Effects of Task-Specific Step Training on Reactive Balance After Laboratory-Induced Trips: A Pilot Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- Trunk Angle at Touchdown of the First Recovery Step
研究概览
简要总结
The goal of this clinical trial is to evaluate a novel and pragmatic (i.e., not requiring specialized equipment) task-specific step training regimen that aims to improve reactive balance after tripping. The main questions it aims to answer are:
- Does this step training regimen improve reactive balance after tripping compared to no training?
- How well does this step training regimen improve reactive balance compared to treadmill training, which is a more commonly studied reactive balance training regimen that uses a specialized treadmill.
Participants will:
- complete step training or treadmill training (or no training if assigned to the control group) twice a week for three weeks
- experience a laboratory-induced trip three weeks later to evaluate their reactive balance
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 65 Years 至 80 Years（Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •65-80 years old
- •willing to use wearable sensors for 2-3 weeks (for a separate study)
- •no lower limb amputation
- •not weigh over 250 pounds
- •pass a telephone interview related to cognitive status
排除标准
- •participants must pass a health screening involving a questionnaire that will be reviewed by a health care specialist.
- •participants must not have clinical osteoporosis as indicated by a bone mineral density of the lumbar vertebra and proximal femur of t<-2.0 as obtained from dual energy x-ray absorptiometry (DEXA), or a DEXA scan completed within the last year.
结局指标
主要结局
Trunk Angle at Touchdown of the First Recovery Step
时间窗: 1 week after the 3-week intervention
After a laboratory-induced trip: Angle from vertical of a line connecting midpoint of greater trochanter markers and midpoint of the acromion markers
Trip Outcome
时间窗: 1 week after the 3-week intervention
This is a binary variable that has a value of either "fall" or "recovery." After a laboratory-induced trip, trip outcome will be assign to one of the following two values: "fall" if a participant is fully and continuously supported by the harness as observed from video, or if the harness force applied to the participant, integrated over time from trip onset until 1 second after touchdown of the first recovery step, is greater than 40% of body weight \* seconds. The harness force will be measured by a uniaxial load cell. "recovery" if the harness force applied to the participant, integrated over time from trip onset until 1 second after touchdown of the first recovery step, is less than 40% of body weight \* seconds. The harness force will be measured by a uniaxial load cell.
Trunk Angle at Touchdown of the First Recovery Step
时间窗: 1 week after the 3-week intervention
After a laboratory-induced trip: Angle from vertical of a line connecting midpoint of greater trochanter markers and midpoint of the acromion markers
Trip Outcome
时间窗: 1 week after the 3-week intervention
This is a binary variable that has a value of either "fall" or "recovery." After a laboratory-induced trip, trip outcome will be assign to one of the following two values: "fall" if a participant is fully and continuously supported by the harness as observed from video, or if the harness force applied to the participant, integrated over time from trip onset until 1 second after touchdown of the first recovery step, is greater than 40% of body weight \* seconds. The harness force will be measured by a uniaxial load cell. "recovery" if the harness force applied to the participant, integrated over time from trip onset until 1 second after touchdown of the first recovery step, is less than 40% of body weight \* seconds. The harness force will be measured by a uniaxial load cell.
次要结局
- Recovery Step Length(1 week after the 3-week intervention)
- Sacrum Height at Touchdown of the First Recovery Step(1 week after the 3-week intervention)
- Gait Speed(1 week after the 3-week intervention)
- Average Step Speed(1 week after the 3-week intervention)
- Trip Recovery Strategy(1 week after the 3-week intervention)
- Average Step Speed(1 week after the 3-week intervention)
- Trip Recovery Strategy(1 week after the 3-week intervention)
- Recovery Step Length(1 week after the 3-week intervention)
- Sacrum Height at Touchdown of the First Recovery Step(1 week after the 3-week intervention)
- Gait Speed(1 week after the 3-week intervention)