Volume 19, Issue 4 (2-2006)
Med J Islam Repub Iran 2006 |
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School of Rehabilitation, Tehran University of Medical Sciences and Health Services, Tehran, Iran , takamjan@tums.ac.ir
Abstract: (5302 Views)
Background: The purpose of this study was to investigate the ratio of Electromyography
(EM G) activities of the vastus medialis obliqus (VMO) and vastus lateralis
(VL) within seven angles of knee joint range of motion using isometric contraction in
open kinetic chain (OK C) and closed kinetic chain (CKC).
Methods: The dominant knees of 44 healthy female subjects (mean age: 24.84
with range: 20-30 years old) were analyzed. Surface electrode pairs were attached
over the VMO and VL by using Basmajian methods. The EMG biofeedback data was
collected while the subject performed isometric contraction on isometric and squat
exercise within 7 degrees (0° to 90°) with 15° intervals of knee flexion angle.
Results: Paired T-test andANOVA were performed between variables. Results
demonstrated that in this study there are significant differences: I) between OKC and
CKC exercise in 0°, 15°, and 30° ofknee flexion, II) between all angles in CKC
except: 0-15°,0-30°, 0-45°, 15-30°, 60-75°, and 75-90°, and III) between 15-60°,
30-60°, 45-60°, and 60-90° in OKC (p
Type of Study: Original Research: Clinical Science |
Subject:
Surgery
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