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Clin J Sport Med. 2010 Nov;20(6):452-7. doi: 10.1097/JSM.0b013e3181f7b0ef.

Electromyographic examination of selected muscle activation during isometric core exercises.

Author information

1
Department of Health Science, Kinesiology, Recreation, and Dance, University of Arkansas, Fayetteville, Arkansas, USA.

Abstract

OBJECTIVE:

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.

DESIGN:

The design was a comparison study.

SETTING:

An athletic training classroom laboratory was where all data collections occurred.

PARTICIPANTS:

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.

INDEPENDENT VARIABLE:

The independent variable was the muscle selected.

MAIN OUTCOME MEASURES:

The main outcome measures or dependent variables were the muscle activation reported as percent of maximum voluntary isometric contraction during each exercise.

RESULTS:

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).

CONCLUSIONS:

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.

PMID:
21079441
DOI:
10.1097/JSM.0b013e3181f7b0ef
[Indexed for MEDLINE]

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