Can common measures of core stability distinguish performance in a shoulder pressing task under stable and unstable conditions?

Justin W. L. Keogh*, Sam E. Aickin, Anthony R. H. Oldham

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

Keogh, JWL, Aickin, SE, and Oldham, ARH, Can common measures of core stability distinguish performance in a shoulder pressing task under stable and unstable conditions? J Strength Cond Res 24(2): 422-429, 2010-The primary purpose of this study was to determine whether a range of static core stability (CS) measures could distinguish shoulder press performance in unstable vs. stable conditions. Thirty resistance-trained men gave informed consent to participate in this study. One-repetition maximum strength (from <6 repetitions) was predicted in the seated shoulder dumbbell press performed in unstable (Swiss ball[SB]) and stable (back-support bench) environments. Three CS muscle endurance tests were performed, with 4 CS ratios also calculated. The degree of strength decrement, referred to as the instability strength level (ISL), was calculated by dividing the predicted 1RM Unstable score by the 1RM Stable score. All subjects were categorized as high (ISL > 0.90), moderate (0.85

Original languageEnglish
Pages (from-to)422-429
Number of pages8
JournalJournal of Strength and Conditioning Research
Volume24
Issue number2
DOIs
Publication statusPublished - Feb 2010
Externally publishedYes

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