Acute Responses of Postural Alignment, Kinematic Synergy, and Intermuscular Coherence to Postural Muscle Facilitation
试验速览
- 阶段
- 不适用
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- Pooled intermuscular coherence
研究概览
简要总结
Clinicians frequently assess and intervene on postural alignment. However, research demonstrating the effects of exercise interventions in moving postural alignment toward an evidence-based standard is lacking. Part of the difficulty in establishing such evidence has been a lack of theory-motivated conceptions of what "good" posture is. In other words, the prevailing understanding of postural alignment is based on the negation of what has been observed to associate with bad outcomes. This study will build upon preliminary findings from our laboratory that define good postural alignment on theoretical grounds. The investigators will measure motion capture and muscle activation patterns during simple postural alignment tasks before and after 1) a corrective exercise intervention, or 2) a control intervention based designed to inhibit superficial muscle tension. The corrective exercise intervention is designed to counteract the natural patterns in which the human skeleton tends to collapse from a standing position under the influence of gravity. The control intervention consists of passive, partner-assisted stretching. Regardless of initial assignment, all participants will crossover (i.e. switch interventions) and repeat the study procedures after a 1-week washout period. Behavioral indicators of movement and nervous system coordination will be used to quantify alignment before and after exercise, as well as the consistency of those alignment patterns with theoretically-defined standards. The knowledge gained from this study will contribute to evidence-based definitions of healthy postural alignment and help identify effective interventions by which clinicians can promote good posture.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy adult
- •18 - 40 years of age
排除标准
- •Recent (< 6 months) history of lower extremity injury
- •Recent (< 6 months) history of other musculoskeletal or neurological disorder affecting balance
- •Contraindications to participation in physical activity
研究组 & 干预措施
Stretch Then Exercise
Participants in BA will perform the experimental (exercise) intervention second and the control (stretch) intervention first
干预措施: Stretch Then Exercise (Other)
Exercise Then Stretch
Participants in AB will perform the experimental (exercise) intervention first and the control (stretch) intervention second
干预措施: Exercise Then Stretch (Other)
Exercise Then Stretch
Participants in AB will perform the experimental (exercise) intervention first and the control (stretch) intervention second
干预措施: Stretch Then Exercise (Other)
Stretch Then Exercise
Participants in BA will perform the experimental (exercise) intervention second and the control (stretch) intervention first
干预措施: Exercise Then Stretch (Other)
结局指标
主要结局
Pooled intermuscular coherence
时间窗: Immediately after Intervention (Day 7)
Weighted average of frequency-domain correlations between muscle pairs belonging to anterior, posterior, and trunk muscle groups.
Euclidean distance from the vector describing subject-specific, simulated gravitational collapse
时间窗: Immediately after Intervention (Day 7)
This outcome is a cumulative descriptor of segment angle distance from the pattern in which an individual's posture would collapse. The reference point for each individual is calculated using both pre and post-intervention data for a given day.
Euclidean distance from the vector describing subject-specific, simulated gravitational collapse
时间窗: Immediately before Intervention (Day 1)
This outcome is a cumulative descriptor of segment angle distance from the pattern in which an individual's posture would collapse. The reference point for each individual is calculated using both pre and post-intervention data for a given day.
Euclidean distance from the vector describing subject-specific, simulated gravitational collapse
时间窗: Immediately after Intervention (Day 1)
This outcome is a cumulative descriptor of segment angle distance from the pattern in which an individual's posture would collapse. The reference point for each individual is calculated using both pre and post-intervention data for a given day.
Euclidean distance from the vector describing subject-specific, simulated gravitational collapse
时间窗: Immediately before Intervention (Day 7)
This outcome is a cumulative descriptor of segment angle distance from the pattern in which an individual's posture would collapse. The reference point for each individual is calculated using both pre and post-intervention data for a given day.
Pooled intermuscular coherence
时间窗: Immediately before Intervention (Day 1)
Weighted average of frequency-domain correlations between muscle pairs belonging to anterior, posterior, and trunk muscle groups.
Pooled intermuscular coherence
时间窗: Immediately after Intervention (Day 1)
Weighted average of frequency-domain correlations between muscle pairs belonging to anterior, posterior, and trunk muscle groups.
Pooled intermuscular coherence
时间窗: Immediately before Intervention (Day 7)
Weighted average of frequency-domain correlations between muscle pairs belonging to anterior, posterior, and trunk muscle groups.
次要结局
- Top-down kinetic chain continuity(Immediately after Intervention (Day 7))
- Top-down kinetic chain continuity(Immediately before Intervention (Day 1))
- Top-down kinetic chain continuity(Immediately after Intervention (Day 1))
- Top-down kinetic chain continuity(Immediately before Intervention (Day 7))
研究者
Stephen Glass
Assistant Professor
Radford University