The corrective effect of an NASM based resistance exercise on genu varum deformity in teenage football players

Document Type: Original Article

Authors

1 shams higher education institution for science and technology, Tabriz, Iran

2 The Department of Physical Education and Sport, Atatürk University, Erzurum, Turkey

Abstract

Background: The study of the factors affecting the enhancement of physical performance of individuals has been a subject of research for many years. Knee joint plays an essential role in supporting the body and transferring its weight during various activities. Therefore, it is important to fully understand knee anomalies to correct and reduce the effects of these abnormalities. The nature of football exercise can cause postural disorders in the athletes' joints, especially the knee joint. Genu varum deformity is the most common disorder among football players which can be improved by facilitating certain corrective exercises. Among these exercises, the national academy of sports medicine (NASM) method has previously shown effectiveness in correcting many deformities including genu varum.
Methodology: Out of 200 Tabriz teenage football club players, 28 individuals with genu varum deformity were purposefully selected and divided into experimental and control groups. A resistance exercise based on the national academy of sports medicine (NASM) method was performed by the experimental group players for 8 weeks with 6 sessions per week and for 60 minutes per session.
Results: The results of the present study indicated a significant difference in genu varum severity between the control and experimental groups after exercise (p=0.05) with significant improves in the experimental group (p=0.001).
Conclusion: NASM based resistance exercises were capable of improving the state of genu varum deformity in teenage football players.

Keywords


  1. Levangie PK, Norkin CC. Joint Structure and function: a comprehensive analysis. 3rd. Philadelphia: FA. Davis Company. 2000.
  2. Hadadenezhad M, Letafatkar A. The relationship between genu varum abnormality and lower extremity's performance and strength in teenage footballers. Journal of Research in Rehabilitation Science. 2011;7(2):188-96.
  3. Chantraine AL. Knee joint in soccer players: osteoarthritis and axis deviation. Med Sci Sports Exerc. 1985;17(4):434-9. DOI
  4. Asadi K, Mirbolook A, Heidarzadeh A, Kivi MM, Meybodi MK, Rad MR. Association of soccer and genu varum in adolescents. Trauma monthly. 2015;20(2). DOI
  5. Thijs Y, Bellemans J, Rombaut L, Witvrouw E. Is high-impact sports participation associated with bowlegs in adolescent boys?. Med Sci Sports Exerc. 2012;44(6):993-8. DOI
  6. Sokhangoy H. Reform movements. Tabriz, 2013.
  7. Samaei A, Bakhtiary AH, Elham F, Rezasoltani A. Effects of genu varum deformity on postural stability. International journal of sports medicine. 2012;33(06):469-73. DOI
  8. Yim-Chiplis PK, Talbot LA. Defining and measuring balance in adults. Biological research for nursing. 2000;1(4):321-31. DOI
  9. Zhang LQ, XU D, WANG G, Hendrix RW. Muscle strength in knee varus and valgus. Medicine & Science in Sports & Exercise. 2001;33(7):1194-9.
  10. Shamsi M, Rahmaninia F, Dameerchi A, Norasteh A. Knee joint cinematics in shooting for footballers with genu varum, Journal of Sport Medicine Review(Persian), 2011; 4(11):109-24.
  11. Fatahi F, Mongashti Joni Y, Najafi A, Hossein Pour E. Investigating Tibialis Anterior Muscle Activity Levels in Patients With Genu Varum During Single-Leg Jump-Landing Task. Physical Treatments-Specific Physical Therapy Journal. 2018;7(4):205-14. DOI
  12. Ghasemi G, Sadeghi M, Minasian V, Velayati F. Effect of an eight week corrective training program on lumbar lordosis of middle school girl's students. Management of Sport and Movement Sciences. 2013;3(5):101-8.
  13. Hasanvand B, bahrami F, darvishi A, karami K, chegeni M. The effect of regular corrective exercise on musculoskeletal deformities in Khorramabad school girls. Yafte. 2011; 13 (1) :77-84
  14. Erfanian zorofi F, Moazzami M, Mohamadi MR. The effect of resistance training on static balance and pain in elderly women with varus knee and osteoarthritis by using elastic band. Journal of Paramedical Sciences & Rehabilitation. 2016;5(2):14-24. DOI
  15. Esmaeili H, Anabarian M, Salari EF. The Effect of an Eight-Week Corrective Exercise Program on Plantar Pressure Distribution Pattern in Adolescents with Genu Varum Deformity during Stance Phase of Walking. Journal of Sport Medicine. 2013; 5(2);73-86
  16. Fatahi S. Comparison of the Effect of Two Modes of Corrective Exercise and NASM on Changes of Parenteral Knee Anomalies Hamedan city football students. the first national conference on physical training and sport science. Islamic Azad University of Larestan. 2015.
  17. Shams H, Shayegan N. The influence of resistance exercises with NASM standards under the rubber band on changes to the deformity of knee abnormalities teenage footballer Tabriz County. International Journal of Scientific & Engineering Research. 2019;10(7):900-3
  18. Clark M, Lucett S. NASM essentials of corrective exercise training. Lippincott Williams & Wilkins; 2010.
  19. Ghani Zadeh Hesar N, Alidokht FA, Sadehdel Fadafan Z. The impact of the reform program (NASM) on performance tests and indicators foot structure (FPI) in children with flat foot. 10th International Congress on Sport Science, Tehran, Iran. 2017. DOI