پژوهش در طب ورزشی و فناوری

مقایسه عملکرد تعادلی ایستادر بین نوجوانان با ساختار متفاوت پا

نویسندگان

مهرداد عنبریان
حمیده خداویسی
چکیده
با توجه به نقش پا در تشکیل سطح اتکای بدن در هنگام ایستادن به­عنوان یک مؤلفۀ مهم بیومکانیکی در حفظ تعادل بدن، هر گونه تغییر در ساختار آناتومیکی طبیعی پا می­‌تواند بر کنترل تعادل بدن مؤثر باشد. هدف مطالعه حاضر، مقایسه عملکرد تعادلی ایستا در بین نوجوانان با ساختار متفاوت پا بود. 60 دختر نوجوان در سه گروه با ساختار پای پرونیت، سوپی­نیت و طبیعی به­‌عنوان آزمودنی شرکت کردند. برای مشخص ­کردن نوع ساختار پای آزمودنی­‌ها از روش افتادگی استخوان ناوی[1] استفاده شد. برای سنجش عملکرد تعادل ایستا از سیستم شمارش تعداد خطای بالانس در دو سطح سفت و نرم استفاده شد (05.0P<). نتایج نشان داد که بر روی سطح سفت گروه پای پرونیت و گروه پای طبیعی از عملکرد تعادلی نسبتاً مشابهی برخوردار هستند. اما در سطح نرم، گروه پای طبیعی، عملکرد بهتری در مقایسه با گروه پای پرونیت داشت. گروه پای سوپی‌نیت بر روی هر دو سطح سفت و نرم عملکرد تعادلی ضعیف‌­تری در مقایسه با دو گروه دیگر نشان داد. نتایج این مطالعه نشان داد که وجود تغییرات در ساختار آناتومیکی پا می­‌تواند بر عملکرد تعادلی ایستا مؤثر باشد.



[1]. Navicular-drop

کلیدواژه‌ها

تعادل ایستا
پای پرونیت
پای سوپینیت
سیستم شمارش تعداد خطای بالانس

عنوان مقاله English

Comparison of Static Postural Stability Performance Among Adolescents with Different Foot Types

نویسندگان English

M Anbarian
H Khodavisi
چکیده English

The foot represents a small base of support as an important biomechanical parameter that the body maintains balance. It is assumed that postural stability performance could be affected by even minor alteration in the support surface in upright standing position. Therefore, the purpose of this study was to determine if individuals with different foot types would demonstrate differences in static postural stability performance. Sixty adolescent girls were categorized into three groups depending on their bilateral foot types namely, pronated, supinated and rectus feet. Foot types defined by Navicular-drop measures. We measured static stability performance with the Balance Error Scoring System once firm and once on a foam surface. ANOVA with repeated measures was employed for statistical analyses (p<0.05). Results showed no significant differences between individuals with pronated and rectus feet were revealed for static stability scores while standing on the firm surface. Pronated group showed a poor balance performance while tested on the foam surface in comparison with rectus group. Subjects with supinated feet had a poorer static stability performance on both firm and foam surfaces than others groups. These results demonstrated that static stability performance could be affected by foot type

کلیدواژه‌ها English

Static stability
Supinated foot
Pronated foot
Balance error scoring system
1. Wilcock, I. (2005). The effect of water immersion, active recovery and passive recovery on repeated bouts of explosive exercise and blood plasma fraction: AUT University
2. Calder, A. (2003). Recovery training. Sports Medicine Australia. 23(11):312-322.
3. Dawson, B. Gow, S. Modra, S. Bishop, D. Stewart, G. (2005). Effects of immediate post-game recovery procedures on muscle soreness, power and flexiblity levels over the next 48 hours. J Sci & Med in Sport. 8(2):210-21.
4. Kinugasa, T.K. (2009). A comparison of post-match recovery strategies in youth soccer players. J Strength Cond Res. 23(5):123-129.
5. Sahlin, K. (1986). Muscle fatigue and lactic acid accumulation. Acta Physiol Scand Suppl. 55(6):83-91.
6. Ingram, J. Dawson, B. Goodman, C. Wallman, K. Beilby, J. (2009). Effect of water immersion methods on post-exercise recovery from simulated team sport exercise. J Sci & Med in Sport. 12(3):417-21
7. Peiffer, J.A. Nosaka, K. Peake, J.M. Laursen, P.B. (2009). Effect of cold water immersion after exercise in the heat on muscle function, body temperatures, and vessel diameter. J Sci & Med in Sport. 12(1):91-6.
8. Fabrízio, D. Masi, R. Estelio, H. Martin, D. Ana, C. Lopes, B. Jefferson, S. N. Victor, M. R. (2007). Is blood lactate removal during water immersed cycling faster than during cycling on land? J Sports Sci & Med. 6: 188 - 92
9. Wilcock, I.M. John, B. Hing, W. (2006). Water immersion: Does it enhance recovery from exercise? Sports Physiol & Performance. 1:195-206.
10. King, M.D. Rob, N. (2009). The Effects of Recovery Interventions on Consecutive Days of Intermittent Sprint Exercise. Journal of Strength and Conditioning Research. 23(6):1795-802.
11. Vaile, J.H. Gill, N. Dawson,B. (2008). Effect of Hydrotherapy on Recovery from Fatigue Int J Sports Med. 29(7):539-44
12. Monedero, J.D. (2000). Effect of recovery interventions on lactate removal and subsequent performance. Int J Sports Med. 21(8):107-115.
13. Nikolai, A.S. (2007). Possible use of repeated cold stress for reducing fatigue in Chronic Fatigue Syndrome: a hypothesis. Sports Medicen. 10(15):108-14.
14. Yeargin, S.W. Casa, D.J. McClung, J.M. Knight, J.C. Healey, J.C. Goss, P.J. et al. (2006). Body cooling between two bouts of exercise in the heat enhances subsequent performance. The J Strength & Conditioning Res. 20(2):383-9.
15. Duffield, R. Cannon, J. King, M. (2010). The effects of compression garments on recovery of muscle performance following high-intensity sprint and plyometric exercise. J Sci & Med in Sport. 13(1):136-40.
16. Morton, R.H. (2007). Contrast water immersion hastens plasma lactate decrease after intense anaerobic exercise. J Sci & Med in Sport. 10(6):467-70.
17. Fell, J. (2005). Exercise-induced fatigue and recovery in the aging athlete australia: Griffith University.
18. Wallman, K.E. Goodman, C. Grove, R. Guilfoyle, A.M. (2004). Randomised controlled trial of graded exercise in chronic fatigue syndrome. Med J Aust. 180(9):444-8.
19. Buchheit, M.A. Chivot, A. Lepretre, P.M. Ahmaidi, S. Laursen, P.B. (2010). Effect of in- versus out-of-water recovery on repeated swimming sprint performance. Eur J Appl Physiol. 108(2):321-5
20. Proulx, M.B. Kenny, G.P. (2003). Effect of water temperature on cooling efficiency during hyperthermia in humans. J Applied Physiol. 94(6):1317-23.
21. Crowe, M.J. Rudd, D. (2007). Cold water recovery reduces anaerobic performance. Int J Sports Med. 28(12):994-1006
22. Vaile, J.H. Shona, K. Gill, J. Nicholas, B. Dawson, B. (2008). Effect of cold water immersion on repeat cycling performance and thermoregulation in the heat. J Sports Sci. 26(8):431-40.
23. Argyris, G. (2005). Influence of different rest intervals during active or passive recovery on repeated sprint swimming performance. J Applied Physiol. 93(9):694-700.