پاسخ شاخص‌های ساختاری و عملکردی قلب کودکان به دوازده هفته فعالیت ورزشی هوازی

نوع مقاله : علمی - پژوهشی

نویسندگان

1 گروه آسیب شناسی و حرکات اصلاحی، دانشکده تربیت بدنی و علوم ورزشی، دانشگاه علامه طباطبائی، تهران، ایران

2 دانشکده تربیت بدنی و علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران

چکیده

هدف:تأثیرات مطلوب ورزش بر سلامت قلب و عروق کودکان به‌دلیل داشتن فیزیولوژی متفاوت نسبت به سایر رده‌های سنی به‌خوبی روشن نشده است. ازاین‌رو هدف از مطالعۀ حاضر پاسخ شاخص‌های ساختاری و عملکردی قلب کودکان به 12 هفته تمرینات هوازی شدت متوسط بود.
روش‌ها:20 کودک سالم (بدون سابقة تمرینی منظم) با میانگین سنی 10 تا 12 سال به‌صورت تصادفی در دو گروه کنترل (10=n) و ورزش (10=n) داوطلب شرکت در پژوهش شدند. گروه ورزش تمرین هوازی را با شدت 55 تا 70 درصد ضربان قلب ذخیره به مدت 12 هفته، هر هفته 3 جلسه و هر جلسه 25 تا 35 دقیقه انجام دادند. شاخص‌های ساختاری و عملکردی قلب با استفاده از دستگاه اکوکاردیوگرافی در شرایط پایه و پایان 12 هفته تمرین ورزشی اندازه‌گیری شد.  داده‌ها با استفاده از آزمون‌های آماری تی زوجی و تی مستقل تجزیه‌وتحلیل شد (05/0>p).
نتایج: قطر پایان دیاستولی بطن چپ، تودۀ بطن چپ، حجم پایان دیاستولی بطن چپ و اوج اکسیژن پس از 12 هفته تمرین هوازی در گروه ورزش در مقایسه با شرایط پایه و گروه کنترل به‌طور معناداری افزایش یافت (05/0>P) و ضربان قلب استراحت کاهش معناداری را نشان داد (05/0>p).
نتیجه‌گیری:نتایج نشان داد که متعاقب 12 هفته تمرین هوازی شدت متوسط برخی شاخص‌های ساختاری و عملکردی قلب کودکان بهبود می‌یابد، به‌گونه‌ای که این تغییرات می‌تواند نقش مؤثری در تقویت دستگاه قلبی عروقی کودکان داشته باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The Response of Pediatrics’ Cardiac Structure and Function Parameters to 12 Weeks Aerobic Exercise

نویسندگان [English]

  • Bakhtyar Tartibian 1
  • Sirwan Mohammad Amini khayat 2
1 Department of Sports Injuries and Corrective Exercise, Faculty of Physical Education and Sport Sciences, Allameh Tabataba’i University, Tehran, Iran
2 MSc.of Exercise Physiology, Departement of Exercise Physiology, Urmia University, Urmia, Iran
چکیده [English]

Purpose: Desirable effects of exercise on cardiovascular health in pediatrics due to different physiology than other ages, has not been well elucidated. The aim of this study was to effect of 12 weeks of moderate-intensity aerobic exercise on cardiac structural and functional parameters in pediatrics.
Methods: Twenty healthy pediatrics (without regular training background) with average age of 10-12 years participated in this study. Subjects were randomized to one of two groups: control (n=10) and exercise (n=10). The subjects in the exercise group performed aerobic exercise training up to 55 -70% of heart rate reserve, three sessions per week, 25 to min per session for 12 weeks. The cardiac structural and functional parameters were measured with Echocardiography system at baseline and end of 12 week exercise training. The research data were analyzed using independent t- test and Paired t- test (p < 0.05).
Results: In the exercise group in comparison to the control group and baseline conditions LVEDd, LVmass, LVEDV and VO2peak significantly increased (p < 0.05) and resting heart rate decreased (p < 0.05) after 12 weeks moderate intensity aerobic exercise.
Conclusion: The results of present study demonstrates that after 12 weeks moderate intensity aerobic exercise some of cardiac structural and functional parameters in pediatrics will improve, As these changes can have an effective role in improvement of Pediatrics cardiovascular system.

کلیدواژه‌ها [English]

  • Exercise activity‌
  • Ventricular changes
  • Morphological adaptations
  • Heart rate
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  • تاریخ دریافت: 19 آذر 1396
  • تاریخ بازنگری: 30 اردیبهشت 1399
  • تاریخ پذیرش: 30 اردیبهشت 1396
  • تاریخ اولین انتشار: 01 اسفند 1399
  • تاریخ انتشار: 01 اسفند 1399