تاثیر دوازده هفته تمرین مقاومتی دایره‌ای در سه شدت متفاوت هم حجم بر برخی عوامل همودینامیک مردان چاق

محورهای موضوعی : فصلنامه زیست شناسی جانوری

صابر نیازی ¹ (گروه فیزیولوژی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، داشنگاه خوارزمی، تهران، ایران)
حمید رجبی ² (گروه فیزیولوژی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، داشنگاه خوارزمی، تهران، ایران)
صادق امانی شلمزاری ³ (گروه فیزیولوژی ورزشی، دانشکده تربیت بدنی و علوم ورزشی، داشنگاه خوارزمی، تهران، ایران)

تاریخ دریافت : 1399/08/25 تاریخ پذیرش : 1399/09/15 تاریخ انتشار : 1400/09/01

کلید واژه: چاقی, شدت تمرین, تمرین مقاومتی دایره ای, تمرین هم حجم, همودینامیک, عملکرد قلب,

چکیده مقاله :

چاقی یکی از دلایل بروز بیماری های قلبی عروقی است و فعالیت ورزشی می تواند در تعدیل این خطر نقش داشته باشد لذا هدف از تحقیق حاضر بررسی تاثیر 12 هفته تمرین مقاومتی دایره ای در سه شدت متفاوت هم حجم بر برخی عوامل همودینامیک مردان چاق بود. برای این منظور 44 مرد چاق 23 تا 33 سال (30 BMI ≥ ، 5/0 WHtR >) در چهار گروه کنترل، تمرین مقاومتی دایره ای با شدت کم (Rm1 40%) ، متوسط (Rm1 60%) و بالا (Rm1 80%) (11= تعداد در هر گروه) با حجم برابر انجام دادند. پیش و پس از 12 هفته تمرین ضربان قلب استراحتی، فشار خون سیستولیک و دیاستولیک استراحتی و میزان محصول فشار اندازه گیری شد. جهت بررسی تغییرات درون گروهی از t تست وابسته و مقایسه گرو ه ها، از آنالیز واریانس دو طرفه و آزمون تعقیبی بانفرونی استفاده شد (05/0≥p ). تغییرات درون گروهی نشان داد ضربان قلب استراحتی، فشار خون سیستولی تنها در گروه با شدت بالا، ، فشار خون دیاستولی تنها در گروه با شدت متوسط و میزان محصول فشار در تمام گروه های تمرینی، بعداز دوره نسبت به قبل کاهش معنی داری داشت (05/0≥ p). آزمون تحلیل واریانس نشان داد بین تغییر ضربان قلب استراحتی، فشار خون سیستولی، فشار خون دیاستولی و میزان محصول فشار در گروه با شدت بالا نسبت به سایر گروه ها اختلاف معنی داری وجود دارد (05/0≥p ). یافته ها نشان می دهد احتمالاً دوازده هفته تمرین مقاومتی دایره ای اثر مثبتی بر کاهش فشار خون و بهبود شاخص های مرتبط با عملکرد قلب دارد. احتمالا تمرین با شدت بالا اثر بیشری بر کاهش ضربان قلب استراحتی، فشار خون سیستولی و دیاستولی و میزان محصول فشار داشته باشد.

چکیده انگلیسی:

Obesity is one of the causes of cardiovascular disease and exercise can play a role in modulating this risk. Therefore, this study was aimed at investigating the effect of 12 weeks of circuit resistance training with three different intensities of equal volume on some hemodynamic factors on obese men. Forty four obese men aged 23 to 33 years (BMI≥30, (WHtR)> 0.5) in four control groups: low-intensity circuit resistance training (40% Rm1), medium (60% Rm1) and high (Rm1) 80% (11 = number in each group) with equal volume. Before and after 12 weeks of resting heart rate training, resting systolic and diastolic blood pressure and pressure product rate were measured. Two-way analysis of variance (ANOVA) and Bonferroni post hoc test were used to examine the intragroup changes using t-test and comparison of groups (P≤0.05). It seems that 12 weeks of circuit resistance training has a positive effect on lowering blood pressure and pressure product rate besides improving indicators related to heart function. High-intensity exercise is likely to have a greater effect on resting heart rate, systolic and diastolic blood pressure, and double heart rate.

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