Exercise Physiology Commons^™

Sit Less, Move More: A National Study Of Physical-Activity Behavior And Cancer, Stella O. Nwogugu

Dissertations, Theses, and Capstone Projects

Background: Physical activity is associated with lower risks of cancer, the second leading cause of death among Americans. Yet, sedentary behavior is the prevailing lifestyle for about 80% of American adults. Additionally, cancer survivors remain significantly inactive, even though physical activity has been shown to decrease risk of cancer and cancer recurrence, improve tolerance of cancer therapy, and reduce mortality. This research explores the relative impact of personal agency, social support, and key demographic variables on physical-activity behavior for a national sample of adults as well as how these relationships differ for cancer survivors and their counterparts.

Methods: Using the …

The Acute Effects Of Ischemic Preconditioning On Short-Duration Cycling: A Randomized Crossover Study, Cassidy R. Nelson, Colten R. Brand, Matthew R. Chitty, Chad B. Birger, Shane D. Scholten

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 148-158, 2023. There is recent interest from coaches and athletes regarding IPC as an effective way to generate better competitive outcomes. Regarding cycling specifically, the impact of IPC remains unclear. This study aimed to assess the effectiveness of IPC treatment for improving athletic performance during short-duration cycling. After the exclusion and inclusion criteria, there were 11 volunteers for the 3-minute cycling TT and 13 volunteers for the 6-minute cycling TT. All volunteers were competitive athletes of aerobic sports. The IPC treatment consisted of three alternating cycles of 5 minutes of 100% occlusion followed by …

Do Female University Varsity Athletes Have A Greater Risk Of Injury Within A Competitive Varsity Season?, Aidan K. Comeau, Eric C. Parent, Michael D. Kennedy

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 129-147, 2023. Previous varsity sport injury research has analyzed how acute and chronic injury severity, type, and location differs between sport and sexes, with limited research in time to injury. Canadian university varsity sport injury research is especially sparse and mostly retrospective. Thus, we aimed to understand injury differences in male and female competitive university athletes competing in the same sport. Athletes who competed on the basketball, volleyball, soccer, ice hockey, football (male), rugby (female), and wrestling teams were eligible for the study. There were 182 male and 113 female athletes who provided informed …

Acute Blood Flow Responses To Varying Blood Flow Restriction Pressures In The Lower Limbs, Bjoern Hornikel, Keith S. Saffold, Jacob A. Mota, Michael R. Esco, Michael V. Fedewa, Stefanie A. Wind, Lee J. Winchester

International Journal of Exercise Science

International Journal of Exercise Science 16(2): 118-128, 2023. The purpose of this study was to investigate lower limb blood flow responses under varying blood flow restriction (BFR) pressures based on individualized limb occlusion pressures (LOP) using a commonly used occlusion device. Twenty-nine participants (65.5% female, 23.8 ± 4.7 years) volunteered for this study. An 11.5cm tourniquet was placed around participants’ right proximal thigh, followed by an automated LOP measurement (207.1 ± 29.4mmHg). Doppler ultrasound was used to assess posterior tibial artery blood flow at rest, followed by 10% increments of LOP (10-90% LOP) in a randomized order. All data were …

A Pilot Study On Cannabidiol (Cbd) And Eccentric Exercise: Impact On Inflammation, Performance, And Pain, Whitley J. Stone, Danilo Tolusso, Guillermo Pacheco, Shea M. Brgoch, Van T. Nguyen

International Journal of Exercise Science

International Journal of Exercise Science 16(2): 109-117, 2023. Cannabidiol (CBD) is a non-psychoactive cannabinoid purported to reduce symptoms of discomfort. Individuals are now using CBD to treat symptoms of multiple sclerosis, seizures, and chronic pain. Animal models indicate that CBD may be effective at reducing inflammation post fatiguing exercise. However, little evidence is available to evaluate these findings in humans. Therefore, the purpose of this investigation was to evaluate the impact of two doses of CBD oil on inflammation (IL-6), performance, and pain after an eccentric loading protocol. Participants (n = 4) participated in three conditions (placebo, low dose, …

Effects Of Acute Exercise On Affect In Females With Substance Use Disorder, Victoria A. Torok, Christi B. Brewer, Hayley N. Lake

International Journal of Exercise Science

International Journal of Exercise Science 16(5): 95-108, 2023. Negative mood states experienced during the withdrawal stage of substance dependence have been associated with relapse in persons suffering from substance use disorder (SUD). Exercise is gaining attention as an adjunct therapy for SUD due to its ability to alleviate negative mood states experienced during withdrawal. The purpose of this study was to investigate the effects of acute, controlled bouts of aerobic and resistance exercise versus sedentary control (quiet reading) on positive affect (PA) and negative affect (NA) in females undergoing SUD treatment at inpatient facilities. Females (n=11; 34 + 8 yrs) …

Improvements In Flexibility Depending On Stretching Duration, Konstantin Warneke, Klaus Wirth, Michael Keiner, Stephan Schiemann

International Journal of Exercise Science

International Journal of Exercise Science 16(4): 83-94, 2023. To improve flexibility, stretching is most commonly used and in training interventions duration-dependent effects are hypothesized. However, there are strong limitations in used stretching protocols in most studies, particularly regarding documentation of intensity and performed procedure. Thus, aim of this study was to compare different stretching durations on flexibility in the plantar flexors and to exclude potential biases. Eighty subjects were divided into four groups performing daily stretching training of 10min (IG10), 30min (IG30) and 1h (IG60) and one control group (CG). Flexibility was measured in bended and extended knee joint. Stretching …

The Relationship Between Health And Movement Screens And Field-Based Physical Fitness Tests In Reserve Officer Training Corps Students, Lukas Krumpl, Nickolai J. P. Martonick, Youngmin Chun, Ann F. Brown, Joshua P. Bailey

International Journal of Exercise Science

International Journal of Exercise Science 16(4): 42-52, 2023. The purpose of the present study was to evaluate the relationship between scores achieved in physical fitness tests and outcomes of health and movement screens (HMS) in ROTC students. Twenty-eight students (20 males: 21.8 yrs [± 3.4] & 8 females: 20.7 yrs [± 1.8]) enrolled in an ROTC branch (Army, Air Force, Navy, or Marines) completed a series of screens, including body composition analysis via Dual-Energy X-Ray Absorptiometry (DXA), balance and functional movement tasks via a lower-quarter Y-Balance test, and knee and hip joint concentric strength testing on an isokinetic dynamometer. Official …

The Effects Of Anabolic-Androgenic Steroids On Gene Expression In Skeletal Muscle: A Systematic Review, Luke M. Pelton, Stephen A. Maris, Joshua Loseke

International Journal of Exercise Science

International Journal of Exercise Science 16(3): 53-82, 2023. Anabolic-androgenic steroids (AAS) act via androgen receptor (AR) interaction to induce muscle protein synthesis. This process is achieved via altered gene expression via the Notch, Wnt, and Numb pathways and their interactions at the AR, manifesting in key skeletal muscle (SM) phenotypes such as morphology, ion conductance, and functionality. This review aims to report on the effects of AAS administration on gene expression in SM. Peer-reviewed empirical studies evaluating AAS administration on SM phenotypes and gene expression were considered for inclusion. The following databases were searched using a data range of Jan …

The Relationship Between Cognition, Preseason Hitting Assessments, And In-Game Batting Performance In Collegiate Baseball And Softball Players, Amanda Carrol, Tonya Krupp, Kara Tucker, Nicholas J. Siekirk, Bradley J. Kendall

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 23-30, 2023. Successful hitting performance may be related to perceptual processing of visual information. The purpose of this investigation was to examine the relationship between preseason cognitive assessments, off-field preseason hitting assessment, and in-game batting performing in collegiate baseball and softball athletes. Collegiate varsity baseball (n = 10, 20.5 ± 1.0 years) and softball (n = 16, 20.3 ± 1.3 years) underwent Flanker Task and Trail Maker Tests A (TMT-A) and B (TMT-B) 24 hours prior to a pre-seasoning indoor hitting assessment. During pre-season hitting assessment, athletes selected 10 underhand pitches and …

Prediction Of Rowing Functional Threshold Power Using Body Mass, Blood Lactate And Gxt Peak Power Data., Eanna Mc Grath, Bernard Donne, Nicholas Mahony, Neil Fleming

International Journal of Exercise Science

International Journal of Exercise Science 16(4): 31-41, 2023. Functional Threshold Power (FTP) is a validated index of a maximal quasi steady-state cycling intensity. The central component of the FTP test is a maximal 20-min time-trial effort. A model to predict FTP from a cycling graded exercise test (m-FTP) was published that estimated FTP without the requirement of the exhaustive 20-min time-trial. The predictive model (m-FTP) was trained (developed to find the best combination of weights and bias) on a homogenous group of highly-trained cyclists and triathletes. This investigation appraised the external validity of the m-FTP model vis-à-vis the alternate modality …

Enhancing The Quality Of Life For Senior Citizens: A Facilitator’S Guidebook For Mindful Music And Movement, Shannon Sexton

Mindfulness Studies Theses

Music appreciation and enjoyment enhance well-being throughout the lifespan. The challenges and constraints that people experience as they age can lead to lack of access to music, decreased physical activity, and fewer avenues for creative expression. Group music and movement interventions created for older populations offer opportunities for social connection and improved quality of life. Mindful practices add further benefit when combined with these interventions. Current available programs are scarce and most often do not encompass mixed modalities. In addition, the benefits of these programs do not show long-term sustainability. The purpose of this thesis is to explore the effects …

A Comparison Of Muscle Recruitment Across Three Straight-Legged, Hinge-Pattern Resistance Training Exercises, Jeremy R. Dicus, Samuel H. Ellestad, Jesse E. Sheaffer, Carol A. Weber, Noah C. Novak, Michael E. Holmstrup

International Journal of Exercise Science

International Journal of Exercise Science 16(4): 12-22, 2023. Hinge exercises are critical to building a balanced resistance training program in concert with ‘knee-dominant’ (e.g., squat, lunge) exercises. Biomechanical differences between various straight-legged hinge (SLH) exercises may alter muscle activation. For example, a Romanian deadlift (RDL) is a closed-chain SLH, while a reverse hyperextension (RH) is open-chain. Likewise, the RDL offers resistance via gravity while the cable pull-through (CP) offers redirected-resistance through a pulley. A deeper understanding of the potential impact of these biomechanical differences between these exercises may improve their application to specific goals. Participants completed repetition-maximum (RM) testing on …

How Did Participating In A Prenatal Nutrition And Exercise Program Influence Postpartum Experiences During Covid-19?, Rozhan Momen, Maya Weinreich, Taniya S. Nagpal, Michelle F. Mottola

International Journal of Exercise Science

International Journal of Exercise Science 16(3): 1-11, 2023. Lifestyle interventions focusing on prenatal physical activity (PA) and healthy nutritional habits can carry forward into the postpartum period. As many health resources, like PA facilities and postpartum support groups, were inaccessible due to the Coronavirus-19 (COVID-19) pandemic restrictions, it may be plausible that individuals who participated in a prenatal lifestyle intervention continued engaging in positive health behaviours on their own. This study explored experiences of postpartum individuals during the pandemic who had engaged in a prenatal PA and nutrition program prior to COVID-19. Semi-structured interviews were completed with postpartum individuals following …

Reliability And Validity Of A Commercial Running Power Meter To Indicate Metabolic Workload During Endurance Running, James Harris Hudgins Iii

Theses and Dissertations--Kinesiology and Health Promotion

Commercial running power (RP) meters may provide endurance runners and coaches with improved precision for monitoring running intensity. Cyclists rely upon the relationship between cycling power and metabolic demand to regulate physiological intensity during training and racing, independent of changes in the physical environment (e.g., terrain, wind). Research demonstrates strong reliability and validity for a specific RP meter to indicate metabolic demand within controlled running conditions. However, several potential influences on this relationship have not been investigated. Therefore, four studies were conducted with the following aims:

- Study 1: Determine the inter-limb reliability and validity of a single-limb-based RP meter …

Changes In Running Biomechanics In Master Runners Over Age 50: A Systematic Review, Matthew Klein, Chris Patterson

Faculty Publications - College of Physical Therapy

The number of individuals over 50 years of age participating in recreational and competitive running has increased over the past ten years. It has been established that older runners experience a reduction in strength and power. These changes may contribute to different running biomechanics from younger runners. The pur-pose of this study was to synthesise the current evidence on run-ning biomechanical differences in the lower extremity between masters runners over 50 years and younger runners under 40 years. The systematic data search included CINAHL, MEDLINE, and SPORTDiscus databases. Fourteen cross-sectional studies that com-pared lower extremity biomechanics of masters runners to …

A Comparison Of Barriers To Traditional And Home-Based Cardiopulmonary Rehabilitation Participation: Potential Implications For The Maintenance Phase, Erin Rose Madison

Graduate Student Theses, Dissertations, & Professional Papers

Cardiac rehabilitation provides medically supervised therapeutic exercise and multifaceted risk factor modification as a form of secondary prevention for cardiovascular disease, a persistent leading cause of morbidity and mortality in the United States and internationally. Despite robust evidence of compelling patient outcomes, decreased disease recurrence, and the indications from the ACC/AHA endorsing phase II cardiac rehabilitation (CR) as a crucial aspect of recovery from cardiac events and qualifying conditions, CR is widely underutilized. A variety of patient barriers can serve as mitigating factors to CR referral, enrollment, participation, and completion contributing to, in part, the underutilization of CR. Barriers to …

The Effect Of A 5-Week Concurrent Training Program On Acft Scores, Ruck March Times, And Aerobic Capacity In Army Rotc Cadets, Cody Durbin

Dissertations and Theses @ UNI

Most Army ROTC programs conduct physical training (PT) only 3 days per week and no study has directly compared the effects of conducting PT 5 days per week on ACFT scores, ruck march performance, and aerobic capacity. Past research has indicated greater performance adaptations with a concurrent training program and some research has shown that current ROTC PT programs may not be optimal in physically preparing ROTC cadets. Purpose: To examine the effectiveness of a 5-day per week periodized tactical strength and conditioning program on ACFT scores, and aerobic capacity in Army ROTC cadets. Methods: Eight ROTC cadets from UNI …

The Physiological And Psychological Performance Effects Of Multi-Ingredient Pre-Workout Supplements In Females During Resistance Training, Mariah L. Snyder

EWU Masters Thesis Collection

In recent years, the use of supplements to aid resistance training performance has increased, particularly through the consumption of multi-ingredient pre-workout supplements (MIPS). However, limited research exists regarding the efficacy of MIPS on physiological and psychological performance in resistance-trained females.

PURPOSE: To determine the physiological and psychological performance effects of MIPS compared to a placebo and caffeine-only supplement in resistance-trained females.

METHODS: Resistance-trained females (n=10) volunteered for the study. One-repetition maximum (1RM) was established at baseline for leg press (LP) and bench press (BP). A within-groups, double-blind, randomized, and counterbalanced design was used to assign the four supplement drinks (i.e., …

The Association Of Vitamin D, Bone Mineral Density, And Injuries Among Acrobatics And Tumbling Athletes, K Lee, A Gallucci, J Forsse, L Cherpe De Souza, L Irvin, E Boyer, L Funderburk

Clinical Practice in Athletic Training

Introduction: Acrobatics and Tumbling (A&T) is an emerging sport incorporating various elements of gymnastics and competitive cheerleading. Anecdotal evidence suggests that the sport presents with high injury rates potentially due to the high impact nature of the activity. Due to the potential aesthetic sport related concerns, bone mineral density and risk of injury presents a concern for patients, athletic trainers and stakeholders. Increased understanding of the relationship between bone mineral density, serum vitamin D status, and injury incidence in A&T may be useful to athletic trainers, registered dietitians, and others working with these athletes. The objective of this study was …