توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Muscular and Hormonal Responses to Whole Body Vibration Exercises in Elderly
نویسنده(ها): ،
اطلاعات انتشار: World Applied Sciences Journal، سي و دوم،شماره۹، ۲۰۱۴، سال
تعداد صفحات: ۵
Purpose this study was conducted to evaluate the muscular and hormonal responses in elderly males following a program of whole body vibration (WBV) exercise. Subjects Sixty male participants aged from 62 to 75 years were recruited from Hedaya Barakat residential care centre to participate in this study. They divided into two groups: WBV group (n=30) and the control group (n=30). ProcedureWBV exercise was performed at intensity of 12 –20 Hz for duration of 4 minutes, three times weekly, for a total treatment period of eight weeks. Hormonal measurements for testosterone (T) and growth hormone (GH), mechanical measurements for isokinetic plantar and dorsiflexion peak torque, isokinetic knee flexion and extension peak torque were performed. Student’s t test for independent samples was used for the statistical analysis, considering p 0.05 as the statistical significance level. Results hormonal measurements showed significant increase in the plasma concentration of T and GH. The mechanical measurements showed significantly improved isokinetic ankle and knee muscle strength. Conclusion exercise program with WBV in elderly men caused an increased plasma concentrations of T and GH, also improved isokinetic ankle and knee muscle strength. Therefore, WBV training can be a beneficial addition to traditional strength programs in elderly.

۲Postural Instability in Response to Chronic Hyperventilation in Asthmatic Children
نویسنده(ها): ، ،
اطلاعات انتشار: World Applied Sciences Journal، سي و چهارم،شماره۷، ۲۰۱۶، سال
تعداد صفحات: ۲
The purpose of this study was to identify the postural stability deficits in response to chronichyperventilation in asthmatic children. Thirty children were included, their age ranged from 8 to 12 years. Fifteen asthmatic children were referred from the out patient''s clinic of the Abo–Elreesh teaching hospital. Fifteen healthy children volunteers were participated to represent the control group; they were matched in age, weight and height to the asthmatic group. Biodex stability system was used to assess dynamic stability level«in the form of overall (SI), anteroposterior (AP) and mediolateral (ML) stability indices» in both groups during standing on both feet with eyes open, then with closed eyes. Results showed that independent t–tests of asthmatic children had significant stability deficits in comparison with healthy children. All children had better stability during opened–eye condition than closed–eye conditions. It had been concluded that asthmatic children have significantly lower stability control than healthy children and that visual feedback improved stability control in asthmatic and healthy children.
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