动力膝关节假肢对完整关节生物力学在日常生活中持续活动的影响:一系列案例
概括
动力膝关节假肢可能会减少截肢者过度使用完整关节的情况. 这项研究发现,与被动设备相比,先进的假肢设备在日常活动中减少了关节负荷.
科学领域:
- 生物力学 生物力学
- 假肢手术 假肢手术是一门专业.
- 康复工程 康复工程
背景情况:
- 下肢假肢使用者经常经历完整关节的过度使用,导致由于设备缺乏积极工作而导致退化和疼痛.
- 虽然动力假肢提供了潜在的解决方案,但单关节设备的临床结果一直不一致,研究往往忽视了现实世界的活动需求.
研究的目的:
- 分析动力膝关节假肢对完整关节时刻的影响,并在连续日常活动中对膝盖以上截肢者进行工作.
- 在模拟的现实世界使用场景中,比较动力假肢与被动装置的生物力学效应.
主要方法:
- 一个涉及三名膝盖以上截肢受试者的案例系列.
- 试验对象使用动力膝关节假肢和他们的处方被动装置执行了一系列连续的日常活动 (平行走路,爬楼梯/下楼,坐立/站立) .
- 对两种设备进行了完整的关节时刻和工作分析.
主要成果:
- 动力假肢减少了平行时的部曲的峰值时刻,但增加了峰值延伸时刻.
- 除了平行行走外,所有其他活动的峰值膝盖伸展时刻都减少了.
- 至少有两名受试者在登山活动中显示出减少的总正面工作,并在下降活动中减少了总负面工作,使用动力假肢.
结论:
- 动力膝关节假肢在模拟现实世界使用的条件下,在减轻下肢截肢者过度使用完整关节的潜力.
- 这项技术可能有助于减少假肢使用者的关节负荷和相关退行和疼痛.
相关概念视频
Ankle Joint
2.9K
The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
2.9K
Knee Joint
3.2K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
3.2K
Classical Conditioning in Daily Life
2.2K
Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
John B. Watson and Rosalie Rayner famously demonstrated the development of fear through classical conditioning in their experiment with Little Albert. They paired the...
2.2K
Sustainable Development
15.1K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
15.1K
Characteristics of Life
260.6K
Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
260.6K
Half-life of a Reaction
38.9K
The half-life of a reaction (t1/2) is the time required for one-half of a given amount of reactant to be consumed. In each succeeding half-life, half of the remaining concentration of the reactant is consumed. For example, during the decomposition of hydrogen peroxide, during the first half-life (from 0.00 hours to 6.00 hours), the concentration of H2O2 decreases from 1.000 M to 0.500 M. During the second half-life (from 6.00 hours to 12.00 hours), the concentration decreases from 0.500 M to...
38.9K


