揭开软骨发育不全成人姿势控制的神秘面纱。

IF 2.6 Q1 SPORT SCIENCES Journal of Functional Morphology and Kinesiology Pub Date : 2024-02-26 DOI:10.3390/jfmk9010039
Inês Alves, Maria António Castro, Sofia Tavares, Orlando Fernandes
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引用次数: 0

摘要

背景:软骨发育不全是一种罕见的遗传性骨骼疾病,其特点是身材矮小不成比例。关于软骨发育不全成人的姿势控制以及下肢延长(干预)如何与身体动力学相互作用的证据十分有限。本研究调查了自然生长(N)和下肢延长(LL)的软骨发育不良成人在安静站立时的摇摆变异性:16名成年人进行了双侧/单侧站立任务。分析了前胸/中外侧方向的线性(总偏移、振幅和椭圆面积)和非线性(样本熵和相关维度)压力中心摇摆指标。研究还探讨了姿势指标、力量和体力活动之间的关系。计算了组间统计数据:结果:LL 组的线性摇摆幅度增大,表明姿势偏差较大,样本熵和相关维度降低,表明矫正更加僵硬和重复。N 组则表现出更多不可预测和适应性的动作矫正。在力量和姿势测量之间出现了许多相关性,干预会改变两者之间的关系:结论:患有软骨发育不全症的成年人表现出的独特平衡策略会受到干预措施的影响。结果表明,与自然发展相比,LL 与可变性和适应性的改变有关。与肌肉力量的关系凸显了肌肉能力在该人群生长改变后姿势控制调节中的关键作用。
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Unveiling the Chaos in Postural Control in Adults with Achondroplasia.

Background: Achondroplasia is a rare genetic skeletal condition characterized by disproportionate short stature. There is limited evidence on postural control in adults with achondroplasia and how lower limb lengthening (intervention) interacts with body dynamics. This study investigated sway variability during quiet standing in adults with achondroplasia with natural growth (N) and with lower limb lengthening (LL).

Methods: Sixteen adults performed bilateral/unilateral standing tasks. Linear (total excursion, amplitude, and ellipse area) and nonlinear (sample entropy and correlation dimension) center of pressure sway metrics were analyzed in the anteroposterior/mediolateral directions. Relationships between posture metrics, strength, and physical activity were explored. Between-groups statistics were calculated.

Results: The LL group exhibited amplified linear sway, indicating larger postural deviations, and reduced sample entropy and correlation dimension, indicative of more rigid and repeated corrections. The N group exhibited more unpredictable and adaptive movement corrections. Numerous correlations emerged between strength and posture measures, with relationships altered by intervention.

Conclusions: Adults with achondroplasia display distinct balance strategies influenced by intervention. The results indicate that LL is associated with altered variability and adaptability compared to natural development. Relationships with muscle strength spotlight a key role of muscle capacity in postural control modulation after growth alterations in this population.

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来源期刊
Journal of Functional Morphology and Kinesiology
Journal of Functional Morphology and Kinesiology Health Professions-Physical Therapy, Sports Therapy and Rehabilitation
CiteScore
4.20
自引率
0.00%
发文量
94
审稿时长
12 weeks
期刊最新文献
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