title: Comparison of the postural control between football players following ACL reconstruction and healthy subjects.
abstract: BACKGROUND
  Rupture of the Anterior Cruciate Ligment (ACL) is a common knee injury. The purpose of this study was to determine the balance control in football players with and without ACL reconstruction in posture of injury.
  
  
  METHODS
  Sway of the center of gravity of 15 patients with ACL reconstruction was compared with 15 healthy, age and sex-matched subjects as the control group. All tests were done unilaterally in the posture of injury, using a kistler force plate with the open and -closed eye conditions.
  
  
  RESULTS
  The knee of the operated side of the case group showed more displacement of the center of gravity when compared to the non-operated side in the same subject for all variables of the force plate. The operated side of the case group showed more displacement of the center of gravity for all variables of the force plate in comparison with the dominant side of knees in control group. There were significant differences between the non-operated side in the case group and the dominant side of the control group.
  
  
  CONCLUSIONS
  All together, postural control in the operated side of the case group was weaker than the nonoperated side of the same group and the dominant limb of the control group, which might have resulted from poor proprioception. The postural control was even weaker in the non-operated side of the case group as compared with the dominant limb of the control group, which can justify the hypo mobility of limb for several months after the surgery.
authors: 1. MSc, Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran. gholamreza_pahnabi@yahoo.com .
authors: Gholamreza
authors: G
authors: Pahnabi
authors: 2. PhD, Professor, Department of Physical Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran. akbari.mo@Iums.ac.ir .
authors: Mohammad
authors: M
authors: Akbari
authors: 3. PhD, Professor, Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran. nakhostin@tums.ac.ir .
authors: Noureddin Nakhostin
authors: NN
authors: Ansari
authors: 4. MD, Orthopedic Surgeon, Laleh hospital, Tehran, Iran. mahmoud_mardani@yahoo.com.
authors: Mahmoud
authors: M
authors: Mardani
authors: 5. MSc Student, Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran. mehdi_ahmadi@yahoo.com.
authors: Mehdi
authors: M
authors: Ahmadi
authors: 6. BCS of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran. dr_cinohe67@yahoo.com .
authors: Mohamad
authors: M
authors: Rostami
keywords: Anterior cruciate ligament; Postural control; Reconstruction