Effects of Sit-to-stand Training With Interactive Feedback on Muscle Contraction Sequences and Weight Bearing Symmetry in Individuals With Chronic Stroke
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Sit to stand performance: change in onset time of muscle contraction sequences
研究概览
简要总结
The major problems of people with chronic stroke include muscle weakness, sensory alteration, and inter-muscular coordination impairment. Inter-muscular coordination impairment caused altered muscle contraction sequences and weight-bearing asymmetry during functional activities. Sit-to-stand (STS) training is often used to improve functional activities among post-stroke subjects. However, the improvement may come from compensatory movements. Using compensatory movement may cause muscle weakness in the affected side and increase fall risk. This study will develop a novel STS training system with interactive visual and audio feedback emphasizing weight transferring and weight bearing. The present study aims to investigate the effects of sit-to-stand training with interactive visual and audio feedback on muscle contraction sequences and weight bearing symmetry in individuals with chronic stroke.
详细描述
This is a prospective randomized single-blinded controlled trial with pre- and post-measurements. 20 individuals will be recruited, and randomly assigned to experimental or control group. Statistical data analysis will be done by SPSS 24.0. Baseline characteristics will be analyzed using independent t-test or Chi-square test. Repeated measures two-way analysis of variance (ANOVA) with Tukey's post-hoc analysis will be used for time-by-group comparisons. The significant level is set at 0.05.
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
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 20 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of stroke ≥ 6 months
- •Mini-mental state examination (MMSE) ≥ 24 points
- •Brunnstrom lower limb recovery stage: ≥ stage 3
- •Be able to independently perform STS for at least 10 times
- •Single STS >1.7 seconds
- •Be able to walk ≥10 meters independently
排除标准
- •Any other musculoskeletal, neurological and cardiovascular diseases
- •Have visual or language impairments
结局指标
主要结局
Sit to stand performance: change in onset time of muscle contraction sequences
时间窗: 5 minutes, Change from baseline onset time at 3-week post-test
Use the surface electromyography to evaluate the "onset" time (% MT, EMG activities ≥ 2 SD of the baseline for ≥100 ms) of different muscles recruited during sit to stand (rectus femoris, biceps femoris, gluteus maximus, tibialis anterior, gastrocnemius, and soleus)
Sit to stand performance: change in peak force time of muscle contraction sequences
时间窗: 5 minutes, Change from baseline peak force time at 3-week post-test
Use the surface electromyography to evaluate the "peak force" time (% MT, maximal EMG activities) of different muscles recruited during sit to stand (rectus femoris, biceps femoris, gluteus maximus, tibialis anterior, gastrocnemius, and soleus)
Sit to stand performance: change in offset time of muscle contraction sequences
时间窗: 5 minutes, Change from baseline offset time at 3-week post-test
Use the surface electromyography to evaluate the "offset" time (% MT, EMG activities \< 2 SD of the baseline for ≥100 ms) of different muscles recruited during sit to stand (rectus femoris, biceps femoris, gluteus maximus, tibialis anterior, gastrocnemius, and soleus)
Sit to stand performance: change in COP sway pathway
时间窗: 5 minutes, Change from baseline COP sway pathway at 3-week post-test
Use the force plates to evaluate the total length (cm) of the moving pathway of the overall center of pressure in X or Y axis individually
Sit to stand performance: change in weight bearing symmetry
时间窗: 5 minutes, Change from baseline weight bearing symmetry at 3-week post-test
Use the force plates to evaluate the "cumulative vertical force " (% of body weight), and calculate with the "asymmetry ratio" = \|1-affected side/less affected side\|
次要结局
- Gait performance: change in symmetry of step time(5 minutes, Change from baseline symmetry of step time at 3-week post-test)
- Gait performance: change in symmetry of gait speed(5 minutes, Change from baseline symmetry of gait speed at 3-week post-test)
- Gait performance: change in symmetry of step length(5 minutes, Change from baseline symmetry of step length at 3-week post-test)
- Sit to stand performance: change in sit to stand duration(5 minutes, Change from baseline sit to stand duration at 3-week post-test)