Volume 11, Issue 1 (4-2016)                   Salmand: Iranian Journal of Ageing 2016, 11(1): 202-209 | Back to browse issues page

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Mirmoezzi M, Amini M, Khaledan A, Khorshidi D. Effect of 8-Week of Selected Aerobic Exercise on Static and Dynamic Balance in Healthy Elderly Inactive Men. Salmand: Iranian Journal of Ageing. 2016; 11 (1) :202-209
URL: http://salmandj.uswr.ac.ir/article-1-886-en.html
1- Department of Biomechanics, Faculty of Physical Education and Sport Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran. , massoudmirmoezi@live.com
2- Department of Physical Education and Sport Sciences, Faculty of Humanites and Social Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran.
3- Department of Physiology, Faculty of Physical Education and Sport Sciences, Karaj Branch, Islamic Azad University, Karaj, Iran.
4- Department of Physiology, Faculty of Physical Education and Sport Sciences, Saveh Branch, Islamic Azad University, Saveh, Iran.
Abstract:   (9660 Views)

Objectives: Old age refers to years near or passed the middle age and therefore, near to the end of life cycle. Old-aged people have limited reviving capability and are more at risk of catching diseases, syndromes, and ailments. Falling is one of the most common problems in the elderly that occur due to their inability to maintain balance. This study aimed to examine the effect of aerobic exercises on static and dynamic balance in healthy elderly inactive men.
Methods & Materials: This quasi-experimental research was done in older people living in a nursing home in Qazvin, Iran. The study population included 200 elderly men (65-75 years old); of them, 26 healthy, inactive men were randomly selected and assigned to the experimental (13 subjects) and control (13 subjects) groups. The experimental group participated in selected exercise programs for 8 weeks. We used personal information questionnaire to check the inclusion criteria that comprised independency in doing daily chores, lack of problems in vision or fall during the last year, and not having joints dislocation, chronic arthritis or vertigo. In the case of having these problems, the subjects were excluded from the study. Stork balance test and Timed Up and Go test were used to measure the static and dynamic balance of subjects before the initiation and after the termination of the program. The statistical analyses were done by paired and independent t-tests.
Results: The results of independent t-test did not indicate any significant differences between 2 groups with regard to age, height, and weight (P>0.05). Homogeneity was observed in the 2 groups with respect to individual features affecting balance and walking. After performing the aerobic exercise program, the dynamic balance in the experimental group increased significantly (P<0.001). In the dynamic balance test, the lower mean time supported the better execution of the test, and significant changes were observed in the experimental group. The comparison of the two groups indicated the positive effect of aerobic exercise on the dynamic balance of healthy older people; however, no significant change was seen in static balance (P=0.36). Since we used Stork test for determining static balance, the higher mean time supported the positive effect but with no significant change in the static balance of experimental group after 8 weeks. We found that different factors like lower extremity muscles such as soleus, gastrocnemius, and hamstring have some roles in keeping static balance, and as the exercise protocol was related to aerobic exercise (walking and jogging), it did not reinforce these muscles.
Conclusion: Our results showed that regular aerobic exercise improves dynamic balance in elderly men. We also found that jogging and walking improved dynamic balance. The improvement in balance may be due to the increase in nervous compatibility (due to exercise); increase in fitness, strength, and motion domain; improvement in aerobic status, response time and mental status; improvement in neuromuscular control, including a decrease in changing movement units; and improvement in simultaneous movement units. Furthermore, there is a positive relationship between body composition and movement with balance. Therefore, regular aerobic activities are recommended as a suitable training method for improving balance.

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Type of Study: Research | Subject: gerontology
Received: 2015/10/20 | Accepted: 2016/02/04 | Published: 2016/04/01

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