تأثیر یک برنامه تمرینات اصلاحی بر قدرت، دامنه حرکتی و عملکرد بسکتبالیست های دارای والگوس پویای زانو

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه تربیت بدنی و علوم ورزشی، دانشکده علوم انسانی و اجتماعی، دانشگاه کردستان، سنندج، ایران

2 استاد، گروه حرکات اصلاحی و آسیب‌شناسی ورزشی، دانشکده تربیت بدنی، دانشگاه گیلان، رشت، ایران

3 استاد، گروه حرکات اصلاحی و آسیب شناسی ورزشی، دانشکده تربیت بدنی، دانشگاه تهران، تهران، ایران

چکیده

مقدمه و اهداف
سازوکار آسیب لیگامان صلیبی قدامی در بسکتبال اغلب به صورت غیربرخوردی بوده و عامل خطرساز کلیدی آن والگوس پویای زانو است. پژوهش حاضر با هدف بررسی تأثیر یک برنامه تمرین اصلاحی بر قدرت، دامنه حرکتی و عملکرد بسکتبالیست­های دارای والگوس پویای زانو انجام شد.
مواد و روش­ ها
در پژوهش حاضر 32 بسکتبالیست با میانگین سنی 7/1±8/20 سال، قد 05/0±83/1 متر، وزن 2/5±0/74 کیلوگرم و دارای والگوس پویای زانو، به عنوان آزمودنی شرکت نمودند که به صورت تصادفی در دو گروه (تمرین 16، کنترل 16 نفر) قرار گرفتند. ارزیابی­ها شامل دامنه حرکتی (دورسی فلکشن، آبداکشن، چرخش خارجی ران)، قدرت ایزومتریک (دورسی فلکشن، پلانتار فلکشن، ابداکشن و چرخش خارجی ران) و عملکرد (آزمون­های لی و تعادل) در پای برتر بود.
یافته­ ها
نتایج آنالیز کوواریانس نشان داد که اعمال برنامه تمرین اصلاحی موجب کاهش معنادار (01/0P<) والگوس پویای زانو در لحظه حداکثر فلکشن (51/6 درجه)، بهبود معنادار (01/0P<) دامنه حرکتی (دورسی فلکشن زانو خم 43/3 درجه، دورسی فلکشن زانو صاف 25/2 درجه، آبداکشن 38/2 درجه و چرخش خارجی ران 75/1 درجه)، قدرت (دورسی فلکشن 32/2 کیلوگرم، پلانتارفلکشن 87/4 کیلوگرم، ابداکشن 82/1 کیلوگرم و چرخش خارجی ران 58/1 کیلوگرم)، تعادل (33/3 سانتی­متر) و عملکرد لی (25/13 سانتی متر) می­گردد.
نتیجه­ گیری
نتایج پژوهش حاضر نشان داد که ارائه این تمرین اصلاحی نه تنها می­تواند باعث بهبود معنادار قدرت و دامنه حرکتی مفاصل دیستال و پروگزیمال زانو و عملکرد شود، بلکه به نظر می­رسد بتواند به پیشگیری از آسیب­های ناشی از والگوس پویای زانو طی فعالیت­های عملکردی در اندام تحتانی نیز کمک نماید.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of Corrective Exercises Program on Strength، ROM, and Performance in Basketball Players with Dynamic Knee Valgus

نویسندگان [English]

  • Hemn Mohammadi 1
  • Hassan Daneshmandi 2
  • Mohammadhosein Alizadeh 3
1 Assistant Professor, Department of Physical Education and Sports Sciences, Faculty of Humanity Sciences, University of Kurdistan, Sanandaj, Iran
2 Professor, Department of Sport Injury and Corrective Exercise, Faculty of Physical Education and Sports Sciences, University of Guilan, Rasht, Iran
3 Professor, Department of Sport Injury and Corrective Exercise, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran
چکیده [English]

Background and Aims: The most common mechanism of anterior cruciate ligament injury in basketball is non-contact and dynamic knee valgus is the key risk factor of these injuries. The purpose of the present study was to investigate the effect of corrective exercise program on strength, ROM, and performance in basketball players with dynamic knee valgus.
Materials and Methods: A total of 32 basketball players (age: 20.8± 1.7 years, weight :74.0± 5.2 kg, height: 183.9± 5.0 cm) with dynamic knee valgus participated in the current study and were randomly divided into two groups of exercise (n=16) and control (n=16). Assessment included ROM (dorsiflexion, abduction, and external rotation of the hip), strength (dorsiflexion, plantar flexion, abduction, and external rotation of the hip), and performance (balance and hop test) in dominant leg.
Results: Data analysis via ANCOVA showed that the exercise groups experienced significant reduction (P<0/01) in dynamic knee valgus (6/51 degree) during drop-jump task, significant improvement (P<0/01) in ROM (3/43 degree dorsiflexion with the knee flexion, 2/25 degree dorsiflexion with the knee extension, 2/38 degree abduction, and 1/75 degree external rotation of the hip), strength (2/32 kg dorsiflexion, 4/87 kg plantarflexion, 1/82 kg abduction and 1/58 kg external rotation of the hip), balance (3/33 cm), and hop tests (13/25 cm).
Conclusion:It can be concluded that participation in this corrective exercises program can lead to significant improvement in  strength and ROM distal and proximal knee joint and performance, and it seems that it can help for prevention of lower extremity injuries caused by dynamic knee valgus during functional activity.

کلیدواژه‌ها [English]

  • Corrective Exercises؛ Knee Valgus؛ Basketball Player؛ ROM
  • Performance

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دوماهنامه علمی - پژوهشی طب توانبخشی
دوره 8، شماره 3
مهر 1398
صفحه 29-41

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سابقه مقاله

  • تاریخ دریافت: 22 تیر 1397
  • تاریخ بازنگری: 20 دی 1397
  • تاریخ پذیرش: 02 بهمن 1397
  • تاریخ اولین انتشار: 01 مهر 1398

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