老年人体力表现与张力学和肌肉学参数之间的相关性
Noé Labata-Lezaun1,2, Vanessa González-Rueda2,3,4, Luis Llurda-Almuzara2,5
1Department of Basic Sciences, Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallès, Spain.
Healthcare (Basel, Switzerland)
|August 12, 2023
概括
功能测试是评估老年人的关键. 虽然张力力学和肌肉力学显示了与特定的身体性能测量措施的一些相关性,但建议使用技术进一步研究肌肉质量.
科学领域:
- 老年学是指老年学的学科.
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 在老年人中评估身体表现和肌肉力量对于保持独立性和生活质量至关重要.
- 张力学和肌肉测量是评估肌肉机械性能的新兴技术.
- 了解这些技术与功能结果之间的关系可以为更好的评估策略提供信息.
研究的目的:
- 为了研究体力表现和肌肉力量之间的相关性,在老年人中用张力学和肌肉学衍生出的变量来研究体力表现和肌肉力量之间的相关性.
- 探索新的肌肉评估技术与已建立的功能测试相关的实用性.
主要方法:
- 一项观察性研究涉及52名能够完成功能测试的老年人.
- 测量包括最大辐射肌位移 (Dm) 和收缩时间 (Tc) 通过张力学图,以及肌肉硬度通过肌肉测量为直骨和巨大的横骨.
- 身体表现使用短物理表现电池 (SPPB),定时上升和去 (TUG),五次坐到站 (FTSS) 测试和步行速度,以及对称膝盖延伸和握力等进行了评估.
主要成果:
- 在SPPB和大腿直肠 (rho = 0.491) 和大腿侧肠Dm (rho = 0.329) 之间观察到显著的相关性.
- 在FTSS测试显著相关联的直骨骨 Dm (rho = -0.340) 和横骨骨 Dm (rho = -0.304) 和硬度 (rho = -0.345).
- 张力肌谱/肌肉测量和TUG,步行速度,握力或同位式膝盖伸展力之间没有发现显著的相关性.
结论:
- 功能测试仍然是评估老年人的身体状况的优先事项.
- 进一步的研究是有必要的,以探索肌肉质量评估技术的潜力,如张力学图和肌肉测量在这个人群中.
相关概念视频
The Effect of Aging on Tissues
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Isotonic and Isometric Muscle Contractions
Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while the...
Isotonic contractions
Isotonic contractions occur when a muscle changes length while the...
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
Alterations in Muscle Tone ll
Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
Alterations in Muscle Tone lll
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...


