大侧肌肉的结构,质量和性是运动员最大表现的决定因素?
Fábio Juner Lanferdini1, Heinrich Leon Souza Viera1, Lucas Gidiel-Machado1
1Biomechanics Laboratory, Physical Education and Sports Center, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
Journal of biomechanics
|January 5, 2025
概括
肌肉结构和横向巨大的质量显著预测运动员的最大扭矩和跳跃性能. 这些内在的肌肉特征是体育运动中运动功率输出的关键决定因素.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 肌肉生理学 肌肉生理学
背景情况:
- 了解固有的肌肉适应对于阐明它们对体育表现的影响至关重要.
- 横向巨大的肌肉在膝盖延伸和整体运动力产生方面发挥着重要作用.
研究的目的:
- 调查Vastus lateralis肌肉结构,质量和刚度是否可以预测膝盖延伸器最大扭矩和运动员垂直跳跃性能.
- 为了确定与运动功率输出相关的特定肌肉参数.
主要方法:
- 评估了102名运动员在休息状态下肌肉结构 (例如,回声强度,厚度,笔纹角),质量和横向巨大的硬度.
- 测量了最大的自发同度收缩,最大的同心收缩在60°/s,以及反运动和跳的表现.
主要成果:
- 横向大脑回声强度和肌肉厚度是最大自愿同度收缩 (r2 = 0.435) 和60°/s最大集中收缩 (r2 = 0.400) 的显著预测因素.
- 肌肉回声的强度,厚度和角决定了反运动 (r2 = 0.4390.578) 和跳 (r2 = 0.4590.570) 的表现.
- 肌肉结构和质量解释了最大膝盖延伸器扭矩的40-44%,跳跃性能的44-58%的差异.
结论:
- 内在的大侧肌肌的结构和质量是最大膝盖延伸器扭矩和垂直跳跃性能的重要决定因素.
- 这些发现强调了评估肌肉特征的重要性,以了解和潜在地提高各种体育学科的运动功率输出.
相关概念视频
Bones of the Lower Limb: Femur and Patella
2.2K
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
2.2K
Muscles that Move the Leg
1.3K
The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
1.3K
Exercise and Muscle Performance
1.3K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
1.3K
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
249
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.
249
Indeterminate Structure
500
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium. Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...
500
Muscles of the Leg that Move the Foot and Toes
1.2K
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
1.2K


