Use of Vibrotactile Feedback to Increase Propulsion in Individuals With Chronic Stroke
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 32
- 主要终点
- Walking Speed
研究概览
简要总结
Stroke survivors often walk more slowly and may have difficulty producing the movements needed to walk efficiently. This study will evaluate whether vibrotactile feedback, delivered through small wearable devices that provide vibrations during walking, can help individuals with chronic stroke change specific walking movements related to walking speed, propulsion, and balance.
Participants will complete a single study visit at Bucknell University. During the visit, participants will perform several walking trials with and without vibrotactile feedback and will complete common clinical mobility and balance assessments. Motion capture technology and wearable sensors will be used to measure movement during walking.
The goal of this study is to better understand how vibrotactile feedback can be used to improve walking performance after stroke and to support the future development of rehabilitation approaches for stroke survivors.
详细描述
Post-stroke gait rehabilitation frequently targets walking speed because improved walking speed is associated with greater functional mobility and community participation. Forward propulsion is strongly related to walking speed, but the biomechanical concepts commonly targeted in rehabilitation can be difficult for patients to understand and apply during walking. Vibrotactile biofeedback may provide a simple and intuitive method of promoting desirable gait modifications by delivering real-time feedback based on clinically meaningful movement parameters.
The purpose of this study is to evaluate the immediate effects of vibrotactile feedback on walking biomechanics in individuals with chronic stroke. Specifically, the study will investigate whether vibrotactile feedback can increase walking speed and forward propulsion, improve symmetry of gait-related measures, and reduce lateral trunk sway during walking. The study will also explore the use of wearable inertial measurement units (IMUs) to objectively quantify movement during common clinical mobility and balance assessments.
Participants will complete a single study visit at the Bucknell University Biomechanics Laboratory. During the visit, motion capture technology, wearable inertial measurement units, timing gates, and force plates will be used to measure walking biomechanics. Participants will complete walking trials under baseline and vibrotactile feedback conditions targeting trailing limb angle, ankle plantarflexion, and trunk sway. Participants will also complete the Timed Up and Go (TUG) assessment and the Berg Balance Scale (BBS).
The information collected in this study will be used to improve understanding of how vibrotactile feedback can influence gait biomechanics after stroke and may support future development of rehabilitation approaches intended to improve walking function and mobility in stroke survivors.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age 18 to 85 years
- •Willing and able to provide informed consent
- •Single unilateral stroke at least 6 months prior to enrollment
- •ICD diagnosis code for hemiparesis (I69.35X)
- •Independently ambulatory (cane acceptable; orthosis may require further evaluation)
- •Resting heart rate 40 to 100 beats per minute
- •Resting blood pressure 90/60 to 170/90 mmHg
- •Active hip extension of at least 5 degrees
- •Active ankle dorsiflexion to neutral with the knee extended
排除标准
- •Evidence of cerebellar stroke
- •Other neurological conditions
- •Lower-limb botulinum toxin injections within the previous 4 months
- •Pain that limits walking
- •Unable to communicate with investigators
- •Signs of unilateral neglect
- •Unexplained dizziness within the previous 6 months
- •Fall within the previous 6 months
- •Congestive heart failure
- •Chronic obstructive pulmonary disease
- •Severe peripheral vascular disease
- •Score greater than 1 on question 1b of the NIH Stroke Scale
- •Score greater than 0 on question 1c of the NIH Stroke Scale
- •Currently pregnant
研究组 & 干预措施
Vibrotactile Feedback Walking Assessment
Participants with chronic stroke will complete a single study visit that includes baseline walking assessment, vibrotactile feedback walking conditions targeting trailing limb angle, ankle plantarflexion, and trunk sway, and clinical mobility and balance assessments. All participants will complete all study conditions and serve as their own controls.
干预措施: Vibrotactile Feedback System (Device)
结局指标
主要结局
Walking Speed
时间窗: Single study visit (Day 1)
Walking speed measured during walking trials using timing gates and compared between baseline and vibrotactile feedback conditions.
次要结局
- Forward Propulsion(Single study visit (Day 1))
- Trailing Limb Angle(Single study visit (Day 1))
- Ankle Plantarflexion Angle(Single study visit (Day 1))
- Gait Symmetry(Single study visit (Day 1))
- Lateral Trunk Sway(Single study visit (Day 1))
- Timed Up and Go Assessment(Single study visit (Day 1))
- Berg Balance Scale Assessment(Single study visit (Day 1))