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Articles 1 - 12 of 12
Full-Text Articles in Medicine and Health Sciences
Skin Cell Proliferation Stimulated By Microneedles, Horst Liebl, Luther C. Kloth
Skin Cell Proliferation Stimulated By Microneedles, Horst Liebl, Luther C. Kloth
Physical Therapy Faculty Research and Publications
A classical wound may be defined as a disruption of tissue integrity. Wounds, caused by trauma from accidents or surgery, that close via secondary intention rely on the biological phases of healing, i.e., hemostasis, inflammation, proliferation, and remodeling (HIPR). Depending on the wound type and severity, the inflammation phase begins immediately after injury and may last for an average of 7–14 days. Concurrent with the inflammation phase or slightly delayed, cell proliferation is stimulated followed by the activation of the remodeling (maturation) phase. The latter phase can last as long as 1 year or more, and the final healed state …
Influence Of Knee Flexion Angle And Age On Triceps Surae Muscle Fatigue During Heel Raises, Kim Hébert-Losier, Anthony G. Schneiders, José A. García, S. John Sullivan, Guy G. Simoneau
Influence Of Knee Flexion Angle And Age On Triceps Surae Muscle Fatigue During Heel Raises, Kim Hébert-Losier, Anthony G. Schneiders, José A. García, S. John Sullivan, Guy G. Simoneau
Physical Therapy Faculty Research and Publications
Hébert-Losier, K, Schneiders, AG, García, JA, Sullivan, SJ, and Simoneau, GG. Influence of knee flexion angle and age on triceps surae muscle fatigue during heel raises. J Strength Cond Res 26(11): 3134–3147, 2012—The triceps surae (TS) muscle-tendon unit is 1 of the most commonly injured in elite and recreational athletes, with a high prevalence in middle-aged adults. The performance of maximal numbers of unilateral heel raises is used to assess, train, and rehabilitate TS endurance and conventionally prescribed in 0° knee flexion (KF) for the gastrocnemius and 45° for the soleus (SOL). However, the extent of muscle selectivity conferred through …
Neuromagnetic Activity In The Cerebral Cortex Is Modulated By Locomotor-Like Movements Produced During Pedaling, Sheila M. Schindler-Ivens, Ruth M. Swedler, Brian Schmit, Sylvain Baillet
Neuromagnetic Activity In The Cerebral Cortex Is Modulated By Locomotor-Like Movements Produced During Pedaling, Sheila M. Schindler-Ivens, Ruth M. Swedler, Brian Schmit, Sylvain Baillet
Physical Therapy Faculty Research and Publications
No abstract provided.
Restoring Functional Status: A Long-Term Case Report Of Severe Lung And Ventilatory Muscle Pump Dysfunction Involving Recurrent Bacterial Pneumonias, Dennis Sobush, Linda Jean Laatsch-Lybeck, Randolph J. Lipchik
Restoring Functional Status: A Long-Term Case Report Of Severe Lung And Ventilatory Muscle Pump Dysfunction Involving Recurrent Bacterial Pneumonias, Dennis Sobush, Linda Jean Laatsch-Lybeck, Randolph J. Lipchik
Physical Therapy Faculty Research and Publications
Background and Purpose: Prolonged mechanical ventilation contributes to immobility and deconditioning making efforts to safely discontinue ventilator support desirable. This case report documents how implementing physical therapy treatment interventions, based on the Guide to Physical Therapist Practice, can help to restore a person’s functional status even after multiple years of mechanical ventilation dependency. Case Description: A patient (female; aged 63 years) with severe restrictive and obstructive ventilatory impairment has survived 34 recurrent pneumonias involving 6 bacterial pathogens while being mechanically ventilated at home. A 3-year study was approved and informed consent obtained for a home exercise program of resistive extremity …
E-Stimulation: An Effective Modality To Facilitate Wound Healing, Pamela Scarborough, Luther C. Kloth
E-Stimulation: An Effective Modality To Facilitate Wound Healing, Pamela Scarborough, Luther C. Kloth
Physical Therapy Faculty Research and Publications
No abstract provided.
A Standardized Evidence-Based Model Of Orthopaedic Physical Therapy Practice: A Quest For The Holy Grail?, Guy G. Simoneau
A Standardized Evidence-Based Model Of Orthopaedic Physical Therapy Practice: A Quest For The Holy Grail?, Guy G. Simoneau
Physical Therapy Faculty Research and Publications
The growth of knowledge in orthopaedic physical therapy practice is on an exponential trajectory. This growth is occurring simultaneously for many aspects of evidence-based practice: diagnosis, prognosis, treatment, and harm – with increasingly more sophisticated basic science and mechanistic studies guiding and supporting the clinical research endeavors. Just how close are we to the day when we can clearly establish the accuracy of our diagnoses, regardless of the model used, and then can confidently inform our patients of the most effective treatment approach and the expected outcomes, as well as any potential harm? This knowledge is being created now, and …
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
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
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 Hyngstrom, Marin Manuel, C J. Heckman
Push-Pull Control Of Motor Output, Michael D. Johnson, Allison 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 …
Supraspinal Fatigue Impedes Recovery From A Low-Intensity Sustained Contraction In Old Adults, Tejin Yoon, Bonnie Schlinder-Delap, Manda L. Keller, Sandra K. Hunter
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, …
Pain Relief In Older Adults Following Static Contractions Is Not Task-Dependent, Kathy J. Lemley, Breanna Drewek, Lauren Miller, Sandra K. Hunter, Marie K. Hoeger Bement
Pain Relief In Older Adults Following Static Contractions Is Not Task-Dependent, Kathy J. Lemley, Breanna Drewek, Lauren Miller, Sandra K. Hunter, Marie K. Hoeger Bement
Physical Therapy Faculty Research and Publications
Pain complaints increase with age. Exercise is frequently utilized for pain relief but the optimal exercise prescription to relieve pain is not clear. Following static contractions, young adults experience the greatest pain relief with low intensity, long duration contractions. The pain response to static contractions in older adults however is unknown.
PURPOSE : To compare pain reports in healthy older adults before and after static contractions of varying intensity and duration.
METHODS: Pain perception was assessed in 23 healthy older adults (11 men, 12 women; 72.0 ± 6.3 yrs) using a pressure pain device consisting of a 10 N force …
Stroke-Related Changes In Neuromuscular Fatigue Of The Hip Flexors And Functional Implications, Allison Hyngstrom, Tanya Onushko, Robert Heitz, Anthony Rutkowski, Sandra K. Hunter, Brian D. Schmit
Stroke-Related Changes In Neuromuscular Fatigue Of The Hip Flexors And Functional Implications, Allison Hyngstrom, Tanya Onushko, Robert Heitz, Anthony Rutkowski, Sandra K. Hunter, Brian D. Schmit
Biomedical Engineering Faculty Research and Publications
Objective: The aim of this study was to compare stroke-related changes in hip flexor neuromuscular fatigue of the paretic leg during a sustained isometric submaximal contraction with those of the nonparetic leg and controls and to correlate fatigue with clinical measures of function.
Design: Hip torques were measured during a fatiguing hip flexion contraction at 20% of the hip flexion maximal voluntary contraction in the paretic and nonparetic legs of 13 people with chronic stroke and 10 age-matched controls. In addition, the participants with stroke performed a fatiguing contraction of the paretic leg at the absolute torque equivalent to 20% …