Effects of Dynamic Stability Training Using Water Inertia Load on Lower Limb Joint Moments, Gait and Balance in Elderly Women
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 24
- 试验地点
- 2
- 主要终点
- Change in step
研究概览
简要总结
This study highlights that age-related neuromuscular changes negatively impact muscle strength, balance, joint mobility, and cardiovascular health, which in turn affect daily life activities and independence. In particular, aging leads to slower gait speeds and increased metabolic costs associated with shifting the body's center of mass, which are closely linked to functional decline in older adults. While previous studies have focused primarily on spatiotemporal variables like stride length and walking speed, there is a lack of research examining exercise interventions that analyze lower limb joint moments. This study aims to assess the effects of dynamic stability training using water inertia load on the distribution of lower limb joint moments, gait, and balance in older adults, ultimately providing valuable insights to support improvements in efficient gait function among the elderly.
详细描述
- Study Participants
This study targets healthy women aged 65 and older who have not engaged in regular exercise in the past six months. Participants will be recruited through posted announcements at Mirine Center and Busan University of Foreign Studies in Busan. Individuals who express interest and sign the consent form after being informed of the study's purpose and eligibility criteria will be selected as participants.
The appropriate sample size was determined using G*Power 3.1 software, with an effect size of 0.32, a power of 0.8, and a significance level of 0.05, resulting in an estimated sample size of 18 participants. However, to account for potential dropouts, the study will proceed with a total of 30 participants, divided into 15 in the experimental group and 15 in the control group. Participants will be randomly assigned to either the experimental or control group on the first day of exercise at a 1:1 ratio. 2. Measurement
- Balance Measurement For this study, a ground reaction force plate (AMTI-OR6, Watertown, MA, USA) will be used to evaluate static balance. The device assesses the range, velocity, and Root Mean Square (RMS) of the center of pressure (COP) using pressure sensors.
To prevent visual distractions during balance assessment, the surrounding environment will be blocked off with curtains. Both legs will be evaluated. For the single-leg standing test, participants will be instructed to stand barefoot, with arms crossed in front of their chest, supporting one leg while lifting the other leg with the knee bent at a 90-degree angle, maintaining the position for 40 seconds.
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
- None
入排标准
- 年龄范围
- 65 Years 至 —（Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Healthy women over the age of 65
排除标准
- •Musculoskeletal injury within the last 3 months Severe cardiopulmonary disease (heart failure, myocardial infarction) Use of anxiolytics, antidepressants, or sedatives Chronic lung disease Surgery within the last 6 months
结局指标
主要结局
Change in step
时间窗: 6 weeks and 12 weeks after baseline
Step time is measured in seconds using a 3D motion capture system
Change in stride time
时间窗: 6 weeks and 12 weeks after baseline
Stride time is measured in seconds using a 3D motion capture system.
Change in cadence
时间窗: 6 weeks and 12 weeks after baseline
Cadence is measured in steps per minute using a 3D motion capture system
Change in foot off
时间窗: 6 weeks and 12 weeks after baseline
Foot off is measured as a percentage of the gate cycle using a 3D motion capture system.
Change in step length
时间窗: 6 weeks and 12 weeks after baseline
Step length is measured in meters per second (m/s) using a 3D motion capture system
Change in stride length
时间窗: 6 weeks and 12 weeks after baseline
Stride length is measured in meters per second (m/s) using a 3D motion capture system
Change in single support phase
时间窗: 6 weeks and 12 weeks after baseline
The single support phase of the gait cycle is measured as a percentage using a 3D motion capture system
Change in dubble support phase
时间窗: 6 weeks and 12 weeks after baseline
The double support phase of the gait cycle is measured as a percentage using a 3D motion capture system
Change in balance stability
时间窗: 6 weeks and 12 weeks after baseline
Balance was assessed using a single-leg stance test, measuring the center of pressure(COP) sway in both anterior posterior (AP) and medial-lateral (ML) directions.
Change in Lower limb joint moments
时间窗: 6 weeks and 12 weeks after baseline
The moments of the lower limb joints, specifically at the hip and ankle, are measured
Change in walking speed
时间窗: 6 weeks and 12 weeks after baseline
Walking speed is measured in meters per second using a 3D motion capture system.
次要结局
未报告次要终点
研究者
Hyun Ju Kim
Principal Investigator
Busan University of Foreign Studies