相关实验视频

Updated: Jul 27, 2025

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol

Published on: June 8, 2017

4周的平衡训练对单腿跳不同阶段的活动模式的影响,重点是跳跃高度

Somayeh Ahmadabadi¹, Hamid Rjabi², Reza Gharakhanlou³

¹Department of Physical Education and Sports Sciences, Farhangian University, Tehran, Iran. s.ahmadabadi@cfu.ac.ir.

Scientific reports

|June 6, 2023

概括

一个为期4周的平衡训练计划改善了活跃女孩的肌肉激活模式,在跳跃着陆时增强了腿部关节的稳定性. 这种训练可以通过在准备阶段优化肌肉招募来帮助预防体育伤害.

科学领域:

运动医学运动医学
生物力学生物力学
运动生理学运动生理学

背景情况:

与男性相比,运动型女性在跳跃着陆时出现前十字带 (ACL) 损伤的风险更高.
压力计训练是一种潜在的干预措施,通过修改肌肉激活模式来减轻膝盖受伤风险.

研究的目的:

为了研究一个为期4周的压力计训练计划对肌肉活动模式的影响,在一个腿下降跳跃在活跃的女孩.
分析电肌图 (EMG) 和跨越不同跳跃阶段的跳跃性能变量.

主要方法:

二十名活跃的女孩被随机分配到一个平度训练组 (PTG,n=10) 或对照组 (CG,n=10).
在四周的时间里,PTG每周两次进行60分钟的密度计试.
表面电肌图 (sEMG) 在准备,接触和飞行阶段记录了Rectus Femoris (RF),双腿骨 (BF),中部胃角肌 (GaM) 和前肌 (TA) 肌肉的一腿跳.

主要成果:

压力计训练组在TA,GaM和BF肌肉中显示出显著较早的激活.
在两组之间观察到前部 (TA) 肌肉活动时间的显著差异 (p=0.038).
在准备阶段,大腿直肠 (RF) 的时间到峰值 (TTP) 显著不同 (p=0.049).

结论:

在活跃的女孩中,为期4周的平度训练计划可以增强下肢肌肉活动模式,并改善腿部关节的稳定性.
较早的肌肉招募,特别是在跳跃的准备阶段,可能有助于伤害预防策略.
跳跃的准备阶段是干预体育伤害预防计划的关键时期.

更多相关视频

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Published on: April 4, 2025

A Training Program Using an Agility Ladder for Community-Dwelling Older Adults

A Training Program Using an Agility Ladder for Community-Dwelling Older Adults

Published on: March 7, 2020

相关概念视频

Muscle Stimulation Frequency

Muscle Stimulation Frequency

The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...

Exercise and Muscle Performance

Exercise and Muscle Performance

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...