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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02148172
Other study ID # UM IRB 282-13
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date January 2014
Est. completion date December 2018

Study information

Verified date April 2019
Source University of Montana
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

While surgical anterior cruciate ligament reconstruction (ACLR) of the knee restores passive stability, studies are showing consistently poor long-term outcomes. Unusually high risks of early-onset osteoarthritis and re-injury, and low rate of return to sport following ACLR all seem to be related to a chronic tendency to land stiff-legged from a jump or hop, which itself may be due to fear of re-injury. Decreased knee bending for force absorption simultaneously decreases performance level and increases risk for injury and arthritic changes.

The purpose of the proposed study is to compare a current best-practice plyometric training program to one utilizing body weight support to increase repetition and improve performance in the initial phases. The investigators hypothesize that we will see larger improvements in absorptive capacity of the knee and better confidence in activity immediately following body weight support training, as well as improved retention of training effects after a two-month period.


Recruitment information / eligibility

Status Completed
Enrollment 47
Est. completion date December 2018
Est. primary completion date December 2018
Accepts healthy volunteers No
Gender All
Age group 12 Years to 35 Years
Eligibility Inclusion Criteria:

- speak and understand English

- age between 12-35 years

- unilateral anterior cruciate ligament reconstruction between 6-48 months prior

- activity level greater than or equal to level 5 on the Tegner Activity Scale

Exclusion Criteria:

- Weight in excess of 300 pounds (136 kg)

- contralateral/bilateral ACL reconstruction or an unreconstructed ACL injury

- history of a posterior cruciate ligament injury

- lower extremity of back injury or other condition (e.g. cerebral palsy) that has limited their normal activities of daily living within the last 6 months

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Standard Plyometric Training
Participants will undergo individualized practice exercises of jumping, hopping, and cutting tasks consistent with standard published exercises.
Plyometric Training with BWS
Participants will undergo individualized practice exercises of jumping, hopping, and cutting tasks consistent with standard published exercises while their body weight is supported via adjustable harness.

Locations

Country Name City State
United States University of Montana, Movement Science Laboratory Missoula Montana

Sponsors (3)

Lead Sponsor Collaborator
University of Montana American Physical Therapy Association, Foundation for Physical Therapy, Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in sagittal plane knee kinetics and kinematics Baseline and after 8 weeks of training
Primary Change in psychological readiness for sports activities via survey scores baseline and after 8 weeks of training
Primary Change in motor patterning via electromyography of quadriceps and hamstring muscles Baseline and after 8 weeks of training
Secondary Retention of Biomechanical Adaptions in Knee kinetics and kinematics Change from end of 8 weeks of training to 2 month follow-up
Secondary Retention of adaptations in Psychological Readiness for Sport via survey Change from end of 8 weeks of training to 2 month follow-up
Secondary Retention of adaptations in motor patterning via electromyography Change from end of 8 weeks of training to 2 month follow-up
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