| The effect of 11+ kids and 11+ kids modified program on the strength and electromyography of knee muscles of 11-12 years old male football player |
| Paper ID : 1792-SSRC-13TH |
| Authors |
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maryam sharifi *1, abdolhamid daneshjoo1, mansoor sahebozamani1, Roohollah Nikooie2, mohamad reza amir seifadini1, mahshid zarezade3 1Shahid Bahonar university of Kerman, Kerman, Iran 2Department pf exercise physiology-Shahid Bahonar University-Kerman- Iran 3Shahid Bahonar university of Kerman. Kerman, Iran |
| Abstract |
| Background & Aims: The results of studies show that 11+ kids does not improve hamstring muscle strength. While it strengthens the quadriceps muscles well, and as a result, the ratio of hamstring muscles to quadriceps increases the risk of ACL injury. Researchers believe that the 11+ kids should be modified and changed according to the needs of footballers. Therefore, the aim of this study was to investigate the effect of the 11+kids modified and 11+ kids on the strength and electromyography of the knee muscles of 11-12 year old male football players. Methodology: The present article is a RCT study in which 39 players (mean±standard deviation; age: 11.83±0.58 years, height: 1.41±4.14 m, weight: 35.09±5.53 kg) were purposefully selected from Kerman Mehrab club and randomly divided into three groups: 11+ kids, 11+ kids modified and control. Before and after 10 weeks of the 11+ kids, the modified +11 kids and the traditional warm-up programs in three groups, 1RM and electromyography of the knee muscles was measured. To evaluate the effect of exercises in three groups, mixed repeated measures and ANCOVA statistical were used (P≥ 0/05). Results: Based on the results, there was a significant difference in the electromyography of the biceps femoris muscle (F = 10.482, p = 0.001) and 1RM hamstring muscle (F = 0.094, p = 0.002) were observed between the three groups. But this difference was in rectus femoris muscle (F = 1.699, p= 0.199) and maximum strength of quadriceps muscles (F= 2.077, p = 0.141) was not significant. Conclusion: The results showed that the 11+kids modified program, improving the strength of the knee extensor muscles, also improves the flexor muscles. But 11+ kids program only improves knee extensor muscles. Also, in the 11+ kids modified program, the ratio of biceps femoris muscle to rectus femoris muscle improved. |
| Keywords |
| "Football", "11+ kids", "Electromyography", "strength" |
| Status: Abstract Accepted (Oral Presentation) |
