Effects of a focused plyometric intervention on biomechanics after ACL reconstruction

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Pfeiffer, S. (2016). Effects of a focused plyometric intervention on biomechanics after ACL reconstruction. Unc Charlotte Electronic Theses And Dissertations.
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Abstract

PURPOSE: After an ACL reconstruction, patients demonstrate aberrant biomechanics when they return to sport. These aberrant biomechanics lead to joint degeneration, secondary injuries to the involved or uninvolved limb, and knee osteoarthritis. The purpose of this study was to determine whether or not a focused plyometric intervention had any effect on biomechanics in patients after an ACL reconstruction. METHODS: 4 subjects, 2 in the control group and 2 in the intervention group, completed our study. All four subjects completed a baseline and follow-up session. During these sessions, vertical ground reaction force and isokinetic strength were measured and the subjects completed multiple subjective self-reported surveys. The 2 subjects in the intervention group completed 12 plyometric sessions over 4 weeks, 3 times a week. RESULTS: The 2 intervention subjects showed changes in vertical ground reaction force and isokinetic strength in their hamstrings when compared to the intervention group. CONCLUSION: We concluded that our intervention shows trends towards improvements in biomechanics for patients post-ACL reconstruction. A major limitation of this study was the small sample size. With a larger sample size, our results may prove to have more significance.

Details
Author

Pfeiffer, Steven

Title

Effects of a focused plyometric intervention on biomechanics after ACL reconstruction

Physical Description

1 online resource (49 pages) : PDF

Date

2016

Degree Granting Institution

University of North Carolina at Charlotte

Abstract

PURPOSE: After an ACL reconstruction, patients demonstrate aberrant biomechanics when they return to sport. These aberrant biomechanics lead to joint degeneration, secondary injuries to the involved or uninvolved limb, and knee osteoarthritis. The purpose of this study was to determine whether or not a focused plyometric intervention had any effect on biomechanics in patients after an ACL reconstruction. METHODS: 4 subjects, 2 in the control group and 2 in the intervention group, completed our study. All four subjects completed a baseline and follow-up session. During these sessions, vertical ground reaction force and isokinetic strength were measured and the subjects completed multiple subjective self-reported surveys. The 2 subjects in the intervention group completed 12 plyometric sessions over 4 weeks, 3 times a week. RESULTS: The 2 intervention subjects showed changes in vertical ground reaction force and isokinetic strength in their hamstrings when compared to the intervention group. CONCLUSION: We concluded that our intervention shows trends towards improvements in biomechanics for patients post-ACL reconstruction. A major limitation of this study was the small sample size. With a larger sample size, our results may prove to have more significance.

Genre

masters theses

Subjects--Topics

Biomechanics
Kinesiology

Degree

M.S.

Keywords

ACL
Cruciate
Intervention
Plyometrics
Reconstruction

Subject Area

Kinesiology

Advisor(s)

Thomas, Abbey

Committee Members

Turner, Tricia
Turner, Michael

Degree Note

Thesis (M.S.)--University of North Carolina at Charlotte, 2016.

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Rights Holder Information

Copyright is held by the author unless otherwise indicated.

Identifier

Pfeiffer_uncc_0694N_11118

Permalink

http://hdl.handle.net/20.500.13093/etd:22