Publications by authors named "Ryan T Pohlig"

A high proportion of individuals with Achilles tendinopathy continue to demonstrate long-term symptoms and functional impairments after exercise treatment. Thus, there is a need to delineate patient presentations that may require alternative treatment. The objective of this study was to evaluate if the presence of metabolic risk factors relates to tendon symptoms, psychological factors, triceps surae structure, and lower limb function in individuals with Achilles tendinopathy.

View Article and Find Full Text PDF

The dynamic motor control index is an emerging biomarker of age-related neuromuscular impairment. To date, it has been computed by quantifying the co-activity of eleven lower limb muscles. Because clinics that routinely employ electromyography typically collect from fewer muscles, a reduced muscle sensor set may improve the clinical usability of this metric of motor control.

View Article and Find Full Text PDF

Background: Individualizing interventions is imperative to optimize physical activity in people with chronic stroke. This secondary analysis grouped individuals with chronic stroke into clinical profiles based on baseline characteristics and examined if these clinical profiles preferentially benefitted from a specific rehabilitation intervention to improve daily step-activity.

Methods: Participants had non-cerebellar strokes ≥6 months prior to enrollment, were 21-85 years old, had walking speeds of 0.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate short-term recovery in individuals with Achilles tendinopathy using the Silbernagel protocol, focusing on the impact of varying levels of kinesiophobia.
  • A total of 116 participants were categorized based on their Tampa Scale of Kinesiophobia (TSK) scores, and their symptoms and tendon function were assessed before and after an 8-week treatment period.
  • Results showed no differences in recovery across groups based on symptoms or tendon function, but those with moderate and high kinesiophobia experienced a significant reduction in their TSK scores after treatment.
View Article and Find Full Text PDF

Vascular dysfunction, marked by lower endothelial function and increased aortic stiffness, is a nontraditional risk factor that precedes the development of cardiovascular disease (CVD). However, the age at which these changes in vascular function occur in women and the degree to which reproductive hormones mediate these changes has not been characterized. Women free from major disease were enrolled across the adult life span (aged 18-70 yr, = 140).

View Article and Find Full Text PDF

Background: The purpose was to explore quadriceps electromechanical function (quadriceps latency) during gait after anterior cruciate ligament injury as a predictor for radiographic knee osteoarthritis 6-years after anterior cruciate ligament reconstruction. Change in latency after preoperative physical therapy was also examined.

Methods: Quadriceps latency (time between peak knee moment and quadriceps electromyography) was calculated before preoperative physical therapy (2.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to explore the links between Achilles tendon pain, loading symmetry, and running frequency in runners recovering from Achilles tendinopathy over two weeks.
  • It utilized a prospective observational design with 17 participants, collecting data on symptom severity using the VISA-A questionnaire, daily running logs, and wearable sensor measurements during runs.
  • Findings indicated that increased ground contact time on the non-injured leg correlated with more pain in the injured tendon during consecutive running days, while the frequency of running bouts did not significantly affect symptom severity over the two-week period.
View Article and Find Full Text PDF

Objective: The aim of this study was to evaluate the prevalence of, and explore factors related to, prescription of potentially inappropriate medications (PIMs) among older adults with lower-limb loss (LLL).

Methods: This was a secondary analysis of a cross-sectional dataset collected through an interdisciplinary limb loss clinic between September 2013 and November 2022. Self-report medication lists were reviewed during in-clinic face-to-face interviews and compared to the American Geriatrics Society Beers Criteria corresponding to the patient's evaluation year.

View Article and Find Full Text PDF

Background: Physical therapists frequently employ heel lifts as an intervention to reduce Achilles tendon pain and restore function.

Purpose: To determine the short-term effect of heel lifts on clinical and gait outcomes in participants with insertional Achilles tendinopathy (IAT).

Study Design: Case series; Level of evidence, 4.

View Article and Find Full Text PDF

Walking slowly after stroke reduces health and quality of life. This multi-site, prospective, interventional, 2-arm randomized controlled trial (NCT04121754) evaluated the safety and efficacy of an autonomous neurorehabilitation system (InTandem) designed to use auditory-motor entrainment to improve post-stroke walking. 87 individuals were randomized to 5-week walking interventions with InTandem or Active Control (i.

View Article and Find Full Text PDF

Objective: The study evaluated whether pain intensity and extent, balance-confidence, functional mobility, and balance (eg, functional reach) are potential risk factors for recurrent falls among adults with a lower-limb amputation.

Design: Cross-sectional study.

Setting: Research laboratory.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined the impact of three different interventions (high-intensity walking, step monitoring, and a combination of both) on increasing daily physical activity (steps/day) in individuals who had a chronic stroke.
  • The trial involved 250 participants aged 21 to 85, who were randomly assigned to one of the three groups for 12 weeks, aiming to see which method would effectively boost walking activity.
  • Results showed that both the step monitoring intervention and the combined intervention significantly increased steps per day, while the high-intensity walking alone did not show a significant increase, with no serious adverse events reported.
View Article and Find Full Text PDF

In younger populations, risk factors from psychologically-focused theoretical models have become accepted as primary drivers behind the persistence of low back pain (LBP), but these risk factors have not been thoroughly assessed in older adult populations (60-85 years). To address this knowledge gap, we sought to examine longitudinal associations between both general and pain-related psychological risk factors and future pain intensity, LBP-related disability, and physical function (gait speed) outcomes in older adults with chronic LBP (n = 250). Questionnaires for general (ie, depressive symptoms) and pain-related psychological risk factors (ie, fear-avoidance beliefs, pain catastrophizing, and kinesiophobia) were collected at baseline.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how body size affects different expressions of stability margins in walking, specifically looking at impulses and changes in velocity related to center of mass.
  • The results showed strong correlations between impulse-based stability margins and body size, with significant differences between groups, while other expressions had weak correlations and differences.
  • The researchers recommend using impulse expressions for stability margins and suggest a scaled, unitless impulse when scaling is necessary.
View Article and Find Full Text PDF

Peripheral neuropathy (PN) and peripheral arterial disease (PAD) are life-limiting comorbidities among adults with lower-limb loss that may not be adequately addressed in current care models. The objective of this study was to evaluate underreporting of PN and PAD among adults with lower-limb loss. We conducted a secondary analysis of a cross-sectional dataset of community-dwelling adults with unilateral lower-limb loss seen in an outpatient Limb Loss Clinic (n = 196; mean age = 56.

View Article and Find Full Text PDF

Background: Exercise priming, pairing high intensity exercise with a motor learning task, improves retention of upper extremity tasks in individuals after stroke, but has shown no benefit to locomotor learning. This difference may relate to the type of learning studied. Upper extremity studies used explicit, strategic tasks; locomotor studies used implicit sensorimotor adaptation (split-belt treadmill).

View Article and Find Full Text PDF
Article Synopsis
  • The study examines how dietary sodium and potassium levels impact blood pressure (BP) and blood pressure variability (BPV) in healthy, non-obese adults, with a focus on potential differences between men and women.
  • The researchers found that women had lower BP overall but experienced a reduction in systolic BP when consuming a high potassium/high sodium diet compared to a moderate potassium/high sodium diet.
  • Although diet did not significantly affect BPV, men showed higher BPV than women regardless of the diet, suggesting sex differences in blood pressure responses to sodium and potassium intake.
View Article and Find Full Text PDF

Background: Physical inactivity in people with chronic stroke profoundly affects daily function and increases recurrent stroke risk and mortality, making physical activity improvements an important target of intervention. We compared the effects of a highintensity walking intervention (FAST), a step activity monitoring behavioral intervention (SAM), or a combined intervention (FAST+SAM) on physical activity (i.e.

View Article and Find Full Text PDF

Arterial stiffness and cerebrovascular pulsatility are non-traditional risk factors of Alzheimer's disease. However, there is a gap in understanding the earliest mechanisms that link these vascular determinants to brain aging. Changes to mechanical tissue properties of the hippocampus (HC), a brain structure essential for memory encoding, may reflect the impact of vascular dysfunction on brain aging.

View Article and Find Full Text PDF

Trunk muscles may be an overlooked region of deficits following lower-limb amputation (LLA). This study sought to determine the extent that trunk muscle deficits are associated with physical function following amputation. Sedentary adults with a unilateral transtibial- (n = 25) or transfemoral-level (n = 14) amputation were recruited for this cross-sectional research study.

View Article and Find Full Text PDF

Objective: Movement-evoked pain (MeP) may predispose the geriatric chronic low back pain (LBP) population to health decline. As there are differing operational definitions for MeP, the question remains as to whether these different definitions have similar associations with health outcomes in older adults with chronic LBP.

Design: Cross-sectional analysis of an observational study.

View Article and Find Full Text PDF

Background And Purpose: Older adults with low back pain (LBP) are at risk for falling, but condition-specific mechanisms are unknown. Trunk neuromuscular function is critical for maintaining balance during mobility tasks and is often impaired in older adults with LBP. The purpose of this study was to assess whether aberrant lumbopelvic movements (or aberrant movements), a clinical index of trunk neuromuscular function, were associated with increased fall risk among older adults with chronic LBP over a 12-month follow-up period.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aims to find out what factors predict community participation in adults who have undergone lower limb amputation, analyzing data from 126 individuals living independently.
  • - Factors assessed include demographics, prosthesis use, balance confidence, mobility, and physical activity, with correlations found that influence community engagement significantly.
  • - Key findings suggest that lack of peripheral neuropathy, higher physical activity, balance confidence, and effective prosthesis use are crucial in enhancing community participation for these individuals.
View Article and Find Full Text PDF

It is currently unknown which pain-related factors contribute to long-term disability and poorer perceived health among older adults with chronic low back pain (LBP). This investigation sought to examine the unique influence of movement-evoked pain (MeP) and widespread pain (WP) on longitudinal health outcomes (ie, gait speed, perceived disability, and self-efficacy) in 250 older adults with chronic LBP. MeP was elicited with 3 standardized functional tests, while presence of WP was derived from the McGill Pain Map.

View Article and Find Full Text PDF

To (1) evaluate whether the defining characteristics of previously reported Achilles tendinopathy subgroups were reproducible in a cohort with midportion Achilles tendinopathy and (2) compare recovery trajectories and outcomes. Prospective single cohort study. Participants (n = 114; 57 women; age [mean ± standard deviation]: 47 ± 12 years) received the Silbernagel protocol and were evaluated at baseline, and at 8, 16, and 24 weeks.

View Article and Find Full Text PDF