fa اثر خستگی بر مقادیر مکانیکی ایمپالس و مرکز فشار در افراد چاق با پای پرونیت طی راه رفتن و دویدن تخصصي Special پژوهشي Research <span style="font-size:11pt"><span style="line-height:normal"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">مقدمه: </span></span></b><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">چاقی یک مشکل عمده سلامتی در سراسر جهان است. به نظر می‌رسد خستگی می‌تواند منجر به تغییر معنادار مؤلفه‌های مکانیکی در افراد چاق در مقایسه با افراد سالم گردد؛ بنابراین، هدف از این مطالعه تعیین اثر خستگی بر مقادیر مکانیکی ایمپالس و مقادیر مرکز فشار در افراد چاق با پای پرونیت طی راه&shy;رفتن و دویدن بود.</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">روش کار: </span></span></b><span lang="AR-SA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">این تحقیق از نوع نیمه‌تجربی بود. نمونه آماری پژوهش حاضر شامل 31 نفر از دانشجویان استان اردبیل بود. که در 2 گروه 16 نفر سالم و 15 نفر گروه چاق با پای پرونیت تفسیم بندی شدند</span></span><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:"><span style="position:relative"><span style="top:.5pt"> در طول آزمون مقادیر مکانیکی در هر دو گروه قبل و بعد از اجرای پروتکل خستگی توسط دستگاه صفحه نیروسنج (نرخ نمونه برداری&nbsp; 1000هرتز) طی راه&shy;رفتن و دویدن با پای برهنه ثبت شد. </span></span></span></span><span lang="AR-SA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">تجزیه تحلیل آماری با استفاده از آزمون تحلیل واریانس دوسویه با اندازه&shy;های تکراری انجام شد. &nbsp;</span></span><span lang="FA" style="font-size:13.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">یافته&shy;ها: </span></span></b><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">اثر عامل گروه بر مقادیر مکانیکی ایمپالس در راستای محور عمودی (007/0> </span></span><span dir="LTR" lang="EN-US" style="font-size:13.0pt">P</span><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">)، ایمپالس در راستای قدامی - خلفی، (003/0> </span></span><span dir="LTR" lang="EN-US" style="font-size:13.0pt">P</span><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">) و مقادیر مرکز فشار در راستای&nbsp; داخلی - خارجی از لحاظ آماری تفاوت معناداری</span></span> <span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">در دو گروه نشان داد</span></span> <span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">&nbsp;(029/0> </span></span><span dir="LTR" lang="EN-US" style="font-size:13.0pt">P</span><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">).</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><span lang="FA" style="font-size:13.0pt"><span b="" nazanin="" style="font-family:">&nbsp;<b>نتیجه‌گیری: </b>تغییر معناداری در مؤلفه‌های مکانیکی&nbsp; ایمپالس در راستای محور عمودی، ایمپالس در راستای قدامی - خلفی و مرکز فشار در راستای&nbsp; داخلی - خارجی در افراد چاق با پای پرونیت طی راه&shy;رفتن و دویدن به وجود می&shy;آید. </span></span></span></span></span></span></span> <span style="font-size:11pt"><span style="background:white"><span style="text-justify:kashida"><span style="text-kashida:10%"><span style="line-height:normal"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span style="border:none windowtext 1.0pt; font-size:12.0pt; padding:0cm"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Introduction:</span></span></span></b><b> </b><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Obesity is a </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">global</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> health </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">concern that</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> can lead to significant changes in mechanical components in individuals compared to healthy </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">counterparts. This study </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">aimed </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">to</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> investigate the </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">effect</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> of fatigue on </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">the </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">mechanical components of impulse and center of pressure in individuals with obesity and pronated feet during walking and running</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">.</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"></span></span></span></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="background:white"><span style="text-justify:kashida"><span style="text-kashida:10%"><span style="line-height:normal"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span style="border:none windowtext 1.0pt; font-size:12.0pt; padding:0cm"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Methods</span></span></span></b><b><span style="border:none windowtext 1.0pt; font-size:12.0pt; padding:0cm"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">:</span></span></span></b><b> </b><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">This was a semi-experimental study </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">involving</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> 31 students from Ardabil </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Province,</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> divided into </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">two</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> groups</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">:</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> 16 healthy individuals and 15 individuals with </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">obesity and </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">pronated feet. </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Mechanical</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> values were recorded before and after </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">a</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> fatigue protocol </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">using</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> a force plate device (sampling rate 1000 Hz) during </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">barefoot </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">walking and running. Statistical analysis was </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">conducted</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> using a two-way analysis of variance with repeated measures. The study was approved by the Ethics Committee of the University of Mohaghegh Ardabili (IR.UMA.REC.1403.062).</span></span></span></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="background:white"><span style="text-justify:kashida"><span style="text-kashida:10%"><span style="line-height:normal"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span style="border:none windowtext 1.0pt; font-size:12.0pt; padding:0cm"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Results:</span></span></span></b><b> </b><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">The effect of group </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">membership </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">on the mechanical values of impulse along the vertical axis (P</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> < </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">0.007), impulse along the anterior-posterior direction (P</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> < </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">0.003</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">),</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> and the center of pressure along the medial-lateral direction showed statistically significant </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">differences between</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> the two groups (P</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> < </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">0.029).</span></span></span></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="background:white"><span style="text-justify:kashida"><span style="text-kashida:10%"><span style="line-height:normal"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span style="border:none windowtext 1.0pt; font-size:12.0pt; padding:0cm"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">Conclusion:</span></span></span></b><b> </b><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">There </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">are</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> significant </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">changes</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414"> in the mechanical components of impulse along the vertical axis, impulse along the anterior-posterior direction</span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">,</span></span></span> <span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">and the center of pressure along the medial-lateral direction in individuals with </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">obesity and </span></span></span><span style="font-size:12.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:#131414">pronated feet during walking and running.</span></span></span></span></span></span></span></span></span></span> چاقی؛ خستگی؛ دویدن, راه‌رفتن Obesity, Pronated Feet, Mechanical Components, Fatigue, Gait Analysis 369 380 http://aums.abzums.ac.ir/browse.php?a_code=A-10-1676-1&slc_lang=fa&sid=1 Ehsan Fakhri Mirzanag احسان فخری میرزانق ehsanfakhri6454@gmail.com 100319475328460014144 100319475328460014144 No Department of Sport Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran گروه بیومکانیک ورزشی دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران AmirAli Jafarnezhadgero امیرعلی جعفرنژادگرو Amiralijafarnezhad@gmail.com 100319475328460014145 100319475328460014145 Yes Department of Sport Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran گروه بیومکانیک ورزشی دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران Farhad Rezazadeh فرهاد رضازاده rezazade.farhad@gmail.com 100319475328460014146 100319475328460014146 No University of Mohaghegh Ardabil گروه بیومکانیک ورزشی دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران Mahrokh Dehghani ماهرخ دهقانی mahrokh.dehghani@yahoo.com 100319475328460014147 100319475328460014147 No Department of Sport Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran گروه بیومکانیک ورزشی دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران Afsaneh Enteshari-Moghadam افسانه انتشاری مقدم afsanehenteshary@gmail.com 100319475328460014148 100319475328460014148 No Department of Internal, Faculty of Medicine Sciences, Ardabil University of Medicine Sciences, Ardabil, Iran گروه داخلی، دانشکده علوم پزشکی، دانشگاه علوم پزشکی اردبیل، اردبیل، ایران