Electrical Stimulation for Improving Balance in Diabetes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 28
- 试验地点
- 2
- 主要终点
- Gait Test (LegSys System)
研究概览
简要总结
This is a double-blind randomized clinical trial. Both patients and the podiatrist that will evaluate and monitor study patients will be blinded to electrical stimulation application. The manufacturer of the units will be asked to not inform which patient received which unit. Each unit will be coded with a unique identification number, and the manufacturer units revealed their status, placebo or electric stimulation, only at the end of data collection for the last patient. Subsequently, the investigators could match the status of the identification numbers with the corresponding units to start analyzing the data. Patients that receive an activated electrical stimulation unit will receive a standard dose of 50 volts as described above.
The investigator will enroll a cohort of 80 diabetes (type II) patients with peripheral neuropathy (see section 6 for sample size justification). The diagnosis of diabetes mellitus will be based on World Health Organization criteria.(World-Health-Organization 1999). The inclusion and exclusion criteria are described in table III. The clinical assessments are described in table IV. The investigator will discuss the study design, duration, and its risks with potential subjects asked to participate. The participant will be provided with a consent form to read at their leisure. The investigator will be available to answer questions or provide more explanation as requested by potential participants and their family.
详细描述
There will be a total of five study visits required for each patient. There will be one scheduled visit for baseline evaluation and four additional visits at 2 weeks, 4 weeks, 6 weeks during treatment and 8 weeks (2 weeks post stopping the treatment). The baseline visit will involve completion of a standardized intake form, which will include pertinent demographics such as age, height, weight, education level, occupation, and comorbidities of the study patient (see Table IV). Several clinical assessments will be performed at baseline as well as at each study visit to evaluate severity of neuropathy and skin perfusion as described in the table IV.
Clinical Assessments Baseline Medical History: This will include: duration and type of diabetes, type of diabetes medication (insulin, oral, combination therapy, diet), previous history of foot ulcers, previous history of falls, amputation (toe, foot), lower extremity bypass, lower extremity angioplasty, Coronary artery bypass surgery, cardiac angioplasty, arthritis, liver disease, osteoporosis, malignancy, and bone tumors. The Kaplan co-morbidity index will be used to record disease severity. The New York Heart Association criteria will be used to classify congestive heart failure, and the National Kidney Foundation Disease Outcomes Quality Initiative Clinical Practice Guidelines for chronic kidney disease to stage kidney disease. Research staff will document all prescription and over-the-counter medications. Research staff will measure height and weight to determine body mass index (BMI).
Baseline Social Factors: Marital status, years of education, type of work, tobacco history (pack years, current smoker, current use of chewing tobacco, previous smoker, no tobacco history), drug history (current, previous history, no drug history), education, occupation, and alcohol history will be assessed.
Screening Test for frailty assessment: Fried Frailty Criteria: Weight loss >10 pounds in preceding year; Grip strength; Low levels of physical activity; 15 foot walk time; Exhaustion[13] Screening for cognitive problem: MMSE score [15] Foot questionnaire and foot exam
Baseline & each 2- week follow-up (week 2, week 4, week 6, and week 8):
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 89 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Men or women (non pregnant) 18 years old or above
- •Diagnosed for Diabetes Mellitus (type 2)* and ADA criteria Diabetes
- •Evidence of peripheral neuropathy on neurologic examination
- •Identified by our clinical staff examination and based on the criteria explained in -ADA statement
- •Agreed to participate in this study and comply with instruction
排除标准
- •Amputation and active ulcers or infection
- •Cognitive deficits
- •MMSE score of 24 or lower
- •Unable to stand for more than 5 minutes (including symptomatic orthostatic hypotension or pain)
- •Any clinically significant orthopedic, muscular, or peripheral vascular disorders that affect balance
- •Alcohol or substance abuse within 6 months or major psychiatric disorder
结局指标
主要结局
Gait Test (LegSys System)
时间窗: 8 weeks
8 sensors will be attached to the legs and lower back using comfortable straps and will be asked to walk 20 meters on a flat surface, two times. A third 20 meter walk will be performed with an additional distractive cognitive task (counting -1). The 4th test will be fast walking. Walking performance (e.g., speed, cadence, and stability) and spatio-temporal parameters of gait (e.g., velocity, stride time, gait inter-cycle variability, double support, and gait initiation) will be measured at weeks 2, 4, 6 and 8.
Balance Test (BalanSense Device)
时间窗: 8 weeks
Postural control changes will be measured using the BalanSense device in subjects assigned to use the active Electrical Stimulation (intervention group) and subjects assigned to non-functional stimulator (sham group). Balance will be assessed for both groups at baseline and at each follow-up visit, weeks 2, 4, 6 and 8. Static balance and postural compensatory strategy will be assessed using the body worn sensor technology. Measurements taken with eyes closed and eyes open.
Peripheral Neuropathy Measured by Vibration Perception Threshold (VPT) Testing
时间窗: 8 weeks
We will evaluate Vibration Perception Threshold (VPT) Testing to evaluate large fiber neuropathy in the feet.
次要结局
未报告次要终点
研究者
Larry Lavery
Professor of Medicine
University of Texas Southwestern Medical Center