نوع مقاله : مقاله پژوهشی
نویسندگان
1 دکترای تخصصی، مرکز تحقیقات توانبخشی اسکلتی-عضلانی، گروه آموزشی فیزیوتراپی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران
2 کارشناسی ارشد، مرکز تحقیقات توانبخشی اسکلتی-عضلانی، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران
3 دکترای تخصصی، دپارتمان فیزیوتراپی، دانشکده ی علوم توانبخشی، دانشگاه علوم پزشکی شیراز، شیراز، ایران
4 دکترای تخصصی، مرکز تحقیقات علوم توانبخشی، دانشگاه علوم پزشکی شیراز، شیراز، ایران
5 دکترای تخصصی، مرکز تحقیقات توانبخشی، گروه آموزشی مدیریت توانبخشی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی ایران، تهران، ایران
چکیده
مقدمه: مشکل تعادل در سالمندان زمانی بیشتر نمایان می شود که فرد مجبور به انجام یک تکلیف مضاعف در حین حفظ تعادل باشد. این مطالعه با هدف تعیین و مقایسه نسبت هارمونیک راه رفتن بین سالمندان ایرانی با و بدون سابقه زمین خوردن، تحت شرایط تکلیف منفرد و دوگانه انجام شد.
روش ها: در این مطالعه ی مشاهده ای مقطعی،۲۰ سالمند با سابقه زمین خوردن (۱۳ زن و ۷ مرد) و ۲۰ سالمند بدون سابقه ی زمین خوردن (۱۲ زن و ۸ مرد) از میان اعضای یک مرکز بازنشستگی انتخاب و وارد مطالعه شدند. متغیر های مورد ارزیابی عبارت بودند از نسبت هارمونیک راه رفتن در شرایط تکلیف منفرد و دوگانه در جهات طرفی، عمودی و قدامی-خلفی که توسط یک شتاب سنج اندازه گیری شد.
یافته ها: در راه رفتن در شرایط تکلیف منفرد، تفاوت معناداری بین دو گروه در جهات طرفی، عمودی و قدامی-خلفی نسبت هارمونیک گزارش نشد. در راه رفتن با تکلیف دوگانه، نسبت هارمونیک در گروه با سابقه زمین خوردن در جهات طرفی (010/0 p =) و عمودی (32p =0/0) به طور معناداری کوچکتر از گروه بدون سابقه زمین خوردن بدست آمد، اما اختلاف بین دو گروه در جهت قدامی-خلفی نسبت هارمونیک از لحاظ آماری معنادار نبود.
نتیجه گیری: یافته های پژوهش اخیر نشان داد که راه رفتن در شرایط انجام تکالیف دوگانه می تواند به میزان قابل توجهی نسبت هارمونیک راه رفتن در جهات عمودی و طرفی را در سالمندان با سابقه زمین خوردن، تحت تاثیر قرار دهد.
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