Clinical Update For Physical Therapists: Coagulopathy And Covid-19, Kathleen M. Lukaszewicz, Ellen Hillegass, Michael Puthoff, A. Kate Macphedran

Physical Therapy Faculty Research and Publications

Physical therapists have a unique role in both prevention of venous thromboembolism (VTE) through the promotion of early mobility and physical activity and diagnosis through discovery of signs and symptoms of VTE. This Perspective updates clinicians on the latest information regarding pathophysiology of coagulopathy associated with COVID-19 and applies VTE clinical practice guidelines to COVID-19 in order to provide guidance on physical therapist management.

Ampakines Stimulate Phrenic Motor Output After Cervical Spinal Cord Injury, L. B. Wollman, Kristi A. Streeter, A. F. Fusco, E. J. Gonzalez-Rothi, M. S. Sandhu, J. J. Greer, D. D. Fuller

Physical Therapy Faculty Research and Publications

Activation of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors increases phrenic motor output. Ampakines are a class of drugs that are positive allosteric modulators of AMPA receptors. We hypothesized that 1) ampakines can stimulate phrenic activity after incomplete cervical spinal cord injury (SCI), and 2) pairing ampakines with brief hypoxia could enable sustained facilitation of phrenic bursting. Phrenic activity was recorded ipsilateral (IL) and contralateral (CL) to C2 spinal cord hemisection (C2Hx) in anesthetized adult rats. Two weeks after C2Hx, ampakine CX717 (15 mg/kg, i.v.) increased IL (61 ± 46% baseline, BL) and CL burst amplitude (47 ± 26%BL) in 8 of 8 …

Two Weeks Of Remote Ischemic Conditioning Improves Brachial Artery Flow Mediated Dilation In Chronic Stroke Survivors, Allison S. Hyngstrom, Jennifer Nguyen, Michael Wright, Sergey Tarima, Brian D. Schmit, David D. Gutterman, Matthew J. Durand

Physical Therapy Faculty Research and Publications

Many stroke survivors have reduced cardiorespiratory fitness as a result of their stroke. Ischemic conditioning (IC) is a noninvasive, cost-effective, easy-to-administer intervention that can be performed at home and has been shown to improve both motor function in stroke survivors and vascular endothelial function in healthy individuals. In this study, we examined the effects of 2 wk of remote IC (RIC) on brachial artery flow mediated dilation (FMD) in chronic stroke survivors. We hypothesized that FMD would be improved following RIC compared with a sham RIC control group. This was a prospective, randomized, double-blinded, controlled study. Twenty-four chronic stroke survivors …

The Influence Of Autonomic Function On Pain Modulation Before And After Exercise And Cognitive Task In Fibromyalgia, Abdulaziz Awali

Dissertations (1934 -)

Fibromyalgia (FM) is a chronic pain condition characterized by widespread pain. People with FM have alterations in autonomic function compared to healthy individuals. Exercise can decrease pain in people with FM, however some people with FM experience pain exacerbation when initiating exercise. Whether variability in pain at rest and following exercise is related to altered autonomic function, including the potential implications with other stressful events such as mental math, is not known. This dissertation aimed at investigating: 1) the relation between cardiovascular autonomic function and central pain facilitation and inhibition, measured by temporal summation of pain (TS) and conditioned pain …

Who Is Wearing A Mask? Gender-, Age-, And Location-Related Differences During The Covid-19 Pandemic, Mike Haischer, Rachel Beilfuss, Meggie Rose Hart, Lauren Opielinski, David Wrucke, Gretchen Zirgaitis, Toni D. Urich, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Masks are an effective tool in combatting the spread of COVID-19, but some people still resist wearing them and mask-wearing behavior has not been experimentally studied in the United States. To understand the demographics of mask wearers and resistors, and the impact of mandates on mask-wearing behavior, we observed shoppers (n = 9935) entering retail stores during periods of June, July, and August 2020. Approximately 41% of the June sample wore a mask. At that time, the odds of an individual wearing a mask increased significantly with age and was also 1.5x greater for females than males. Additionally, the …

Time-Frequency Analysis Of Muscle Activation Patterns In People With Chronic Ankle Instability During Landing And Cutting Tasks, Hoon Kim, Rianna M. Palmieri-Smith, Kristof Kipp

Exercise Science Faculty Research and Publications

Background

People with chronic ankle instability (CAI) exhibit neuromuscular deficits. Previous studies, however, only investigated magnitudes of muscle activation and not the time-frequency domain.

Research question

Do people with CAI exhibit differences in muscle activation patterns in the time-frequency domain during landing, anticipated cutting, and unanticipated cutting compared to matched controls?

Methods

Eleven people with CAI and eleven healthy matched controls (CON) performed landing, anticipated cutting, and unanticipated cutting as surface EMG of the lateral gastrocnemius, medial gastrocnemius, fibularis longus, soleus, and tibialis anterior were recorded. The time-frequency domain of surface EMG data was analyzed with wavelet transformations and principal …

Greater Fatigue Resistance Of Dorsiflexor Muscles In People With Prediabetes Than Type 2 Diabetes, Jonathon Senefeld, Lynette A. Singh-Peters, Kenji A. Kenno, Sandra K. Hunter, Jennifer M. Jakobi

Exercise Science Faculty Research and Publications

Although exercise can prevent progression to T2D among people with prediabetes, little is known about fatigue during exercise in people with prediabetes compared to T2D. The purpose of the study was to compare the magnitude and mechanisms of fatigability of the ankle dorsiflexor muscles between people with prediabetes and T2D. Ten people with prediabetes (6 females, 51.7 ± 6.9 years) and fourteen with T2D (6 females, 52.6 ± 6.2 years) who were matched for age, body mass index and physical activity performed an intermittent (6 s contraction: 4 s relaxation) fatiguing task at 75% maximal voluntary contraction (MVC) with the …

Exercise And Lifestyle Physical Activity Recommendations For People With Multiple Sclerosis Throughout The Disease Course, Rosalind Kalb, Theodore R. Brown, Susan Coote, Kathleen Costello, Ulrik Dalgas, Eric Garmon, Barbara Geisser, June Halper, Herb Karpatkin, Jennifer Keller, Alexander V. Ng, Lara A. Pilutti, Amanda Rohring, Paul Van Asch, Kathleen Zachowski, Robert W. Motl

Exercise Science Faculty Research and Publications

Objectives:

To provide clinicians who treat multiple sclerosis (MS) patients with evidence-based or expert opinion–based recommendations for promoting exercise and lifestyle physical activity across disability levels.

Methods:

The National MS Society (“Society”) convened clinical and research experts in the fields of MS, exercise, rehabilitation, and physical activity to (1) reach consensus on optimal exercise and lifestyle physical activity recommendations for individuals with MS at disability levels 0–9.0 on the Expanded Disability Status Scale (EDSS) and (2) identify and address barriers/facilitators for participation.

Recommendations:

Based on current evidence and expert opinion, the Society makes the following recommendations, endorsed by the Consortium …

Impaired Firing Behavior Of Individually Tracked Paretic Motor Units During Fatiguing Contractions Of The Dorsiflexors And Functional Implications Post Stroke, Francesco Negro, Kathleen Bathon, Jennifer Nguyen, Cassidy Bannon, Claudio Orizio, Sandra K. Hunter, Allison S. Hyngstrom

Exercise Science Faculty Research and Publications

Introduction: This study quantified stroke-related changes in the following: (1) the averaged discharge rate of motor units (individually tracked and untracked) identified from high-density electromyography (HD-EMG) recordings, (2) global muscle EMG properties of the dorsiflexors during a fatiguing contraction, and the relationship between task endurance and measures of leg function.

Methods: Ten individuals with chronic stroke performed a sustained sub-maximal, isometric, fatiguing dorsiflexion contraction in paretic and non-paretic legs. Motor-unit firing behavior, task duration, maximal voluntary contraction strength (MVC), and clinical measures of leg function were obtained.

Results: Compared to the non-paretic leg, the paretic leg task duration was shorter, …

Pain Modulatory Effects Of Exercise In Chronic Pain, Giovanni Berardi

Dissertations (1934 -)

Exercise training is recommended as a first-line treatment in the management of fibromyalgia due to its ability to improve symptoms and function. However, many with fibromyalgia report limited tolerance to exercise due to exacerbation of pain and fatigue during and following participation of a single bout of exercise. The purpose of this dissertation was to determine the influence of contraction type on local and systemic experimental pain sensitivity, performance fatigue, and perceived pain and fatigue during exercise and through recovery in people with and without fibromyalgia.Experimental and perceived pain were measured before and after a single bout of submaximal intermittent …

Experimental & Simulation Approaches To Study Neuromuscular Control In People With Chronic Ankle Instability, Hoon Kim

Dissertations (1934 -)

Ankle sprains are among the most common musculoskeletal injuries, and up to 70% of people who sprain their ankles develop chronic ankle instability (CAI). Moreover, people who develop CAI have a significantly higher risk of developing ankle osteoarthritis. Recent research has identified neuromuscular deficits that may be responsible for the high recurrence rates of ankle sprains and for the progression towards ankle osteoarthritis in people with CAI. Unfortunately, current rehabilitation strategies are not completely successful because the mechanisms responsible for these deficits are not fully elucidated. Therefore, the purpose of this dissertation was to investigate individual muscle forces and force …

A Discrete-Choice Experiment To Assess Patients’ Preferences For Osteoarthritis Treatment: An Esceo Working Group, Mickael Hiligsmann, Elaine Dennison, Charlotte Beaudart, Gabriel Herrero-Beaumont, Jaime Branco, Olivier Bruyère, Philip G. Conaghan, Cyrus Cooper, Nasser Al-Daghri, Famida Jiwa, Willem Lems, Daniel Pinto, René Rizzoli, Thierry Thomas, Daniel Uebelhart, Nicolas Veronese, Jean-Yves Reginster

Physical Therapy Faculty Research and Publications

Objective

To evaluate the preferences of patients with osteoarthritis for treatment.

Methods

A discrete-choice experiment was conducted among adult OA patients who were presented with 12 choice sets of two treatment options and asked in each to select the treatment they would prefer. Based on literature reviews, expert consultation, patient survey and expert meeting, treatment options were characterized by seven attributes: improvement in pain, improvement in walking, ability to manage domestic activities, ability to manage social activities, improvement in overall energy and well-being, risk of moderate/severe side effects and impact on disease progression. Random parameters logit model was used to …

Direct Healthcare Costs Associated With Oligoarticular Juvenile Idiopathic Arthritis At A Single Center, Amit Thakral, Daniel Pinto, Michael Miller, Megan L. Curran, Marisa Klein-Gitelman, Dustin D. French

Physical Therapy Faculty Research and Publications

Oligoarticular juvenile idiopathic arthritis (JIA) is a common disease in pediatric rheumatology. The management of oligoarticular JIA can result in a considerable economic burden. This study is a four-year, retrospective cost identification analysis performed to determine the annual direct cost of care for patients with oligoarticular JIA and possible predictive clinical factors. Direct healthcare costs were defined as those associated with office visits, laboratory studies, hospital admissions, joint injections, medications, infusions, radiology tests, and emergency room visits. Disease characteristics and patient information included ANA status, gender, age at diagnosis, duration from diagnosis to initial visit during the study period, and …

Greater Fatigability And Motor Unit Discharge Variability In Human Type 2 Diabetes, Jonathon Senefeld, Kevin G. Keenan, Kevin S. Ryan, Sarah E. D'Astice, Francesco Negro, Sandra K. Hunter

Exercise Science Faculty Research and Publications

This study determined the discharge characteristics of motor units from two lower limb muscles before and after fatiguing exercise in people with type 2 diabetes (T2D) with no symptoms of polyneuropathy and activity-matched controls. Seventeen people with T2D (65.0 ± 5.6 years; 8 women) and 17 controls (63.6 ± 4.5 years; 8 women) performed: (a) intermittent, isometric contractions at 50% maximal voluntary isometric contraction (MVIC) sustained to failure with the ankle dorsiflexors, and (b) a dynamic fatiguing task (30% MVIC load) for 6 min with the knee extensors. Before and after the fatiguing tasks, motor unit characteristics (including coefficient of …

Ca2+ Dependency Of Limb Muscle Fiber Contractile Mechanics In Young And Older Adults, Laura E. Teigen, Christopher W. Sundberg, Lauren J. Kelly, Sandra K. Hunter, Robert H. Fitts

Exercise Science Faculty Research and Publications

Age-induced declines in skeletal muscle contractile function have been attributed to multiple cellular factors, including lower peak force (P_o), decreased Ca²⁺ sensitivity, and reduced shortening velocity (V_o). However, changes in these cellular properties with aging remain unresolved, especially in older women, and the effect of submaximal Ca²⁺ on contractile function is unknown. Thus, we compared contractile properties of muscle fibers from 19 young (24 ± 3 yr; 8 women) and 21 older adults (77 ± 7 yr; 7 women) under maximal and submaximal Ca²⁺ and assessed the abundance of three proteins thought to …

Submaximal Isometric Force Steadiness In People With Multiple Sclerosis Under Single And Dual Task Conditions, Sheri Bunyan

Dissertations (1934 -)

Activities of daily living require steady, non-fatiguing, isometric muscular contractions to maintain postural control and stabilize body segments to facilitate interaction with the environment. Furthermore, typical activities often require simultaneous performance of cognitive and motor tasks. This may challenge people with multiple sclerosis, a chronic neurodegenerative disease of the central nervous system associated with motor and cognitive impairments. Despite functional relevance, isometric force steadiness in both the upper and lower extremities has not been explored in this population. Additionally, dual task experiments in multiple sclerosis have primarily used gait, a dynamic activity, as the motor task. Thus, the purpose of …

Temporal Aspects Of Endogenous Pain Modulation During A Noxious Stimulus Prolonged For 1 Day, Marie K. Hoeger Bement, Kristian K. Petersen, Line B. Sørensen, Hjalte H. Andersen, Thomas Graven-Nielsen

Physical Therapy Faculty Research and Publications

Background

This study investigated (a) if a prolonged noxious stimulus (24‐hr topical capsaicin) in healthy adults would impair central pain inhibitory and facilitatory systems measured as a reduction in conditioned pain modulation (CPM) and enhancement of temporal summation of pain (TSP) and (b) if acute pain relief or exacerbation (cooling and heating the capsaicin patch) during the prolonged noxious stimulus would affect central pain modulation.

Methods

Twenty‐eight participants (26.2 ± 1.0 years; 12 women) wore a transdermal 8% capsaicin patch on the forearm for 24 hr. Data were collected at baseline (Day 0), 1 hr, 3 hr, Day 1 (post‐capsaicin …

Determinants Of Low Bone Mineral Density In People With Multiple Sclerosis: Role Of Physical Activity, Brice T. Cleland, Paula E. Papanek, Benjamin A. Ingraham, April L. Harkins, Mauricio Garnier-Villarreal, Douglas Woo, Mary Ellen Csuka, Alexander V. Ng

Exercise Science Faculty Research and Publications

Background

People with multiple sclerosis (PwMS) have reduced bone mineral density (BMD), but the causes are unclear. Some factors that may cause reduced BMD in PwMS have been understudied, including physical activity, inflammation, cortisol, symptomatic fatigue, and depression. The aim of this study was to investigate factors that may uniquely contribute to reduced BMD in PwMS as compared to people without MS. We hypothesized that physical activity would be the primary determinant of low BMD in PwMS, with additional contributions from inflammation and sympathetic nervous system activation.

Methods

We tested 23 PwMS (16 women; median EDSS: 2) and 22 control …

Increased Cardiovascular Response To A 6-Minute Walk Test In People With Type 2 Diabetes, Jonathon Senefeld, Sarah E. D'Astice, Alison R. Harmer, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Background and objective

Exercise is a cornerstone of management for type 2 diabetes; however, little is known about the cardiovascular (CV) response to submaximal functional exercise in people with type 2 diabetes. The aim of this study was to compare performance and CV response during a 6-minute walk test (6MWT) between people with type 2 diabetes and matched control subjects.

Methods

CV response and distance walked during the 6MWT were assessed in 30 people with type 2 diabetes, matched for age, body composition, physical activity, and estimated aerobic capacity with 34 control subjects (type 2 diabetes group: 16 men, 59.8 …

Efficacy Of Osteoporosis Prevention Smartphone App, Polly Ryan, Roger L. Brown, Mary Ellen Csuka, Paula E. Papanek

Exercise Science Faculty Research and Publications

Background

The Striving to be Strong study tested the efficacy of a multifaceted, theory-based, complex osteoporosis prevention smartphone application (app). We hypothesized use of the app would improve bone mineral density and trabecular bone scores.

Methods

The study was a three-group, prospective, repeated-measure, longitudinal randomized trial. Baseline sample consisted of 290 healthy women between 40 and 60 years of age. Participants were randomly assigned to one of three groups: “Striving,” a dynamically tailored, person-centered app; “Boning Up,” a standardized osteoporosis-education e-book; and “Wait List,” a participant’s choice of intervention in the final 3 months of the 12-month study. Participants had …

Feasibility And Acceptability Of A Self-Report Activity Diary In Families Of Children With And Without Special Needs, Bethany Forseth, Paula E. Papanek, Linda Bandini, Dale A. Schoeller, Andrea Moosreiner, Kathleen J. Sawing, Kimberley Zvara, Michael Fendrich, Michele Polfuss

Exercise Science Faculty Research and Publications

This study was conducted to examine the feasibility and acceptability of a self-report activity diary completed by parents and older children to assess the child's daily activity in children with and without special needs. The study included 36 child/parent dyads stratified by child age and diagnosis. Parents (n = 36) and children ≥13 years (n = 12) were asked to report on the child's daily activity using an activity diary. Feasibility was determined based on successfully returned diaries and acceptability via post-study interview. Activity diaries were submitted by 94% of the parents and 100% of the children, with 83% and …

Energy Cost Of Slow And Normal Gait Speeds In Low And Normally Functioning Adults, Taylor W. Rowley, Chi Cho, Ann M. Swartz, John Staudenmayer, Allison S. Hyngstrom, Kevin G. Keenan, Whitney A. Welch, Scott J. Strath

Physical Therapy Faculty Research and Publications

Objective

Slow walking speed paired with increased energy cost is a strong predictor for mortality and disability in older adults but has yet to be examined in a heterogeneous sample (ie, age, sex, disease status). The aim of this study was to examine energy cost of slow and normal walking speeds among low- and normal-functioning adults.

Design

Adults aged 20–90 yrs were recruited for this study. Participants completed a 10-m functional walk test at a self-selected normal walking speed and were categorized as low functioning or normal functioning based on expected age- and sex-adjusted average gait speed. Participants completed two …

The Impact Of Isometric Exercise On Somatosensory Processing In People With Or Without Chronic Pain, Ali Mohammed Alsouhibani

Dissertations (1934 -)

Despite an increase in our understanding of the pathomechanisms of chronic pain and the advancement of new treatments, pharmacological management of chronic pain remains poor. This presents the need for non-pharmacological treatments and understanding their efficacy and mechanisms in managing pain. The purpose of this dissertation was to examine the effects of isometric exercise on the somatosensory system and other biopsychosocial aspects related to pain in individuals with and without fibromyalgia. The first aim was to determine whether isometric exercise improves pain inhibitory mechanisms and vibration sense. The second aim was to determine what biopsychosocial factors influence pain relief following …

Sex Differences In Fatigability And Recovery Relative To The Intensity–Duration Relationship, Paul Ansdell, Paul Ansdell, Callum G. Brownstein, Jakob Škarabot, Kristy M. Hicks, Glyn Howatson, Kevin Thomas, Sandra K. Hunter, Stuart Goodall

Exercise Science Faculty Research and Publications

Females are less fatigable than males during isometric exercise at intensities relative to maximal voluntary contraction (MVC); however, whether a sex difference in fatigability exists when exercise is prescribed relative to a critical intensity is unknown. This study established the intensity–duration relationship, and compared fatigability and recovery between sexes following intermittent isometric contractions normalised to critical intensity. Twenty participants (10 females) completed four intermittent isometric knee extension trials to task failure to determine critical intensity and the curvature constant (W′), followed by fatiguing tasks at +10% and −10% relative to critical intensity. Neuromuscular assessments were completed at baseline …

Practical Guidance For Engaging Patients In Health Research, Treatment Guidelines And Regulatory Processes: Results Of An Expert Group Meeting Organized By The World Health Organization (Who) And The European Society For Clinical And Economic Aspects Of Osteoporosis, Osteoarthritis And Musculoskeletal Diseases (Esceo), Maarten De Wit, Cyrus Cooper, Peter Tugwell, Nathalie Bere, John Kirwan, Philip G. Conaghan, Charlotte Roberts, Isabelle Aujoulat, Nasser Al-Daghri, Islene Arajujo De Carvalho, Mary Barker, Nicola Bedlington, Maria Luisa Brandi, Olivier Bruyère, Nansa Burlett, Philippe Halbout, Mickaël Hiligsmann, Famida Jiwa, John A. Kanis, Andrea Laslop, Wendy Lawrence, Daniel Pinto, Concepción Prieto Yerro, Véronique Rabenda, René Rizzoli, Marieke Scholte-Voshaar, Mila Vlaskovska, Jean-Yves Reginster

Physical Therapy Faculty Research and Publications

There is increasing emphasis on patient-centred research to support the development, approval and reimbursement of health interventions that best meet patients’ needs. However, there is currently little guidance on how meaningful patient engagement may be achieved. An expert working group, representing a wide range of stakeholders and disciplines, was convened by the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO) and the World Health Organization (WHO). Through a structured, collaborative process the group generated practical guidance to facilitate optimal patient engagement in clinical development and regulatory decisions. Patient engagement is a relational process. The …

Differential Effects Of Aging And Physical Activity On Corticospinal Excitability Of Upper And Lower Limb Muscles, Vianney Rozand, Jonathon William Senefeld, Christopher W. Sundberg, Ashleigh E. Smith, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Corticospinal tract excitability can be altered by age, physical activity (PA), and possibly sex, but whether these effects differ between upper and lower limb muscles is unknown. We determined the influence of age, PA, and sex on corticospinal excitability of an upper limb and a lower limb muscle during submaximal contractions by comparing stimulus-response curves of motor evoked potentials (MEPs). Transcranial magnetic stimulation (TMS) was used to evoke stimulus-response curves in active muscles by incrementally increasing the stimulator intensity from below the active motor threshold (AMT) until a plateau in MEP amplitudes was achieved. Stimulus-response curves were analyzed from the …

The Role Of Movement Pattern In Relation To Running Related Injuries Risk Factors, Marwan Mahmoud A Aljohani

Dissertations (1934 -)

About 52.3 million American run on a regular basis. Up to 79% of runners get injured every year and the rate of injury has not declined over the past decades. Females have twice the risk of developing a running related injury (RRI). Rate of loading (ROL), tibial impact shock (TIS), and low movement variability may contribute to the development of RRI. Not much is known, however, about the relationships between impact kinetics (i.e. ROL, TIS) and movement variability. In addition, there is a lack of understanding about the effects of sex and speed on the aforementioned RRI risk factors. Therefore, …

Practical Guidance For Engaging Patients In Health Research, Treatment Guidelines And Regulatory Processes: Results Of An Expert Group Meeting Organized By The World Health Organization (Who) And The European Society For Clinical And Economic Aspects Of Osteoporosis, Osteoarthritis And Musculoskeletal Diseases (Esceo), Maarten De Wit, Cyrus Cooper, Peter Tugwell, Nathalie Bere, John Kirwan, Philip G. Conaghan, Charlotte Roberts, Isabelle Aujoulat, Nasser Al-Daghri, Islene Arajujo De Carvalho, Mary Barker, Nicola Bedlington, Maria Luisa Brandi, Olivier Bruyère, Nansa Burlett, Philippe Halbout, Mickaël Hiligsmann, Famida Jiwa, John A. Kanis, Andrea Laslop, Wendy Lawrence, Daniel Pinto, Concepción Prieto Yerro, Véronique Rabenda, René Rizzoli, Marieke Scholte-Voshaar, Mila Vlaskovska, Jean-Yves Reginster

Physical Therapy Faculty Research and Publications

There is increasing emphasis on patient-centred research to support the development, approval and reimbursement of health interventions that best meet patients’ needs. However, there is currently little guidance on how meaningful patient engagement may be achieved. An expert working group, representing a wide range of stakeholders and disciplines, was convened by the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO) and the World Health Organization (WHO). Through a structured, collaborative process the group generated practical guidance to facilitate optimal patient engagement in clinical development and regulatory decisions. Patient engagement is a relational process. The …

The Relationship Between Blood Flow And Motor Unit Firing Rates In Response To Fatiguing Exercise Post-Stroke, Spencer Murphy, Matthew J. Durand, Francesco Negro, Dario Farina, Sandra K. Hunter, Brian D. Schmit, David D. Gutterman, Allison S. Hyngstrom

Exercise Science Faculty Research and Publications

We quantified the relationship between the change in post-contraction blood flow with motor unit firing rates and metrics of fatigue during intermittent, sub-maximal fatiguing contractions of the knee extensor muscles after stroke. Ten chronic stroke survivors (>1-year post-stroke) and nine controls participated. Throughout fatiguing contractions, the discharge timings of individual motor units were identified by decomposition of high-density surface EMG signals. After five consecutive contractions, a blood flow measurement through the femoral artery was obtained using an ultrasound machine and probe designed for vascular measurements. There was a greater increase of motor unit firing rates from the beginning of …

Does Weight Status Impact Metabolic Health In Adolescents When Controlling For Physical Fitness?, Stacy Stolzman, Joseph Skelton, April L. Harkins, Marie K. Hoeger Bement

Physical Therapy Faculty Research and Publications

Purpose:

To determines whether adolescents who are fit with overweight/obesity are similar in their metabolic profile to adolescents who are fit and normal weight.

Methods:

Adolescents participated in 3 sessions: (1) resting vitals and anthropometrics; (2) maximal aerobic treadmill test () to determine physical fitness; and (3) dual-energy x-ray absorptiometry and fasting laboratory draw for analysis of insulin, glucose, high-density lipoprotein, triglycerides, and C-reactive protein.

Results:

Of the 30 fit adolescents who are normal weight and 16 adolescents who are fit and overweight/obese (OW/OB), metabolic syndrome was apparent in 1 adolescent who are normal weight and 4 adolescents who are …