Physical Therapy Commons^™

The Effect Of Movement Rate And Complexity On Functional Magnetic Resonance Signal Change During Pedaling, Jay P. Mehta, Matthew D. Verber, Jon A. Wieser, Brian D. Schmit, Sheila M. Schindler-Ivens

Physical Therapy Faculty Research and Publications

We used functional magnetic resonance imaging (fMRI) to record human brain activity during slow (30 RPM), fast (60 RPM), passive (30 RPM), and variable rate pedaling. Ten healthy adults participated. After identifying regions of interest, the intensity and volume of brain activation in each region was calculated and compared across conditions (p < .05). Results showed that the primary sensory and motor cortices (S1, M1), supplementary motor area (SMA), and cerebellum (Cb) were active during pedaling. The intensity of activity in these areas increased with increasing pedaling rate and complexity. The Cb was the only brain region that showed significantly lower activity during passive as compared with active pedaling. We conclude that M1, S1, SMA, and Cb have a role in modifying continuous, bilateral, multijoint lower extremity movements. Much of this brain activity may be driven by sensory signals from the moving limbs.

Corticomotor Excitability During A Noxious Stimulus And Following Exercise In Women With Fibromyalgia, Marie K. Hoeger Bement, Andy Weyer, Tejin Yoon, Sandra K. Hunter

Physical Therapy Faculty Research and Publications

No abstract provided.

Push-Pull Control Of Motor Output, Michael D. Johnson, Allison S. Hyngstrom, Marin Manuel, C J. Heckman

Physical Therapy Faculty Research and Publications

Inhibition usually decreases input–output excitability of neurons. If, however, inhibition is coupled to excitation in a push–pull fashion, where inhibition decreases as excitation increases, neuron excitability can be increased. Although the presence of push–pull organization has been demonstrated in single cells, its functional impact on neural processing depends on its effect on the system level. We studied push–pull in the motor output stage of the feline spinal cord, a system that allows independent control of inhibitory and excitatory components. Push–pull organization was clearly present in ankle extensor motoneurons, producing increased peak-to-peak modulation of synaptic currents. The effect at the system …

The Graded Redefined Assessment Of Strength Sensibility And Prehension: Reliability And Validity., Sukhvinder Kalsi-Ryan, Dorcas Beaton, Armin Curt, Susan Duff, Milos R Popovic, Claudia Rudhe, Michael G Fehlings, Mary C Verrier

Department of Physical Therapy Faculty Papers

Abstract With the advent of new interventions targeted at both acute and chronic spinal cord injury (SCI), it is critical that techniques and protocols are developed that reliably evaluate changes in upper limb impairment/function. The Graded Redefined Assessment of Strength Sensibility and Prehension (GRASSP) protocol, which includes five subtests, is a quantitative clinical upper limb impairment measure designed for use in acute and chronic cervical SCI. The objectives of this study were to: (1) establish the inter-rater and test-retest reliability, and (2) establish the construct and concurrent validity with the International Standards of Neurological Classification of Spinal Cord Injury (ISNCSCI), …

Effect Of A Single High-Fat Meal And Vitamins On The Circulatory Response To Local Heat In Koreans And Caucasians, Jongeun Yim

Loma Linda University Electronic Theses, Dissertations & Projects

Blood flow mediated by the vascular endothelium plays an important role in removing heat from the skin. Asians who have thrifty genes have impaired endothelial function (EF) due to the westernized high fat (HF) dietary lifestyle. Hypertriglyceridemia (HTG) can produce free radicals which reduces the bioavailability of the endothelium derived relaxing factor, nitric oxide (NO). EF, as measured by the blood flow response (BFR) to heat, occlusion and the free radical concentration after a single HF meal has not been studied in Korean-Asians compared to Caucasians. The purpose of this study was to evaluate baseline and postprandial EF as related …

Supraspinal Fatigue Impedes Recovery From A Low-Intensity Sustained Contraction In Old Adults, Tejin Yoon, Bonnie Schlinder-Delap, Manda L. Keller, Sandra K. Hunter

Exercise Science Faculty Research and Publications

This study determined the contribution of supraspinal fatigue and contractile properties to the age difference in neuromuscular fatigue during and recovery from a low-intensity sustained contraction. Cortical stimulation was used to evoke measures of voluntary activation and muscle relaxation during and after a contraction sustained at 20% of maximal voluntary contraction (MVC) until task failure with elbow flexor muscles in 14 young adults (20.9 ± 3.6 yr, 7 men) and 14 old adults (71.6 ± 5.4 yr, 7 men). Old adults exhibited a longer time to task failure than the young adults (23.8 ± 9.0 vs. 11.5 ± 3.9 min, …

Vitamin D And Brain Imaging In The Elderly: Should We Expect Some Lesions Specifically Related To Hypovitaminosis D?, Cédric Annweiler, Manuel Montero-Odasso, Susan W Muir, Olivier Beauchet

Physical Therapy Publications

Hypovitaminosis D is associated with cognitive decline in the elderly, but the issue of causality remains unresolved. Definitive evidence would include the visualization of brain lesions resulting from hypovitaminosis D. The aim of the present article is to determine, through a literature review, the location and nature of possible brain disorders in hypovitaminosis D. We found limited brain-imaging data, which reported ischemic infarcts and white matter hyperintensities in hypovitaminosis D, though did not provide their specific location or report any focal atrophy. Based on the finding of executive dysfunctions (i.e., mental shifting and information updating impairments) in the presence of …

A Prototype Head-Motion Monitoring System For In-Home Vestibular Rehabilitation Therapy, Pamela T. Bhatti, Susan J. Herdman, Siddarth Datta Roy, Courtney D. Hall, Ronald J. Tusa

ETSU Faculty Works

This work reports the use of a head-motion monitoring system to record patient head movements while completing in-home exercises for vestibular rehabilitation therapy. Based upon a dual-axis gyroscope (yaw and pitch, ± 500-degrees/sec maximum), angular head rotations were measured and stored via an on-board memory card. The system enabled the clinician to document exercises at home. Several measurements were recorded in one patient with unilateral vestibular hypofunction: The total time of exercise for the week (118 minutes) was documented and compared with expected weekly exercise time (140 minutes). For gaze stabilization exercises, execution time of 60 sec was expected, and …

Aging And The Motor Unit, J. Bunn

Physical Therapy

No abstract provided.

Preventing Muscle Atrophy With Protein And Amino Acid Supplementation, J. Bunn

Physical Therapy

No abstract provided.

Reliability Of A Seated Three-Dimensional Passive Intervertebral Motion Test For Mobility, End-Feel, And Pain Provocation In Patients With Cervicalgia, D. M. Manning, G. S. Dedrick, P. S. Sizer, J. M. Brismée

Physical Therapy

No abstract provided.

Chronic Female Pelvic Pain; Part Ii: Differential Diagnosis And Management, P. Nelson, G. Apte, R. Justiz, J. M. Brismée, G. S. Dedrick, P. S. Sizer

Physical Therapy

No abstract provided.

Chronic Female Pelvic Pain; Part I: Clinical Pathoanatomy And Examination Of The Pelvic Region, G. Apte, P. Nelson, J. M. Brismée, G. S. Dedrick, R. Justiz, P. S. Sizer Jr.

Physical Therapy

No abstract provided.

The Effect Of Isometric Shoulder Internal And External Rotation On The Acromiohumeral Distance, C. White, G. S. Dedrick, P. S. Sizer, G. G. Apte, J. M. Brismée

Physical Therapy

No abstract provided.

Chronic Lower Back Pain: A Maladaptive Perceptions Model, Benedict M. Wand

Physiotherapy Conference Papers

High quality evidence suggests that current approaches to the management of CLBP show only limited effectiveness; one explanation of this finding is that current models of management are misdirected or incomplete. This talk proposes a model of CLBP underpinned by data on the psychological contributors to the LBP experience and recent evidence of neuroplastic changes in the brains of people with CLBP (see below). The model suggests that maladaptive cognitive perception about the nature of the back problem and future consequences drive behaviours that might bring about maladaptive neuroplastic changes. These central nervous system changes may enhance sensitivity, influence normal …

Moving In An Environment Of Induced Sensory-Motor Incongruence Does Not Influence Pain Sensitivity In Healthy Volunteers: A Randomised Within-Subject Cross-Over Experiment, Benedict M. Wand, Lareina Szpak, Pamela George, Max Bulsara, Neil E. O'Connell, G Lorimer Moseley

Physiotherapy Conference Papers

A mismatch between the brain's motor control and sensory systems has been suggested as one mechanism whereby maladaptive neuroplastic changes contribute to the experience of chronic pain. Several studies have investigated this hypothesis by artificially inducing a state of sensory-motor incongruence using mirrors. The data to date appear to suggest that creating an environment of sensori-motor incongruence induces various sensory changes and feeling of peculiarity, however the effect on pain is less clear. The aim of this study was to test the hypothesis that healthy participants would demonstrate reduced pain thresholds and report greater intensity of pain in a condition …

Treatment-Based Classification Of Low Back Pain – Who Are The Unclear Classifications?, T R. Stanton, J M. Fritz, A T. Apeldoorn, Benedict M. Wand, M J. Hancock

Physiotherapy Conference Papers

A recent focus in low back pain research has been to identify patient subgroups that respond best to certain treatments. To integrate these subgroup findings into a useable form, a treatment-based classification algorithm for LBP was created.^1,2 To allow the algorithm to be comprehensive – eg, provide a classification for all patients – additional criteria are provided to assist therapists’ decisions for patients who do not clearly meet a treatment subgroup (unclear classifications).

Recent research found that approximately 34% of patients will receive unclear classifications using the algorithm.³ It has also been shown that the reliability of the …

Functional Changes In The Primary Somatosensory Cortex In Complex Regional Pain Syndrome (Crps): A Systematic Review, Flavia Di Pietro, Tasha R. Stanton, Luke Parkitny, James H. Mccauley, Martin Lotze, Benedict M. Wand, G Lorimer Moseley

Physiotherapy Conference Papers

The brain plays a key role in CRPS. A widely-studied brain region in pain research is the primary somatosensory cortex (S1), a somatotopic map of our body’s surface which functionally reorganises in pain [1]. Changes in the S1 representation of the CRPS-affected body part have contributed to new CRPS treatments, e.g. graded motor imagery. This systematic review and meta-analysis aimed to determine whether CRPS is associated with: a) a change in the size of the S1 representation of the affected body part; b) altered S1 activity, in terms of activation levels and latency of responses.

Discovering Which Experiences Physiotherapy Students Identify As Learning Facilitators In Practical Laboratories: An Action Research Project, J Francis-Coad, A Hill

Physiotherapy Conference Papers

Purpose: Students enrolled in courses that focus on patient contact participate in practical laboratories to learn clinical skills but this can be challenging in a pre-clinical environment. A simulated case based format using role play in small groups is commonly undertaken. Students may find it difficult to actively engage in learning and effective role playing without prior clinical experience. The aim of this study was to discover what type of experiences facilitated student learning in practical laboratory sessions.

Method: Design: Action research study.

Participants: Thirty two undergraduate second year physiotherapy students who were engaging in practical laboratories.

Data …

Turf, Team, And Town: A Geriatric Interprofessional Education Program, Nancy Macrae

Occupational Therapy Faculty Publications

Describes the Interprofessional Geriatric Education Program (IGEP) at the University of New England (U.S.). This course involves collaboration among health care students and faculty, including dental, occupational therapy, physician assistant, and physical therapy programs, and is focused on treatment for and feedback from elderly patients, who serve as “teachers” for students in the program.