旋转手套外部旋转的评估:同位数与同位素测试模式的对比
Luca Maestroni1,2, Filippo Beretta3, Fabio Civera1
1ReAct, Via Madonna della Neve, 24, 24121 Bergamo, Italy.
Journal of functional morphology and kinesiology
|January 21, 2026
概括
肩部外部旋转强度测试,无论是以同度测量还是以同度测量,在健康的成年人中都显示出出色的可靠性. 虽然同位测试显示了性别差异,但同位测试没有,表明它们捕捉了肩膀力量的不同方面.
科学领域:
- 整形外科 整形外科 整形外科
- 运动医学 运动医学
- 生物力学 生物力学
背景情况:
- 肩膀的外部旋转强度对于各种运动和日常活动至关重要.
- 需要可靠的评估方法来准确评估肩膀的力量.
- 现有的研究还没有完全比较肩膀外部旋转的同位体和同位体强度测试.
研究的目的:
- 为了确定同位素和同位素肩部外部旋转 (ER) 强度测试的会话内可靠性.
- 为了比较结果,并确定这些测试方法之间的潜在差异.
- 在健康成年人中建立5重复最大 (RM) ER强度的规范性数据.
主要方法:
- 三十八名健康参与者 (19名男性,19名女性) 接受了同位体 (倾斜和站立ER) 和同位体 (坐着5RMER) 强度测试.
- 使用变化系数 (CV) 和类内相关系数 (ICC) 评估了会议内部的可靠性.
- 使用线性混合模型和回归分析来检查性别,主导效应和测试之间的关联.
主要成果:
- 所有测试的肩部ER强度测量都显示出出色的可靠性 (CV: 1.93.1%;ICC: 0.9700.994).
- 男性的异比ER强度明显高于女性 (倾斜3.8%,站立2.7%).
- 倾向于异比强度是坐着5RM ER强度的显著预测因素,解释了52.4%的差异.
结论:
- 在健康的成年人中,同度和同位素肩部ER强度测试具有高度可靠性.
- 同度测量并不完全涵盖通过同位素测试评估的强度.
- 虽然男性在同度ER强度方面表现出色,但在5RM同度ER强度方面没有发现显著的性别差异.
相关概念视频
Isotonic and Isometric Muscle Contractions
6.8K
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...
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
6.8K
Kinematic Equations for Rotation
770
In mechanics, when one observes a rigid body in rotational motion with constant angular acceleration, it is possible to establish equations for its rotational kinematics. This process resembles how linear kinematics are dealt with in simpler motion studies.
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
770
Rotation of Asymmetric Top
1.5K
By definition, a spherically symmetric body has the same moment of inertia about any axis passing through its center of mass. This situation changes if there is no spherical symmetry. Since most rigid bodies are not spherically symmetric, these require special treatment.
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
1.5K
Rotational Motion about a Fixed Axis
1.3K
A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or...
1.3K
Rotation with Constant Angular Acceleration - I
8.1K
If angular acceleration is constant, then we can simplify equations of rotational kinematics, similar to the equations of linear kinematics. This simplified set of equations can be used to describe many applications in physics and engineering where the angular acceleration of a system is constant.
Using our intuition, we can begin to see how rotational quantities such as angular displacement, angular velocity, angular acceleration, and time are related to one another. For example, if a flywheel...
Using our intuition, we can begin to see how rotational quantities such as angular displacement, angular velocity, angular acceleration, and time are related to one another. For example, if a flywheel...
8.1K
Rotation with Constant Angular Acceleration - II
7.0K
Kinematics is the description of motion. The kinematics of rotational motion discusses the relationships between rotation angle, angular velocity, angular acceleration, and time. One can describe many things with great precision using kinematics, but kinematics does not consider causes. For example, a large angular acceleration describes a very rapid change in angular velocity without any consideration of its cause. Thus, rotational kinematics does not represent the laws of nature.
The first...
The first...
7.0K


