The effects of attentional focus on jump performance and knee joint kinematics in patients after ACL reconstruction

Alli Gokeler*, Anne Benjaminse, Wouter Welling, Malou Alferink, Peter Eppinga, Bert Otten

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

66 Citations (Scopus)

Abstract

Objectives: The purpose of this study was to determine the effect of an internal and external attentional focus on single leg hop jump distance and knee kinematics in patients after ACL reconstruction (ACLR).

Design: Experimental.

Setting: Outpatient physical therapy facility.

Participants: Sixteen patients after ACLR.

Main Outcome Measures: Patients received either an instruction with an internal focus or an external focus before performing a single leg hop jump. The jump distance, knee valgus angle at initial contact, peak knee valgus angle, knee flexion angle at initial contact, peak knee flexion angle, total ROM and time to peak angles for the injured and non-injured legs were recorded. A repeated measures MANOVA was used to determine significance between the experimental conditions with the primary outcome measures as dependent variables.

Results: The external focus group had significant larger knee flexion angles at initial contact peak knee flexion, total ROM and time to peak knee flexion for the injured legs.

Conclusions: This study demonstrates the applicability of using an external focus during rehabilitation of patients after ACLR to enhance safer movement patterns compared to an internal focus of attention and subsequently may help to reduce second ACL injury risk. (C) 2014 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)114-120
Number of pages7
JournalPhysical Therapy in Sport
Volume16
Issue number2
DOIs
Publication statusPublished - May-2015

Keywords

  • Anterior cruciate ligament
  • Motor learning
  • Attentional focus
  • Kinematics
  • CRUCIATE LIGAMENT RECONSTRUCTION
  • STANDING LONG-JUMP
  • FEMALE TEAM HANDBALL
  • EXTERNAL FOCUS
  • INJURY RISK
  • BIOMECHANICAL MEASURES
  • FUNCTIONAL DEFICITS
  • PREINJURY LEVEL
  • ANKLE SPRAIN
  • RETURN

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