Do bilateral power deficits influence direction-specific movement patterns?

Jay R. Hoffman, Nicholas A. Ratamess, Marc Klatt, Avery D. Faigenbaum, Jie Kang

Research output: Contribution to journalArticlepeer-review

85 Scopus citations


This study examined the effect of bilateral power differences on direction-specific movement patterns in American collegiate football players. Sixty-two college football players performed unilateral vertical jump testing prior to agility testing (3-cone drill). Three trials were performed on the subjects' dominant and nondominant sides. A significant difference (9.7 ± 6.9%) in unilateral jump power was observed between dominant and nondominant legs. No difference (p > 0.05) was seen, however, in agility performance between dominant (8.02 ± 0.51 s) and nondominant (7.97 ± 0.51 s) sides. Unilateral power in the nondominant leg had a low-to-moderate, correlation-to-agility sprint times performed on the subject's dominant (r = -0.36, p < 0.05) and nondominant (r = -0.37, p < 0.05) sides. Although power performance in the nondominant leg appears to correlate to agility performance, bilateral power deficits do not appear to relate to performance differences during direction-specific agility tests.

Original languageEnglish
Pages (from-to)125-132
Number of pages8
JournalResearch in Sports Medicine
Issue number2
StatePublished - Apr 2007
Externally publishedYes


  • Agility
  • Athletics
  • Football
  • Performance


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