Journal of Police Medicine
نشریه علمی پژوهشی طب انتظامی
J Police Med
Medical Sciences
http://jpmed.ir
1
admin
2228-6241
2383-3483
10.30505
en
jalali
1404
2
1
gregorian
2025
5
1
14
1
online
1
fulltext
fa
اثر یک دوره تمرین تعادلی روی سطوح ناپایدار بر کنترل وضعیتی پویا و عملکرد تیراندازی در دانشجویان دانشگاه علوم انتظامی امین
The Effect of a Training Period on Unstable Surfaces on Dynamic Postural Control and Shooting Performance in Students of Amin Police University
آسیب‌های مرتبط با فعاليت انتظامی
Police Related Trauma
پژوهشی اصيل
Original Research
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">مقدمه</span></span></b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">: کنترل وضعیتی پویا نقش اساسی در اجرای مهارت‌های حرکتی دقیق مانند تیراندازی ایفا می‌کند. این مطالعه با هدف بررسی تأثیر یک دوره تمرین روی سطوح ناپایدار بر کنترل وضعیتی پویا و عملکرد تیراندازی در دانشجویان دانشگاه علوم انتظامی امین انجام شد.</span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">روش‌شناسی</span></span></b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">: پژوهش حاضر از نوع نیمه‌تجربی با طرح پیش‌آزمون-پس‌آزمون با گروه کنترل بود. ۶4 دانشجوی پلیس (۳2 نفر گروه آزمایش، ۳2 نفر گروه کنترل) به روش نمونه‌گیری هدفمند انتخاب شدند. گروه آزمایش به مدت ۴ هفته (۳ جلسه در هفته) تمرینات تعادلی روی سطوح ناپایدار را انجام دادند. </span></span><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">کنترل وضعیتی پویا با استفاده از صفحه نیرو (شامل جابجایی کلی</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115"> COP</span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">، </span></span></span><strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red"><span style="font-weight:normal">سرعت میانگین جابجایی</span></span></span></span></strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">، نوسانات قدامی-خلفی و نوسانات داخلی-خارجی) و عملکرد تیراندازی با سیستم</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115"> SCATT (</span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">شامل دقت، ثبات، پایداری نشانه‌روی و </span></span></span><strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red"><span style="font-weight:normal">زمان نشانه‌گیری</span></span></span></span></strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">)</span></span></span> <span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">اندازه‌گیری شد.</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">. داده‌ها با استفاده از آزمون‌های تی مستقل، تحلیل کوواریانس و تحلیل واریانس با اندازه‌گیری مکرر تحلیل شدند.</span></span><span dir="LTR" style="font-size:14.0pt"><span style="font-family:"IRANSharp_PrintingSize",sans-serif"></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">یافته‌ها</span></span></b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">: نتایج نشان داد که تمرین روی سطوح ناپایدار به طور معنی‌داری باعث کاهش جابجایی کلی </span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">COP </span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">(۰۰۱/۰ > </span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">P</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">،، ۴۱/۰</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">= </span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:">η</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">²</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">)، </span></span><strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red"><span style="font-weight:normal">سرعت میانگین جابجایی (</span></span></span></span></strong><b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">۰۰</span></span></span></b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">۱/۰ > </span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">P</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">، 31/۰</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">=</span></span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:"><span style="color:red">η</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">²</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">)</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"> و</span></span> <span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">نوسانات قدامی-خلفی (۰۰۱/۰ > </span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">P</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">، ۴۵/۰</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">=</span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:">η</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">²</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">)</span></span> <span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">و افزایش پایداری نشانه‌روی (۰۰۱/۰ > </span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">P</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">، ۴۰/۰</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">=</span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:">η</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">²</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">)</span></span> <span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">و دقت تیراندازی (۰۰۱/۰ > </span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">P</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">، ۳۵/۰</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">=</span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:">η</span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">²</span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">)</span></span><strong> </strong><strong><span lang="AR-SA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red"><span style="font-weight:normal">و کاهش زمان نشانه‌گیری (</span></span></span></span></strong><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">۰۰۱/۰ > </span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">P</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">، ۳7/۰</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">=</span></span></span> <span dir="LTR" style="font-size:14.0pt"><span calibri="" style="font-family:"><span style="color:red">η</span></span></span><span dir="LTR" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">²</span></span></span><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:"><span style="color:red">)</span></span></span><strong> </strong><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">در گروه آزمایش شد. اندازه اثر در همه متغیرها در سطح بالا بود.</span></span><span dir="LTR" style="font-size:14.0pt"><span style="font-family:"IRANSharp_PrintingSize",sans-serif"></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">نتیجه‌گیری</span></span></b><span lang="FA" style="font-size:14.0pt"><span iransharp_printingsize="" style="font-family:">: </span></span><span lang="AR-SA" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">تمرین روی سطوح ناپایدار به عنوان یک مداخله مؤثر، می‌تواند کنترل وضعیتی پویا (</span></span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:red">شامل کاهش جابجایی، سرعت جابجایی و نوسانات) </span></span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">و عملکرد تیراندازی (</span></span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:red">شامل افزایش دقت، پایداری نشانه‌روی و کاهش زمان نشانه‌گیری) </span></span></span></span><span lang="AR-SA" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">را در دانشجویان پلیس بهبود بخشد. گنجاندن این تمرینات در برنامه‌های آمادگی جسمانی و آموزش تیراندازی نیروهای پلیس توصیه می‌شود</span></span></span></span><span dir="LTR" style="font-size:14.0pt"><span style="background:white"><span iransharp_printingsize="" style="font-family:"><span style="color:#0f1115">.</span></span></span></span><span dir="LTR" style="font-size:14.0pt"><span style="font-family:"IRANSharp_PrintingSize",sans-serif"></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span dir="LTR" style="font-size:14.0pt"><span style="font-family:"IRANSharp_PrintingSize",sans-serif"></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span dir="LTR" style="font-size:14.0pt"><span style="font-family:"IRANSharp_PrintingSize",sans-serif"></span></span></span></span></span></span><br>
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<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><strong><span dir="LTR" style="font-size:14.0pt"><span style="background:white"><span style="color:#0f1115"></span></span></span></strong></span></span></span></span><br>
<span style="font-size:12pt"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:11.0pt"><span cambria="" style="font-family:">Introduction</span></span></b><span style="font-size:11.0pt"><span cambria="" style="font-family:">: Dynamic postural control plays a fundamental role in the execution of precise motor skills such as shooting. This study aimed to investigate the effect of a training period on unstable surfaces on dynamic postural control and shooting performance in students of Amin Police University.</span></span></span></span><br>
<span style="font-size:12pt"><span style="background:white"><span new="" roman="" style="font-family:" times=""><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">Methods:</span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115"> This quasi-experimental study employed a pretest-posttest design with a control group. Sixty-eight police students (34 experimental, 34 control) were selected through purposive sampling. The experimental group performed balance training on unstable surfaces for 4 weeks (3 sessions per week). Dynamic postural control was assessed using a force plate (including total COP displacement, </span></span></span><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red"><span style="font-weight:normal">mean velocity of displacement</span></span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">, anteroposterior sway, and mediolateral sway), and shooting performance was evaluated using the SCATT system (including accuracy, precision, aiming stability, and </span></span></span><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red"><span style="font-weight:normal">aiming time</span></span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">). Data were analyzed using independent t-tests, ANCOVA, and repeated measures ANOVA.</span></span></span><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115"></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="background:white"><span style="font-variant-ligatures:normal"><span style="text-decoration-thickness:initial"><span style="text-decoration-style:initial"><span style="text-decoration-color:initial"><span new="" roman="" style="font-family:" times=""><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">Results:</span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115"> The results showed that training on unstable surfaces significantly reduced total COP displacement (P < 0.001, η² = 0.41), </span></span></span><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red"><span style="font-weight:normal">mean velocity of displacement (P < 0.001, η² = 0.31)</span></span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115"> and anteroposterior sway (P < 0.001, η² = 0.45), while increasing aiming stability (P < 0.001, η² = 0.40), shooting accuracy (P < 0.001, η² = 0.35) </span></span></span><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red"><span style="font-weight:normal">and decreasing aiming time (P < 0.001, η² = 0.37)</span></span></span></span></strong><b> </b><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">in the experimental group. Effect sizes were large for all variables.</span></span></span></span></span></span></span></span></span></span><br>
<span style="font-size:12pt"><span style="background:white"><span style="font-variant-ligatures:normal"><span style="text-decoration-thickness:initial"><span style="text-decoration-style:initial"><span style="text-decoration-color:initial"><span new="" roman="" style="font-family:" times=""><strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">Conclusion:</span></span></span></strong><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115"> Training on unstable surfaces, as an effective intervention, can improve dynamic postural control (</span></span></span><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red">including reduced displacement, velocity, and sway</span></span></span><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">) and shooting performance (</span></span></span><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:red">including increased accuracy, aiming stability, and decreased aiming time</span></span></span><span style="font-size:11.0pt"><span cambria="" style="font-family:"><span style="color:#0f1115">) in police students. Incorporating these exercises into physical fitness and marksmanship training programs for police forces is recommended</span></span></span><span style="font-size:11.0pt"><span inter="" style="font-family:"><span style="color:#0f1115">.</span></span></span></span></span></span></span></span></span></span><br>
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<span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><span dir="LTR" style="font-size:11.0pt"><span style="font-family:"Cambria",serif"></span></span></span></span></span></span><br>
کنترل وضعیتی پویا، عملکرد تیراندازی، سطوح ناپایدار، تعادل، دانشجویان پلیس
Dynamic Postural Control, Shooting Performance, Unstable Surfaces, Balance, Police Students
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http://jpmed.ir/browse.php?a_code=A-10-536-8&slc_lang=fa&sid=1
Hamdollah
Hadi
حمداله
هادی
amir.hadi1@gmail.com