"The Influence of Quadriceps Rate of Torque Development and Arthrogenic Muscle Inhibition on Knee Landing Mechanics during Different Landing Tasks in ACL Reconstructed Females"

Purpose

The purpose of this study is to determine:

1. if greater explosive quadriceps strength in females who have had an anterior cruciate ligament (ACL) reconstruction is associated with safer landing strategies; and
2. if a reduced ability to maximally voluntarily contract the quadriceps is related to lesser explosive strength.

Research involves

The research involves one testing session (2 hours and 40 minutes, Incentive: $ 30 USD).

To qualify

To qualify to participate in this study, participants need to:

• Be a female between the ages of 16-30
• Not be pregnant
• Regularly participate in at least 150 minutes per week of moderate to vigorous physical activity (i.e., at a heart rate of about  64 - 95% of your maximum)
• Be free of any current injuries or illnesses that limit your ability to perform your regular physical activity
• Have had no lower extremity or low back injuries in the previous 6 months that limited your regular physical activity
• Have no neurological and cardiopulmonary disorder
• Minor participants ( < 18 years of age) must reside with their legal guardian

Participant Categories

Study participants must also fit into one of the following two categories:

ACL reconstructed (ACLR) participant

To qualify to participate as an ACL reconstructed (ACLR) participant, you need to:

• Have had ACLR on just a single knee
• Have been cleared for unrestricted activities by the orthopedic surgeon who performed the ACLR within the past two years
• Have no history of low back, hip, knee, or ankle surgery except for ACLR and up to one subsequent minor operation for hardware removal, scar tissue clean out (debridement) and/or arthroscopic assessment following the primary ACLR
• Have been cleared for unrestricted activities by the orthopedic surgeon who performed the subsequent operation, if an additional subsequent operation following the primary ACLR has been performed
• Have not had a graft failure (e.g., ACL re-injury)
• Have not had multiple ACLR

Healthy participant

To qualify to participate as a healthy participant, you need to:

• Have no history of ACL injury
• Have no history of low back, hip, knee, or ankle surgery

Research team

Yu-Lun Huang, a PhD candidate in the Kinesiology program at OSU, is conducting this study under the direction of Marc Norcross, PhD, ATC (Principal Investigator).

Contact

If you are interested or have any questions, please contact the research team.

Contact: Yu-Lun Huang
Phone: (682) 552–1826
Email: [email protected]