CHPS RESEARCH STUDIES

Dual-Task Balance after ACL Reconstruction

This research looks at whether people who’ve had an anterior cruciate ligament reconstruction (ACLR) have different balance and eye movements when making decisions. We want to compare how these persons perform versus someone who has never had an ACLR. We expect you will be in this research study for one in person visit (up to ~2 hours of active participation time).

You will be asked to fill out questionnaires during the session about activity level, perceived knee function, and hand/foot dominance. Then, your ability to balance on one leg while completing a cognitive task on screen will be tested, with eye movements tracked throughout.

Inclusion Qualifications:

ACL Group:

Age of 18-35 years
History of only one ACL reconstruction within the previous 2 years
Medical clearance for return to unrestricted activity

Uninjured Group:

Age of 18-35 years
No history of lower limb surgery
No history of significant lower limb injury within previous 6 months (defined as seeking medical attention, or missing >3 consecutive practices or games)

Exclusion Qualifications:

You may not participate in this research opportunity if any of the following applies to you:

Current infection of lower limb
History of medically diagnosed muscular abnormality
History of cardiopulmonary disorder
History of neurological disorder (e.g., stroke, epilepsy, neuropathy)
Physician advised not to participate in exercise
Are pregnant or planning to become pregnant during study participation
Known visual impairment without knowledge of prescription
History of medically diagnosed with a concussion in the previous 6 months
Have taken opioid medication in the previous 2 weeks

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