مطالعات طب ورزشی

مقایسه سفتی اندام تحتانی و تغییرپذیری آن بین شیوه های مختلف اجرای آزمون هاپینگ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکترای بیومکانیک ورزشی دانشگاه خوارزمی تهران

2 عضو هیئت علمی دانشگاه علم و صنعت ایران،گروه تربیت بدنی و علوم ورزشی، تهران، ایران

چکیده
پژوهش حاضر با هدف مقایسۀ سفتی اندام تحتانی و تغییرپذیری آن بین سه شیوۀ مختلف اجرای آزمون هاپینگ انجام شد.30 دانشجوی پسر فعال و سالم، هاپینگ عمودی به سه شیوۀ دوطرفه، یک‌طرفه روی پای برتر و یک‌طرفه روی پای غیر برتر را با استراتژی کنترلی (فرکانس ۲/۲ هرتز) برای تعیین متغیرهای سفتی اندام تحتانی اجرا کردند. مقایسه بین شیوه‌های اجرای مختلف از طریق آزمون آنووا با اندازه‌گیری مکرر یک‌راهه انجام شد. یافته های پژوهش حاکی از این بود که میزان سفتی اندام تحتانی بستگی به شیوۀ اجرای آزمون هاپینگ دارد. همچنین نتایج پژوهش کمتر بودن تغییرپذیری سفتی یک‌طرفه نسبت به دوطرفه را نشان داد که می‌تواند بیانگرساده تر بودن الگوی حرکتی هاپینگ یک‌طرفه نسبت به دوطرفه باشد. بنابراین به نظر می‌رسد بهتر است به‌جای آزمون هاپینگ دوطرفه، از آزمون هاپینگ یک‌طرفه به‌عنوان آزمون استاندارد برای تعیین سفتی اندام تحتانی در افراد سالم استفاده شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله English

Comparison of the lower extremity stiffness and its variability between different forms of hopping test

نویسندگان English

  • mohamadamin mohamadian 1
  • omid mohammadian 2
1 phd student of sport biomechanics, kharazmi university
2 Member of Iran University of Science & Technology, Department of physical education and sport sciences, Tehran, Iran
چکیده English

The aim of this study was to compare the lower extremity stiffness and its variability between three different forms of hopping test. 30 young healthy and physically active students performed three different forms of hopping, bilateral, unilateral, on dominant leg and unilateral on non-dominant leg with a control strategy (frequency 2.2 Hz) to determine the lower extremity stiffness variables. Different forms of hopping were compared by one way ANOVA repeated measure test. The research findings indicated that lower extremity stiffness depends on the form of hopping test. The results also showed less variability of unilateral stiffness than bilateral stiffness, which may be indicate that unilateral hopping has simpler motion pattern. Therefore, it seems better to use unilateral hopping test as a standard test to determine lower extremity stiffness in healthy subjects rather than bilateral hopping test.

کلیدواژه‌ها English

  • Lower extremity stiffness
  • Variability
  • Hopping

  1.  

    1. Butler RJ, Crowell HP, Davis IMC. Lower extremity stiffness: Implications for performance and injury. Clin Biomech. 2003;18(6):511-7.
    2. Hobara H, Tominaga S, Umezawa S, Iwashita K, Okino A, Saito T, et al. Leg stiffness and sprint ability in amputee sprinters. J Prosthet Orthot Int. 2012;36(3):312‐7.
    3. Chelly SM, Denis C. Leg power and hopping stiffness: relationship with sprint running performance. Med and Sci in Sports and Exerc. 2001;33(2):326‐33.
    4. Pruyn EC, Watsford M, Murphy A. The relationship between lower‐body stiffness and dynamic performance. Appl Physiol Nutr Me. 2014;39(10):1144‐50.
    5. Brughelli M, Cronin J. A review of research on the mechanical stiffness in running and jumping: methodology and implications. Scand J Med Sci Spor. 2008;18(4):417-26.
    6. Ashrostaghi M, Sadeghi H, Shirzad A. The relationship of mechanical stiffness during hopping test with performance and injury risk factors of lower extremity in selected fundamental movement skills [Unpublished doctoral dissertation]: [Tehran]. Kharazmi University; 2015. (In Persian).
    7. Lamontagne M, Kennedy MJ. The biomechanics of vertical hopping: A review. Res Sports Med. 2013;21(4):380‐94.
    8. Watsford ML, Murphy AJ, McLachlan KA, Bryant AL, Cameron ML, Crossley KM, et al. A prospective study of the relationship between lower body stiffness and hamstring injury in professional Australian rules footballers. American J Sports Med. 2010;38(10):2058-64.
    9. Maquirriain J. Leg stiffness changes in athletes with Achilles tendinopathy. Inter J Sports Med. 2012;33(07):567-71.
    10. Niu W, Wang Y, He Y, Fan Y, Zhao Q. Kinematics, kinetics, and electromyogram of ankle during drop landing: A comparison between dominant and non-dominant limb. Hum Movement Sci. 2011; 30:614–623.
    11. Sadeghi H, Allard P, Prince F, Labelle H. Symmetry and limb dominance in able-bodied gait: A review. Gait Post. 2000; 12:34–45.
    12. Brauner T, Sterzing T, Wulf M, Horstmann T. Leg stiffness: Comparison between unilateral and bilateral hopping tasks. Hum Movement Sci. 2014; 33:263-72.
    13. Maloney SJ, Fletcher IM, Richards J. A comparison of methods to determine bilateral asymmetries in vertical leg stiffness. Journal of Sports Sciences. 2016;34(9):829-35.
    14. Ashrostaghi M, Sadeghi H, Shirzad A. The analysis of spring-like behavior of human body during unilateral and bilateral hopping tests with different strategies. Res Sports Rehab. 2017;4(8):21-9. (In Persian).
    15. Farley C, Morgenroth, D. Leg stiffness primarily depends on ankle stiffness during human hopping. J Biomech. 1999;32(3):267-73.
    16. Winter DA. Biomechanics and motor control of human movement. 4th ed. Hoboken, New Jersey, USA: John Wiley & Sons; 2009. p. 86.
    17. McMahon TA, Cheng GC. The mechanics of running:How does stiffness couple with speed? J Biomech. 1990;23:65-78.
    18. Granata K, Padua D, Wilson S. Gender differences in active musculoskeletal stiffness. Part II. Quantification of leg stiffness during functional hopping tasks. J Electromyogr  Kinesiol. 2002;12(2):127-35.
    19. Nikooyan AA, Zadpoor AA. Mass-spring-damper modelling of the human body to study running and hopping: An overview. Proceed Instit Mechanic Eng. Part H. 2011;225(12):1121–35.
    20. Jones PA, Bampouras TM. A comparison of isokinetic and functional methods of assessing bilateral strength imbalance. Strength Cond J. 2010;24(6):1553–58.
    21. Rejc E, Lazzer S, Antonutto G, Isola M, Di Prampero PE. Bilateral deficit and EMG activity during explosive lower limb contractions against different overloads. Eur J Appl Physiol. 2010;108(1):157-65.
    22. Moir G. Strength and conditioning: a biomechanical approach. Burlington, Massachusetts: Jones & Bartlett Learning; 2016.
    23. Moritz CT, Farley CT. Human hopping on damped surfaces: Strategies for adjusting leg mechanics.  Proceedings of the Royal Society of London, Series B: Biologic Sci. 2003;270:1741–46.
    24. Ashrostaghi M, Shirzad E, Arshi AR. The relationship between leg stiffness and the stretch-shortening cycle efficiency during vertical jump in female athletes. Sports Med Stud J. 2015;7(18):79-90.
مطالعات طب ورزشی
دوره 11، شماره 25 - شماره پیاپی 25
اردیبهشت 1398
صفحه 177-188

  • تاریخ دریافت 27 اسفند 1397
  • تاریخ بازنگری 08 دی 1398
  • تاریخ پذیرش 18 دی 1398

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