Document Type : Research Paper
Authors
1
Assistant professor of Sports Biomechanics, Department of Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Birjand, Birjand, Iran
2
MSc. in Sport Biomechanics, Department of Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Birjand, Birjand, Iran.
3
Associated professor of Sports Biomechanics, Department of Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Birjand, Birjand, Iran.
10.22084/rsr.2024.29721.1748
Abstract
Background and Aim: Knee osteoarthritis is one of the common disorders in elderly women. Knee osteoarthritis affects the kinematic and neuromuscular aspects of walking. However, there is no consensus regarding the best exercise method to improve walking-related symptoms in patients with osteoarthritis. This study aimed to compare the effect of six weeks of therapeutic exercise in water and on dry land on knee kinematics and the electrical activity of selected muscles during walking in elderly women with knee osteoarthritis.
Methods: In this semi-experimental study with a pre-test and post-test design, 36 elderly people with osteoarthritis with related criteria were randomly divided into three groups: control group, exercise in water, and land. Kinematic variables were measured using a digital camera with a frequency of 240 Hz and electromyography data were measured using a Bio vision system at a frequency of 1000 Hz. Study subjects participated in eight weeks of training on land and in water. The peak of the knee angle at the beginning of the establishment, the electrical activity of one strain, and the indices related to the contraction were calculated in the data processing stage. A one-way analysis of variance was used to compare the effects of the exercises in the pre-and post-tests.
Results: The study showed no significant difference between the training groups in the knee angle peak and co-contraction-related indices (P>0.05). However, the quadriceps muscle activity increased after water training compared to the control group and training on land. Found significance (P<0.05).
Conclusion: The results of this study showed that light exercise in water with an emphasis on walking is a suitable option for the elderly with knee osteoarthritis to strengthen muscles, improve walking, and prevent the progression of symptoms of people with arthritis such as inhibition and atrophy of the quadriceps muscle.
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