Scholars@Duke
Jody Ann Feld

Jody Ann Feld

Assistant Professor in Orthopaedic Surgery
Orthopaedic Surgery, Physical Therapy
jody.feld@duke.edu
311 Trent Drive, Durham, NC 27710
311 Trent Drive, 5th Floor, Durham, NC 27710

Selected Publications

A Methodological Protocol and Considerations for Transcranial Ultrasonic Stimulation in Exploratory Clinical Human Studies.

Journal Article J Vis Exp · December 12, 2025 Transcranial ultrasonic stimulation (TUS) is emerging as a non-invasive neuromodulatory technique capable of delivering millimeter-precision stimulation at whole-brain depths. Research efforts have increasingly focused on its translational potential. Promi ... Full text Link to item Cite

Predictive validity of obstacle-crossing test variations in identifying fallers after inpatient rehabilitation for stroke.

Journal Article Top Stroke Rehabil · September 2025 BACKGROUND: The ability to step over an obstacle is often evaluated as part of fall-risk and balance assessments. Although different obstacle-crossing tests exist, their comparative predictive validity in stroke is unknown. OBJECTIVES: To examine the predi ... Full text Link to item Cite

Safety and efficacy of transcranial direct current stimulation in addition to constraint-induced movement therapy for post-stroke motor recovery (TRANSPORT2): a phase 2, multicentre, randomised, sham-controlled triple-blind trial.

Journal Article Lancet Neurol · May 2025 BACKGROUND: Motor impairments contribute substantially to long-term disability following stroke. Studies of transcranial direct current stimulation (tDCS), combined with various rehabilitation therapies, have shown promising results in reducing motor impai ... Full text Link to item Cite

Low intensity focused ultrasound stimulation in stroke: A phase I safety & feasibility trial.

Journal Article Brain Stimul · 2025 OBJECTIVE: We aimed to determine the maximum safe spatial-peak pulse-average intensity (ISPPA) of low-intensity focused ultrasound stimulation (LIFUS) in stroke patients and explore its effect on motor learning and corticospinal excitability. METHODS: We a ... Full text Link to item Cite

Cognitive-motor dual-task interference in adults with sickle cell disease.

Journal Article Gait Posture · May 2023 BACKGROUND: Sickle cell disease (SCD) is a genetic disorder that causes physical and cognitive impairment due to hemolysis, painful vaso-occlusion episodes, joint avascular necrosis, and strokes. As individuals with SCD age and develop conditions impacting ... Full text Link to item Cite

Cognitive-motor dual-task gait training within 3 years after stroke: A randomized controlled trial.

Journal Article Physiother Theory Pract · October 2022 BACKGROUND: Dual-task gait training may improve dual-task gait speed after stroke, but the effects on the relative amount of dual-task interference are unclear. OBJECTIVE: To compare the efficacy of dual-task gait training (DTGT) and single-task gait train ... Full text Link to item Cite

Utility of an obstacle-crossing test to classify future fallers and non-fallers at hospital discharge after stroke: A pilot study.

Journal Article Gait Posture · July 2022 BACKGROUND: Existing clinical assessments of balance and functional mobility have poor predictive accuracy for prospectively identifying post-stroke fallers, which may be due to a lack of ecological complexity that is typical of community-based fall incide ... Full text Open Access Link to item Cite

Participant Outcomes of a Student-Run, Intensive, Short-Term, Task-Specific Rehabilitation Program for Individuals Post-Stroke.

Journal Article J Allied Health · 2022 Stroke survivors continue to face chronic disability and limited access to early, continuous, and long-term rehabilitation. This pilot study examined the impact of a 6-day, intensive, short-term, task-specific rehabilitation program (ISTRP) on outcomes pos ... Link to item Cite

Brief composite mobility index predicts post-stroke fallers after hospital discharge

Journal Article Frontiers in Rehabilitation Sciences · January 1, 2022 Introduction: Community-dwelling, ambulatory stroke survivors fall at very high rates in the first 3–6 months. Current inpatient clinical assessments for fall risk have inadequate predictive accuracy. We found that a pre-discharge obstacle-crossing test ha ... Full text Cite

A template for physical resilience research in older adults: Methods of the PRIME-KNEE study.

Journal Article J Am Geriatr Soc · November 2021 BACKGROUND: Older adults with similar health conditions often experience widely divergent outcomes following health stressors. Variable recovery after a health stressor may be due in part to differences in biological mechanisms at the molecular, cellular, ... Full text Link to item Cite

Patterns of cognitive-motor dual-task interference post stroke: an observational inpatient study at hospital discharge.

Journal Article Eur J Phys Rehabil Med · June 2021 BACKGROUND: Many ambulatory stroke survivors are discharged to community settings where they will confront highly attention-demanding mobility situations. Very little is known about cognitive-motor interference during walking in acutely rehabilitating stro ... Full text Link to item Cite

Effect of Low Intensity Transcranial Ultrasound Stimulation on Neuromodulation in Animals and Humans: An Updated Systematic Review.

Journal Article Front Neurosci · 2021 Background: Although low-intensity transcranial ultrasound stimulation (LI-TUS) has received more recognition for its neuromodulation potential, there remains a crucial knowledge gap regarding the neuromodulatory effects of LI-TUS and its potential for tra ... Full text Link to item Cite

Doctor of Physical Therapy Student Perceptions of Domestic Versus International Service-Learning Experiences: A Mixed-Methods Approach.

Journal Article J Allied Health · 2021 PURPOSE: The purpose of this study was to compare Doctor of Physical Therapy (DPT) students' perceptions of service-learning between domestic and international service-learning experiences (SLEs). METHODS: DPT students participated in semi-structured inter ... Link to item Cite

Examining Sex Differences in Visual Reliance During Postural Control in Intercollegiate Athletes.

Journal Article Int J Sports Phys Ther · 2021 BACKGROUND: Risk factors for different sports injuries vary between sexes. Deficits in postural stability have been associated with several lower extremity injuries. The purpose of this study was to examine the differences in static postural stability betw ... Full text Link to item Cite

Attentional prioritization in dual-task walking: Effects of stroke, environment, and instructed focus.

Journal Article Gait Posture · June 2020 BACKGROUND: The impact of high distraction, real-world environments on dual-task interference and flexibility of attentional prioritization during dual-task walking in people with stroke is unknown. RESEARCH QUESTION: How does a real-world environment affe ... Full text Link to item Cite

USE OF ATTENTION DEMANDING TASKS TO ESTIMATE FALL RISK AND DAILY WALKING ACTIVITY IN SUBACUTE STROKE

Thesis Dissertation · August 7, 2019 Introduction: Community-dwelling stroke survivors are extremely inactive, leading to a possible cascade of secondary health problems such as obesity and depression and risk for second stroke and mortality. Falls are also a common and serious adverse event, ... Link to item Cite

Relationships between gait variability and ambulatory activity post stroke.

Journal Article Top Stroke Rehabil · May 2019 BACKGROUND: Fall risk and balance confidence are related to gait variability and ambulatory activity post stroke, yet whether a relationship exists between gait variability and ambulatory activity is unknown. Knowing if gait variability measured under natu ... Full text Link to item Cite

Visual scanning behavior during distracted walking in healthy young adults.

Journal Article Gait Posture · January 2019 BACKGROUND: An epidemic of pedestrian accidents when walking while texting suggests that people are less aware of their surroundings during distracted walking, and highlights the importance of visual scanning for pedestrian safety. Quantitative examination ... Full text Link to item Cite

Effects of Non-Invasive Brain Stimulation on Clinical Pain Intensity and Experimental Pain Sensitivity Among Individuals with Central Post-Stroke Pain: A Systematic Review.

Journal Article J Pain Res · 2019 PURPOSE: Central post-stroke pain (CPSP) is a neuropathic disorder resulting in pain and disability. An emerging treatment for CPSP is non-invasive brain stimulation including direct current stimulation [tDCS] and repetitive transcranial magnetic stimulati ... Full text Link to item Cite

Relationship Between Dual-Task Gait Speed and Walking Activity Poststroke.

Journal Article Stroke · May 2018 BACKGROUND AND PURPOSE: Gait speed does not adequately predict whether stroke survivors will be active in the community. This may be because traditional single-task gait speed does not sufficiently reproduce the demands of walking in the real world. This s ... Full text Link to item Cite

Aging effects on leg joint variability during walking with balance perturbations.

Journal Article Gait Posture · May 2018 BACKGROUND: Older adults are more susceptible to balance perturbations during walking than young adults. However, we lack an individual joint-level understanding of how aging affects the neuromechanical strategies used to accommodate balance perturbations. ... Full text Link to item Cite

Dual-Task Gait and Alzheimer's Disease Genetic Risk in Cognitively Normal Adults: A Pilot Study.

Journal Article J Alzheimers Dis · 2018 BACKGROUND: Dual-task paradigms, in which an individual performs tasks separately and then concurrently, often demonstrate that people with neurodegenerative disorders experience more dual-task interference, defined as worse performance in the dual-task co ... Full text Link to item Cite

Response and prediction of improvement in gait speed from functional electrical stimulation in persons with poststroke drop foot.

Journal Article PM R · July 2014 OBJECTIVE: To describe changes in and predictors of comfortable gait speed (GS-C) after using a foot-drop stimulator (FDS; Bioness L300; Bioness Inc, Valencia, CA) for 42 weeks in persons who had sustained a stroke. DESIGN: Secondary analysis of prospectiv ... Full text Link to item Cite

Foot drop stimulation versus ankle foot orthosis after stroke: 30-week outcomes.

Journal Article Stroke · June 2013 BACKGROUND AND PURPOSE: Drop foot after stroke may be addressed using an ankle foot orthosis (AFO) or a foot drop stimulator (FDS). The Functional Ambulation: Standard Treatment versus Electric Stimulation Therapy (FASTEST) trial was a multicenter, randomi ... Full text Link to item Cite

The functional ambulation: Standard treatment versus electrical stimulation therapy (FASTEST) trial for stroke: Study design and protocol

Journal Article Reports in Medical Imaging · 2012 Background: Surface electrical stimulation for foot drop (foot drop stimulation [FDS]) technology has greatly improved over the last decade, leading to increased use in the clinic environment and the community. Despite numerous studies suggesting the benef ... Full text Cite

Berg Balance Scale and Risk for Falls in an Acute Rehabilitation Setting

Conference Neurorehabilitation and Neural Repair · 2005 Cite

Berg balance scale and outcome measures in acquired brain injury.

Journal Article Neurorehabil Neural Repair · 2001 Featured Publication OBJECTIVE: To examine the relationship of the Berg Balance Scale (BBS) to outcome after acquired brain injury. METHODS: Forty consecutive patients with acquired brain injury were admitted for multidisciplinary rehabilitation. Patients were assessed with th ... Full text Link to item Cite

Berg Balance Scale and Prediction of Outcome in Acquired Brain Injury

Conference Neurorehabilitation and Neural Repair · 2000 Cite

Can individuals with stroke flexibly prioritize attention during dual-task walking?

Conference Platform Presentation - Neurology Section ... Cite