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Full-Text Articles in Biomechanics

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney Jan 2020

Effects Of Slope Upon Hind Limb Kinematics In Chukar Partridge (Alectoris Chukar), Anna T. Kenney

Undergraduate Theses and Professional Papers

Ground dwelling birds must scale all kinds of complex terrain in order to survive in their natural environments. For instance, Alectoris chukar live on steep hillsides with slopes of up to 60° or 172.3% slope. We undertook the present study to improve understanding of how birds successfully traverse such complex terrain. Using a high speed camera, we analyzed the hind limb kinematics of chukars during normal locomotion on a 10° and 35° incline, decline, and level slope. We compared the data collected from the video recordings, which we had used to identify and digitize the bony landmarks, between all ...


Altering Gait Variability With An Ankle Exoskeleton, Prokopios Antonellis, Samuel Galle, Dirk De Clercq, Philippe Malcolm Oct 2018

Altering Gait Variability With An Ankle Exoskeleton, Prokopios Antonellis, Samuel Galle, Dirk De Clercq, Philippe Malcolm

Journal Articles

Exoskeletons can influence human gait. A healthy gait is characterized by a certain amount of variability compared to a non-healthy gait that has more inherent variability; however which exoskeleton assistance parameters are necessary to avoid increasing gait variability or to potentially lower gait variability below that of unassisted walking are unknown. This study investigated the interaction effects of exoskeleton timing and power on gait variability. Ten healthy participants walked on a treadmill with bilateral ankle-foot exoskeletons under ten conditions with different timing (varied from 36% to 54% of the stride) and power (varied from 0.2 to 0.5 W ...


Linking Gait Dynamics To Mechanical Cost Of Legged Locomotion, David V. Lee, Sarah L. Harris Oct 2018

Linking Gait Dynamics To Mechanical Cost Of Legged Locomotion, David V. Lee, Sarah L. Harris

Life Sciences Faculty Publications

For millenia, legged locomotion has been of central importance to humans for hunting, agriculture, transportation, sport, and warfare. Today, the same principal considerations of locomotor performance and economy apply to legged systems designed to serve, assist, or be worn by humans in urban and natural environments. Energy comes at a premium not only for animals, wherein suitably fast and economical gaits are selected through organic evolution, but also for legged robots that must carry sufficient energy in their batteries. Although a robot's energy is spent at many levels, from control systems to actuators, we suggest that the mechanical cost ...


On The Calculation Of Sample Entropy Using Continuous And Discrete Human Gait Data, John D. Mccamley, William Denton, Peter C. Raffalt, Jennifer M. Yentes Oct 2018

On The Calculation Of Sample Entropy Using Continuous And Discrete Human Gait Data, John D. Mccamley, William Denton, Peter C. Raffalt, Jennifer M. Yentes

Journal Articles

Sample entropy (SE) has relative consistency using biologically-derived, discrete data >500 data points. For certain populations, collecting this quantity is not feasible and continuous data has been used. The effect of using continuous versus discrete data on SE is unknown, nor are the relative effects of sampling rate and input parameters m (comparison vector length) and r(tolerance). Eleven subjects walked for 10-minutes and continuous joint angles (480 Hz) were calculated for each lower-extremity joint. Data were downsampled (240, 120, 60 Hz) and discrete range-of-motion was calculated. SE was quantified for angles and range-of-motion at all sampling rates and multiple ...


Stride-To-Stride Fluctuations In Transtibial Amputees Are Not Affected By Changes In Push-Off Mechanics From Using Different Prostheses, Chase G. Rock, Shane R. Wurdeman, Nicholas Stergiou, Kota Z. Takahashi Oct 2018

Stride-To-Stride Fluctuations In Transtibial Amputees Are Not Affected By Changes In Push-Off Mechanics From Using Different Prostheses, Chase G. Rock, Shane R. Wurdeman, Nicholas Stergiou, Kota Z. Takahashi

Journal Articles

Stride-to-stride fluctuations of joint kinematics during walking reflect a highly structured organization that is characteristic of healthy gait. The organization of stride-to-stride fluctuations is disturbed in lower-limb prosthesis users, yet the factors contributing to this difference are unclear. One potential contributor to the changes in stride-to-stride fluctuations is the altered push-off mechanics experienced by passive prosthesis users. The purpose of our study was to determine if changes in push-off mechanics affect stride-to-stride fluctuations in transtibial amputees. Twenty-two unilateral transtibial amputees were enrolled in the 6- week cross-over study, where High and Low Activity (based on the Medicare Functional Classification System ...


Pertinacity Volume 4, Issue 2, Courteney L. Benjamin Oct 2018

Pertinacity Volume 4, Issue 2, Courteney L. Benjamin

Pertinacity

Pertinacity is a biannual magazine that features stories and reports on recent Korey Stringer Institute's initiatives.


Effects Of Variable Resistance Training On Kinetic And Kinematic Outcomes During A Heavy Conventional Deadlift, Timothy J. Gerking Oct 2018

Effects Of Variable Resistance Training On Kinetic And Kinematic Outcomes During A Heavy Conventional Deadlift, Timothy J. Gerking

Masters Theses & Specialist Projects

Variable Resistance Training (VRT), loading elastic band tension on a barbell, has shown improvements in force, power, and velocity. Studied extensively in the squat and bench press, VRT is less researched in the context of the deadlift. Additionally, while no acute VRT deadlift studies exist where intensity was ≥ 90% 1- RM, some heavy VRT studies suggest that at approximately 90% 1-RM, less band tension (BT) is required to enhance force and power than seen at lower intensities in existing research. Therefore, the purpose of this study was to determine the effects of VRT on peak relative vertical ground reaction force ...


Effects Of Compex As A Warm Up For Glenohumeral Range Of Motion, Melissa Ericson, Elizabeth R. Neil, Kenneth E. Games Sep 2018

Effects Of Compex As A Warm Up For Glenohumeral Range Of Motion, Melissa Ericson, Elizabeth R. Neil, Kenneth E. Games

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Research regarding proper upper extremity warm-up protocols remains inconclusive, especially for electrical stimulation methods like the Compex Sport Elite® unit. The purpose of this study is to evaluate the acute effects of a single treatment of the Compex® using the pre-warm-up protocol on glenohumeral range of motion compared to a standardized upper body ergometer (UBE) warm-up protocol. Methods: Thirty-five healthy, young adults completed the study (19 men, 16 women; age=22±2y; height=172.1±9.4cm; mass=71.3±16.1kg; right-hand dominant=28; left-hand dominant=7). Participants came to the research laboratory on two occasions, at least ...


Effect Of Ankle Taping On Dynamic Balance And Perception Of Stability, William S. Gear, Megan J. Lundstrom Sep 2018

Effect Of Ankle Taping On Dynamic Balance And Perception Of Stability, William S. Gear, Megan J. Lundstrom

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: The purpose of this study was to examine the actual and perceived effect of taping on dynamic stability. Methods: 21 physically active subjects [12 females (age = 20.33 ± 1.44 years, height = 165 ± 0.05 cm, mass = 68.76 ± 12.69 kg), and 9 males (age = 21.33 ± 1.66 years, height = 180 ± 0.10 cm, mass = 86.54 ± 9.46 kg)] participated in this study. Dynamic stability and perception of stability were assessed barefoot and with the ankle taped. The taped ankle condition used a standard preventive tape application including two anchors, three stirrups, close downs, horseshoes, two ...


A Thermo-Poromechanics Finite Element Model For Predicting Arterial Tissue Fusion, Douglas P. Fankell Aug 2018

A Thermo-Poromechanics Finite Element Model For Predicting Arterial Tissue Fusion, Douglas P. Fankell

Mechanical Engineering Graduate Theses & Dissertations

This work provides modeling efforts and supplemental experimental work performed towards the ultimate goal of modeling heat transfer, mass transfer, and deformation occurring in biological tissue, in particular during arterial fusion and cutting. Developing accurate models of these processes accomplishes two goals. First, accurate models would enable engineers to design devices to be safer and less expensive. Second, the mechanisms behind tissue fusion and cutting are widely unknown; models with the ability to accurately predict physical phenomena occurring in the tissue will allow for insight into the underlying mechanisms of the processes. This work presents three aims and the efforts ...


Performance Impact Of Different Lower-Limb Setup Positions In The Backstroke Swimming Start, Gordon E. Barkwell Aug 2018

Performance Impact Of Different Lower-Limb Setup Positions In The Backstroke Swimming Start, Gordon E. Barkwell

Electronic Thesis and Dissertation Repository

The performance impact of different knee extension angles in the setup position for a backstroke start was evaluated using an instrumented starting surface. Ten backstroke swimmers completed maximum-effort starts in each of two setup positions: one with the knees flexed, and one with the knees extended. The start handles and touchpad were instrumented with tri-axial force plates. Activity of major hip and knee extensors was measured using surface electromyography. Body position was recorded throughout the start using two high-speed cameras. There was no difference in time to 10 m between the two conditions, indicating there is likely no advantage in ...


Motor Variability In Rowing, Maude Potvin-Gilbert Aug 2018

Motor Variability In Rowing, Maude Potvin-Gilbert

Electronic Thesis and Dissertation Repository

The aim of the study was to analyze the impact of environment, intensity and distance rowed on temporal variability of strokes and on knee angle variability. 11 participants rowed 2,000 m at high and low intensities on an ergometer and at high intensity in a single on-water. Data were collected at the beginning and at the end of each exercise. All the factors influenced significantly the temporal variability (respectively beta=-0.013 and p .007=; beta= 0.007 and p=.021; beta=0.06 and p=.028). The difference of visual information and the need of the rower to ...


Exoskeleton Assistance Symmetry Matters: Unilateral Assistance Reduces Metabolic Cost, But Relatively Less Than Bilateral Assistance, Philippe Malcolm, Samuel Galle, Pieter Van Den Berghe, Dirk De Clercq Aug 2018

Exoskeleton Assistance Symmetry Matters: Unilateral Assistance Reduces Metabolic Cost, But Relatively Less Than Bilateral Assistance, Philippe Malcolm, Samuel Galle, Pieter Van Den Berghe, Dirk De Clercq

Journal Articles

Background: Many gait impairments are characterized by asymmetry and result in reduced mobility. Exoskeletons could be useful for restoring gait symmetry by assisting only one leg. However, we still have limited understanding of the effects of unilateral exoskeleton assistance. Our aim was to compare the effects of unilateral and bilateral assistance using a within-subject study design.

Methods: Eleven participants walked in different exoskeleton conditions. In the Unilateral conditions, only one leg was assisted. In Bilateral Matched Total Work, half of the assistance from the Unilateral conditions was applied to both legs such that the bilateral sum was equal to that ...


Compensatory Hip And Knee Mechanics In Transtibial Amputees During Stair Descent And Directional Task, Mindie Clark Jul 2018

Compensatory Hip And Knee Mechanics In Transtibial Amputees During Stair Descent And Directional Task, Mindie Clark

All NMU Master's Theses

This study compared lower limb mechanics in unilateral transtibial amputees and able bodied controls during strenuous activities of daily living (ADL). Seven unilateral transtibial amputee and five matched-abled bodied control participants executed stair descent on a four-step rehabilitation staircase followed by one of two anticipated directional tasks. Force, kinematics and gait parameters were chosen to compare mechanics and stride characteristics between the residual limb, intact limb and able-bodied dominant limb between a straight walking condition and a non linear directional movement (wide-step cutting task). Results indicated that significant compensatory mechanisms occurred in the intact limb, perhaps from decreased load tolerance ...


Control Of Redundant Pointing Movements Involving The Wrist And Forearm, Garrett R. Dorman, Kevin C. Davis, Allan W. Peaden, Steven K. Charles Jun 2018

Control Of Redundant Pointing Movements Involving The Wrist And Forearm, Garrett R. Dorman, Kevin C. Davis, Allan W. Peaden, Steven K. Charles

All Faculty Publications

The musculoskeletal system can move in more ways than are strictly necessary, allowing many tasks to be accomplished with a variety of limb configurations. Why some configurations are preferred has been a focus of motor control research, but most studies have focused on shoulder-elbow or whole-arm movements. This study focuses on movements involving forearm pronation-supination (PS), wrist flexion-extension (FE), and wrist radial-ulnar deviation (RUD), and elucidates how these three degrees of freedom (DOF) combine to perform the common task of pointing, which only requires two DOF. Although pointing is more sensitive to FE and RUD than to PS and could ...


Hook Of Hamate Removal In A Collegiate Baseball Player, Tori Dalessandro Jun 2018

Hook Of Hamate Removal In A Collegiate Baseball Player, Tori Dalessandro

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Collegiate Football Player Suffering From Non-Traumatic Hemoptysis, Lauryn Lanzer, Ryan Moore, Kelly Ferian, Elizabeth Walters, Karyn Gentile Jun 2018

Collegiate Football Player Suffering From Non-Traumatic Hemoptysis, Lauryn Lanzer, Ryan Moore, Kelly Ferian, Elizabeth Walters, Karyn Gentile

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Experimental Measurement Of Dolphin Thrust Generated During A Tail Stand Using Dpiv, Frank E. Fish, Terrie M. Williams, Erica Sherman, Yae Eun Moon, Vicki Wu, Timothy Wei Jun 2018

Experimental Measurement Of Dolphin Thrust Generated During A Tail Stand Using Dpiv, Frank E. Fish, Terrie M. Williams, Erica Sherman, Yae Eun Moon, Vicki Wu, Timothy Wei

Biology Faculty Publications

: Estimation of force generated by dolphins has long been debated. The problem was that indirect estimates of force production for dolphins resulted in low values that could not be validated. Bubble digital particle image velocimetry (DPIV) measured hydrodynamic force production for swimming dolphins and demonstrated high force production. To validate the bubble DPIV and reconcile force production measurements, two bottlenose dolphins (Tursiops truncatus) performing tail stands were measured with bubble DPIV. Microbubbles were generated from a finely porous hose and compressed air source. Displacement of the bubbles by the propulsive motions of the dolphin was tracked with a high-speed video ...


Gait Stability Has Phase-Dependent Dual-Task Costs In Parkinson’S Disease, Peter C. Fino, Martina Mancini, Carolin Curtze, John G. Nutt, Fay B. Horak May 2018

Gait Stability Has Phase-Dependent Dual-Task Costs In Parkinson’S Disease, Peter C. Fino, Martina Mancini, Carolin Curtze, John G. Nutt, Fay B. Horak

Journal Articles

Dual-task (DT) paradigms have been used in gait research to assess the automaticity of locomotion, particularly in people with Parkinson’s disease (PD). In people with PD, reliance on cortical control during walking leads to greater interference between cognitive and locomotor tasks. Yet, recent studies have suggested that even healthy gait requires cognitive control, and that these cognitive contributions occur at specific phases of the gait cycle. Here, we examined whether changes in gait stability, elicited by simultaneous cognitive DTs, were specific to certain phases of the gait cycle in people with PD. Phase-dependent local dynamic stability (LDS) was calculated ...


Biomechanical Gait Variable Estimation Using Wearable Sensors After Unilateral Total Knee Arthroplasty, Ik-Hyun Youn, Jong-Hoon Youn, Joseph A. Zeni, Brian A. Knarr May 2018

Biomechanical Gait Variable Estimation Using Wearable Sensors After Unilateral Total Knee Arthroplasty, Ik-Hyun Youn, Jong-Hoon Youn, Joseph A. Zeni, Brian A. Knarr

Journal Articles

Total knee arthroplasty is a common surgical treatment for end-stage osteoarthritis of the knee. The majority of existing studies that have explored the relationship between recovery and gait biomechanics have been conducted in laboratory settings. However, seamless gait parameter monitoring in real-world conditions may provide a better understanding of recovery post-surgery. The purpose of this study was to estimate kinematic and kinetic gait variables using two ankle-worn wearable sensors in individuals after unilateral total knee arthroplasty. Eighteen subjects at least six months post-unilateral total knee arthroplasty participated in this study. Four biomechanical gait variables were measured using an instrumented split-belt ...


Move Your Dna: Movement Ecology And The Difference Between Exercise And Movement, Katy Bowman May 2018

Move Your Dna: Movement Ecology And The Difference Between Exercise And Movement, Katy Bowman

Journal of Evolution and Health

No abstract provided.


A Letter From The President, Siobahn E. Fagan May 2018

A Letter From The President, Siobahn E. Fagan

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Thank you for viewing this Special Edition of the Journal of Sports Medicine and Allied Health Sciences. As we continue to grow and continue to provide a platform for excellent scholarship your continued support is greatly appreciated.


Nfl Wide Receiver With Paroxysmal Dystonia/Dyskinesia, Chad Rairdon, Brian Dykuhuizen, Paul Sparling, Erika Smith-Goodwin May 2018

Nfl Wide Receiver With Paroxysmal Dystonia/Dyskinesia, Chad Rairdon, Brian Dykuhuizen, Paul Sparling, Erika Smith-Goodwin

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Chronic Subluxation And Relocation Of The Shoulder In A Collegiate Dodgeball Player, Victoria Stupecki, Nathan Doles May 2018

Chronic Subluxation And Relocation Of The Shoulder In A Collegiate Dodgeball Player, Victoria Stupecki, Nathan Doles

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Scapular Fracture In A Collegiate Football Player: A Case Study, Taylor Lipinsky, Aaron Himmler May 2018

Scapular Fracture In A Collegiate Football Player: A Case Study, Taylor Lipinsky, Aaron Himmler

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Changes In Sebt Scores In College Basketball Players Participating In A Preventative Ankle Program, Haley Potters, Jennifer Miller, Kurt Wilson May 2018

Changes In Sebt Scores In College Basketball Players Participating In A Preventative Ankle Program, Haley Potters, Jennifer Miller, Kurt Wilson

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Athletic Trainers' Knowledge And Treatment Of Athletes With Paroxysmal Dystonia/Dyskinesia, Chad Rairdon, Brian Dykhuizen, Erika Smith-Goodwin, Paul Sparling May 2018

Athletic Trainers' Knowledge And Treatment Of Athletes With Paroxysmal Dystonia/Dyskinesia, Chad Rairdon, Brian Dykhuizen, Erika Smith-Goodwin, Paul Sparling

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Perceived Understanding Of Athletic Training Students' And Education Students' Field Experience By The Campus Community, Megan Weiloch, Jennifer Walker, Erika Smith-Goodwin May 2018

Perceived Understanding Of Athletic Training Students' And Education Students' Field Experience By The Campus Community, Megan Weiloch, Jennifer Walker, Erika Smith-Goodwin

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Investigating The Efficacy Of Emotional Freedom Technique On Perceived Stress In Athletic Training Students, Samuel Tedtman, Brett Massie, Erika Smith-Goodwin May 2018

Investigating The Efficacy Of Emotional Freedom Technique On Perceived Stress In Athletic Training Students, Samuel Tedtman, Brett Massie, Erika Smith-Goodwin

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition


Prevalence, Knowledge, And Influence Of Whey Protein And Other Supplements On Athletes, Mallon C. Pittman, J. Brett Massie, Erika Smith-Goodwin May 2018

Prevalence, Knowledge, And Influence Of Whey Protein And Other Supplements On Athletes, Mallon C. Pittman, J. Brett Massie, Erika Smith-Goodwin

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

In volume 4, Issue 1 of the JSMAHS you will find Professional Research Abstracts, as well as Bachelor Student Research Abstracts and Case Reports.

Thank you for viewing this 4th Annual OATA Special Edition