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

Biomechanics Commons

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

998 Full-Text Articles 1,505 Authors 223,413 Downloads 77 Institutions

All Articles in Biomechanics

Faceted Search

998 full-text articles. Page 1 of 43.

The Effects Of Increasing Running Speed On Vgrf And Asymmetry, Kaela M. Hierholzer 2020 East Tennessee State University

The Effects Of Increasing Running Speed On Vgrf And Asymmetry, Kaela M. Hierholzer

Electronic Theses and Dissertations

Biomechanical and physiological parameters related to running performance are usually studied separately. However, evaluating both aspects together could be beneficial in improving athletic performance. The purpose of this study was to observe the change in peak vGRF and asymmetry as speed increases, while observing physiological responses during a O2maxtest. Data from athlete monitoring of 12 cross-country and triathlon athletes were analyzed. The athlete monitoring protocol included three unweighted countermovement jumps and a O2maxtest performed by the athletes. The athletes had an average O2maxof 53.4 ± 7.7 mL/kg/min, while their average vGRF ...


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

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 ...


Ulnar Collateral Ligament Reconstruction With Traditional Docking Compared To Novel Surgical Techniques, Kayley D. Guy, Brendon P. McDermott, Kaitlin Gallagher, Tyrone Washington 2019 University of Arkansas, Fayetteville

Ulnar Collateral Ligament Reconstruction With Traditional Docking Compared To Novel Surgical Techniques, Kayley D. Guy, Brendon P. Mcdermott, Kaitlin Gallagher, Tyrone Washington

Health, Human Performance and Recreation Undergraduate Honors Theses

Background: Ulnar Collateral Ligament Reconstruction (UCLR) is a surgical procedure on one of the main ligaments that provides normal stability for the elbow joint against excessive valgus stress. Damage to this ligament is common in athletes performing overhead throwing activities, primarily baseball players, due to excessive valgus stress during the throwing motion. The most common form of treatment for this type of injury is reconstructive surgery of the ligament, especially if athletes wish to return to sport participation. This type of surgery is extremely invasive and requires extensive post-operative rehabilitation in order to facilitate return to play. To date, many ...


Effects Of Anaerobic Fatigue On The Tuck Jump Assessment Performance In Female Collegiate Club Athletes, Madison M. Vomacka, Nicole Bascelli, Monica Lininger 2019 Northern Arizona University

Effects Of Anaerobic Fatigue On The Tuck Jump Assessment Performance In Female Collegiate Club Athletes, Madison M. Vomacka, Nicole Bascelli, Monica Lininger

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

Purpose: To determine the impact of a fatigue trial on the scores and number of jumps in a Tuck Jump Assessment (TJA) in female collegiate club athletes. The TJA is a 10-second plyometric jumping assessment used to replicate sport and identify lower extremity landing patterns. Scores from the TJA are summed together and those who score a 6 or higher are suggested for intervention training. Methods: Sixteen female club athletes (age: 20.9+1.9 years, weight: 59.13+7.72kg, height: 64.56+2.63cm) completed the TJA twice, once before performing a Wingate protocol and then again after ...


Prediction Modeling For Board Of Certification Exam Success For A Professional Master’S Athletic Training Program, Scott L. Bruce, Elizabeth K. Crawford, Gary B. Wilkerson, R. Barry Dale, Martina Harris, David W. Rausch 2019 Arkansas State University - Main Campus

Prediction Modeling For Board Of Certification Exam Success For A Professional Master’S Athletic Training Program, Scott L. Bruce, Elizabeth K. Crawford, Gary B. Wilkerson, R. Barry Dale, Martina Harris, David W. Rausch

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

Introduction: The Commission on Accreditation of Athletic Training Education mandates accredited athletic training programs have a minimum, three-year aggregate, first-attempt pass rate on the Board of Certification (BOC) examination of 70%. No studies have examined first-attempt BOC exam success for students enrolled in a professional master’s athletic training program (PMATP). Purpose: The purpose of this study was to identify factors associated with first-attempt success on the BOC examination for PMATP students. Methods: This cohort designed study used common application data from subjects’ university and PMATP applications to create prediction models to identify those factors that predict first-attempt success on ...


Performance Motion Analysis Unable To Predict Running-Related Injury In Collegiate Distance Runners, Christopher P. Melgares, Andrew C. Fry, Zachary Sanchez 2019 University of Kansas

Performance Motion Analysis Unable To Predict Running-Related Injury In Collegiate Distance Runners, Christopher P. Melgares, Andrew C. Fry, Zachary Sanchez

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

ABSTRACT

Purpose: Running-related injury (RRI) is common among competitive collegiate distance runners who participate in the sport of cross country and long distance track and field. Many factors contribute to RRI. Therefore, the purpose of this study was to determine if a 3D motion capture system’s performance motion analysis (PMA) report is capable of identifying factors predictive of RRI among collegiate distance runners during a cross country season. Methods: Thirty-one collegiate cross country runners (17 male, 14 female, mean age = 20.5 ± 1.4 years) gave their consent to participate in the investigation. Subjects were screened in the motion ...


Comparison Of Pitching From Flat Ground Vs. 10-Inch Mound Regarding Elbow Varus Torque And Arm Speed, Stephen A. Cage, X. Neil Dong, Brandon J. Warner, Diana M. Gallegos 2019 The University of Texas at Tyler; The University of North Carolina, Greensboro

Comparison Of Pitching From Flat Ground Vs. 10-Inch Mound Regarding Elbow Varus Torque And Arm Speed, Stephen A. Cage, X. Neil Dong, Brandon J. Warner, Diana M. Gallegos

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 effect of throwing surface and distance on varus elbow torque and arm speed. Methods: 11 male collegiate baseball pitchers (age = 20.73 ± 1.56 years, height = 175.26 ± 9.03 cm, mass = 70.31 ± 9.03 kg) participated in this study. Varus elbow torque and distance were measured using a 3D motion sensor housed in a spandex sleeve at the medial joint line of the elbow. Participants were instructed to complete their normal warmup routine as if they were about to pitch in a bullpen session or a game. Participants ...


An Examination Of Step Frequency And The Running Readiness Scale As Predictors Of Running-Related Injury In Collegiate Cross-Country Athletes, Shelley S. Payne Dr., Jenna D'Errico, D. S. Blaise Williams 2019 Otterbein University

An Examination Of Step Frequency And The Running Readiness Scale As Predictors Of Running-Related Injury In Collegiate Cross-Country Athletes, Shelley S. Payne Dr., Jenna D'Errico, D. S. Blaise Williams

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

Purpose: The purpose of this study was to determine the relationship between step frequency and the Running Readiness Scale and the occurrence of a Running-Related Injury (RRI) in a Division III cross-country team. Methods: Each athlete was screened prior to the season for their step frequency at a preferred and pre-determined pace. Additionally, each athlete performed 6 musculoskeletal tests known as the “Running Readiness Scale” to assess body alignment, weight distribution, and muscular endurance. Each subject logged their training and competition schedule and injury history throughout the season using the Otterbein Run Tracker app. Results: Sixteen subjects completed data collection ...


Determining The Effectiveness Of Core Strengthening Exercise Therapies In Treating Nonspecific Low Back Pain: A Critically Appraised Topic, Amanda King, Andrea Cripps 2019 Bowling Green State University

Determining The Effectiveness Of Core Strengthening Exercise Therapies In Treating Nonspecific Low Back Pain: A Critically Appraised Topic, Amanda King, Andrea Cripps

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

CLINICAL SCENARIO: Nonspecific low back pain is a condition which impacts athletes of all calibers and sports. It has been found that a total of 68% of top athletes from multiple sports have been affected by nonspecific low back pain at some point in their career. Clinicians have discussed that tight hamstrings and weak core muscles are a major cause of nonspecific low back pain. A myriad of program exist to reduce nonspecific low back pain caused from hamstring tightness, however a standardized rehabilitation protocol for strengthening the core muscles to reduce nonspecific low back pain is not as well ...


Water Entry Impact Dynamics Of Diving Birds, Saburel I. Sharker, Sean Holekamp, Mohammad M. Mansoor, Tadd T. Truscott 2019 Utah State University

Water Entry Impact Dynamics Of Diving Birds, Saburel I. Sharker, Sean Holekamp, Mohammad M. Mansoor, Tadd T. Truscott

Biology Faculty Publications

Some seabirds (such as northern gannets and brown boobies) can dive from heights as high as 30 m reaching speeds of up to 24 m s−1 as they impact the water surface. The physical geometry of plunge diving birds, particularly of the beak, allows them to limit high impact forces compared to non-diving birds. Numerically simulated data for one species (northern gannet) provides some insight into the impact forces experienced during diving, however, no reliable experimental data with real bird geometries exist for comparison purposes. This study utilizes eleven 3D printed diving bird models of three types of birds ...


Head Depth And Head Speed During Competitive Backstroke Ledge Starts, Wesley J. Manz, Joel T. Greenshields, Brian V. Wright, Curtis S. Goss, Benjamin C. Skutnik, Joel M. Stager 2019 Indiana University, Bloomington

Head Depth And Head Speed During Competitive Backstroke Ledge Starts, Wesley J. Manz, Joel T. Greenshields, Brian V. Wright, Curtis S. Goss, Benjamin C. Skutnik, Joel M. Stager

International Journal of Aquatic Research and Education

Recently, a commercially available starting ‘ledge’ designed to reduce foot slippage during the execution of the backstroke start was introduced in competitive swimming. For the purpose of identifying potential safety consequences, the present study investigated the effect of ledge use on head depths, speeds, and distances in backstroke starts of athletes with no prior or only novice familiarity of the ledge. Competitive backstroke starts were performed with and without ledges by high school-aged (14.5 to 19.2 yr, N = 61) swimmers in 1.52 m of water during a closed testing session. A SIMI Reality Motion System in a ...


Introducing A Practitioner-Focused Publication In Exercise Science And Kinesiology, James W. Navalta, Scott Lyons, Whitley J. Stone 2019 University of Nevada, Las Vegas

Introducing A Practitioner-Focused Publication In Exercise Science And Kinesiology, James W. Navalta, Scott Lyons, Whitley J. Stone

Scholarship in Kinesiology

  • The purpose is to introduce Topics in Exercise and Science Kinesiology (TESK) as an outlet for practical information.
  • We searched available journals in the field to determine practitioner-focused options, we also determined the percentage of presented abstracts at a popular meeting compared to the number of published papers in a leading peer-reviewed scientific journal.
  • Point of application 1: Only 2% of publication options in kinesiology or exercise science have a practitioner focus.
  • Point of application 2: A relatively small number of peer-reviewed conference abstracts (less than 10%) are deemed publication-worthy following journal peer-review.
  • Point of application 3: To be more ...


Altering Entry Angles In A Jump Landing Task Modifies Biomechanical Risk Factors Of Acl Injury, Shekoofe Saadat, Mitchell L. Stephenson, Jason C. Gillette 2019 Iowa State University

Altering Entry Angles In A Jump Landing Task Modifies Biomechanical Risk Factors Of Acl Injury, Shekoofe Saadat, Mitchell L. Stephenson, Jason C. Gillette

Kinesiology Presentations, Posters and Proceedings

This study investigated the effects of changing the entry-angle of a jump landing movement on ACL injury risk factors. Eight female recreational athletes performed 21 trials of a jump landing task. The direction of the first jump varied from -90° to 90° from the anterior axis in 30-degree increments. As the entry angle increased to the left, peak knee flexion and valgus angles as well as external valgus moments remained the same. In conditions where participants jumped more to their right, knee flexion angles were smaller and knee external valgus moments were greater. It can be concluded that kinematic analyses ...


Quantitative Analysis Of The Kinematics Of The Foot During Gait With Respect To Barefoot Running Shoes Using A Multi-Segment Foot Model, Lisa Y. Oikawa 2019 The University of Western Ontario

Quantitative Analysis Of The Kinematics Of The Foot During Gait With Respect To Barefoot Running Shoes Using A Multi-Segment Foot Model, Lisa Y. Oikawa

Electronic Thesis and Dissertation Repository

Kinematics of the foot during static and dynamic tasks are technically challenging to accurately measure, making it difficult to evaluate their contribution to running-related injuries. Motion capture can detect changes in running mechanics, such as with differing footwear. Habitual barefoot runners and/habitual minimalist shoe runners underwent a biomechanical evaluation of their foot movement during running using reflective markers and optical motion capture. A five-segment foot model was used to compare motions between the different parts of the foot while running barefoot and wearing Vibram Five Fingers™ (VFF) barefoot mimicking shoes. Supination/pronation in the forefoot was larger but not ...


The Foot And Ankle Structures Reveal Emergent Properties Analogous To Passive Springs During Human Walking, Erica Hedrick, Steven J. Stanhope, Kota Z. Takahashi 2019 University of Nebraska at Omaha

The Foot And Ankle Structures Reveal Emergent Properties Analogous To Passive Springs During Human Walking, Erica Hedrick, Steven J. Stanhope, Kota Z. Takahashi

Journal Articles

An objective understanding of human foot and ankle function can drive innovations of bio-inspired wearable devices. Specifically, knowledge regarding how mechanical force and work are produced within the human foot-ankle structures can help determine what type of materials or components are required to engineer devices. In this study, we characterized the combined functions of the foot and ankle structures during walking by synthesizing the total force, displacement, and work profiles from structures distal to the shank. Eleven healthy adults walked at four scaled speeds. We quantified the ground reaction force and center-of-pressure displacement in the shank’s coordinate system during ...


Improved Orthopaedic Repairs Through Mechanically Optimized, Adhesive Biomaterials, Stephen Wheeler Linderman 2019 Washington University in St. Louis

Improved Orthopaedic Repairs Through Mechanically Optimized, Adhesive Biomaterials, Stephen Wheeler Linderman

Engineering and Applied Science Theses & Dissertations

Despite countless surgical advances over the last several decades refining surgical approaches, repair techniques, and tools to treat tendon and tendon-to-bone injuries, we are still left with repair solutions that rely on fairly crude underlying mechanical principles. Musculoskeletal soft tissues have evolved to transfer high loads by optimizing stress distribution profiles across the tissue at each length scale. However, instead of mimicking these natural load transfer mechanisms, conventional suture approaches are limited by high load transfer across only a small number of anchor points within tissue. This leads to stress concentrations at anchor points that often cause repair failure as ...


Letter From President-Elect, Brian Huck 2019 OATA President-Elect

Letter From President-Elect, Brian Huck

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

The JSMAHS is proud to present Volume 5 Issue 1 of the journal. This issue comes in conjunction with the OATA Annual Symposium and Meeting Poster Presentations. Please enjoy this innovative research and letter from your President-Elect, Brian Huck.


Surgical Interventions For The Treatment Of Chiari Malformation Type I, Noah Pennypacker 2019 Kent State University

Surgical Interventions For The Treatment Of Chiari Malformation Type I, Noah Pennypacker

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5th Annual OATA Special Edition.


Collegiate Football Athlete Presents With Nontraditional Case Of Rhabdomyolysis And Secondary Finding Of Ureterocele, Kelly Ferian, Dane Eberle, Jake Woodruff, Elizabeth Walters, Karyn Gentile, Tricia Hamad 2019 Baldwin Wallace University

Collegiate Football Athlete Presents With Nontraditional Case Of Rhabdomyolysis And Secondary Finding Of Ureterocele, Kelly Ferian, Dane Eberle, Jake Woodruff, Elizabeth Walters, Karyn Gentile, Tricia Hamad

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5th Annual OATA Special Edition.


Socialization Into Athletic Training Student Leadership, Rachel Reinhart, Erika Smith-Goodwin 2019 Wilmington College

Socialization Into Athletic Training Student Leadership, Rachel Reinhart, Erika Smith-Goodwin

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

Please enjoy Volume 5, Issue 1 of the JSMAHS. In this issue you will find Professional and under graduate research abstracts, case reports, and critically appraised topics.

Thank you for viewing this 5th Annual OATA Special Edition.


Digital Commons powered by bepress