New Triple Hop Test Quality Assessment Tool

Examination of New Triple Hop Test Assessment Tool for Adults and Adolescents, Healthy and After Anterior Cruciate Ligament Injury

This study will develop a new jump assessment tool for the Triple Hop Test, and will test its reliability on adolescent and adult, healthy and post- anterior cruciate ligament (ACL) population. Creating a new assessment test for a jump test that incorporates the known movement components that are important after an ACL injury can improve patient evaluation, decision for return to sport activity and injury prevention.

Study population- Adults, women and men aged 20-45, boys and girls aged 12-15. uninjured population: non symptomatic subjects, without major injury in their history. Injured population: ACL injured subjects, 9-12 month after beginning of treatment/surgery. Stages of study: stage 1- The investigators will create a new high-quality literature-based assessment test for the triple hop test (NTHT). The test will have 10 sections, its score ranges from 0 to 14 points and a high score means poor performance. Stage 2- Performing reliability tests between and within the testers for NTHT. The tests will be done with the help of video photography of NTHT. Stage 3- Performing NTHT and THT tests on healthy adult and adolescent subjects and on ACL adult and adolescent subjects, assessing the NTHT by watching video performance.

Each participants will be asked to perform triple hop test on a straight line and to stand stable at the end of the jump. Two jumps will be performed on each leg, with 1 minute rest between them. The jumps will be recorded via video. Legs muscle strength will be assessed using hand held dynamometer

Each participants will be asked to perform triple hop test on a straight line and to stand stable at the end of the jump. Two jumps will be performed on each leg, with 1 minute rest between them. The jumps will be recorded via video. Legs muscle strength will be assessed using hand held dynamometer

Each participants will be asked to perform triple hop test on a straight line and to stand stable at the end of the jump. Two jumps will be performed on each leg, with 1 minute rest between them. The jumps will be recorded via video. Legs muscle strength will be assessed using hand held dynamometer

Each participants will be asked to perform triple hop test on a straight line and to stand stable at the end of the jump. Two jumps will be performed on each leg, with 1 minute rest between them. The jumps will be recorded via video.Legs muscle strength will be assessed using hand held dynamometer

New jumping assessment will be performed in all included study groups. This new assessment includes quality evaluation.

Inclusion Criteria uninjured population: non symptomatic subjects without major injury in their history. Inclusion Criteria injured population: ACL injured subjects 9-12 month after beginning of treatment/surgery. Exclusion Criteria uninjured population: acute pain knee instability symptoms history of lower leg injury unable to jump on one leg knee ligament injury. Exclusion Criteria Injured population: late in rehabilitation program unable to jump or run instability symptoms.

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Dekker TJ, Godin JA, Dale KM, Garrett WE, Taylor DC, Riboh JC. Return to Sport After Pediatric Anterior Cruciate Ligament Reconstruction and Its Effect on Subsequent Anterior Cruciate Ligament Injury. J Bone Joint Surg Am. 2017 Jun 7;99(11):897-904. doi: 10.2106/JBJS.16.00758.