerations of current student-athletes in order to guide support for both current and future student-athletes who may face similar situations. Methods

We utilized a phenomenological approach to interview a purposeful sample of eighteen collegiate student-athletes (7 males, 11 females; mean age = 20 years) from across the United States. The participants were interviewed using …

Assessment Of Relationships Between External Load Metrics And Game Performance In Women’S Lacrosse, Libby Bynum, Ronald Snarr Jr., Bradley Myers 8931361, Jennifer A. Bunn

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 488-497, 2022. The purpose of this study was to analyse the relationship between external load metrics with game performance for Division I collegiate female lacrosse. Data were collected using microtechnology during 26 games with 13 athletes (attackers n = 5, midfielders n = 8). External load variables included: total distance (TD), distance rate (DR), high-intensity (HI) distance, speed, HI sprints, accelerations, decelerations, metabolic equivalent distance (MED), and sprints. For attackers, goals, points, shots, and shots on goal (SOG) had low, positive associations with TD (r = 0.32 to 0.42) and MED (r …

Evaluating Novel Methods Of Classifying Interlimb Asymmetries Within Collegiate American Football Players, Nicolas M. Philipp, Derek A. Crawford, Matthew J. Garver, H. Scott Strohmeyer

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 473-487, 2022. Over the last few years, researchers and sport scientists have expressed an increased interest in the effects of interlimb asymmetry on aspects of sport performance such as jumping, sprinting, and changing direction. This study aimed to evaluate the diagnostic utility of three different means of classifying asymmetry to highlight if a 6-week resistance training intervention can meaningfully reduce levels of asymmetry, and to determine the relation between asymmetry reduction and improvements in change of direction (CoD) performance, if any. Eighteen, division-two collegiate American football skill position players completed all pre- and post-intervention …

Acute Ingestion Of A Commercially Available Pre-Workout Supplement Improves Anaerobic Power Output And Reduces Muscular Fatigue, Sotiris Panayi, Andy Galbraith

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 455-472, 2022. The effect of a pre-workout supplement on anaerobic power output and muscular fatigue was examined. 18 participants took part in this double-blinded crossover study, reporting for testing on 3 occasions. Participants completed a 6x6 second repeated sprint test, with 20s recovery between sprints. Anaerobic power output was recorded as the highest power achieved during sprint test. Muscular fatigue was reported as a fatigue index across the six sprints ((maximum power – minimum power) ÷ total sprint time). During a baseline visit, participants consumed 250ml of water 30 minutes prior to testing, whilst …

High-Risk Environmental Conditions Attenuates Performance Efficiency Index In Ncaa Di Female Soccer Players, Maxine Furtado Mesa, Jeffrey R. Stout, David H. Fukuda, Michael J. Redd, Adam J. Wells

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 442-454, 2022. The purpose of this study was to evaluate the effects of environmental conditions on running performance and performance efficiency index (Effindex). Performance data recorded using Polar Team Pro sensors from eight collegiate female soccer players in nine matches were analyzed during the 2019 competitive season. Effindex and running performance, including total distance covered (TD_REL) and distance covered in five speed thresholds relative to minutes played, were examined for indications of fatigue with respect to environmental conditions, including ambient temperature and relative humidity. Matches were separated into three groups based on …