- Diabetic Foot Ulcer Assessment and Management
- Lower Extremity Biomechanics and Pathologies
- Wound Healing and Treatments
- Spaceflight effects on biology
- Pressure Ulcer Prevention and Management
- Space Exploration and Technology
- Muscle activation and electromyography studies
- Foot and Ankle Surgery
- Prosthetics and Rehabilitation Robotics
- Total Knee Arthroplasty Outcomes
- Balance, Gait, and Falls Prevention
- Tendon Structure and Treatment
- Knee injuries and reconstruction techniques
- Sports Performance and Training
- Cerebral Palsy and Movement Disorders
- Bone fractures and treatments
- Non-Invasive Vital Sign Monitoring
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Shoulder Injury and Treatment
- Sports injuries and prevention
- Infrared Thermography in Medicine
- Skin Diseases and Diabetes
- Optical Imaging and Spectroscopy Techniques
- Orthopaedic implants and arthroplasty
- Reconstructive Surgery and Microvascular Techniques
Cleveland State University
2020-2024
Pennsylvania State University
1992-2024
Baylor College of Medicine
2022
Brigham Young University
2018-2020
University of California Davis Medical Center
2020
University of Akron
2014-2019
Society for Imaging Science and Technology
2015
International Society for Optics and Photonics
2015
Austen BioInnovation Institute in Akron
2011-2012
Cleveland Clinic
2000-2010
OBJECTIVE Foot ulceration remains a major health problem for diabetic patients and has impact on the cost of diabetes treatment. We tested hyperspectral imaging technology that quantifies cutaneous tissue hemoglobin oxygenation generated anatomically relevant maps to assess healing potential foot ulcers (DFUs). RESEARCH DESIGN AND METHODS A prospective single-arm blinded study was completed in which 66 with type 1 2 were enrolled followed over 24-week period. Clinical, medical, histories...
The purpose of this research was to evaluate a newly developed system for assessing and providing feedback gait symmetry information in real time subjects walking on motorised treadmill (the CCF Treadmill). advantages the are that it allows rapid collection comparison temporal kinetic parameters multiple successive strides, at constant known speed, without forcing target their footsteps. Gait asymmetries six normal (mean age 42.7 years) unilateral transtibial amputee 41.7, average 6.0 years...
The respiratory inductive plethysmograph, a monitor of ventilation that does not require connection from the airway, was validated against spirometry during moderate exercise using bicycle ergometer and treadmill. One hundred seventy-three 200 breaths 6 young adults 211 242 treadmill walking were within +/- 20% tidal volumes measured by simultaneous spirometry. plethysmograph appears to be useful non-invasive exercise.
Diabetic foot ulcers burden the U.S. health care system with an annual cost of approximately $6 billion (1). Based on mechanical etiology diabetic lesions, investigators tried to establish a relationship between ulcer occurrence and plantar pressures. Mostly, peak pressure has been chosen as predictor. However, previous studies have yielded only moderate correlations lesions (2–4). Surprisingly, in one study that examined whether locations matched sites (4), 38% developed under area....
Context Surgical management for severe obstructive sleep apnea has been tracheostomy, which significant morbidity. Objective To determine the efficacy of internal mandibular distraction in treating infants and neonates. Design Retrospective review medical records 29 patients who underwent secondary to micrognathia. Setting Nonprofit, academic, pediatric center. Patients A total with were studied. Nine included respiratory failure group requiring intubation prior surgery. The other 20...
Orthopaedic research on in vitro forces applied to bones, tendons, and ligaments during joint loading has been difficult perform because of limitations with existing robotic simulators applying full-physiological the under investigation real time. The objectives current work are as follows: (1) describe design a musculoskeletal simulator developed support testing cadaveric systems, (2) provide component system-level validation results, (3) demonstrate simulator’s usefulness for specific...
We used a new non-invasive monitor of ventilation, the respiratory inductive plethysmograph, to determine effects breathing through mouthpiece (with nose clip) and external dead spaces on ventilation at rest during exercise. Six normal young subjects were studied 5-min sequential periods rest, submaximal exercise bicycle work load 800 kgm/min, recovery. Not surprisingly, imposition system with 150, 250, 350 ml produced progressively greater than natural However, when actual tidal volumes...
Exposure of a knee endoprosthesis represents limb-threatening condition, requiring long-term antibiosis, irrigation, and serial debridement to avoid arthrodesis or amputation. Although traditional orthopedic surgical doctrine mandates removal exposed hardware under dehisced wound, salvage prostheses using local muscle flap coverage has been reported. However, the complex three-dimensional geometry soft tissue surrounding as well requirement for sustained levels antibiotics re-sterilize...
A device has been designed to simultaneously measure the vertical pressure and anterior-posterior medial-lateral distributed shearing forces under plantar surface of foot. The uses strain gauge technology consists 16 individual transducers (each with a area measuring 2.5 × cm) arranged in 4 array. sampling frequency is 37 Hz data may be collected for 2 s. was calibrated both static dynamic conditions revealed excellent linearity (±5%), minimal hysteresis (±7.5%), very good agreement between...
Advanced prosthetic knees for transfemoral amputees are currently based on controlled damper mechanisms. Such devices require little energy to operate, but can only produce negative or zero joint power, while normal knee function requires alternative phases of positive and work. The inability generate work may limit the user’s functional capabilities, cause undesirable adaptive behavior, contribute excessive metabolic cost locomotion. In order overcome these problems, we present a novel...