Exercise Science Commons^™

Circadian Rhythm Phase Shifts Caused By Timed Exercise Vary With Chronotype In Young Adults, J. Matthew Thomas

Theses and Dissertations--Kinesiology and Health Promotion

The circadian system controls 24-hour cycles of behavior and physiology, such as rest-activity and feeding rhythms. The human circadian system synchronizes with, or entrains to, the light/dark cycle (sunrise/sunset) to promote activity and food consumption during the day and rest at night. However, strict work schedules and nighttime light exposure impair proper entrainment of the circadian system, resulting in chronic circadian misalignment. Numerous studies have shown that chronic circadian misalignment results in poor health. Therefore, therapeutic interventions that could shift circadian rhythms and alleviate circadian misalignment could broadly impact public health. Although light is the most salient time cue for …

Longitudinal Descriptive Profile Of Collegiate Pitchers Participating In A Summer Baseball League, Isabelle Leslie Gillis

Theses and Dissertations--Kinesiology and Health Promotion

The purpose of this study was to provide a longitudinal profile of pitching performance in a cohort of pitchers over two collegiate seasons and a summer league. Thus, this study utilized a longitudinal design to evaluate the impact of summer league participation on subsequent collegiate regular season pitching performance. Specifically, the performance of a cohort of Division 1 collegiate baseball pitchers during the 2018 Spring collegiate season, 2018 Summer League season, and the 2019 Spring collegiate season was evaluated and stratified by pitcher designation, arm dominance, and academic status. Analyses of variance were used to identify main and interaction effects …

Effects Of Curcumin And Fenugreek Soluble Fiber Supplements On Submaximal And Maximal Aerobic Performance Indices In Untrained College-Aged Subjects, Jensen Goh Zhong Sheng

Theses and Dissertations--Kinesiology and Health Promotion

Submaximal exercise performance is, in part, limited by the accumulation of metabolic byproducts and energy system capacities. Curcumin and the combination of curcumin and fenugreek soluble fiber (CurQfen^®) have been shown to increase endogenous antioxidants and metabolic byproduct clearance as well as reduce inflammation and lipid peroxidation, and therefore, may enhance submaximal aerobic thresholds. In addition, there is evidence that the galactomannan component of fenugreek, used to enhance bioavailability of curcumin, may also have potential physiological effects related to the up regulation of free fatty acid oxidation Therefore, the purpose of this study was to examine the effects …

Effect Of Strength On Velocity And Power During Back Squat Exercise In Resistance-Trained Men And Women, Andrew T. Askow, Justin J. Merrigan, Jonathan M. Neddo, Jonathan M. Oliver, Jason D. Stone, Andrew R. Jagim, Margaret T. Jones

Faculty Scholarship

The purpose was to examine load-velocity and load-power relationships of back squat in resistance-trained men (n = 20, 21.3 ± 1.4 years, 183.0 ± 8.0 cm, 82.6 ± 8.0 kg, 11.5 ± 5.0% total body fat) and women (n = 18; 20.0 ± 1.0 years; 166.5 ± 6.9 cm; 63.9 ± 7.9 kg, 20.3 ± 5.0% body fat). Body composition testing was performed followed by determination of back squat 1 repetition maximum (1RM). After at least 72 hours of recovery, subjects returned to the laboratory and completed 2 repetitions at each of 7 separate loads (30, 40, 50, …

Changes On Movement Control Of Dart Throwing Under Distance And Target Weight Constraints, Carlos E. Campos, Guilherme M. Lage, Andre G.P. Andrade, Crislaine R. Couto, Suziane P. Santos, Vitor L.S. Profeta, Herbert Ugrinowitsch

Athletic Performance Research

The aim of the study was to verify the effects of dart weight and target distance on kinematic variables of the movement control of the underarm dart throwing task. Four women and one man performed the task of throwing a dart at two horizontal circular targets located at 2m (Nt) and 3m (Ft) away, with two different weights, 22g (Ld) and 44g (Hd). On the first phase of the experiment, the human volunteers performed 200 trials per day during four sessions. On the fifth day, it had 40 more trials in a pseudo random order that were recorded and analysed. …

Health & Nutritional Sciences Free Communication Day: Spring 2019 Plan B Abstracts, Viola Davies, Jonathan Shaeffer, Amy Hommes, Zachary Fehringer, Andrew Cheney, Alli Delay, Alyssa Finke, Kaitlin Reece, Jacob Elfmann, Maggan Froseth, Kala Nurnberg, Keith Thompson, David Andersen, Samantha Kratovil, Makenna Meier, Lezlie Pommer, Amanda Nack

Health and Nutritional Sciences Graduate Students Plan B Capstone Projects

This document contains Plan B abstracts presented by graduate students at the Health and Nutritional Sciences Free Communication Day, held on April 30th 2019.

Abstract titles include:

• Effect of supervised aquatic therapy and supervised land-based therapy on chronic low back pain.
• The College Football Recruiting Process and Ways to Improve It
• The Effects of Probiotics on Depression and Anxiety
• Arthroscopic Partial Meniscectomy versus Physical Therapy: Best Intervention to Improve Outcomes in Patients with Meniscal Tears?
• Does the inclusion of mental health education programs have an effect on the help seeking behavior of collegiate student-athletes?
• Establishing a Sustainable Nutrition Education Program …

Proprietary Milk Protein Concentrate Reduces Joint Discomfort While Improving Exercise Performance In Non-Osteoarthritic Individuals, Tim N. Ziegenfuss, Chad M. Kerksick, A. William Kedia, Jennifer Sandrock, Betsy Raub, Hector L. Lopez

Faculty Scholarship

Milk and dairy products are known to contain various bioactives with potential anti-inflammatory and immune modulating effects. Previous research has indicated that milk produced from hyperimmunized cows provided meaningful health benefits to individuals suffering from varying degrees of osteoarthritis and rheumatoid arthritis. PURPOSE: To examine the impact of a proprietary milk protein concentrate on joint discomfort and physical function, exercise performance, quality of life and various measures of affect. METHODS: Non-osteoarthritic men (42.5 ± 8.9 years, 176.7 ± 6.7 cm, 89.9 ± 11.5 kg, 28.8 ± 3.5 kg/m2, n = 30) and women (46.4 ± 9.6 years, 163.1 ± 8.2 …

Common Ingredient Profiles Of Multi-Ingredient Pre-Workout Supplements, Andrew R. Jagim, Patrick S. Harty, Clayton L, Camic

Faculty Scholarship

Multi-ingredient pre-workout supplements are a popular class of dietary supplements which are purported to improve exercise performance. However, the composition of these products varies substantially between formulations, thus making comparisons challenging. Therefore, the purpose of this study was to identify a common ingredient profile of top-selling pre-workout supplements and to compare ingredient dosages to established efficacious values. The top 100 commercially available pre-workout products were analyzed for listed ingredients and amounts, if available, from the supplement facts panel. The mean ± SD number of ingredients per supplement (n = 100) was 18.4 ± 9.7 with 8.1 ± 9.9 of these …

The Effects Of Concussion On Tandem Gait Performance With Secondary Cognitive Tasks, Angel Lomeli

Cal Poly Humboldt theses and projects

Identifying concussions occurs with a battery of cognitive and motor tests. However, these tests are performed independently as primary tasks. Research has demonstrated amplified motor differences due to concussion when performing simultaneous cognitive tasks (i.e. dual-tasks). The Tandem Gait Test (TGT) is used in concussion assessment and has only moderate sensitivity and specificity alone. The aim of this study was to determine the effect of concussion on TGT performance with secondary cognitive tasks. Six concussed participants (age 22.6 ± 2.8) and fourteen healthy participants (age 23.8 ± 2.7) were recruited through the North Coast Concussion Program within 13 days (7 …

Effects Of Adaptive Sports On Quality Of Life In Individuals With Disability, Victoria Reljin

Williams Honors College, Honors Research Projects

Purpose: The purpose of this study was to identify any correlation between quality of life and adaptive sport participation in individuals with disability. Methods: A questionnaire including the World Health Organization’s Quality of Life - BREF questionnaire and an adaptive sports impact questionnaire were electronically distributed to adults participating in an adaptive sport program. Athletes participating in the adaptive sport program’s wheelchair rugby team completed skill assessments that were examined for changes in physical domain. Results: All participants (n=11) rated their quality of life good or very good. Participants performed best in the environmental and physical domains of the WHOQOL-BREF. …

The Impact Of Flexibility On Balance In Rifle Athletes, Ileia Nagelkirk

Williams Honors College, Honors Research Projects

Research has shown that there may be a connection between flexibility and balance when evaluating fall risk in older adults and flexibility’s effect on a balance test (Emilio, Hita-Contreras, Jiménez-Lara, Latorre-Román, & Martínez-Amat, 2014); Overmoyer & Reiser, (2015). Balance is an important component of many sport movements, and has been shown to be particularly important in shooting performance in both novice and Olympic rifle athletes (Mononen, Konttinen, Viitasalo, Era, 2007; Ball, Best, Wrigley, 2003). The purpose of this study was to find if there was a relationship between a rifle athlete’s flexibility and their balance ability, to determine if flexibility …

Nutritional Content Of Mississippi Child Care Centers Participating In The Child And Adult Care Food Program: 1995 To 2019, Katelyn Marie Inserra

Honors Theses

Childhood obesity rates are increasing in the United States and the condition is more prevalent in the Southeast than in other areas of the country. Children who are obese or overweight during childhood have a much higher chance of remaining overweight throughout their lives, and the best way to combat child obesity is through influencing young children’s nutrition patterns. Many children spend a significant amount of time in childcare outside of their home, which may be responsible for providing adequate nutrition for at least two meals per day. This study evaluated the menus of Mississippi childcare centers participating in the …

Evaluation Of Acft Scores In Army Rotc Cadets, Calvin Britt

Theses and Dissertations

The purpose of this study was to evaluate the Army Combat Fitness Test (ACFT) and Army Physical Fitness Test (APFT) in U.S. Army Reserve Officer Training Corp (ROTC) cadets. Eighteen ROTC cadets volunteered to participate in the study (age; 21.9±3.4 years, height; 67.9 ± 3.1 in, weight; 165.3 ± 22.9 lbs., body fat percentage [BF%]; 16.3±7.4%). All participants performed two separate test sessions (APFT & ACFT) seven days apart, at the same time of day. Physiological data was collected for the ACFT using a Zephyr BioHarness monitoring device which included: physiological load (PL), physiological intensity (PI), maximal heart rate (MHR), …

Ultrasound Measured Flexor Muscle Thickness In The Forearms Of Rock Climbers, Michael Marsala

Electronic Theses and Dissertations

PURPOSE: To examine differences in the forearms of rock climbers using ultrasound to measure the muscle thickness of the finger flexors. METHODS: A total of 33 participants were recruited, 22 climbers (22.23 years; 68% male) and 11 controls (21.8; 55% male). Climbers provided self-reported ratings of their climbing ability, skill level, and preferred mode of climbing (e.g. sport climbing vs. bouldering). Anthropometric measures, including body fat percentage, were measured in all participants. Ultrasound measurements were taken with the participant lying on their back on a padded table with their dominant hand supinated. Muscle thickness measurements were taken at the forearm …

The Effect Of Interval Intensity On Time To Exhaustion During High Intensity Interval Training (Hiit) Running In Recreational Male Runners, Andrew M. Hahn

Cal Poly Humboldt theses and projects

High Intensity Interval Training (HIIT) has become extremely popular in recent years, however, current HIIT prescriptions lack guidelines regarding interval intensities and associated margins. The purpose of this study is to investigate Run Time to Exhaustion (Te) and provide insight regarding HIIT intensities for future aerobic exercise programming. Ten healthy adult male recreational runners (Age=22.9 ± 2.5 yr., Ht=1.72 ± 0.1m, BM=74.1 ± 7.4 kg) measured maximal oxygen consumption (VO2max) (52.4 ± 6.1ml/kg/min) with a graded exercise test (GXT). Running speed was determined using ACSM running equation for exercise metabolism. Protocols 1-3 were HIIT running sessions, and Protocol 4 was …

Application Of The Predicted Repetitions-To-Failure Perceived Exertion Scale For The Nfl-225lb Bench Press Test, Anthony G. Ratto

Cal Poly Humboldt theses and projects

PURPOSE: To assess how accurately Division II NCAA football players can predict repetitions-to-failure (RTF) during the bench press exercise using an absolute load of 225-lbs by comparing predicted repetitions-to-failure with actual repetitions-to-failure. METHODS: Twenty football players (age 20 ± 2 years; height 1.85 ± .06 m; weight 110.1 ± 19.3 kg) without muscular or skeletal injuries were tested for their 1repetition maximum (1-RM) in the bench press, and then performed 1 set to concentric failure with 225-lbs. Subjects predicted how many repetitions they could perform after the warm-up and again after the fourth, eighth, twelfth repetitions. A general regression analysis …

Player-Coach Perceptions Of Internal Load, Exertion, And Recovery In Collegiate Male Soccer Players, Michelle L. Eisenman

College of Graduate Studies: Theses & Dissertations

Periodization of athlete training load to improve performance and maximize recovery, while reducing injuries and overtraining, is essential in team sports. Understanding internal load responses and monitoring athlete exertion and recovery can help coaches during a competitive season. Recovery Status (PRS) and Rating of Perceived Exertion (RPE) are two subjective scales used to help quantify training load and recovery. These scales are more useful if there is an agreement between coaches (C) and players (P) assessment of intensity and recovery. PURPOSE: To assess subjective measures (PRS and RPE scores) from P and C during a 13-week competitive soccer season. Furthermore, …

The Effects Of Acute Exercise Intensity On Episodic Memory And False Memory, Emma Kate Dilley

Honors Theses

Previous experimental work demonstrates that acute exercise may enhance episodic memory performance. However, limited research has examined the extent to which acute exercise influences false memory production, and no studies, to date, have examined whether there is an intensity-specific effect of acute exercise and true and false memories. Thus, the present experiment evaluated the effects of acute exercise on episodic memory and false memory. A three-arm, parallel, between-group randomized controlled trial was employed, with participants (Mage = 20.8 years) randomized into a moderate-intensity exercise group (15-minute bout of treadmill exercise at 50% Heart Rate Reserve; N = 20), a high-intensity …

Contralateral Repeated Bout Effect Of The Elbow Flexors Not Observed In Young Women, Bailey Brown

Honors Theses

The contralateral repeated bout effect (CL-RBE) is known as a protective effect in which an initial bout of eccentric exercise reduces muscle damage in the contralateral limb after a similar bout of eccentric exercise. To our knowledge, previous studies on CL-RBE only recruited males or a mixture of both sexes. PURPOSE: To investigate the presence of the CL-RBE of the elbow flexors in women. METHODS: Twelve healthy women (20.9 ± 2.5 years) performed two bouts of 45 maximal eccentric contractions (ECC) of the elbow flexors using the opposite arm separated by 14 days. The isokinetic muscle strength (60°/sec) was measured …

An Evaluation Of Induced Shear Stress On Endothelial Cellular Adhesion Molecules, Edward B. Crabb

Theses and Dissertations

The pathophysiology of atherosclerotic cardiovascular disease (CVD) is highlighted by vascular dysfunction and low-grade vascular inflammation. Furthermore, the site-specific distribution of atherosclerosis throughout the arterial vasculature is primarily determined by local hemodynamic force. Therefore, this dissertation outlines three experiments designed to investigate the role of acute mental and physical (i.e., aerobic exercise), and vascular wall shear stress (SS) on the inflammatory aspects of atherosclerosis. Chapter 2 examines the effect of acute laboratory-induced mental stress on intracellular pro-inflammatory signaling pathways in peripheral blood mononuclear cells. Chapter 3 investigates the impact of acute laboratory-induced mental stress and maximal aerobic exercise on the …

Physical Fatigue Negatively Affects Decision-Making During A Closing-Gap Aperture Crossing Task When Using Joystick-Controlled Locomotion, Natalie Snyder

Theses and Dissertations (Comprehensive)

Goal-direct locomotion is made possible through the integration of sensory input from the visual, vestibular, and somatosensory system. However, changes in collision avoidance behaviours and action capabilities (i.e., affordances) may occur when a sensory conflict is introduced (i.e., via incongruent input from a sensory system). Further, changes to the person (such as physical fatigue) may have negative implications on the cognitive abilities of an individual following physically fatiguing exercise. This in turn could affect an individual’s ability to avoid collisions with objects or other individuals in their environment. Thus, the objective of this thesis was to explore how physical fatigue …

The Role Of The Midfoot In Drop Landings, Mark T. Olsen, Dustin A. Bruening, A. Wayne Johnson, Sarah T. Ridge

Faculty Publications

Purpose: The midfoot is instrumental to foot function; however, quantifying its roles in human movement has been difficult. A forceful dynamic activity like landing may help elucidate the midfoot’s contribution to foot energetics and function. The main purpose of this study was to measure midtarsal joint kinematics and kinetics during a barefoot single-leg landing task. A secondary aim of this study was to explore the relationship between static foot posture and dynamic midfoot function.

Methods: In a cross-sectional study design, 48 females (age = 20.4 ± 1.8 yr, body mass index = 21.6 ± 1.7 kg/m) performed drop landings from …

Acute Effects Of Ballistic And Non-Ballistic Bench Press On Plyometric Push-Up Performance, David Bodden, Timothy J. Suchomel, Alexandra Lates, Nicholas G. Anagnost, Matthew F. Moran, Christopher Taber

Exercise Science Faculty Publications

The purpose of this study was to examine the effects of a ballistic or non-ballistic concentric-only bench press (COBP) on subsequent plyometric push-up performance. Fourteen resistance trained men completed two separate one-repetition-maximum (1RM) testing sessions followed by three randomized experimental explosive push-up sessions. These sessions combined a heavy concentric bench press with plyometric push-ups. Using a series of 3 × 10 (condition × time) repeated measures ANOVA, comparisons were made between the effects of ballistic and non-ballistic bench presses on performance of plyometric push-ups to investigate push-up performance variables. Compared with the control condition, both ballistic and non-ballistic bench presses …

Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise, Richard T. Marcello, Lucas Fortini, Beau K. Greer

Exercise Science Faculty Publications

The purpose of the present study was to investigate the influence of intermittent pneumatic compression (IPC) boot use between submaximal cycling trials on heart rate (HR) and blood lactate concentrations. Ten healthy participants (9M; 1F) performed two consecutive 60 minute rides at 60% of functional threshold power with a 30 minute rest between rides. The rest period was spent in a supine position using IPC boots (BOOT) or sitting in a similar position without boots (CON). HRs were collected every 15 minutes during cycling rides, and lactate was measured at the 30-minute mark during both rides. An identical trial was …

Exploring The Potential Neuromuscular Adaptations Associated With Sprint Interval Training, Samer Hassan

Theses and Dissertations (Comprehensive)

Purpose. The primary purpose of this study was to explore the acute (a single sprint interval training or SIT exercise session) and chronic (3 weeks of SIT) neural adaptations that may occur with the SIT (30 second sprint and 4 minutes of rest).

Methods. 28 recreationally active participants were pseudo-randomized into either a control group (CTRL) or training group (TR) and tested at 4 time points after baseline VO_2max testing. Participants were tested, pre-training/pre-fatigue, pre-training/post-fatigue, post-training/pre-fatigue, post-training/post-fatigue. The fatigue protocol was a SIT session (4 x 30-s sprints). The TR completed a 3-week running SIT protocol (3x/wk) progressing …

Does Exercise Impact Gut Microbiota Composition In Men Receiving Androgen Deprivation Therapy For Prostate Cancer? A Single-Blinded, Two-Armed, Randomised Controlled Trial, Robert U. Newton, Claus T. Christophersen, Ciaran M. Fairman, Nicolas H. Hart, Dennis R. Taaffe, David Broadhurst, Amanda Devine, Raphael Chee, Colin I. Tang, Nigel Spry, Daniel A. Galvão

Research outputs 2014 to 2021

Introduction: A potential link exists between prostate cancer (PCa) disease and treatment and increased inflammatory levels from gut dysbiosis. This study aims to examine if exercise favourably alters gut microbiota in men receiving androgen deprivation therapy (ADT) for PCa. Specifically, this study will explore whether: (1) exercise improves the composition of gut microbiota and increases the abundance of bacteria associated with health promotion and (2) whether gut health correlates with favourable inflammatory status, bowel function, continence and nausea among patients participating in the exercise intervention.

Methods and analysis: A single-blinded, two-armed, randomised controlled trial will explore the influence of a …

Incidence Of Responders Vs Non-Responders With Sprint Interval Training, Kyle Schulhauser

Theses and Dissertations (Comprehensive)

The current study examined the incidence of non-response to a traditional 30:240 s sprint interval training (SIT) protocol, as well as for 2 modified SIT protocols of 15:120 s, and 5:40 s over 4 wk of training in 84 recreationally active males and females (52m, 32f). Pre- and post- testing measures included: aerobic capacity (V̇O_2max), aerobic performance (5-km time trial), and anaerobic capacity (30 s sprint). Non-response was determined using 2x typical error for each variable. Chi square analysis indicated a significant difference (P = 0.032) in the frequency of non-responders for aerobic performance where the 30:240 group …

Physical Therapist Views And Experiences With Patient Use Of Marijuana, Arturo De La O Basurto Jr.

Cal Poly Humboldt theses and projects

Conditions seen within physical therapy settings overlap with reasons that patients seek marijuana. For this reason, information about these professionals’ outlooks on patients’ marijuana use in prime. Purpose: Gain current views and experiences of physical therapists (PTs)/physical therapist assistants (PTAs) on their patients’ use of marijuana in the physical therapy field. Methods: PTs/PTAs were invited to complete an anonymous survey asking relative PT/PTA views, experiences, and understanding of patients’ marijuana use. Results: PTs/PTAs who have had experience (did not have experience) with patients who use marijuana received information about marijuana from news media - 61% (60%), patients …

Pengaruh Latihan Squat Menggunakan Free Weight Dan Gym Machine Terhadap Kekuatan, Power, Dan Hypertrophy Otot, Lia Karina Mansur, Joko Pekik Irianto, Mansur Mansur

Jurnal Keolahragaan

Penelitian ini bertujuan untuk menguji pengaruh latihan squat menggunakan free weight dan gym machine terhadap kekuatan, power, dan hypertrophy otot; dan menguji perbedaan pengaruh latihan squat menggunakan free weight dan gym machine terhadap kekuatan, power, dan hypertrophy otot. Penelitian ini adalah penelitian eksperimen dengan desain two group pretest-posttest design. Sampel dalam penelitian ini dipilih berdasarkan teknik random sampling berjumlah 32 orang. Instrumen untuk mengukur kekuatan menggunakan back and leg dynamometer merk Takei buatan Jepang. Instrumen untuk mengukur power menggunakan Jump Duration of Fright (JDF) seri TKK 5114 buatan Jepang, satuan sentimeter. Instrumen untuk mengukur lingkar otot paha …

Psychological Effects And Treatment Of An Injury On An Athlete: Suggested Treatment Plan For Athletic Trainers And Physical Therapist, Odell Miller

Honors Theses

Injuries that force athletes to lose participation in their sport and or training have a tremendous impact on their mental health. Mental health issues can be detrimental, but often times go unnoticed. For example in 2010, Kenny McKinley, a wide receiver for the Denver Broncos, was found dead after killing himself with a gun. After suffering a knee injury, he had become progressively depressed. Investigators reported that there are statements saying that McKinley didn’t know what he would do without football. According to NCAA’s Sports Science Institute (2017), the psychological response to injury can trigger mental health issues such as: …