Biomechanics Commons^™

Développement D’Une Méthodologie Pour Évaluer La Performance Des Gants À Isoler Des Vibrations En Tenant Compte De La Dextérité Ainsi Que De La Force De Préhension, Pierre Marcotte, Subhash Rakheja, Christian Larivière, Yumeng Yao, Chantal Gauvin, Karim Hamouda, Hakim Mecheri

Rapports de recherche scientifique

L'efficacité des gants antivibrations pour réduire les vibrations transmises à la main est actuellement évaluée en laboratoire selon la méthodologie décrite dans la norme ISO 10819:2013. Cette norme évalue la transmission des vibrations à la paume de la main, mais ne tient pas compte de la transmission des vibrations aux doigts ni de l’effet du port de ces gants sur la dextérité manuelle et l’effort de préhension. Cette étude visait à développer une méthodologie afin d’améliorer l’évaluation de la transmission des vibrations par les gants antivibrations à la paume et aux doigts, tout en tenant compte de l’effet de ces …

Qualitative Analysis Of Colorectal Cancer Screening In Rural Nebraska, Kendra L. Ratnapradipa, Krishtee Napit, Jordan Ranta, Lady Beverly Luma, Danae Dinkel, Tamara Robinson, Laura Schabloske, Shinobu Watanabe-Galloway

Journal Articles

Compared to urban residents, rural populations are less likely to engage in colorectal cancer (CRC) screening. As part of a statewide cancer needs assessment, we aimed to elicit rural perspectives about CRC screening and resources. We conducted three focus groups with rural Nebraska cancer survivors and caregivers (N = 20) in Spring 2021 using a collective case study design. Participant awareness of and knowledge about CRC screening methods varied across focus groups; overall, 95% of participants had heard of colonoscopy. Participants were less familiar with fecal tests and had confusion about them. Colonoscopy was associated with negative perceptions regarding …

Qualitative Analysis Of Cancer Care Experiences Among Rural Cancer Survivors And Caregivers, Kendra L. Ratnapradipa, Jordan Ranta, Krishtee Napit, Lady Beverly Luma, Tamara Robinson, Danae Dinkel, Laura Schabloske, Shinobu Watanabe-Galloway

Journal Articles

Purpose

Rural (vs urban) patients experience poorer cancer outcomes and are less likely to be engaged in cancer prevention, such as screening. As part of a community needs assessment, we explored rural cancer survivors’ and caregivers’ experiences, perceptions, and attitudes toward cancer care services.

Methods

We conducted 3 focus groups (N = 20) in Spring 2021 in rural Nebraska.

Findings

Three patterns of cancer diagnosis were regular care/screening without noticeable symptoms, treatment for symptoms not initially identified as cancer related, and symptom self-identification. Most participants, regardless of how diagnosis was made, had positive experiences with timely referral for testing (imaging …

Self-Reported Arm Function Is Associated With Stress And Fear Of Physical Activity Among Women Treated For Breast Cancer, Mary Insana Fisher, Anne Fleischer, Kimberly Ulmer, Megan Mcclure, Renee Waldron, Lynn Difede

Physical Therapy Faculty Publications

Background: Self-reported upper extremity function and objective measures are not strongly associated with each other in women treated for breast cancer (BC). It is not known if the lack of relationship between self-reported upper extremity function and objective measurements may be influenced by perceived levels of stress and fear of physical activity. The purpose of this study was to investigate the relationships between self-reported upper extremity function and the following: perceived stress levels (PS), fear of physical activity (FPA), health-related quality of life (HRQOL), and objective measures of upper extremity function among women treated for BC.

Methods: This cross-sectional observational …

Mountains Of Evidence, Mary I. Fisher

Physical Therapy Faculty Publications

No abstract provided.

Knowledge Regarding Cancer-Related Fatigue: A Survey Of Physical Therapists And Individuals Diagnosed With Cancer, Shana Harrington, Mary Insana Fisher, Jeannette Lee, Joy C. Cohn, Daniel Malone

Physical Therapy Faculty Publications

Background: Cancer-related fatigue (CRF) is a common side effect and remains under-diagnosed. Screening of CRF by physical therapists (PTs) and patient perspectives of their experiences has not been comprehensively examined.

Purpose: To survey PTs to understand the frequency of CRF screening, and to assess the knowledge and experiences of survivors as it relates to CRF.

Methods: Two separate electronic surveys developed by the authors were distributed. One targeted oncology PTs, the other for adult survivors of cancer.

Results: Of the 199 PT respondents, 36% reported screening for CRF at every encounter. Screening included interviews (46%) and/or standardized questionnaires (37%). The …

Visuomotor Rotation Adaptation And Workspace Manipulation: A Behavioral And Cognitive Emphasis, Reuben N. Addison

LSU Doctoral Dissertations

This is a three-study dissertation in which we aimed to broaden our knowledge of the mechanisms contributing to a 45° clockwise visuomotor adaptation by including variations in workspace. We provide behavioral and in one study physiological outcomes as evidence to support our conclusions. In the first experiment, we observed the adaptation of movement parameters such as pathlength, movement time, resultant velocity, and normalized jerk across groups trained with rotated visual feedback with both the left and right hands. Workspace location and hand differentially affected movement trajectory length. The group that practiced the task with their nondominant, left hand showed larger …

Metabolically Efficient Walking Assistance Using Optimized Timed Forces At The Waist, Prokopios Antonellis, Arash Mohammadzadeh Gonabadi, Sara Myers, Iraklis Pipinos, Philippe Malcolm

Journal Articles

The metabolic rate of walking can be reduced by applying a constant forward force at the center of mass. It has been shown that the metabolically optimal constant force magnitude minimizes propulsion ground reaction force at the expense of increased braking. This led to the hypothesis that selectively assisting propulsion could lead to greater benefits. We used a robotic waist tether to evaluate the effects of forward forces with different timings and magnitudes. Here, we show that it is possible to reduce the metabolic rate of healthy participants by 48% with a greater efficiency ratio of metabolic cost reduction per …

The Optimal Relationship Between Actuator Stiffness And Actuation Timing For A Passive Ankle Exoskeleton: An Opensim Simulation, Cody Anderson, Hafizur Rahman, Sara Myers

UNO Student Research and Creative Activity Fair

Introduction

The passive ankle exoskeleton developed by Collins et al. (2015) reduced the metabolic cost of walking with an actuation-timing of ~16% of stance [1]; however, other actuation timings have not been extensively investigated. Therefore, the purpose of this study was to determine the optimal relationship between actuator-stiffness and actuation-timing for a passive ankle exoskeleton by using musculoskeletal modeling.

Methods

Kinematics and ground reaction forces were recorded while a healthy-young male walked on overground force-plates, and these data were exported to a musculoskeletal modeling software (OpenSim) for simulation. A passive ankle exoskeleton model was designed and integrated with a default …

Ankle Foot Orthoses Improves Ground Reaction Forces In Patients With Peripheral Artery Disease, Zahra Salamifar, Farah Fallahtafti, Iraklis Pipinos, Jason Johanning, Hafizur Rahman, Mahdi Hassan, Sara Myers

UNO Student Research and Creative Activity Fair

Peripheral artery disease (PAD) is caused by atherosclerotic blockage of the arteries in the legs. Globally, over 236 million people suffer from PAD. Intermittent claudication is the most common PAD symptom that includes muscle pain, cramping, and/or aching induced by physical activities and relieved with rest. PAD impacts gait patterns: specifically, rapid ankle plantar flexion after heel contact, which decreases optimal energy transfer. An ankle-foot orthosis (AFO) is an assistive device that improves gait in patients with neurological conditions. AFOs could help patients with PAD to improve walking kinetics. The purpose of this study was to determine the impact of …

Design And Development Of Software With A Graphical User Interface To Display And Convert Multiple Microscopic Histology Images, Sayed Ahmadreza Razian, Majid Jadidi, Alexey Kamenskiy

UNO Student Research and Creative Activity Fair

Histological images are widely used to assess the microscopic anatomy of biological tissues. Recent advancements in image analysis allow the identification of structural features on histological sections that can help advance medical device development, brain and cancer research, drug discovery, vascular mechanobiology, and many other fields. Histological slide scanners create images in SVS and TIFF formats that were designed to archive image blocks and high-resolution textual information. Because these formats were primarily intended for storage, they are often not compatible with conventional image analysis software and require conversion before they can be used in research. We have developed a user-friendly …

Muscle Forces And Power Are Significantly Reduced During Walking In Patients With Peripheral Artery Disease, Hafizur Rahman, Cody Anderson, Iraklis Pipinos, Jason Johanning, George P. Casale, Jianghu Dong, Holly Despiegelaere, Mahdi Hassan, Sara A. Myers

Journal Articles

Patients with peripheral artery disease (PAD) have significantly reduced lower extremity muscle strength compared with healthy individuals as measured during isolated, single plane joint motion by isometric and isokinetic strength dynamometers. Alterations to the force contribution of muscles during walking caused by PAD are not well understood. Therefore, this study used simulations with PAD biomechanics data to understand lower extremity muscle functions in patients with PAD during walking and to compare that with healthy older individuals. A total of 12 patients with PAD and 10 age-matched healthy older controls walked across a 10-meter pathway with reflective markers on their …

Scaling Of Maneuvering Performance In Baleen Whales: Larger Whales Outperform Expectations, Paolo S. Segre, William T. Gough, Edward A. Roualdes, David E. Cade, Max F. Czapanskiy, James Fahlbusch, Shirel R. Kahane-Rapport, William K. Oestreich, Lars Bejder, K. C. Bierlich, Julia A. Burrows, John Calambokidis, Ellen M. Chenoweth, Jacopo Di Clemente, John W. Durban, Holly Fearnbach, Frank E. Fish, Ari S. Friedlaender, Peter Hegelund, David W. Johnston, Douglas P. Nowacek, Machiel G. Oudejans, Gwenith S. Penry, Jean Potvin, Malene Simon, Andrew Stanworth, Janice M. Straley, Andrew Szabo, Simone K. A. Videsen, Fleur Visser, Caroline R. Weir, David N. Wiley, Jeremy A. Goldbogen

Biology Faculty Publications

Despite their enormous size, whales make their living as voracious predators. To catch their much smaller, more maneuverable prey, they have developed several unique locomotor strategies that require high energetic input, high mechanical power output and a surprising degree of agility. To better understand how body size affects maneuverability at the largest scale, we used bio-logging data, aerial photogrammetry and a high-throughput approach to quantify the maneuvering performance of seven species of free-swimming baleen whale. We found that as body size increases, absolute maneuvering performance decreases: larger whales use lower accelerations and perform slower pitch changes, rolls and turns than …

An Interactive Game With Virtual Reality Immersion To Improve Cultural Sensitivity In Health Care, Paul J. Hershberger, Yong Pei, Timothy N. Crawford, Sabrina M. Neeley, Thomas Wischgoll, Dixit B. Patel, Miteshkumar M. Vasoya, Angie Castle, Sankalp Mishra, Lahari Surapaneni, Aman A. Pogaku, Aishwarya Bositty, Todd Pavlack

Health and Sport Science Faculty Publications

Purpose: Biased perceptions of individuals who are not part of one's in-groups tend to be negative and habitual. Because health care professionals are no less susceptible to biases than are others, the adverse impact of biases on marginalized populations in health care warrants continued attention and amelioration.Method: Two characters, a Syrian refugee with limited English proficiency and a black pregnant woman with a history of opioid use disorder, were developed for an online training simulation that includes an interactive life course experience focused on social determinants of health, and a clinical encounter in a community health center utilizing virtual reality …

What Have We Learnt From Quantitative Case Reports Of Acute Lateral Ankle Sprains Injuries And Episodes Of 'Giving-Way' Of The Ankle Joint, And What Shall We Further Investigate?, Filip Gertz Lysdal, Yuehang Wang, Eamonn Delahunt, Dominic Gehring, Kyle B. Kosik, Tron Krosshaug, Yumeng Li, Kam-Ming Mok, Kati Pasanen, Alexandria Remus, Masafumi Terada, Daniel T. P. Fong

Athletic Training and Clinical Nutrition Faculty Publications

Lateral ankle sprains are a commonly incurred injury in sports. They have a high recurrence rate and can lead to the development of persistent injury associated symptoms. We performed a quantitative synthesis of published case reports documenting the kinematics of acute lateral ankle sprains and episodes of ‘giving-way’ of the ankle joint to provide a comprehensive description of the mechanisms. A systematic literature search was conducted to screen records within MEDLINE® and EMBASE®. Additional strategies included manual search of specific journals, as well as contacting researchers in relevant communities to retrieve unpublished data. Twenty-four cases were included in the quantitative …

Angular Momentum In Skilled Kicking Pullover Performed By Elementary School Children, Yutaka Shimizu, Saburo Nishimura, Shoichi Matsushita

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 3: Issue 1, Article 2, 2022. This study aimed to clarify the differences in body positions and the role of the swing leg, support leg, and head-arm-trunk segment in generating and maintaining angular momentum of the whole body about a horizontal bar as well as how to improve the skill level of successful kicking pullover attempts. Two-dimensional kinematic parameters of successful kicking pullover attempts and body composition indices of 26 fifth-grade elementary school children were collected. Their techniques were classified into excellent and good groups based on the subjective evaluation of three evaluators. …

Velocity-Based Training: Current Concepts And Future Directions, Toby Brooks, Wil Fleming, Larry Munger, Katie Munger

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology 3(1): Article 1, 2022. Velocity-based training (VBT) is a current approach to resistance training that relies on measured bar, implement, and/or athlete speed to formulate and adjust training for both long-term programming and daily training sessions. Relying on a number of available tools of varying levels of accuracy, VBT can help the strength and conditioning specialist and/or the rehabilitation professional to not only better predict strength and power over time, but also to adjust training loads in order to maximize training response in a given session. While the appeal and price points of available …

How Capuchin Monkeys Use Their Semi-Prehensile Tails, Madhur Mangalam, Callum F. Ross, Patricia Izar, Elisabetta Visalberghi, Dorothy M. Fragaszy

Journal Articles

Among primates, prehensile/semi-prehensile tails have evolved independently in the families Atelidae and Cebidae of the infraorder Platyrrhini (Neotropical monkeys). They facilitate maintaining stability during locomotion on thin, flexible branches and while reaching for food on challenging substrates. How a prehensile/semi-prehensile tail is coordinated with the hind limbs to facilitate controlled, flexible adoption of postures remains unknown. In an experimental set-up in the wild, we induced capuchin monkeys to adopt a tail-assisted, head-down tripodal posture to reach for food, documenting from slow-motion video recordings (120 fps) both qualitative changes in the monkeys’ positional behaviour – the relative orientation of their limbs …

A Kinematic And Emg Dataset Of Online Adjustment Of Reach-To-Grasp Movements To Visual Perturbations, Mariusz P. Furmanek, Madhur Mangalam, Matthew Yarossi, Kyle Lockwood, Eugene Tunik

Journal Articles

Control of reach-to-grasp movements for deft and robust interactions with objects requires rapid sensorimotor updating that enables online adjustments to changing external goals (e.g., perturbations or instability of objects we interact with). Rarely do we appreciate the remarkable coordination in reach-to-grasp, until control becomes impaired by neurological injuries such as stroke, neurodegenerative diseases, or even aging. Modeling online control of human reach-to-grasp movements is a challenging problem but fundamental to several domains, including behavioral and computational neuroscience, neurorehabilitation, neural prostheses, and robotics. Currently, there are no publicly available datasets that include online adjustment of reach-to-grasp movements to object perturbations. This …

Classifying Idiopathic Rapid Eye Movement Sleep Behavior Disorder, Controls, And Mild Parkinson's Disease Using Gait Parameters, Valérie Cochen De Cock, Dobromir Dotov, Sandy Lacombe, Marie Christine Picot, Florence Galtier, Valérie Driss, Castelnovo Giovanni, Christian Geny, Beatriz Abril, Loic Damm, Stefan Janaqi

Journal Articles

Background

Subtle gait changes associated with idiopathic rapid eye movement sleep behavior disorder (iRBD) could allow early detection of subjects with future synucleinopathies.

Objective

The aim of this study was to create a multiclass model, using statistical learning from probability distribution of gait parameters, to distinguish between patients with iRBD, healthy control subjects (HCs), and patients with Parkinson's disease (PD).

Methods

Gait parameters were collected in 21 participants with iRBD, 21 with PD, and 21 HCs, matched for age, sex, and education level. Lasso sparse linear regression explored gait features able to classify the three groups.

Results

The final model …