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

Biomechanics Commons

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

1,554 Full-Text Articles 2,581 Authors 605,983 Downloads 106 Institutions

All Articles in Biomechanics

Faceted Search

1,554 full-text articles. Page 2 of 71.

Reliability Of Popliteal Artery Flow-Mediated Dilation In The Seated Position, Taskina Akhter 2024 Old Dominion University

Reliability Of Popliteal Artery Flow-Mediated Dilation In The Seated Position, Taskina Akhter

Rehabilitation Sciences Theses & Dissertations

Flow-mediated dilation (FMD) is a noninvasive measurement of endothelial function, which is a useful prognostic tool for cardiovascular disease risk. Despite its widespread use since 1992, the reproducibility of FMD varies widely between studies. This variability in reproducibility is especially significant in the case of the popliteal artery due to different methodological approaches. Studies perform popliteal FMD in various body positions, with the prone and seated positions most common. However, no studies have examined the reproducibility of both the seated and prone positions of the popliteal artery FMD. Therefore, the aim of this study is to examine the test-retest and …


Lower Body Gait Variability As A Distinguishing Feature In Humans, Tyler M. Wiles, Seung Kyeom Kim, Nick Stergiou, Aaron D. Likens 2024 University of Nebraska at Omaha

Lower Body Gait Variability As A Distinguishing Feature In Humans, Tyler M. Wiles, Seung Kyeom Kim, Nick Stergiou, Aaron D. Likens

UNO Student Research and Creative Activity Fair

Most humans have a fingerprint that is unique and persists throughout life. The same may be true for gait. Each person is unique physiologically and biomechanically, and has experienced a unique progression of life including injuries, habits, hobbies, or lifestyles that all contribute to navigating the world. Those individualized experiences, whether intended or not, are potentially on display in gait. We hypothesized that there are gait characteristics intrinsic and unique to everyone, so that everyone has a unique “gaitprint”, similar to humans possessing unique fingerprints. To test our hypothesis, we recruited thirty healthy young adults between the ages 19-35 as …


Functional Outcomes Of Noninvasive Sensory Feedback In Upper Limb Prostheses: A Meta-Analysis, Libby Caldwell 2024 University of Nebraska at Omaha

Functional Outcomes Of Noninvasive Sensory Feedback In Upper Limb Prostheses: A Meta-Analysis, Libby Caldwell

UNO Student Research and Creative Activity Fair

Noninvasive sensory feedback applies vibration or pressure to the residual limb and is thought to improve the functionality of upper limb prostheses. However, the efficacy of this approach has not been sufficiently investigated, particularly regarding actual amputee efficacy. The purpose of this study was to evaluate the functional benefits of noninvasive sensory feedback in upper limb prostheses through a meta-analysis. Electronic databases (MEDLINE, Web of Science, and PubMed) were searched up to October 2022 using the following search terms: (prosthesis OR prosthetic) AND (hand OR arm OR forearm OR transradial OR “upper limb” OR “upper extremity) AND (tactile OR haptic …


Walking With A Load On Wheels: Potential Effects Of Bidirectional Springs On Walking Economy, Hiva Razavi, Philippe Malcolm 2024 University of Nebraska at Omaha

Walking With A Load On Wheels: Potential Effects Of Bidirectional Springs On Walking Economy, Hiva Razavi, Philippe Malcolm

UNO Student Research and Creative Activity Fair

Walking with a Load on Wheels: Potential Effects of Bidirectional Springs on Walking Economy

Have you ever noticed how your arms alternatively flex and extend when pushing a heavy shopping cart? Accelerating and decelerating heavy masses, such as a shopping cart, can require much effort. During walking, we alternatively accelerate and decelerate our Center of Mass (COM) in every gait cycle, which can require even more effort if we accelerate and decelerate a load while walking. Theoretically, this effort can be reduced by timing the acceleration and deceleration of the load's mass opposite to the individual's COM. Previous studies have …


Inter-Joint Variability And Age-Related Changes In Human Walking, Mehrnoush Haghighatnejad, Tyler Wiles, Seung Kyeom Kim, Aaron Likens, Nicholas Stergiou 2024 University of Nebraska at Omaha

Inter-Joint Variability And Age-Related Changes In Human Walking, Mehrnoush Haghighatnejad, Tyler Wiles, Seung Kyeom Kim, Aaron Likens, Nicholas Stergiou

UNO Student Research and Creative Activity Fair

Inter-Joint Variability and Age-Related Changes in Human Walking

Mehrnoush Haghighatnejad1*, Tyler M. Wiles1, Seung Kyeom Kim1, Nick Stergiou1,2, Aaron D. Likens1

1Department of Biomechanics, University of Nebraska at Omaha

2Department of Physical Education and Sport Science, Aristotle University, Thessaloniki, Greece

*Corresponding author’s email: mhaghighatnejad@unomaha.edu

Presentation Preference: Poster

Humans routinely perform a variety of activities such as walking, running, driving, and typing, all of which require coordination among different body joints. For instance, walking and running involve rhythmic movements of the arms and legs. The involvement of the upper …


Negative Impact Of Aging On Gait Autocorrelation: A Mixed-Effects Analysis Of Stride Interval Dynamics, Theodore Deligiannis, Tyler M. Wiles, Seung Kyeom Kim, Nikolaos Stergiou, Aaron Likens 2024 University of Nebraska at Omaha

Negative Impact Of Aging On Gait Autocorrelation: A Mixed-Effects Analysis Of Stride Interval Dynamics, Theodore Deligiannis, Tyler M. Wiles, Seung Kyeom Kim, Nikolaos Stergiou, Aaron Likens

UNO Student Research and Creative Activity Fair

NEGATIVE IMPACT OF AGING ON GAIT AUTOCORRELATION: A MIXED-EFFECTS ANALYSIS OF STRIDE INTERVAL DYNAMICS

Theodore A. Deligiannis1*, Tyler M. Wiles1, Seung Kyeom Kim1, Nick Stergiou1,2, Aaron D. Likens1

1Department of Biomechanics, University of Nebraska at Omaha

*Corresponding author’s email: tdeligiannis@unomaha.edu

Presentation preference: Podium

Traditional gait metrics, like speed, cadence, coordination, as well as non-linear measures, appear related to Timed Up and Go (TUG). Timed Up and Go is a clinical measurement related to physical, socioeconomic, and psychological parameters, as well as overall health. TUG can be used as a health …


Determining The Barriers To The Use Of Post-Match Fatigue Monitoring In The Rugby Codes: A Concept Mapping Study., Mitch Naughton, Tannath Scott, Dan Weaving, Scott McLean, Colin Solomon 2024 University of Newcastle

Determining The Barriers To The Use Of Post-Match Fatigue Monitoring In The Rugby Codes: A Concept Mapping Study., Mitch Naughton, Tannath Scott, Dan Weaving, Scott Mclean, Colin Solomon

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 5: Issue 1, Article 3, 2024. The rugby codes (i.e., rugby union, rugby league, rugby sevens [termed ‘rugby’]) are team-sports that impose complex physical demands upon players which in-turn, leads to domain-specific fatigue (e.g., neuromuscular, cardio-autonomic). Quantifying post-match fatigue through various methods and metrics is important to monitor player fatigue status, which influences training readiness. The specific and general barriers limiting the use of post-match fatigue monitoring in rugby are not presently known. Therefore, the aims of this study were to identify specific and general barriers (clusters of specific barriers) to the use …


Thrust Production And Chordal Flexion Of The Flukes Of Bottlenose Dolphins Performing Tail Stands At Different Efforts, David Kramer, Maura J. Sheehan, Frank E. Fish 2024 West Chester University of Pennsylvania

Thrust Production And Chordal Flexion Of The Flukes Of Bottlenose Dolphins Performing Tail Stands At Different Efforts, David Kramer, Maura J. Sheehan, Frank E. Fish

Biology Faculty Publications

Dolphins have become famous for their ability to perform a wide variety of athletic and acrobatic behaviors including high-speed swimming, maneuverability, porpoising and tail stands. Tail stands are a behavior where part of the body is held vertically above the water's surface, achieved through thrust produced by horizontal tail fluke oscillations. Strong, efficient propulsors are needed to generate the force required to support the dolphin's body weight, exhibiting chordwise and spanwise flexibility throughout the stroke cycle. To determine how thrust production, fluke flexibility and tail stroke kinematics vary with effort, six adult bottlenose dolphins (Tursiops truncatus) were tested at three …


Integrating Cannabis Education Into The Athletic Training Curriculum, Jeff G. Konin, Jimmy Onate 2024 Florida International University

Integrating Cannabis Education Into The Athletic Training Curriculum, Jeff G. Konin, Jimmy Onate

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

Context. Cannabis has become more prevalent in society and requires greater knowledge on the part of the athletic trainer. Objective. The purpose of this paper is to provide a framework for recognizing how cannabis education can be integrated into the athletic training curriculum utilizing the existing accreditation standards. Background. For decades the use of cannabis has been illegal. Athletes who were caught with cannabis in their system were penalized by their respective e sport organization body. During the past decade in the United States the federal government has moved toward decriminalization and expungement for those found with and …


Breaking Barriers And Building Confidence: Interprofessional Education's Impact On Allied Health Students' Competence And Self-Efficacy In Addressing Exercise Accessibility For People With Disabilities, Elizabeth A. Starns, Rebecca Wehler, Lindsay A. Church, Stephanie Kubiak 2024 Gannon University

Breaking Barriers And Building Confidence: Interprofessional Education's Impact On Allied Health Students' Competence And Self-Efficacy In Addressing Exercise Accessibility For People With Disabilities, Elizabeth A. Starns, Rebecca Wehler, Lindsay A. Church, Stephanie Kubiak

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

Purpose: The researchers’ objective was to evaluate the effectiveness of an interprofessional educational (IPE) program on student learning while addressing exercise accessibility barriers experienced by people living with disabilities (PLWD), including allied health professionals’ lack of practical experience, knowledge, and perceived competence and comfort working with PLWD in a fitness setting. Method: A qualitative explanatory single case study approach utilizing individual interviews was used. The individual interviews that explored how a collaboration between allied health students influenced learning, perceived comfort, and perceived competence working with PLWD were audio-recorded, transcribed verbatim and thematically analyzed. Results: Four major themes emerged: collaboration, comfort, …


Concussion-Related Symptomatology And Outcomes In Individuals With Mental Health Conditions: Symptom Number And Severity, Balance Performance, And Time Course To Discharge, Kathryn J. Schulze 2024 The University of Western Ontario

Concussion-Related Symptomatology And Outcomes In Individuals With Mental Health Conditions: Symptom Number And Severity, Balance Performance, And Time Course To Discharge, Kathryn J. Schulze

Electronic Thesis and Dissertation Repository

Symptomatology can overlap between concussions and common mental health conditions (MHCs) – such as anxiety, depression, and attention-deficit/hyperactivity disorder. Research determined that there can be an onset of new or worsening symptoms related to pre-existing MHCs in individuals post-concussion. Pre-existing MHCs may affect concussion outcomes. Therefore, the relationship between pre-existing MHCs and concussions was further examined. Study One examined the difference in symptom severity and number of symptoms reported at the initial clinical assessment for concussion for individuals with and without a pre-existing MHC. A chart review determined that individuals with anxiety or multiple MHCs had significantly more concussion symptoms …


Running Biomechanics Differ During And After Pregnancy Compared To Females Who Have Never Been Pregnant, Jennifer J. Bagwell, Elizabeth Avila, Nicholas Reynolds, Jo Armour Smith, Kevin Valenzuela, Dimitrios Katsavelis 2024 Creighton University

Running Biomechanics Differ During And After Pregnancy Compared To Females Who Have Never Been Pregnant, Jennifer J. Bagwell, Elizabeth Avila, Nicholas Reynolds, Jo Armour Smith, Kevin Valenzuela, Dimitrios Katsavelis

Physical Therapy Faculty Articles and Research

Background

Perinatal running participation has increased recently; however, pregnancy related symptoms can limit activity. Perinatal running biomechanics could inform interventions to help perinatal individuals maintain an active lifestyle.

Research question

Are perinatal running biomaechanics and muscle activation different compared to nulligravida females?

Methods

Sixteen pregnant participants completed self-selected velocity running during second trimester (2 T), third trimester (3 T), and postpartum (PP) and 16 matched controls completed these procedures once in this case control study. Kinematic, kinetic, and electromyography (EMG) data were collected using a motion capture system, force plates, and EMG electrodes. Peak trunk, pelvis, hip, knee, and ankle …


Tail Stand Supplementary Data, David Kramer, Frank E. Fish 2024 West Chester University of Pennsylvania

Tail Stand Supplementary Data, David Kramer, Frank E. Fish

Biology Data Repository

Dataset of flexibility of flukes related to tail stand effort of bottlenose dolphins (Tursiops truncatus)


Acute Ingestion Of Dark Chocolate Fails To Affect Running Economy In Recreational Female Runners, Bianca J. De Lucia, Beau Kjerulf Greer, Christopher B. Taber 2024 Sacred Heart University

Acute Ingestion Of Dark Chocolate Fails To Affect Running Economy In Recreational Female Runners, Bianca J. De Lucia, Beau Kjerulf Greer, Christopher B. Taber

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 5: Issue 1, Article 1, 2024. Ingestion of dark chocolate (DC), a dietary source high in flavanols, may increase nitric oxide bioavailability. Elevating blood nitric oxide concentrations may augment metabolic efficiency by reducing the amount of oxygen or energy needed to perform a given task. Utilizing a crossover design, the purpose of this study was to investigate the effect of acute ingestion of DC on running economy (RE). Nineteen recreationally trained females (age: 20±1 years) volunteered for this investigation, with 16 completing all procedures (n = 16). Two-hours before RE assessment, participants consumed …


Spin Turns, Frank E. Fish 2024 West Chester University of Pennsylvania

Spin Turns, Frank E. Fish

Biology Data Repository

Dataset of spin leaps of cetaceans determined by moment of inertia.


Simultaneous Evaluation Of Tibiofemoral And Patellofemoral Mechanics In Total Knee Arthroplasty: A Combined Experimental And Computational Approach, Yashar A. Behnam, Ahilan Anantha Krishnan, Hayden Wilson, Chadd W. Clary 2024 University of Denver

Simultaneous Evaluation Of Tibiofemoral And Patellofemoral Mechanics In Total Knee Arthroplasty: A Combined Experimental And Computational Approach, Yashar A. Behnam, Ahilan Anantha Krishnan, Hayden Wilson, Chadd W. Clary

Center for Orthopaedic Biomechanics: Faculty Scholarship

Contemporary total knee arthroplasty (TKA) has not fully restored natural patellofemoral (P-F) mechanics across the patient population. Previous experimental simulations have been limited in their ability to create dynamic, unconstrained, muscle-driven P-F articulation while simultaneously controlling tibiofemoral (T-F) contact mechanics. The purpose of this study was to develop a novel experimental simulation and validate a corresponding finite element model to evaluate T-F and P-F mechanics. A commercially available wear simulator was retrofitted with custom fixturing to evaluate whole-knee TKA mechanics with varying patella heights during a simulated deep knee bend. A corresponding dynamic finite element model was developed to validate …


Acute Ingestion Of Dark Chocolate Fails To Affect Running Economy In Recreationally Trained Female Runners, Bianca De Lucia, Beau K. Greer, Christopher B. Taber 2024 Sacred Heart University

Acute Ingestion Of Dark Chocolate Fails To Affect Running Economy In Recreationally Trained Female Runners, Bianca De Lucia, Beau K. Greer, Christopher B. Taber

PTHMS Graduate Publications

Ingestion of dark chocolate (DC), a dietary source high in flavanols, may increase nitric oxide bioavailability. Elevating blood nitric oxide concentrations may augment metabolic efficiency by reducing the amount of oxygen or energy needed to perform a given task. Utilizing a crossover design, the purpose of this study was to investigate the effect of acute ingestion of DC on running economy (RE). Nineteen recreationally trained females (age: 20±1 years) volunteered for this investigation, with 16 completing all procedures (n = 16). Two-hours before RE assessment, participants consumed either 42.5 g of DC or an isocaloric amount of white chocolate (WC) …


Chronic Training Load And Dorsiflexion Range Of Motion Throughout A Season In Professional American Soccer, Tristan L. Young 2024 Georgia Southern University

Chronic Training Load And Dorsiflexion Range Of Motion Throughout A Season In Professional American Soccer, Tristan L. Young

Electronic Theses and Dissertations

Soccer has an incredibly complex movement profile. Players experience various types of strains on their body from the requirement to land in awkward positions while maintaining the ability to quickly accelerate and decelerate. Dorsiflexion range of motion (DFROM) is of concern due to the movement profile and ball control that requires constant eccentric and concentric actions at the talocrural joint. With an American soccer season spanning across nine months these demands can contribute to overuse, which has been linked to restricted range of motion. Restricted DFROM and asymmetries have been identified as injury predictors, but their relationship to performance has …


Nonan Gaitprint: An Imu Gait Database Of Healthy Young Adults, Tyler M. Wiles, Madhur Mangalam, Joel H. Sommerfeld, Seung Kyeom Kim, Kolby J. Brink, Anaëlle Charles, Alli Grunkemeyer, Marilena Kalaitzi Manifrenti, Spyridon Mastorakis, Nicholas Stergiou, Aaron Likens 2023 University of Nebraska at Omaha

Nonan Gaitprint: An Imu Gait Database Of Healthy Young Adults, Tyler M. Wiles, Madhur Mangalam, Joel H. Sommerfeld, Seung Kyeom Kim, Kolby J. Brink, Anaëlle Charles, Alli Grunkemeyer, Marilena Kalaitzi Manifrenti, Spyridon Mastorakis, Nicholas Stergiou, Aaron Likens

Journal Articles

An ongoing thrust of research focused on human gait pertains to identifying individuals based on gait patterns. However, no existing gait database supports modeling efforts to assess gait patterns unique to individuals. Hence, we introduce the Nonlinear Analysis Core (NONAN) GaitPrint database containing whole body kinematics and foot placement during self-paced overground walking on a 200-meter looping indoor track. Noraxon Ultium MotionTM inertial measurement unit (IMU) sensors sampled the motion of 35 healthy young adults (19–35 years old; 18 men and 17 women; mean ± 1 s.d. age: 24.6 ± 2.7 years; height: 1.73 ± 0.78 m; body mass: …


Characterization Of Adipocyte Mechanical Properties And Stretch Control Of Mechanosignaling In Adipocytes, Tasneem Bouzid 2023 University of Nebraska-Lincoln

Characterization Of Adipocyte Mechanical Properties And Stretch Control Of Mechanosignaling In Adipocytes, Tasneem Bouzid

Dissertations and Doctoral Documents from University of Nebraska-Lincoln, 2023–

Obesity has reached global epidemic levels in recent decades and is the leading risk factor for type-2 diabetes (T2D). Adipose tissue behaves as a link between obesity and T2D, with dysfunctional extracellular matrix (ECM) remodeling, adipokine secretion and lipid metabolism leading to insulin resistance. The extracellular mechanophysical milieus is understood to regulate adipocyte differentiation and function through activation of mechanosensory machinery and related pathways. Therefore, exploring the adipocytic response to mechanical loading can provide great pathophysiological insight into obesity and T2D. Adipose tissue is exposed to various compound forces due to weight-bearing and movement, and adipocyte stiffness influences stress distribution …


Digital Commons powered by bepress