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Background: Exercise has failed to reduce falls in those with chronic stroke. A limitation of traditional exercise is that the motor responses needed to prevent a fall are not elicited (i.e. they lack processing specificity). Balance reactions often require compensatory steps. Therefore, interventions that target such steps have the potential to reduce falls. Computerized treadmills can deliver precise, repeatable, and challenging perturbations as part of a training protocol. The objective of this study was to develop and determine the feasibility of such training applied to those with chronic stroke. We developed the training to address specificity, appropriate duration and repetition, and progressive overloading and individualization. We hypothesized that our intervention would be acceptable, practical, safe, and demonstrate initial signs of efficacy.
Methods: In this single-arm study, thirteen individuals with chronic stroke (29-77 years old, 2-15 years post stroke) performed up to six training sessions using a computer-controlled treadmill. Each session had separate progressions focused on initial steps with the non-paretic or paretic limbs in response to anterior or posterior falls. Perturbation magnitudes were altered based on performance and tolerance. Acceptability was determined by adherence, or the number of sessions completed. Practicality was documented by the equipment, space, time, and personnel. Adverse events were documented to reflect safety. In order to determine the potential-efficacy of this training, we compared the proportion of successful recoveries and the highest perturbation magnitude achieved on the first and last sessions.
Results: The training was acceptable, as evident by 12/13 participants completing all 6 sessions. The protocol was practical, requiring one administrator, the treadmill, and a harness. The protocol was safe, as evident by no serious or unanticipated adverse events. The protocol demonstrated promising signs of efficacy. From the first to last sessions, participants had a higher proportion of successful recoveries and progressed to larger disturbances.
Conclusions: Using a computerized treadmill, we developed an approach to fall-recovery training in individuals with chronic stroke that was specific, considered duration and repetition, and incorporated progressive overloading and individualization. We demonstrated that this training was acceptable, practical, safe, and potentially beneficial for high-functioning individuals with chronic stroke.
Trial Registration: Retrospectively registered at clinicaltrials.gov ( NCT03638089 ) August 20, 2018.
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http://dx.doi.org/10.1186/s12883-019-1320-8 | DOI Listing |
Pathology
November 2024
Institutionen för kliniska vetenskaper, Lunds Universitet, Klinisk Patologi & Medicinsk Service, Region Skåne, Lund, Sweden.
Optimal blood flow through a patent cerebral circulation is critical for supply of oxygen and nutrients for brain function. The integrity of vascular elements within arterial vessels of any calibre can be compromised by various disease processes. Pathological changes in the walls of veins and the venous system may also alter the dynamics of cerebral perfusion.
View Article and Find Full Text PDFBMC Cardiovasc Disord
December 2024
Department of cardiovascular medicine, Chengdu Seventh People's Hospital, No.1188 Shuangxing Avenue, Chengdu city, 610200, Sichuan Province, China.
Background: Heart failure with preserved ejection fraction (HFpEF) poses a significant clinical challenge, especially in older patients with HT. This study aimed to identify the factors influencing HFpEF occurrence in elderly patients with HT.
Methods: Elderly patients with HT were categorized into two groups: no HFpEF group and HFpEF group based on HFpEF diagnosis.
JAMA Neurol
December 2024
Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Importance: Gestational hypertension, preeclampsia, and eclampsia are established risk factors for stroke and dementia later in life. Whether these pregnancy complications are associated with an increased risk of new-onset neurological disorders within months to years after giving birth is not known.
Objective: To explore whether gestational hypertension, preeclampsia, and eclampsia are associated with new-onset migraine, headache, epilepsy, sleep disorder, or mental fatigue within months to years after giving birth.
G Ital Cardiol (Rome)
January 2025
U.O.C. Cardiologia 1, Dipartimento Cardiovascolare, ASST Papa Giovanni XXIII, Bergamo.
Mineralocorticoid receptor antagonists (MRAs) represent one of the cornerstones of treatment for heart failure with reduced ejection fraction. Post-hoc data from the TOPCAT trial, conducted in patients with heart failure mildly reduced or preserved ejection fraction (HFmrEF/HFpEF), suggest the possible clinical benefit of MRAs, particularly for slightly reduced ejection fraction values. The advent of non-steroidal MRAs, including finerenone, seems to represent a turning point in the treatment for HFmrEF/HFpEF.
View Article and Find Full Text PDFBrain Commun
December 2024
Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA.
Syntactic processing and verbal working memory are both essential components to sentence comprehension. Nonetheless, the separability of these systems in the brain remains unclear. To address this issue, we performed causal-inference analyses based on lesion and connectome network mapping using MRI and behavioural testing in two groups of individuals with chronic post-stroke aphasia.
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