Department of Health Science, Kinesiology, Recreation, and Dance, University of Arkansas, Fayetteville, Arkansas, USA.
Clin J Sport Med. 2010 Nov;20(6):452-7. doi: 10.1097/JSM.0b013e3181f7b0ef.
The purpose of the current study was to quantitatively examine the muscle activations of 3 common isometric core exercises (abdominal bridge, single-leg abdominal bridge, and superman) along with a newly introduced isometric exercise (flying squirrel) and determine if muscle activations differed among the exercises.
The design was a comparison study.
An athletic training classroom laboratory was where all data collections occurred.
Thirty healthy collegiate graduate students (age, 23.4 ± 1.4 year; height, 171.3 ± 10.3 cm; mass, 73.3 ± 16.2 kg), regardless of sex, consented to participate.
The independent variable was the muscle selected.
The main outcome measures or dependent variables were the muscle activation reported as percent of maximum voluntary isometric contraction during each exercise.
Results revealed that the multifidi produced the greatest muscle activity in all exercises, and the single-leg abdominal bridge exercise produced greater muscle activation than the general abdominal bridge exercise (P < 0.025).
The findings of this study demonstrate that any of these exercises may be a part of a core stability program. In addition, these findings may be incorporated into an isometric core exercise program to supplement a currently implemented isometric core exercise program.
本研究的目的是定量研究 3 种常见的等长核心练习（桥接式腹部运动、单腿桥接式腹部运动和 Superman 运动）以及新引入的等长练习（飞鼠运动）的肌肉激活情况，并确定这些练习之间的肌肉激活是否存在差异。
该设计为比较研究。
在一个运动训练教室实验室进行了所有数据收集。
30 名健康的大学研究生（年龄 23.4 ± 1.4 岁；身高 171.3 ± 10.3cm；体重 73.3 ± 16.2kg），无论性别，均同意参与。
自变量为所选肌肉。
主要观察指标或因变量是在每项运动中报告的肌肉激活百分比，即最大随意等长收缩的百分比。
结果显示，多裂肌在所有运动中产生的肌肉活动最大，单腿桥接式腹部运动比一般桥接式腹部运动产生更大的肌肉激活（P < 0.025）。
本研究的结果表明，这些练习中的任何一种都可以成为核心稳定性计划的一部分。此外，这些发现可以被纳入等长核心练习计划中，以补充现有的等长核心练习计划。
