Thurmon E. Lockhart
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Assessing fall risk in osteoporosis patients: a comparative study of age-matched fallers and nonfallers Open
This study aimed to investigate sway parameters and physical activity level of the age/gender-matched older adults with osteoporosis faller and nonfaller patients. By examining these factors, our objective was to understand how these falle…
Effects of protective step training on proactive and reactive motor adaptations in Parkinson’s disease patients Open
The aim of this study was to investigate to what extent PD affects the ability to walk, respond to balance perturbations in a single training session, and produce acute short-term effects to improve compensatory reactions and control of un…
IEEE Access Special Section Editorial: Behavioral Biometrics for Ehealth and Well-Being Open
This Special Section in IEEE ACCESS aimed to arise the interest of the scientific community and to attract original research to advance the state of the art in behavioral biometrics for e-health and well-being. It is an opportunity to gain…
Comparison of Physical Activity Level From Osteoporosis, Parkinson and Healthy Subjects Open
Lifestyle at the habitation immensely affects the progression of various illnesses, such as Osteoporosis and Parkinson’s disease (PD). These disorders lead patients to a sedentary lifestyle and result in significantly less movement compare…
View article: Effects of ECG Data Length on Heart Rate Variability among Young Healthy Adults
Effects of ECG Data Length on Heart Rate Variability among Young Healthy Adults Open
The relationship between the robustness of HRV derived by linear and nonlinear methods to the required minimum data lengths has yet to be well understood. The normal electrocardiography (ECG) data of 14 healthy volunteers were applied to 3…
Predicting Fall Risk Through Automatic Wearable Monitoring Open
Falls represent a major burden on elderly individuals and society as a whole. Technologies that are able to detect individuals at risk of fall before occurrence could help reduce this burden by targeting those individuals for rehabilitatio…
Special Issue on PHM for Human Health and Performance II Open
This special issue was conceived during the 11th Annual Conference of Prognostic and Health Management Society’s Panel session on the September 25th at Scottsdale, AZ, USA. We would like to thank the panel members and their colleagues in t…
Effects of Rucksack Military Accessory on Gait Dynamic Stability Open
Various factors are responsible for injuries that occur in the U.S. Army soldiers. In particular, rucksack load carriage equipment influences the stability of the lower extremities and possibly affects gait balance. The objective of this i…
Length of Time-Series Gait Data on Lyapunov Exponent for Fall Risk Detection Open
Falls are the leading cause of disability in older adults with a third of adults over the age of 65 falling every year. Quantitative fall risk assessments using inertial measurement units and local dynamics stability (LDS) have shown that …
View article: Integrated Sensing Systems for Monitoring Interrelated Physiological Parameters in Young and Aged Adults
Integrated Sensing Systems for Monitoring Interrelated Physiological Parameters in Young and Aged Adults Open
Acute injury to aged individuals represents a significant challenge to the global healthcare community as these injuries are frequently treated in a reactive method due to the infeasibility of frequent visits to the hospital for biometric …
Assessment of Static Steadiness and Dynamic Stability at Various Stages of Healing of a Grade 2 Medial Collateral Ligament Tear: A Case Report Open
Injuries to ligaments of the knee are extremely common among athletes who participate in high-risk sports or any sport that requires frequent cutting motions, jumping, or contact. In order to determine the best way to heal these injuries, …
THREE DAYS MONITORING OF ACTIVITIES OF DAILY LIVING AMONG YOUNG HEALTHY ADULTS AND PARKINSON’S DISEASE PATIENTS Open
Parkinson’s Disease (PD) is a neurodegenerative disorder affecting the substantia nigra, which leads to more than half of PD patients are considered to be at high risk of falling. Recently, Inertial Measurement Unit (IMU) sensors have show…
Smartphone-Based Prediction Model for Postoperative Cardiac Surgery Outcomes Using Preoperative Gait and Posture Measures Open
Gait speed assessment increases the predictive value of mortality and morbidity following older adults’ cardiac surgery. The purpose of this study was to improve clinical assessment and prediction of mortality and morbidity among older pat…
Prediction of Fall Risk Among Community-Dwelling Older Adults Using a Wearable System Open
Falls are among the most common cause of decreased mobility and independence in older adults and rank as one of the most severe public health problems with frequent fatal consequences. In the present study, gait characteristics from 171 co…
Automatic Detection of Dynamic and Static Activities of the Older Adults Using a Wearable Sensor and Support Vector Machines Open
Although Support Vector Machines (SVM) are widely used for classifying human motion patterns, their application in the automatic recognition of dynamic and static activities of daily life in the healthy older adults is limited. Using a bod…
Automatic Detection of Dynamic and Static Activities of the Older Adults Using a Wearable Sensor and Support Vector Machines Open
Although Support Vector Machines (SVM) are widely used for classifying human motion patterns, their application in the automatic recognition of dynamic and static activities of daily life in the healthy older adults is limited. Using a bod…
A Comparison of Denoising Methods in Onset Determination in Medial Gastrocnemius Muscle Activations during Stance Open
One of the most basic pieces of information gained from dynamic electromyography is accurately defining muscle action and phase timing within the gait cycle. The human gait relies on selective timing and the intensity of appropriate muscle…
Automatic Detection of Dynamic and Static Activities of the Older Adults Using a Wearable Sensor and Support Vector Machines Open
Although Support Vector Machines (SVM) are widely used for classifying human motion patterns, their application in the automatic recognition of dynamic and static activities of daily life in the healthy older adults is limited. Using a bod…
Effect of data length on time delay and embedding dimension for calculating the Lyapunov exponent in walking Open
The Lyapunov exponent (LyE) is a trending measure for characterizing gait stability. Previous studies have shown that data length has an effect on the resultant LyE, but the origin of why it changes is unknown. This study investigates if d…
Sensors for Gait, Posture, and Health Monitoring Volume 1 Open
In recent years, many technologies for gait and posture assessments have emerged. Wearable sensors, active and passive in-house monitors, and many combinations thereof all promise to provide accurate measures of physical activity, gait, an…
Sensors for Gait, Posture, and Health Monitoring Volume 2 Open
In recent years, many technologies for gait and posture assessments have emerged. Wearable sensors, active and passive in-house monitors, and many combinations thereof all promise to provide accurate measures of physical activity, gait, an…
Sensors for Gait, Posture, and Health Monitoring Volume 3 Open
In recent years, many technologies for gait and posture assessments have emerged. Wearable sensors, active and passive in-house monitors, and many combinations thereof all promise to provide accurate measures of physical activity, gait, an…
Automatic Detection of Dynamic and Static Activities of the Elderly using a Wearable Sensor and Support Vector Machines Open
Although Support Vector Machines (SVM) are widely used for classifying human motion patterns, their application in the automatic recognition of dynamic and static activities of daily life in the elderly is limited. Using a body mounted wir…
A Comparison of Denoising Methods in Onset Determination in Medial Gastrocnemius Muscle Activations during Stance Open
One of the most basic pieces of information gained from dynamic electromyography is accurately defining muscle action and phase timing within the gait cycle. The human gait relies on selective timing and the intensity of appropriate muscle…
Fall Risk in Older Adults Transitioning between Different Flooring Materials Open
As there is lack of understanding about the effect of transitioning between different flooring materials on the gait of older adults, this study investigated the effect of transitioning between a carpeted floor and a vinyl floor on the gai…
Fall Risk in Older Adults Transitioning between Different Flooring Materials Open
As there is lack of understanding about the effect of transitioning between different flooring materials on the gait of older adults, this study investigated the effect of transitioning between a carpeted floor and a vinyl floor on the gai…