在不同的跑步机模型上运行时,比较下肢肌肉活动
Christina Kaltenbach1, Albert Gollhofer1, Benno M Nigg2
1Department of Sport and Sports Science, University of Freiburg, Freiburg, Germany.
Frontiers in human neuroscience
|April 19, 2024
概括
跑步期间的肌肉活动在跑步机和地面之间有所不同. 在地面上跑步通常显示出更高的肌肉激活,特别是在姿势阶段,对于关键的腿部肌肉,如胃半径中枢和大腿直肠.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 人类的机动运动
背景情况:
- 跑步机运行是一种常见的炼和研究工具.
- 之前的研究集中在动力学和动力学上,对肌肉活动的关注较少.
- 了解肌肉激活差异对于准确的研究和训练至关重要.
研究的目的:
- 为了研究地面跑步和在各种跑步机上跑步之间的肌肉活动差异.
- 为了比较不同的跑步机类型和速度的肌肉激活模式.
主要方法:
- 11名健康人以3种速度 (2.6,3.6,4.5米/秒) 在地面上和3种不同的跑步机上跑步.
- 表面电肌图 (EMG) 测量了前肌 (TA),中胃肌 (GM),大腿直肠 (RF) 和大腿两侧肌 (BF) 肌肉中的活动.
- 综合EMG在立场,摇摆和前冲击阶段进行分析.
主要成果:
- 对于GM和RF的肌肉激活在跑步机上较低,而不是在所有速度的立场阶段在地面上.
- 在更快的速度下,TA活动更高,而BF活动在立场时在跑步机上较低.
- 在2.6米/秒的跑步机上,TA显示出较低的前运动,而在更快的速度下,RF显示出更高的运动.
结论:
- 跑步机和地面跑步之间肌肉活动存在显著差异,特别是在立姿阶段.
- 跑步机的机械特性会影响肌肉的激活,影响着立场和前冲击阶段.
- 在立场阶段,地面跑步通常会引起GM,BF和RF的较大肌肉活动.
相关概念视频
01:20Muscles that Move the Thigh
The thigh's motion is primarily governed by muscles originating in the pelvic girdle and inserted into the femur. One crucial muscle, the iliopsoas, is a combination of the psoas major and the iliacus muscles, sharing a common insertion point on the lesser trochanter of the femur.
Three other significant muscles are the gluteus maximus, gluteus medius, and gluteus minimus. The gluteus maximus originates from the posterior surface of the ilium, sacrum, and coccyx, and the thoracolumbar fascia...
Three other significant muscles are the gluteus maximus, gluteus medius, and gluteus minimus. The gluteus maximus originates from the posterior surface of the ilium, sacrum, and coccyx, and the thoracolumbar fascia...
01:23Muscles that Move the Leg
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 to...
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 to...
01:28Muscles of the Leg that Move the Foot and Toes
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.