م هایی که در سوختوساز انرژی نقش دارند، مرتبط است. با افزایش سطوح استرادیول، فعالیت آنزیم لیپوپروتئین لیپاز کاهش مییابد (34)، که ممکن است در افزایش تریگلیسرید مصرفی در عضله اسکلتی در زمانهای مختلف چرخه قاعدگی اثر داشته باشد (20،11). درحالی که پروژسترون سوختوساز پروتئین را افزایش میدهد و به عنوان ضد استروژن عمل میکند (45،29،14،6). همچنین پروژسترون اثرهای بهینه استروژن را بر قابلیت استفاده و اکسیداسیون لیپید و سوختوساز کربوهیدرات مهار می کند (17) و تا حدودی در کاهش اعمال سوخت وسازی استرادیول مؤثر است (33). اثرهای ناشی از افزایش استروژن در مرحله میانی لوتئالی ممکن است در حضور پروژسترون کاهش یابد (29).
در مجموع نتایج این تحقیق نشان داد که کالری مصرفی و اکسیداسیون کربوهیدرات و چربی در مراحل خونروی، ابتدای فولیکولی و انتهای لوتئالی در حین فعالیت ورزشی احتمالا بهسبب عدم تفاوت زیاد بین غلظت هورمون های استروژن و پروژسترون در این مراحل در دختران جوان تفاوت چشمگیری ندارد، ولی اگر فعالیت در اواسط این مراحل انجام گیرد، به علت تفاوت هورمونهای استروژن و پروژسترون احتمالا اکسیداسیون چربی و کربوهیدرات متفاوت خواهد بود. البته برخی تحقیقات نشان داده اند که نوسان و تغییرات استروژن و پروژسترون در چرخه قاعدگی، بر اکسیداسیون چربی و کربوهیدرات طی تمرین تأثیری ندارد (19،17،5)، مگر زمانی که تولید و مصرف گلوکز در شروع فعالیت مدتی از حد طبیعی فراتر رود یا گلیکوژن از طریق ناشتای شبانه محدود شود (8،14،19).
براساس نتایج این تحقیق میتوان گفت که دختران جوان در این مراحل قاعدگی میتوانند فعالیت های ورزشی فزاینده تا واماندهساز را بدون نگرانی و افت اجرا انجام دهند. البته در این زمینه تفاوتهای فردی و موضوعات روانی هم باید در نظر گرفته شود.

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