Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 28 of 28

Full-Text Articles in Life Sciences

Teachers' Guide To Scott Chantler's Mini Comic "All Stars: The True Story Of The 1934 Chatham Coloured All-Stars", Heidi Jacobs, Dale Jacobs, Miriam Wright May 2019

Teachers' Guide To Scott Chantler's Mini Comic "All Stars: The True Story Of The 1934 Chatham Coloured All-Stars", Heidi Jacobs, Dale Jacobs, Miriam Wright

Telling the Stories of Race and Sports in Canada

This Teachers' Guide is intended to accompany Scott Chantler's mini comic "All Stars: the True Story of the 1934 Chatham Coloured All-Stars." This comic and teachers' guide were produced as part of the Telling the Stories of Race and Sports in Canada project, funded by a SSHRC Connections Grant and supported by the University of WIndsor, the Chatham Kent Black Historical Society and the Essex County Black Research Society.


Upper Extremity Performance Changes In Division Iii Collegiate Swimmers Over A Competitive Season, Tyler Mansfield, Morgan Barnard, Liz Mayio Apr 2019

Upper Extremity Performance Changes In Division Iii Collegiate Swimmers Over A Competitive Season, Tyler Mansfield, Morgan Barnard, Liz Mayio

Student Symposium

Collegiate swimmers and coaches are always looking to improve athletic performances. Shoulder strength and shoulder flexibility are two factors that may correlate improved performance throughout a season. The purpose of this study was to analyze the changes in shoulder strength and ROM over the course of a collegiate season. Thirty-four collegiate swimmers (males =15, females =19, age =19.38 ± 1.26 years, height = 1.76 ± 0.098m, mass = 73.55 ± 12.66kg) were assessed during the pre-season and post-season in shoulder strength and ROM. Athletic performance was assessed and quantified by determining the amount of personal bests each athlete swam ...


Comparison Of Two Different Stretching Interventions On Glenohumeral Range Of Motion Of Overhead Athletes, Jackson Brownstein Apr 2019

Comparison Of Two Different Stretching Interventions On Glenohumeral Range Of Motion Of Overhead Athletes, Jackson Brownstein

Student Symposium

The baseball throwing motion repetitively creates large forces on the shoulder and elbow as the arm dynamically moves through susceptible end-range positions. Many retrospective studies have demonstrated relationships between a decrease in shoulder ROM and shoulder injuries, such as labral tears and impingement syndrome. In collegiate baseball players, poor shoulder ROM increases the likelihood of experiencing overuse symptoms during the season. The question often asked by coaches is how to best improve shoulder ROM in players that have had prior problems with overuse injuries. Understanding the differences between dynamic and passive flexibility routines have on improving shoulder mobility within a ...


The Relationship Of Lower Extremity Range Of Motion And Incidence Of Shin Splints In Collegiate Runners: A Pilot Study, Megan Sievers Apr 2019

The Relationship Of Lower Extremity Range Of Motion And Incidence Of Shin Splints In Collegiate Runners: A Pilot Study, Megan Sievers

Student Symposium

Shin splints have become a routine diagnosis provided by medical professionals as a way of generalizing pain in the lower leg. This injury is especially common in the sport of track and field accounting for about half of all overuse injuries in the lower leg. Despite its prevalence in runners, the exact cause of pain is unknown. Research shows conflicting evidence over certain anatomical factors that could be generating pain in the lower extremity; among which could be deficiencies in dorsiflexion and hip range of motion (ROM). If anatomical discrepancies exist, the athletes could be at a higher risk of ...


Passive Vs. Dynamic: The Ideal Stretch, Jackson Brownstein Apr 2019

Passive Vs. Dynamic: The Ideal Stretch, Jackson Brownstein

Student Symposium

No abstract provided.


Comparison Of Heart Rate Intensity In Practice, Conditioning, And Games In Ncaa Division I Women Basketball Players, Courtney Elliott, Casey Pederson, James Hutson Apr 2019

Comparison Of Heart Rate Intensity In Practice, Conditioning, And Games In Ncaa Division I Women Basketball Players, Courtney Elliott, Casey Pederson, James Hutson

Undergraduate Research Conference

Background: An athlete’s heart rate (HR) is an important variable in quantifying the intensity of exercise. Workouts that increase HR are an important stimulus for training adaptations and conditioning. At other times, workouts that do not overly stress the HR may be desired to allow for recovery. The principle of specificity emphasizes that athletes should train specific to the way they will need to perform in competition. Because of this, monitoring HR during training and competition can be a useful tool. While exercise intensity in endurance sports has been previously investigated, less is known regarding the HR response in ...


Impact Of Heart Rate Intensity On Shooting Accuracy During Games In Ncaa Division I Women Basketball Players, James Hutson, Courtney Elliott, Casey Pederson Apr 2019

Impact Of Heart Rate Intensity On Shooting Accuracy During Games In Ncaa Division I Women Basketball Players, James Hutson, Courtney Elliott, Casey Pederson

Undergraduate Research Conference

Shooting accuracy in basketball is key to winning games. While there are various factors as to why a team either makes or misses their shots, the intensity of play is likely a contributing factor. A player who has played the majority of the game would likely have a higher, more intense heart rate (HR). Depending on the athlete, this could impact shooting accuracy. Examining the relationship between HR intensity and shooting accuracy has not been looked at in a real game setting before. Therefore, we set out to determine the impact heart rate intensity has on shooting accuracy in a ...


The Relationship Between Objective And Subjective Markers Of Training Stress In Ncaa Division I Women Basketball Players, Casey Pederson, Courtney Elliott, James Hutson Apr 2019

The Relationship Between Objective And Subjective Markers Of Training Stress In Ncaa Division I Women Basketball Players, Casey Pederson, Courtney Elliott, James Hutson

Undergraduate Research Conference

An athlete’s training stress score (TSS) is an objective marker of overall training volume and can be determined by tracking total time spent at specific heart rate (HR) zones. Additionally, an athlete’s power factor (PF) or explosive strength is an important marker of performance and can be measured objectively with power testing equipment. While these measures of training stress and performance are important, a coach with limited resources may not have access to the equipment or expertise to measure these variables. On a subjective level, perceived recovery status (PRS) prior to practice and the rating of perceived exertion ...


Effects Of Caffeine On High-Intensity Functional Training Performance, Melitza Ramirez, Jesse Stein, Katie Heinrich Apr 2019

Effects Of Caffeine On High-Intensity Functional Training Performance, Melitza Ramirez, Jesse Stein, Katie Heinrich

Kansas State University Undergraduate Research Conference

Caffeine demonstrates an ergogenic effect on endurance exercise performance, however, its efficacy during high-intensity functional training (HIFT) is unknown. HIFT is an exercise program that incorporates a variety of multi-joint movements performed at a relatively high-intensity and designed to improve parameters of general physical fitness and performance. Our study aimed to determine the effects of caffeine on HIFT performance. Thirteen HIFT-trained men (age = 28.5±6.6 years, HIFT experience = 4.1±3.0 years, body weight= 84.3±9.9 kg) were randomized in a double-blind, crossover design. After consent, participants completed two HIFT sessions separated by a 7-day ...


Fresh Start: A Program To Promote Physical Activity Among College Freshmen, Mia Taylor Apr 2019

Fresh Start: A Program To Promote Physical Activity Among College Freshmen, Mia Taylor

Kansas State University Undergraduate Research Conference

Fresh Start: A Program to Promote Physical Activity Among College Freshmen

Mia Taylor, Emily Mailey, Eryn Coates, Jerica Garcia,

Hailey Hunter, Courtney Moore

Department of Kinesiology

College of Human Ecology

Physical activity levels tend to decline as students transition from high school to college, and freshmen college women have been a population of interest. It is possible providing unique physical activity information via text messages could support freshmen women in increasing their physical activity levels. Freshmen females (n=30) were recruited to participate in a 9-week program that involved wearing an ActivPal for 3 individual weeks (beginning, middle, and end ...


Examination Of Preference And Tolerance For Exercise Intensity And College Student Fitness, Blanca Delatorre Apr 2019

Examination Of Preference And Tolerance For Exercise Intensity And College Student Fitness, Blanca Delatorre

Kansas State University Undergraduate Research Conference

Individuals who prefer and tolerate higher intensity exercise demonstrate higher fitness levels over time. PURPOSE: To examine relationships between Preference (P) and Tolerance (T) for exercise intensity and fitness before and after 8-week college activity courses. METHODS: Participants were students in 8-week high-intensity functional training (HIFT; n=54, 54% male, age= 22±3 years) or traditional weight training (TWT; n=41, 71% male,age= 23±4 years). During the first and last class sessions, participants completed the 16-item Preference for and Tolerance of the Intensity of Exercise Questionnaire [score range=8 (low)-40 (high)]. After a standardized warm-up, they completed ...


Sex Differences In Exercise Recovery, Cristian Erives Apr 2019

Sex Differences In Exercise Recovery, Cristian Erives

Kansas State University Undergraduate Research Conference

Recent findings from our laboratory suggest that recovery from peripheral fatigue measured by pre- and post-potentiated twitch forces following extreme intensity (80%) exercise is faster than following severe intensity exercise (40% MVC). Women have been shown to have predominately higher percentages of slow twitch muscle fibers compared to men. Purpose: To test the hypothesis that Qtw (potentiated twitch) following exercise is recovered faster in women in both exercise intensities. Methods: 6 subjects (3 men, 3 woman, age 24 ± 4 yrs, 74.5 ± 17.4 kg; 173 ± 5 cm) performed 2 intermittent isometric knee extension tests to exhaustion at 40% and ...


An Investigation Of Physical Activity At Boys And Girls Club, Jerica Garcia Apr 2019

An Investigation Of Physical Activity At Boys And Girls Club, Jerica Garcia

Kansas State University Undergraduate Research Conference

National statistics and trends show an increase in childhood obesity, and lack of physical activity (PA) among children may contribute to these trends. The overall purpose of this study was to observe and collect data on the PA of children grades K-6 attending two local Boys and Girls Club (BCG) after school programs. Both sites were observed for one week at baseline. Physical activity data were collected from the children objectively via accelerometers. The researchers observing the sites logged setting characteristics (minutes of active recreation time offered) and BGC staff behaviors (PA encouragement or discouragement). Baseline results showed children at ...


Comparing Strength Outcomes Of An 8 Week Hift Interventon Vs 8 Week Traditional Weight Training., Jason Sartor Apr 2019

Comparing Strength Outcomes Of An 8 Week Hift Interventon Vs 8 Week Traditional Weight Training., Jason Sartor

Kansas State University Undergraduate Research Conference

COMPARING STRENGTH OUTCOMES OF AN 8 WEEK HIFT INTERVENTON VS 8 WEEK TRADITIONAL WEIGHT TRAINING.

Jason Sartor1, Justin A. DeBlauw1, Brittany S. Hollerbach1 and Katie M. Heinrich1

1Kansas State University, Manhattan, KS

High-intensity functional training (HIFT) temporally combines aerobic and resistance exercise at relative high intensity levels. Functional workouts include varied exercises that simulate movements of daily living to improve overall fitness. Traditional weight training (TWT) focuses on progressive sets and repetitions of resistance exercise performed both with free weights and machines. With comparison Data of these interventions’ individuals can obtain a better understanding of ...


Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly Despiegelaere, Mukul Mukherjee, Sara Myers Mar 2019

Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly Despiegelaere, Mukul Mukherjee, Sara Myers

Student Research and Creative Activity Fair

Single Session Walking Adaptations to an Ankle Foot Orthosis in Patients with Claudication and Peripheral Artery Disease

Todd Leutzinger1, 2, Iraklis Pipinos2, 3, Jason Johanning2, 3, Mukul Mukherjee1, Sara Myers1, 2

1Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE USA

2Nebraska and Western Iowa Veterans Affairs’ Medical Center, Omaha, NE USA

3Department of Surgery, University of Nebraska Medical Center, Omaha, NE USA

Email: tleutzinger@unomaha.edu

Peripheral artery disease (PAD) is an atherosclerotic disease affecting the arteries of the lower extremities [1]. The primary symptom of PAD is intermittent claudication ...


The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun Mar 2019

The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun

Student Research and Creative Activity Fair

Name: Jenny Anne Maun

Title: The effects of stiffness of a prosthetic shock-absorbing pylon on mechanical work during walking

Degree: Masters

Faculty Advisor: Kota Z. Takahashi, PhD

Co-authors: Steven A. Gard, PhD; Matthew J. Major, PhD

A prosthetic shock-absorbing pylon (SAP) is intended to attenuate impact forces, provide comfort, and reduce residual limb pain for prosthesis users. However, the effect of an SAP and its spring stiffness on the mechanical work done by the prosthetic limb during walking remains unclear. The purpose of this study: to investigate the effects of SAP spring stiffness and walking speed on the mechanical work ...


How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi Mar 2019

How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi

Student Research and Creative Activity Fair

The ankle structures play a key role in body support, forward propulsion and leg swing. One important property of the human ankle is its ‘quasi-stiffness’, or resistance to angular motion. The ankle joint stiffness can play a role in aiding the lower leg as its rocks over the foot. Human biological ankle stiffness changes in response to changes in the mechanical demands of walking (e.g. added load or changes in speed), using active muscle contractions. However, the role of ankle stiffness in regulating metabolic energy across walking conditions is unknown. Therefore, the purpose of this study is to determine ...


Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz Mar 2019

Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz

Student Research and Creative Activity Fair

Parkinson’s Disease (PD) causes gait to be more variable and more random. Gait variability is related to disease severity, and may be a marker of fall risks. Gait in PD is attention-dependent, meaning a distraction while walking could be detrimental. The effects of dual-task walking on gait variability in PD are unclear (in particular fractal fluctuations). This study will determine if dual-task walking impacts stride-to-stride variability compared to normal walking in people with Parkinson’s Disease. We predict that dual-tasking will lead to more random stride-to-stride variability in people with PD, compared to controls. Also, within the PD group ...


How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi Mar 2019

How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi

Student Research and Creative Activity Fair

The foot's biomechanical role in walking on sloped surfaces is currently unclear. While previous biomechanics studies have examined the hip, knee, and ankle, the foot is oversimplified as a rigid-body segment. This oversimplification overshadows its complex structure and function. In this project, we use an innovative multi-segment foot model to explore how the foot adapts its mechanics to incline and decline walking. Preliminary results have revealed that the foot is capable of adapting its mechanical work profile to both incline and decline walking. Specifically, the foot can increase its positive work output (i.e., increased energy generation) during inclined ...


Skeletal Muscle Mitochondrial Biogenesis In Response To Exercise And Cold Exposure, Camille Larson Mar 2019

Skeletal Muscle Mitochondrial Biogenesis In Response To Exercise And Cold Exposure, Camille Larson

Student Research and Creative Activity Fair

BACKGROUND: Aerobic exercise triggers mitochondrial biogenesis, the generation of new mitochondria, by ATP depletion and subsequent activation of the AMPK signaling pathway. This leads to enhanced expression of PGC-1α, a positive regulator of respiration, mitochondrial biogenesis, and adaptive thermogenesis. Previous research from our lab has shown that exercise followed by cold recovery enhances the transcription of genes associated with mitochondrial growth and division, however the recovery period was necessary for this response. Perhaps exercising in a colder external environment would induce a greater thermoregulatory response and gradient between ambient skin and core temperature that may lead to altered mitochondrial turnover ...


Effect Of Handrail Use During Stair Climbing In Oa Patients: A Pilot Study, Jenna Ackerman Mar 2019

Effect Of Handrail Use During Stair Climbing In Oa Patients: A Pilot Study, Jenna Ackerman

Student Research and Creative Activity Fair

Introduction: For the patients with osteoarthritis of the knee, stairs are commonly a difficult task and may be the first thing affect by osteoarthritis.1 This population often employs altered strategies when they approach, ascend, and descend the stairs compared to a healthy population. Within 12 years, 80% of patients develop knee osteoarthritis in the contralateral limb.2 Handrails play an important role by assisting with balance, control, and confidence, but their use needs to be assessed even further to fully understand how handrails impact the contralateral limb in osteoarthritic patients and how they may be integrated optimally into gait ...


The Effects Of Swimming Training On Arterial Stiffness, Muscular Strength And Cardiorespiratory Endurance In Postmenopausal Women With Stage 2 Hypertension, Steven Scott Mar 2019

The Effects Of Swimming Training On Arterial Stiffness, Muscular Strength And Cardiorespiratory Endurance In Postmenopausal Women With Stage 2 Hypertension, Steven Scott

Student Research and Creative Activity Fair

Objective:

Aging is associated with progressive decreases in arterial health and function as well as overall fitness. It is crucial to prevent or reduce the negative effects of aging on vasculature and fitness components by implementing appropriate lifestyle interventions, such as exercise training. We examined the effects of a swimming (SWM) regimen on arterial stiffness (pulse wave velocity, PWV), blood pressure (BP), wave reflection (AIx), muscle strength and aerobic capacity in postmenopausal women with stage 2 hypertension.

Methods:

Using a parallel experimental design, participants were randomly assigned to either a SWM (n=52) or non-exercising control group (n=48) for ...


3d Prosthetics Effects On Standing Posture In Unilateral Upper Limb Deficient Children, Keaton Young Mar 2019

3d Prosthetics Effects On Standing Posture In Unilateral Upper Limb Deficient Children, Keaton Young

Student Research and Creative Activity Fair

3D Prosthetics Effects on Standing Posture in Unilateral Upper Limb Deficient Children

Keaton Young

Department of Biomechanics, University of Nebraska at Omaha

Introduction

Upper Limb Reduction Deficiency (ULD) is a congenital disability that affects the upper limb, which the Center for Disease Control and Prevention estimates that nearly 1,500 babies are born with ULD in the United States yearly 1,2. Prior research has focused on functional treatment of the upper limbs but has lacked observance of the effects that prosthetics and limb loss incur to the trunk. Therefore, the purpose of this study is to examine the acute ...


The Time Of Slip Onset During Stance Influences The Characteristics Of The Unconstrained Perturbation, Corbin Rasmussen, Nathaniel Hunt Mar 2019

The Time Of Slip Onset During Stance Influences The Characteristics Of The Unconstrained Perturbation, Corbin Rasmussen, Nathaniel Hunt

Student Research and Creative Activity Fair

Falls pose a significant health hazard, resulting in devastating injuries like broken wrists, fractured hips, and traumatic brain injuries that exceed $50 billion in U.S. medical costs. To address these risks, biomechanists have subjected individuals to simulated slips in order to study the factors that lead to falls. These studies have focused on slips that happen immediately after heel-strike and are unnaturally restricted by the methods used to cause the slip. Therefore, the effects of unconstrained slips that occur throughout stance phase are unknown. To address this knowledge gap, we examined the relationship between the timing of slip onset ...


Isolating Aspects Of Gait Through The Use Of Pacing Signals: A Pilot Study, Joel Sommerfeld Mar 2019

Isolating Aspects Of Gait Through The Use Of Pacing Signals: A Pilot Study, Joel Sommerfeld

Student Research and Creative Activity Fair

A number of recent studies have shown that the temporal structure of pacing signals greatly influences the gait dynamics observed when coordinating with those signals. Typically, those studies have focused on autocorrelation structure (ACF). The current study builds on that work by addressing how the probability distribution (PDF) of pacing signals contributes to the process of synchronization. Results show that people use both of those sources of information when coordinating the timing of the lower limbs with an external pacing signal.


Subthreshold Vibration Influences The Posture And Gait Of Transtibial Amputees, Charles Sloan Mar 2019

Subthreshold Vibration Influences The Posture And Gait Of Transtibial Amputees, Charles Sloan

Student Research and Creative Activity Fair

Unilateral transtibial amputees lose the afferent pathways of the limb when amputation occurs. The addition of vibration has shown to increase sensation on the applied limb. This study looks into how the addition of subthreshold vibration affects amputee gait and posture. Vibration applied to the residual limb was shown to have worked in posture, but not in gait.


Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim Mar 2019

Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim

Student Research and Creative Activity Fair

A musculoskeletal simulation study is necessary to identify the cause-effect relationship between hip abductor weakness and ACL loading during athletic events such as landing and jumping. The purpose of this study was to identify the effect of weakness of hip abductors on lower extremity kinematics and ACL loading during single-leg landings. We hypothesized that hip abductor weakness would alter lower extremity joint kinematics. We also hypothesized that hip abductor weakness would increase ACL loading during single-leg landings. This study was a combination of a human experiment and a musculoskeletal modeling simulation. Ten healthy participants performed single-leg landing from a height ...


Tumbling Into A Crisis: Use Of Corporate Apologia After Usa Gymnastics Falls Off The Balance Beam, Terry L. Rentner, Cory Young Jan 2019

Tumbling Into A Crisis: Use Of Corporate Apologia After Usa Gymnastics Falls Off The Balance Beam, Terry L. Rentner, Cory Young

International Crisis and Risk Communication Conference

In an open letter to U.S. gymnasts on Nov. 5, 2018, United States Olympic Committee (USOC) CEO Sarah Hirshland told its more than 150,000 members “You deserve better” as it launched the Nuclear Clause that would revoke USA Gymnastics (USAG) as a governing body for the sport at the Olympic level [1]. This announcement comes in the wake of USAG’s ongoing crisis that includes a failure to protect athletes from team doctor Larry Nassar, imprisoned for sexually abusing more than 350 female gymnasts; investigations tied to Michigan State University; and the turnover of several USAG CEO’s ...