Limb dominance influences energy absorption contribution (EAC) during landing after anterior cruciate ligament reconstruction

Jack Malafronte, Joseph Hannon, Shiho Goto, Steve B. Singleton, Lindsey Dietrich, J. Craig Garrison, Trevor Kovacs

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Objective: To determine the role of limb dominance on energy absorption contribution (EAC) during a jump landing (JL) task at return to sport (RTS) after ACL-R. Design: Cross-sectional study. Setting: Clinical Research Laboratory. Participants: One hundred eight participants (age = 16.19 ± 1.74, Height = 172.25 ± 9.96 cm, Weight = 72.61 ± 15.48 kg). Main outcome measures: Participants were grouped into two groups: those who injured their dominant limb ACL (D-ACL) and those who injured their non-dominant limb ACL (ND-ACL). A multiple analysis of variance (MANOVA) was used to assess for between group differences in EAC across the three joints. Results: In the surgical limb, D-ACL demonstrated smaller hip (D-ACL = 32.23 ± 10.44%, ND-ACL = 69.68 ± 8.51%, p < 0.008) and greater knee (D-ACL = 45.86 ± 10.36%, ND-ACL = 9.41 ± 5.68%, p < 0.008) EAC than ND-ACL. In the non-surgical limb, D-ACL demonstrated greater hip (D-ACL = 62.59 ± 9.03%, ND-ACL = 25.95 ± 7.15%, p < 0.008), and smaller knee (D-ACL = 13.79 ± 5.57%, ND-ACL = 58.01 ± 7.86%, p < 0.008), EAC than ND-ACL. Conclusion: After ACL-R, eccentric loading strategies during a JL task at RTS are different depending upon limb dominance. D-ACL demonstrated a greater knee loading strategy on the surgical side compared to ND-ACL.

Original languageEnglish (US)
Pages (from-to)42-49
Number of pages8
JournalPhysical Therapy in Sport
Volume50
DOIs
StatePublished - Jul 2021
Externally publishedYes

Keywords

  • ACL
  • Energy absorption contribution
  • Limb dominance
  • Return to sport

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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