Volume 32, Issue 4 (July 2021)                   Studies in Medical Sciences 2021, 32(4): 252-261 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Eghbali meydani M, Jafarnezhadgero A. THE EFFECT OF LONG-TERM USE OF BRACES ON ELECTRICAL MUSCLE ACTIVITY IN PEOPLE WITH GENU VARUS WHILE RUNNING: A RANDOMIZED CONTROLLED TRIAL. Studies in Medical Sciences 2021; 32 (4) :252-261
URL: http://umj.umsu.ac.ir/article-1-5448-en.html
Associate Prof. Sport Biomechanics, Department. of Physical Education and Sports Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran (Corresponding Author) , amiralijafarnezhad@gmail.com
Abstract:   (2054 Views)
Background & Aims: Genu varus is one of the most common lower limb complications that affect a person's performance during daily activities and sports. The aim of this study was to investigate the effect of using knee braces on the frequency content of lower limb muscles in people with genu varus while running.
Materials & Methods: The present study was quasi-experimental. 30 male students with genu varus (20-30 years) were randomly divided into control and intervention groups. Knee brace was used for 8 weeks in the experimental group. The subjects used a knee brace in most of their daily activities. Electrical activity of selected muscles was recorded by electromyography system. For statistical analysis, repeated measures analysis of variance (ANOVA) was used at a significance level of 0.05.
Results: The results of the present study showed that the electrical activity of the biceps muscle showed a significant decrease during stance phase by -67.63% at post-test compared to the pre-test (p = 0.026). Also, the electrical activity of the biceps muscle during stance at the post-test compared to the pre-test showed a significant decrease by 21.09% (p = 0.036). The electrical activity of other muscles in the intervention group did not show any significant difference during the post-test compared to the pre-test (p <0.05).
Conclusion: Due to the decrease in the frequency of medial gastrocnemius and biceps femoris muscles, it can be stated that long-term use of the brace can improve running mechanics.
Full-Text [PDF 504 kb]   (817 Downloads)    
Type of Study: Research | Subject: فیزیک پزشکی

References
1. Zandi ZS, Amir-Seifoddini M, Amiri-Khorasani M. Evaluation of Lower Extremity Kinematic Characteristics during Single-Leg Landing from Different Heights in Patients with Knee Valgus Deformity. J Rehab Med 2017; 6(1):122-31. doi: 10.7547/0950531. [DOI:10.7547/0950531] [PMID]
2. Priore LB, Lack S, Garcia C, Azevedo FM, de Oliveira Silva D. Two weeks of wearing a knee brace compared with minimal intervention on kinesiophobia at 2 and 6 weeks in people with patellofemoral pain: a randomized controlled trial. Arch Phys Med Rehabil 2020;101(4):613-23. [DOI:10.1016/j.apmr.2019.10.190] [PMID]
3. Williams DS, McClay IS, Hamill J, Buchanan TS. Lower extremity kinematic and kinetic differences in runners with high and low arches. J Appl Biomech 2001;17(2):153-63. [DOI:10.1123/jab.17.2.153]
4. Van Gheluwe B, Kirby KA, Hagman F. Effects of simulated genu valgum and genu varum on ground reaction forces and subtalar joint function during gait. J Am Podiatr Med Assoc 2005;95(6):531-41. doi: 10.7547/0950531. [DOI:10.7547/0950531] [PMID]
5. Tumkur Anil Kumar N, Oliver JL, Lloyd RS, Pedley JS, Radnor JM. The influence of growth, maturation and resistance training on muscle-tendon and neuromuscular adaptations: A narrative review. Sports 2021;9(5):59. doi: 10.3390/sports9050059 [DOI:10.3390/sports9050059] [PMID] [PMCID]
6. Cronin JB, Hansen K. Strength and power predictors of sports speed. J Strength Cond Res 2005;19(2):349-57. doi: 10.1519/14323.1. [DOI:10.1519/14323.1] [PMID]
7. Letafatkar A, Hadadnezhad M, Shojaedin S, Mohamadi E. Relationship between functional movement screening score and history of injury. Int J Sports Phys Ther 2014;9(1):21. [PMID] [PMCID]
8. Sharma L, Song J, Felson DT, Cahue S, Shamiyeh E, Dunlop DD. The role of knee alignment in disease progression and functional decline in knee osteoarthritis. Jama 2001;286(2):188-95. doi: 10.1001/jama.286.2.188. [DOI:10.1001/jama.286.2.188] [PMID]
9. Van Gheluwe B, Kirby KA, Roosen P, Phillips RD. Reliability and accuracy of biomechanical measurements of the lower extremities. J Am Podiatr Med Assoc 2002;92(6):317-26. doi: 10.7547/87507315-92-6-317. [DOI:10.7547/87507315-92-6-317] [PMID]
10. William D, Mc Clay I, Hamil J. Arch Structure and Injury Patterns in Runner. Clin Biomech 2001;16:282-91. doi: 10.1016/s0268-0033(01)00005-5. [DOI:10.1016/S0268-0033(01)00005-5]
11. Levangie PK, Norkin CC. Joint structure and function: a comprehensive analysis. F.A. Davis Company; 2011. [Google Scholar]
12. Samaei A, Bakhtiary AH, Hajihasani A, Fatemi E, Motaharinezhad F. Uphill and downhill walking in multiple sclerosis: a randomized controlled trial. Int J MS Care 2016;18(1):34-41. doi: 10.7224/1537-2073.2014-072. [DOI:10.7224/1537-2073.2014-072] [PMID] [PMCID]
13. Chirgwin JM, Przybyla AE, MacDonald RJ, Rutter WJ. Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochemistry 1979;18(24):5294-9. doi: 10.1021/bi00591a005. [DOI:10.1021/bi00591a005] [PMID]
14. Steadman JR, Karas SG, Schlegel TF. The Microfracture Technique in the Treatment of. J Knee Surg 2003;16(2):83-6. [Google Scholar]
15. Konrad P. A practical Introduction to Kinesiological Electromyography. USA: Noraxon INC; 2005. [Google Scholar]
16. Association WM. Ethical principles for medical research involving human subjects. Declaration of Helsinki. 2004. [Google Scholar]
17. Farahpour N, Jafarnezhadgero A, Allard P, Majlesi M. Muscle activity and kinetics of lower limbs during walking in pronated feet individuals with and without low back pain. J Electromyogr Kinesiol 2018;39:35-41. doi: 10.1016/j.jelekin.2018.01.006. [DOI:10.1016/j.jelekin.2018.01.006] [PMID]
18. Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol 2000;10(5):361-74. doi: 10.1016/s1050-6411(00)00027-4. [DOI:10.1016/S1050-6411(00)00027-4]
19. Ramsey DK, Wretenberg PF, Lamontagne M, Németh G. Electromyographic and biomechanic analysis of anterior cruciate ligament deficiency and functional knee bracing. Clin Biomech 2003;18(1):28-34. doi: 10.1371/journal.pone.0050110. [DOI:10.1371/journal.pone.0050110] [PMID] [PMCID]
20. Pankova B, Kubovy P, Fanta O, Jelen KJ. Plantar pressure distribution changes depending on the use of knee braces. J Biomech 2012;45:S189. [DOI:10.1016/S0021-9290(12)70190-2]
21. Mortaza N, Ebrahimi I, Jamshidi AA, Abdollah V, Kamali M, Abas WABW, et al. The effects of a prophylactic knee brace and two neoprene knee sleeves on the performance of healthy athletes: a crossover randomized controlled trial. Plos One 2012;7(11):e50110. doi: 10.1371/journal.pone.0050110. [DOI:10.1371/journal.pone.0050110] [PMID] [PMCID]
22. Pankova B, Kubovy P, Fanta O, Jelen KJ. Plantar pressure distribution changes depending on the use of knee braces. J Biomech 2012;45:S189. [DOI:10.1016/S0021-9290(12)70190-2]
23. Rishiraj N, Taunton JE, Lloyd-Smith R, Woollard R, Regan W, Clement D. The potential role of prophylactic/functional knee bracing in preventing knee ligament injury. Sport Med 2009;39(11):937-60. [DOI:10.2165/11317790-000000000-00000] [PMID]

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Studies in Medical Sciences

Designed & Developed by : Yektaweb