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首页> 外文OA文献 >Comparing Dominant and Non-Dominant Torque and Work Using Biodex 3 Isokinetic Protocol for Knee Flexors and Extensors
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Comparing Dominant and Non-Dominant Torque and Work Using Biodex 3 Isokinetic Protocol for Knee Flexors and Extensors

机译：比较主要和非主要扭矩以及使用Biodex 3等速方案进行膝关节屈伸肌和伸肌的工作

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INTRODUCTION. There is often a misconception when looking at comparing dominant and non-dominant limbs of any sort. Although there will be a lack of control in non-dominant limbs compared to dominant, the amount of torque and power associated with each limb may be equal; even so, there may be an instance of bilateral deficit, where even though the dominant limb may be used to do work on a specific limb, the non-dominant limb may still receive strength benefits. PURPOSE. The main purpose of this study is to directly relate ability (torque and total work) in both dominant and non-dominate limbs with a focus on knee flexion and extension. METHODS. Participants: Four (N = 4; 4 males, 0 females) volunteers were utilized for this study. The average age of the participants were 24.5 + 1.73 years old, average height was 71.75 + 3.20” (inches or 182.245 centimeters), and average weight was 183.26 + 45.78 pounds (83.3 kilograms). Methodology: Upon arriving to the lab, each participant was measured for height (recorded in inches) and weight (recorded in kilograms), as well as age was recorded (years). Each participant was added into the system when they attempted to perform the protocol. The protocol utilized isokinetic concentric/concentric contractions on the knee for three separate speeds or sets (30/s, 60/s, and 90/s); each set included 5 repetitions. Upon completion of each set (5 repetitions) the participant would be allowed 10 seconds of rest. Following the same protocol, all participants would complete the test using their non-dominate leg. RESULTS. The value and percent difference associated with dominant and non-dominant extension (both torque and work) were rather large. As seen in the percent difference section, the value of each percent difference were at least 7.83% (min) and as high as 27.43% (max). There was also a noticeable percent difference associated with 90/s in flexion for both torque and work between dominant and non-dominant with values at torque = 19.97% and work = 16.23%. DISCUSSION. This study may help provide insight into how dominant and non-dominant limbs may be trained and how they may be equal even without training. This may be untrue due to many variables, but this study has allowed a certain insight into how dominant and non-dominant limbs may be equal in gross motor movements. Results that find non-dominant to dominant differences may be errors due the tester and/or the participant; it may be due to the participant because of situational awareness, they may learn the protocol and movements with one leg and adjust using the other.
机译：介绍。在比较任何种类的优势和非优势肢体时，常常会产生误解。尽管与支配性肢体相比，支配性肢体将缺乏控制力，但与每条肢体相关的扭矩和功率量可能相等。即使这样，也可能会出现双侧赤字的情况，即使优势肢可以用于特定肢体的工作，非优势肢仍可能获得力量优势。目的。这项研究的主要目的是直接关联主要和非主要肢体的能力（扭矩和总功），重点是膝盖的屈伸。方法。参加者：四名（N = 4；男4名，女0名）志愿者用于这项研究。参与者的平均年龄为24.5 + 1.73岁，平均身高为71.75 + 3.20英寸（英寸或182.245厘米），平均体重为183.26 + 45.78磅（83.3千克）。方法：到达实验室后，测量每个参与者的身高（以英寸为单位记录）和体重（以千克为单位记录），并记录年龄（年）。每个参与者尝试执行协议时都被添加到系统中。该协议利用膝盖上的等速同心/同心收缩以三种不同的速度或速度组（30/ s，60/ s和90/ s）进行；每组包括5次重复。完成每组动作（重复5次）后，参与者可以休息10秒钟。遵循相同的协议，所有参与者都将使用其非支配腿完成测试。结果。与主要和非主要伸展（扭矩和功）相关的值和百分比差异都很大。从百分比差异部分可以看出，每个百分比差异的值至少为7.83％（最小值），最高为27.43％（最大值）。在显性和非显性之间，扭矩和功的屈曲度均为90/ s时，也存在明显的百分比差异，扭矩值分别为19.97％和功= 16.23％。讨论。这项研究可能有助于深入了解如何训练占主导地位的肢体和非占主导地位的肢体，以及即使未经训练也如何使它们平等。由于许多变量，这可能是不正确的，但这项研究已使特定的肢体在总的运动运动中如何相等的观点有了一定的认识。发现非主要差异而不是主要差异的结果可能是测试人员和/或参与者的错误；这可能是由于参与者因情境意识所致，他们可能会用一只腿学习规程和动作，而用另一只腿进行调整。

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