在前十字带重建后的功能性表现的跳跃测试替代方案
Zachary Ripic1,2, Michael Letter2, Brandon Schoenwether1
1Department of Kinesiology and Sport Sciences, University of Miami, Coral Gables, FL, United States of America.
PloS one
|August 16, 2024
概括
本研究介绍了一种简单的方法,用于测量前十字带重建 (ACLR) 患者的跳跃测试中的反应强度. 结果显示,反应力和肌肉力量之间存在联系,突出显示了手术腿部的缺陷.
科学领域:
- 生物力学 生物力学
- 康复科学 康复科学 康复科学
- 运动医学 运动医学
背景情况:
- 前十字带重建 (ACLR) 往往导致持续的功能缺陷.
- 评估反应强度对于ACLR后恢复运动的准备至关重要.
- 目前用于反应强度评估的方法可能很复杂,需要专门的设备.
研究的目的:
- 开发一种简单的方法来确定6米定时跳跃测试 (6mTH) 期间的反应强度.
- 在ACLR患者中评估反应强度和异动力学峰值扭矩之间的关联.
- 为了确定手术和非手术腿之间以及性别之间的功能性表现的潜在差异.
主要方法:
- 29名ACLR患者 (手术后≥4个月) 接受了异动力学测试 (四肢和腿筋在60,180,300度·s-1) 和6mTH.
- 反应强度比 (RSR) 计算使用来自6mTH的运动捕捉数据.
- 调整后的RSR计算是为了考虑到个体运动策略.
- 用重复测量相关性和双向混合ANOVA进行统计分析.
主要成果:
- 在所有测试转速之间观察到RSR (和调整后的RSR) 和异动力学峰值扭矩之间的中等正相关性 (r = .527至 .577).
- 经过手术的腿部与未经手术的腿部相比,在所有测试变量 (异动力扭矩和跳跃性能) 中发现了显著的缺陷.
- 同性峰值扭矩和定时跳跃时间显示男性和女性参与者之间存在显著差异.
结论:
- 建议的简单方法显示了ACLR患者的反应强度和肌肉强度之间的有希望的关联.
- 在ACLR后的手术肢体中仍然存在显著的功能缺陷.
- 需要使用可访问技术进行进一步的验证,以便将这种方法转化为ACLR康复的临床实践.
更多相关视频
相关概念视频
Test Cross
Alleles are different forms of the same gene. Humans and other diploid organisms inherit two alleles of every gene, one from each parent.
Flow Table Test
The flow table test is an established method used to assess the workability of concrete, particularly useful for evaluating highly flowable concrete mixes. This test employs an apparatus that consists of a wooden board topped with a steel plate, collectively weighing 35 pounds. The board is connected to a base via a hinge and measures 27.6 inches on each side.
Concrete is placed within a truncated cone mold that is 8 inches high with an 8-inch base diameter and a 5-inch top diameter. The...
Concrete is placed within a truncated cone mold that is 8 inches high with an 8-inch base diameter and a 5-inch top diameter. The...
Design Example: Maintaining Level of an Embankment
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
Hydraulic Jump: Problem Solving
To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream Velocity:When the downstream gate closes, a hydraulic jump forms, traveling upstream at 2 meters per second. This wave speed combines with the initial channel flow velocity, creating an effective upstream velocity.Identify Flow Velocities Before and After the Hydraulic Jump:Upstream of the hydraulic jump, the effective flow velocity includes both the...
First Derivative Test: Problem Solving
Imagine an asset price that crashes to a low point, rebounds sharply as bargain-hunters step in, and then gradually declines. Such behavior can be modeled with a smooth function whose turning points represent locally overvalued and undervalued regions. A convenient example that captures rebound followed by decay is:The high and low points of this curve are identified using the first derivative test, which determines where the function changes from increasing to decreasing or vice versa. To...
Continuity of a Function
A function is continuous at a point a if three conditions are met: the function is defined at a, the limit of the function as x approaches a exists, and this limit equals the function’s value. Mathematically, this is written asThis definition ensures the graph of the function does not exhibit any breaks, holes, or jumps at that point. Discontinuities occur when any of these conditions fail. A removable discontinuity exists when the two-sided limit exists but the function is either undefined or...


