تاثير 8 هفته مصرف دمنوش آويشن و تمرين شنا بر برخي فاكتورهاي عفوني در شناگران دختر 10-13 ساله شهر تهران

The effect of 8week Thymus vulgaris consumption and swimming training on some infectious parameters in some (10-13)year old teenager swimmer girls at Tehran

مينه و هدف: عفونت هاي ادراري بدون نشانه، به علت نقش مهمي كه مي­توانند در ايجاد نارسايي مزمن كليه خصوصا در نوجوانان داشته باشند مورد توجه مي­باشند. هدف از پژوهش حاضر بررسي اثر مصرف دمنوش آويشن و 8 هفته تمرين شنا بر برخي شاخص­هاي عفوني ادرار در دختران نوجوان شناگر10 – 13 ساله مي­باشد. روش­ها: به اين منظور 16 شناگر نوجوان دختر بعد از همگن سازي بر اساس ويژگي هاي عفوني به 2 گروه آزمايش (آويشن و تمرين ؛ 8=n)، وكنترل (دارونما و تمرين؛ 8=n) در برنامه تمريني شنا با شدت 60 -70% ضربان قلب هدف براي 3 جلسه در هفته وبه مدت 8 هفته شركت كردند. گروه آزمايش هر بار 2 گرم آويشن قبل و بعد تمرين دريافت نمودند. نمونه گيري از آب استخر و ادرار و سنجش تركيب بدني در پيش آزمون و در پايان هفته هشتم انجام شد. براي مقايسه ميانگين­هاي بين گروهي و درون گروهي به ترتيب از t مستقل و t وابسته وجهت داده هاي كيفي از يومان ويتني در سطح معني­داري(05/0>P ) استفاده گرديد. يافته ها: نتايج پژوهش نشان داد كه مصرف هشت هفته دمنوش آويشن، متغيرهاي گلبول سفيد(001/0=P)، نمود ظاهري ادرار(001/=0P)، اپيتليال سل(001/0=P) در پس آزمون به طور معني­داري در گروه آزمايش نسبت به كنترل كاهش داده است. ولي اختلاف معناداري در گلبول قرمز(334/0=P)، PH (118/=0P)، نيتريتp=1 و كشت ادرار (118/0=P)، بين گروه­ها مشاهده نشد. مي­رسد كه مكمل سازي با گياه آويشن و تمرين شنا از طريق سازوكارهاي متفاوت بر فاكتورهاي عفونت ادراري تغييرات مثبتي را نشان مي­دهد.

Background and purpose: For many years, thyme has been introduced as an antibacterial plant that can prevent bacterial growth. Therefore, this research intended to study effects of using thyme herbal tea together with an eight-week swimming exercise on some indicators of urinary infection in 10-13 year old adolescent female swimmers in Tehran. Materials and methods: Sixteen female swimmers were matched based on characteristics of infection and then divided into two groups of thyme+ swimming exercise (8 participants) and placebo + swimming exercise (8 participants). The girls took part in the swimming exercise program with the intensity level of 60-70% maximum heart rate in three weekly sessions for eight weeks. The experimental group received two grams of thyme before and two grams after each exercise session. Pool water and urine samples were taken and body composition assessment performed during the pretest and at the end of the eighth week. The independent t-test was used for statistical analysis and Yeoman Whitney test for qualitative data at the p<0.05 significance level. Results: Study of intergroup changes in the number of white blood cells, average scores for urine epithelial cells, and average scores for urine appearance in the experimental and control groups revealed significant differences. Therefore, scores for the average number of red blood cells in urine, for urine pH, and average scores for urine culture in the control and experimental groups were not significantly different after taking thyme. Urine nitrate content in 10-13 year old female swimmers in Tehran in the experimental and control groups prior to and following thyme consumption was negative and did not change at all. Discussion and conclusion: It seems thyme complement and swimming exercise caused positive changes in urinary infection factors through various mechanisms. This research showed taking thyme significantly reduced some factors related to urinary infections including reduced number of white blood cells in urine, which could probably result from the properties of the flavonoids in thyme, the stimulation of the immune system, and the effect of the active ingredients thymol and carvacrol on bacteria.