文章基本信息

标题：Short-Term Effects of Isotonic Handgrip Exercise on Cardiovascular Autonomic Reactivity in Healthy Young Adolescents
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作者：Nileshkumar H Patel ; Hasmukh D Shah ; Wasim A Shaikh 等
期刊名称：National Journal of Community Medicine
印刷版ISSN：0976-3325
电子版ISSN：2229-6816
出版年度：2015
卷号：6
期号：3
页码：390-393
出版社：National Journal of Community Medicine
摘要："Background: Exercise is a potent stimulus for sympathetic nervous system activation. But the compliance of people for routine form of exercise for BP control has not been very encouraging. Objective of the study was to determine the short-term effects of isotonic handgrip exercise on cardiovascular autonomic reactivity in healthy adolescents and to find a user friendly exercise which help in reducing blood pressure. Method and Materials: Present study was conducted on 50 young healthy adolescents in the age group of 17–19 years. Isotonic handgrip exercise was performed for 20 minutes at the rate 12 contractions per minute (2 sec contraction/3 sec relaxation) at an intensity of 30%MVC using Ball-Squeeze Dynamometer. Vascular sympathetic reactivity and cardiac parasympathetic reactivity were tested at baseline and during recovery period (Immediate- post-exercise and 1 hour–post-exercise). Result: There were no changes in the parameters (Expiration: Inspiration ratio and Valsalva Ratio) measuring parasympathetic reactivity. Sympathetic reactivity as evaluated by diastolic blood pressure responses to isometric handgrip test (HGT) and cold pressor test (CPT) showed no significant decreases. No significant difference was observed in cardiovascular autonomic reactivity during immediate and 1 hr post-exercise recovery in both boys and girls. Conclusion: It can be concluded that the exercise regime under consideration could not produce any short-term beneficial effects with respect to cardiovascular autonomic reactivity."
关键词：Isotonic Handgrip Exercise Regime; Cardiovascular Autonomic Reactivity; Normotensive; Adolescents