Dataset Information

Recovery of paretic lower extremity loading ability and physical function in the first six months after stroke.

ABSTRACT: To evaluate poststroke recovery of paretic lower extremity loading, walking ability, and self-reported physical function; and to identify subject characteristics associated with recovery.Inception cohort study, with testing at monthly intervals from 1 to 6 months poststroke.Medical center and research laboratory.Volunteer sample of individuals with first-ever, unilateral, noncerebellar stroke (N=33). A total of 78 individuals underwent screening, and 45 were found to be eligible. Of these, 8 declined participation, 2 were excluded because of deteriorating cognitive status, and 2 were lost to follow-up. The remaining 33 individuals enrolled in the study, and 30 (91%) completed the study.Not applicable.Outcomes were loading of the paretic lower extremity when standing up from a chair, self-selected gait speed (GS), and Physical Functioning Index.Data analyses using linear mixed models indicated that subjects improved over time for all outcomes. Baseline Fugl-Meyer (FM) lower extremity motor scale score was a predictor of immediate poststroke performance for paretic lower extremity loading and self-selected GS, and a predictor of recovery rate for paretic lower extremity loading. Factors identified as having significant effects on performance at 6 months poststroke were baseline FM lower extremity motor scale score for paretic lower extremity loading and self-selected GS and baseline star cancellation score (from the Behavioral Inattention Test) for paretic lower extremity loading.Individuals with better baseline paretic lower extremity motor function have better ability to load that extremity during functional activities and faster walking speeds, and these advantages are still present at 6 months poststroke. Individuals with severe visuospatial neglect demonstrate less ability to load the paretic leg during functional activities at 6 months poststroke.

SUBMITTER: Mercer VS

PROVIDER: S-EPMC4112143 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Recovery of paretic lower extremity loading ability and physical function in the first six months after stroke.

Mercer Vicki Stemmons VS Freburger Janet Kues JK Yin Zhaoyu Z Preisser John S JS

Archives of physical medicine and rehabilitation 20140419 8

<h4>Objectives</h4>To evaluate poststroke recovery of paretic lower extremity loading, walking ability, and self-reported physical function; and to identify subject characteristics associated with recovery.<h4>Design</h4>Inception cohort study, with testing at monthly intervals from 1 to 6 months poststroke.<h4>Setting</h4>Medical center and research laboratory.<h4>Participants</h4>Volunteer sample of individuals with first-ever, unilateral, noncerebellar stroke (N=33). A total of 78 individuals ...[more]

PMID: 24755045

Similar Datasets

Project description:Balance recovery after tripping often requires an active adaptation of foot placement. Thus far, few attempts have been made to actively assist forward foot placement for balance recovery employing wearable devices. This study aims to explore the possibilities of active forward foot placement through two paradigms of actuation: assistive moments exerted with the reaction moments either internal or external to the human body, namely 'joint' moments and 'free' moments, respectively. Both paradigms can be applied to manipulate the motion of segments of the body (e.g., the shank or thigh), but joint actuators also exert opposing reaction moments on neighbouring body segments, altering posture and potentially inhibiting tripping recovery. We therefore hypothesised that a free moment paradigm is more effective in assisting balance recovery following tripping. The simulation software SCONE was used to simulate gait and tripping over various ground-fixed obstacles during the early swing phase. To aid forward foot placement, joint moments and free moments were applied either on the thigh to augment hip flexion or on the shank to augment knee extension. Two realizations of joint moments on the hip were simulated, with the reaction moment applied to either the pelvis or the contralateral thigh. The simulation results show that assisting hip flexion with either actuation paradigm on the thigh can result in full recovery of gait with a margin of stability and leg kinematics closely matching the unperturbed case. However, when assisting knee extension with moments on the shank, free moment effectively assist balance but joint moments with the reaction moment on the thigh do not. For joint moments assisting hip flexion, placement of the reaction moment on the contralateral thigh was more effective in achieving the desired limb dynamics than placing the reaction on the pelvis. Poor choice of placement of reaction moments may therefore have detrimental consequences for balance recovery, and removing them entirely (i.e., free moment) could be a more effective and reliable alternative. These results challenge conventional assumptions and may inform the design and development of a new generation of minimalistic wearable devices to promote balance during gait.

Project description:Background and objectivePrediction of voluntary upper extremity (UE) movement recovery is largely unknown in patients with little voluntary UE movement at admission. The present study aimed to investigate (1) the extent and variation of voluntary UE movement recovery, and (2) the best predictive model of the recovery of voluntary UE movement by clinical variables in patients with severe UE paresis.DesignProspective cohort study.Methods140 (out of 590) stroke patients with severe UE paresis completed all assessments. Voluntary UE movement was assessed using the UE subscale of the Stroke Rehabilitation Assessment of Movement (STREAM-UE). Two outcome measures, STREAM-UE scores at discharge (DC(STREAM-UE)) and changes between admission and discharge (Δ(STREAM-UE)), were investigated to represent the final states and improvement of the recovery of voluntary UE movement. Stepwise regression analyses were used to investigate 19 clinical variables and to find the best predictive models of the two outcome measures.ResultsThe participants showed wide variation in both DC(STREAM-UE) and Δ(STREAM-UE). 3.6% of the participants almost fully recovered at discharge (DC(STREAM-UE) > 15). A large improvement (Δ(STREAM-UE) >= 10) occurred in 16.4% of the participants, while 32.9% of the participants did not have any improvement. The four predictors for the DC(STREAM-UE) (R(2) = 35.0%) were 'baseline STREAM-UE score', 'hemorrhagic stroke', 'baseline National Institutes of Health Stroke Scale (NIHSS) score', and 'cortical lesion excluding primary motor cortex'. The three predictors for the Δ(STREAM-UE) (R(2) = 22.0%) were 'hemorrhagic stroke', 'baseline NIHSS score', and 'cortical lesion excluding primary motor cortex'.ConclusionsRecovery of voluntary UE movement varied widely in patients with severe UE paresis after stroke. The predictive power of clinical variables was poor. Both results indicate the complex nature of voluntary UE movement recovery in patients with severe UE paresis after stroke.

Project description:BACKGROUND:Wearable activity monitors that track step count can increase the wearer's physical activity and motivation but are infrequently designed for the slower gait speed and compensatory patterns after stroke. New and available technology may allow for the design of stroke-specific wearable monitoring devices, capable of detecting more than just step counts, which may enhance how rehabilitation is delivered. The objective of this study was to identify important considerations in the development of stroke-specific lower extremity wearable monitoring technology for rehabilitation, from the perspective of physical therapists and individuals with stroke. METHODS:A qualitative research design with focus groups was used to collect data. Five focus groups were conducted, audio recorded, and transcribed verbatim. Data were analyzed using content analysis to generate overarching categories representing the stakeholder considerations for the development of stroke-specific wearable monitor technology for the lower extremity. RESULTS:A total of 17 physical therapists took part in four focus group discussions and three individuals with stroke participated in the fifth focus group. Our analysis identified four main categories for consideration: 1) 'Variability' described the heterogeneity of patient presentation, therapy approaches, and therapeutic goals that are taken into account for stroke rehabilitation; 2) 'Context of use' described the different settings and purposes for which stakeholders could foresee employing stroke-specific wearable technology; 3) 'Crucial design features' identified the measures, functions, and device characteristics that should be considered for incorporation into prospective technology to enhance uptake; and 4) 'Barriers to adopting technology' highlighted challenges, including personal attitudes and design flaws, that may limit the integration of current and future wearable monitoring technology into clinical practice. CONCLUSIONS:The findings from this qualitative study suggest that the development of stroke-specific lower extremity wearable monitoring technology is viewed positively by physical therapists and individuals with stroke. While a single, specific device or function may not accommodate all the variable needs of therapists and their clients, it was agreed that wearable monitoring technology could enhance how physical therapists assess and treat their clients. Future wearable devices should be developed in consideration of the highlighted design features and potential barriers for uptake.

Dataset Information

Recovery of paretic lower extremity loading ability and physical function in the first six months after stroke.

Publications

Recovery of paretic lower extremity loading ability and physical function in the first six months after stroke.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets