Login Contact Us
E-ISSN : 2148-9696
Crescent Journal of
Medical and Biological Sciences
Oct 2021, Vol 8, Issue 4
Advanced Search
Title
Authors
Keyword
Poll
How do you find the scientific quality of the published articles on our web site?
Original Article
Changes of Knee Proprioception in Athletes With an Isolated Unilateral Complete Anterior Cruciate Ligament Rupture in a Six-Month Follow-up
Afshin Rahbari1, Abbas Rahimi2, Khosro Khademi Kalantari2, Alireza Akbarzadeh Baghban3
1Student Research Committee, Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

CJMB 2021; 8: 303-308

Viewed : 61 times
Downloaded : 65 times.

Keywords : Knee joint, ACL-deficient knee, Proprioception, Trends, Biomechanics
Full Text(PDF) | Related Articles
Abstract
Objectives: Diminished proprioception after an anterior cruciate ligament (ACL) rupture causes disabilities following injury. The aim of this study was to investigate the trend of this change during six months following an isolated unilateral complete ACL rupture.

Materials and Methods: In this cohort study, a total of 58 male and female athletes, aged 20-40 years, were surveyed in equal groups with 29 subjects. The healthy (first) and ACLD (second) groups included athletes with isolated unilateral complete ACL ruptures (the ACL-deficient knee group). Knee proprioception was investigated in both groups in three stages, namely, at the beginning of the study (two months after the injury in the ACL-D group) and the intervals of two and four months after the first assessment. The active reproduction of passive positioning (ARPP) method was used in this study. The selected angles were 45° and 60° of knee flexion, and an isokinetic device was the measuring instrument. Three reproduction angular errors were compared between three measurements in each test, including constant error (CE), absolute error (AE), and variable error (VE).

Results: The results showed that AE and VE, unlike CE, significantly changed within both groups. AE (P ≤ 0.002, P ≤ 0.001 for 45° and 60°, respectively) and VE (P ≤ 0.043 for 45°), as well as AE (P ≤ 0.002, P ≤ 0.001 for 45°and 60°, respectively) and VE (P ≤ 0.005, P ≤ 0.016 for 45° and 60°, respectively) were significant in the healthy and ACL-D groups, respectively. In addition, a significant difference was observed between healthy and ACL-D groups regarding knee proprioception. At 45°, CE, AE, and VE were significant in the first (P ≤ 0.024), the third (P ≤ 0.014), and all three (P ≤ 0.001, P ≤ 0.027, & P ≤ 0.001) tests, respectively. Finally, AE, VE, and CE were found to be significant in the second (P ≤ 0.001), second (P ≤ 0.004), and third (P ≤ 0.026) tests, at 60°, respectively.

Conclusions: In general, ACL rupture reduced knee proprioception after the injury in athletes compared to healthy individuals. Within-group differences, as well as differences between healthy and injured athletes diminished over time within six months after the injury. Eventually, knee proprioception improved in individuals with ACL rupture although the exact mechanism of these changes remains unknown.

 

Cite By, Google Scholar

Google Scholar

Articles by Rahbari A
Articles by Rahimi A

PubMed

Articles by Afshin Rahbari
Articles by Abbas Rahimi

Submit Paper
Online Submission System
CJMB ENDNOTE ® Style Tutorials Publication Charge Women's Reproductive Health Research Center About Journal
Publication Information
Publisher
Aras Part Medical International Press Editor-in-Chief
Arash Khaki
Deputy Editor
Zafer Akan
Published Article Statistics