Kinesiology Commons^™

A Full Collegiate Volleyball Season Does Not Influence Jumping Or Landing Performance In Freshmen And Sophomore Players, Christian Noel Sanchez

Open Access Theses & Dissertations

Knee injuries are devastating and typically experienced by athletes when performing jumping and landing tasks throughout a complete collegiate volleyball season. The purpose of this study was to examine changes in lower extremity strength, frontal plane knee angles and moments, jump performance during a countermovement and approach jump before and after a complete Division I collegiate volleyball season in female volleyball freshman and sophomores. Eight freshman/sophomore female collegiate volleyball players participated in the study. Lower extremity strength was assessed using an isokinetic dynamometer, kinematic and kinetic data were obtained through three-dimensional motion capture system and force platforms, respectively. Participants performed …

Accuracy Of Predicted Energy Expenditure From A Fitbit Inspire Hr Activity Monitor During Short- And Long-Duration Exercise, Cailyn Van Camp

Master's Theses and Doctoral Dissertations

PURPOSE: To determine the accuracy of predicted Energy Expenditure (EE) reported by a wrist-worn activity monitor compared to measured EE during both a long- and short-duration exercise. METHODS: In addition to a VO_2max treadmill test, a running speed at approximately 70 - 75% of that VO_2max was found during the first visit. The second and third visit was comprised of either a 30-minute or 10-minute run at the speed previously determined. A wrist activity monitor was worn and VO2 and EE were recorded by a metabolic cart. Pearson correlation, paired samples t-test, and repeated measures ANOVAs compared predicted …

The Influence Of Over-Ground Versus Treadmill Walking On Gait Mechanics In Children With Autism Spectrum Disorder, Emily Ann Chavez

Open Access Theses & Dissertations

Treadmill (TM) walking may be a way to combat obesity and socio-behavioral barriers associated with children with Autism Spectrum disorder (ASD), though tripping-risk has not yet been assessed for this population through use of spatial-temporal gait analysis. The aim of this project/study was to examine spatial-temporal walking mechanics and lower extremity tripping descriptors between over ground (OG) and TM gait conditions in children with ASD compared to children with neurotypical development (NT). Kinematics data were obtained through tridimensional motion analysis where participants, 10 children with ASD and 9 age- and sexmatched NT controls, were outfitted with retroreflective markers on their …

Effects Of A Strength Training Intervention And Quality Of Life: Case Study On A Sedentary Adult Female, Lucas Frazier

Williams Honors College, Honors Research Projects

The purpose of the project is to evaluate physiological and quality of life changes in a

sedentary, senior-aged (55 or older) female using a six-week strength training

intervention. This case study will instruct how to perform a push-pull-legs split

routine by going to the gym three times per week. Prior to the six week intervention,

both quantitative and qualitative variables will be collected to assess baseline data,

including the subject’s resting heart rate, resting blood pressure, grip strength, one-

repetition maximum on seven whole body exercises (dumbbell bicep curl, tricep

pushdown, barbell bench press, wide-grip lat pull-down, seated dumbbell press, …

Forecasting Issues In Ncaa Division I Fbs Athletics, James T. Morton, Donna L. Pastore

Kinesiology and Health Science Faculty Publications

The National Collegiate Athletic Association (NCAA) and its member institutions have been faced with significant changes in the recent past. This study was used to predict issues, caused by some of these changes, which will impact leaders of NCAA Division I Football Bowl Subdivision (FBS) athletic departments over the next five to seven years. The Delphi technique was employed to obtain expert opinions for the forecast. The expert panel consisted of sport management faculty who were surveyed over three rounds to determine what issues were likely to occur and whether or not those issues would have a significant impact. The …

Biomechanics And Neural Control Of Movement: Cmi's Effects On Downstream Motor Processing And Gait In Forwards And Backwards Walking, Christopher Choi

CMC Senior Theses

Analyzing the effects of cognitive motor interferences (CMI) on walking is usually done in patients with neurological comorbidity or during forward walking (FW). However, there are few studies that examine gait differences between FW and backward walking (BW) under the presence of CMI when speed is kept constant on a treadmill. In this study we examined how CMI would disrupt sensory feedback and affect the descending motor pathway. We hypothesized that subjects that walked backwards and were given a cognitive task would show the greatest differences in gait due to a lack of visual input and the presence of CMI. …

The Effects Of In-Season Training Changes On Body Composition In Division I Collegiate Football Players, Kayla Emory

Graduate Research Theses & Dissertations

Body composition quantification in athletics can be used as a tool for developing a training program and monitoring progress in developing ideal body composition for optimal performance. Commonly, athletes are concerned with the amount of fat free mass (FFM) and fat mass (FM) they have, since those variables have been commonly linked to reduced performance and increased injury risks. The game of football is constantly evolving and so is the need for players to be bigger, stronger, and faster. Most research has investigated the body composition changes in football players as a whole team during an off-season, however few have …

Biomechanics In The 4haie Study: Air Pollution And Musculoskeletal Health - An Update, Daniel Jandacka, Jaroslav Uchityil, David Zahradník, Roman Farana, Dominik Villimek, Jiri Skypala, Jan Urbaczka, Jan Plesek, Adam Motyka, Denisa Blaschova, Gabriela Beinhauerova, Marketa Rygelová, Pavel Brtva, Zuzana Golembiovska, Klara Balazova, Jan Malus, Veronika Horka, Julia F. Silvernail, Gareth Irwin, Miika T. Nieminen, Victor Casula, Vlado Juras, Milos Golian, Steriani Elavsky, Lenka Knapova, Radim Sram, Joseph Hamill

Kinesiology and Nutrition Sciences Faculty Research

The overall purpose of the 4HAIE study was to assess the influence of the interaction between air pollution and biomechanical, physiological and psychosocial factors on the incidence of injuries, health and well-being. A total of 1,500 active runners and inactive controls aged 18-65 will be recruited. Herein, we describe the biomechanical study design with data examples to investigate musculoskeletal and neuro-mechanics health in different air quality regions.

Footfall Pattern During Running In Preschool Children According To Age And Footwear, Jan Plesek, Julia F. Silvernail, Joseph Hamill, Daniel Jandacka

Kinesiology and Nutrition Sciences Faculty Research

The aim of this study was to compare the footfall pattern (FP) in different age groups of preschool children while they ran in standard running shoes (SRS) and barefoot. Forty-eight children aged 3-6 years participated in the study and were split into 4 age groups (n=12). All children performed a simple running game (based on the shuffle run) in SRS and barefoot. The length of the runway was adjusted for each age group. Kinematic and kinetic data were collected using 3-D motion capture system. We analyzed strike index (SI) and sagittal plane ankle angle (AA) at initial contact (IC) from …

Footstrike Patterns Of High And Mid-Mileage Non-Rearfoot Runners During An Exhaustive Run, Jan Urbaczka, Julia F. Silvernail, Daniel Jandacka

Kinesiology and Nutrition Sciences Faculty Research

The purpose of this study was to identify the effect of fatigue on footstrike patterns in two groups of habitually non-rearfoot runners. Twenty-eight runners participating in this study were divided into two groups by their weekly mileage. Participants completed a VO2max test to determine the velocity for the fatiguing run. Kinematic, physiological and biochemical data from the beginning and the remaining 3 minutes of fatiguing treadmill run were obtained. The overall time for fatiguing run exceeded 40 minutes (t = 48,1 ± 3,6 min.). The foot angle at the instant of initial contact significantly changed in both groups following fatigue. …

Structural Remodelling Of The Lumbar Multifidus, Thoracolumbar Fascia And Lateral Abdominal Wall Perimuscular Connective Tissues: A Cross-Sectional And Comparative Ultrasound Study, Christian Larivière, Richard Preuss, Dany H. Gagnon, Hakim Mecheri, Sharon M. Henry

Études primaires

Introduction

With low back pain (LBP), remodelling of the lumbar soft tissues involves both trunk muscles and neighbouring passive connective tissues. The aim of the present study was to compare three quantitative measures of these tissues, using ultrasound imaging (USI), among healthy controls and individuals with LBP.

Methods

USI measures from 30 healthy subjects and 34 patients with non-acute LBP were compared between groups and sexes. The measures employed were (1) lumbar multifidus echogenicity (fatty/fibrosis infiltration) at three vertebral levels; (2) posterior layer thickness of the thoracolumbar fascia, and (3) thickness of the perimuscular tissues surrounding the external oblique, internal …

Association Of Various Physiological And Fitness Markers To Body Fat Percentage In Physically Inactive Adults, Anthony Mckee

Graduate Research Theses & Dissertations

Obesity can dramatically and negatively affect many aspects of normal physiological functioning. Obesity is defined as abnormal or excessive body fat accumulation that presents a risk to health. Body mass index (BMI) is a widely used approach to quantify body fat in large group settings; however, this method has significant shortcomings with accuracy and estimation. More direct measures such as bioelectrical impedance analysis (BIA) can provide a more reliable and accurate assessment of body fat mass and, therefore reduce the shortcomings of BMI when assessing possible associations with health- and performance-related variables. A plethora of research studies has been conducted …

Female Collegiate Student Athletes And The Perception, Attitudes And Experiences Of Psychological And Mental Health Services, Breonna Bejaran

Cal Poly Humboldt theses and projects

This study explored eighteen National Collegiate Athletic Association (NCAA) Division II female student athletes’ experiences and opinions of help seeking for mental health concerns. A mixed methodological design was used. Qualitative and quantitative data was collected to gain an understanding of help seeking barriers for the participant and their beliefs about help seeking barriers for their peers. Results from the qualitative data identified several themes that assisted in understanding help seeking behaviors. Data suggest that there was a lack of motivation when it came to seek mental health services as a whole by the female student athlete population. Time, lack …

Subject-Specific Regression Equations To Estimate Lower Spinal Loads During Symmetric And Asymmetric Static Lifting, F. Ghezelbash, A. Shirazi-Adl, Z. El Ouaaid, A. Plamondon, N. Arjmand

Études primaires

Workplace safety assessment, personalized treatment design and back pain prevention programs require accurate subject-specific estimation of spinal loads. Since no noninvasive method can directly estimate spinal loads, easy-to-use regression equations that are constructed based on the results of complex musculoskeletal models appear as viable alternatives. Thus, we aim to develop subject-specific regression equations of L4-L5 and L5-S1 shear and compression forces during various symmetric/asymmetric tasks using a nonlinear personalized finite element musculoskeletal trunk model. Kinematics and electromyography (EMG) activities of 19 young healthy subjects were collected during 64 different symmetric/asymmetric tasks. To investigate the reliability and accuracy of the musculoskeletal …

Validation Of A Low-Cost Inertial Motion Capture System For Whole-Body Motion Analysis, X. Robert-Lachaine, H. Mecheri, A. Muller, C. Larue, A. Plamondon

Études primaires

While some low-cost inertial motion capture (IMC) systems are now commercially available, generally, they have not been evaluated against gold standard optical motion capture (OMC). The objective was to validate the low-cost Neuron IMC system with OMC. Whole-body kinematics were recorded on five healthy subjects during manual handling of boxes for about 32 min while wearing 17 magnetic and inertial measurement units with Optotrak clusters serving as a reference. The kinematical model was calibrated anatomically for OMC and with poses for IMC. Local coordinate systems were aligned with angular velocities to dissociate differences due to technology or kinematical model. Descriptive …

Biomarkers Of Inflammation In Heart Failure Patients With Reduced And Preserved Ejection Fractions: Multi-Ethnic Study Of Atherosclerosis, Michelle Lynne Stone

UNF Graduate Theses and Dissertations

Purpose Examine the relationships between high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), and soluble tumor necrosis factor-α receptor-1 (sTNF-R1) and the cumulative risk of heart failure with reduced (HFrEF) and preserved (HFpEF) ejection fractions in a diverse, population-based sample. Methods Study sample included 6,814 adult (45-84 years of age) men and women who participated in the Multi-Ethnic Study of Atherosclerosis and were free of cardiovascular disease at baseline. Cox regression was used to calculate the hazard ratios (HR) associated with elevated baseline hs-CRP (> 3-10 mg/L), IL-6 (> 75^th percentile) and sTNF-R1 (> 75^th percentile) and risk of overall …

Lower Extremity Stiffness In Collegiate Distance Runners Pre- And Post-Competition, Jake Tavernite, Matthew F. Moran

Exercise Science Faculty Publications

Previous evidence has suggested that there is a relationship between leg stiffness and improved running performance. The purpose of this investigation was to determine how leg stiffness of runners was influenced in the 24 and 48 hour period following a cross country race. Twenty-two collegiate cross-country runners (13 males, 9 females, 19.5 ± 1.4 yr) were recruited and participated in the study. Leg stiffness was assessed 24 hours before and after a race as well as 48 hours post-race. Three jumping protocols were conducted: 1) a static jump, 2) a countermovement jump, and 3) a vertical hopping test. Two embedded …

Feasibility Of Quantifying The Physical Exposure Of Materials Handlers In The Workplace With Magnetic And Inertial Measurement Units, Xavier Robert-Lachaine, Christian Larue, Denys Denis, Alain Delisle, Hakim Mecheri, Philippe Corbeil, André Plamondon

Études primaires

Handling tasks can expose workers to risk factors. The objective was to describe the feasibility of using magnetic and inertial measurement units (MIMUs) to quantify the physical exposure of materials handlers in the workplace. Full-body kinematics were obtained with MIMUs on 10 handlers gathering products ordered by retailers with a pallet truck. An observer classified the visual difference (VD) of segment orientation between a MIMUs avatar and video recordings in three categories (none, minor and major) for each product transfer. The feet, arms, shoulders and head were considered similar for ≥97% of observations. The trunk segment obtained the most differences …

The Impact Of A Division I Volleyball Season On Jumping Performance, Joshua R. Pascal

College of Graduate Studies: Theses & Dissertations

Previous research has been conducted on different performance metrics in collegiate athletes in various sports, including volleyball. These metrics include strength, speed, power output, and jump height. However, little research has examined changes in seasonal jumping performance in volleyball athletes on a weekly basis. Purpose: To examine how Division I Volleyball jumping performance is affected by a competitive season. Methods: 11 female volleyball athletes from one NCAA Division I institution wore VERT sensors during practices for the entire 15-week competitive season. The athletes also completed countermovement Jump Mat testing on the first practice of the week, with the exception of …

Mechanisms Of Hamstring Strain Injury: Interactions Between Fatigue, Muscle Activation And Function, Shaun Huygaerts, Francesc Cos, Daniel D. Cohen, Julio Calleja-Gonzalez, Marc Guitart, Anthony J. Blazevich, Pedro E. Alcarez

Research outputs 2014 to 2021

Isolated injury to the long head of biceps femoris is the most common type of acute hamstring strain injury (HSI). However, the precise hamstring injury mechanism (i.e., sprint-type) is still not well understood, and research is inconclusive as to which phase in the running cycle HSI risk is the greatest. Since detailed information relating to hamstring muscle function during sprint running cannot be obtained in vivo in humans, the findings of studies investigating HSI mechanisms are based on modeling that requires assumptions to be made based on extrapolations from anatomical and biomechanical investigations. As it is extremely difficult to account …