Comparison of electrical activity of selected ankle muscles in athletes during descent from different heights
(مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف)
| Title | Comparison of electrical activity of selected ankle muscles in athletes during descent from different heights |
|---|---|
| Title Original | مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف |
| Author | Farzaneh Shokrian, Daud Khazri, Hassan Mateen Homai, Ali Fatahi |
| Author Original | فرزانه شکریان داود خضری حسن متین همایی علی فتاحی |
| Publication Place | Shahid Beheshti University of Medical Sciences - Shahid Beheshti University of Medical Sciences |
| Subject | electromyography; landing biomechanics; Twin and soleus muscles; co-contraction; athlete |
| Type | Periodical |
| Language | Arabic |
| Digital | Yes |
| Manuscript | No |
| Library: | Purdue University Libraries |
| Library Asset ID | ISSN: 2251-8401, EISSN: 2252-0414, DOI: 10.32598/SJRM.11.1.8 |
| Record ID | cdi_doaj_primary_oai_doaj_org_article_fa1893b80f93469b8ef9e481072fe595 |
| Notes | Background and objectives Ankle injuries are one of the most common musculoskeletal injuries in sports. Landing properly after jumping will lead to preparation for performing the next skill as well as prevention of various injuries. The purpose of the present study is to compare the electrical activity of selected ankle muscles in athletes when descending from different heights. Materials and methods. The research method is of applied fundamental type and its design is comparative. The statistical sample of the research consisted of 15 athletes (age 23.18±3.2 years, height 190.183±3.6 cm and weight 72.64±12.14 kg) with 3 to 5 years of sports experience. The skill examined from different heights was considered as a percentage of the maximum jump height (100%, 75% and 50%). Recording of the electrical activity of the selected muscles of the ankle joint (twin and sole) was done with an eight-channel Biomed electromyography device with a validity of 34.96% and a reliability of 29.91%. The mean and standard deviation were used to describe the data, the Shapiro-Wilk test was used to check the normality of the data distribution, and to compare the collected data between groups, the analysis of variance test with repeated measures at the significance level of 0.05 and the Bonferroni post hoc test were used. Findings The findings showed that the co-contraction of the medial, external, and soleus muscles caused by jumping at 3 different heights was not significant. The peak contraction amplitude of external biceps muscles was significant between the heights of 75 and 50% (P=0.006) and 100 and 50% (P=0.002). The peak contraction amplitude of the internal biceps muscles was significant between the heights of 75 and 50% (P=0.002) and 100 and 50% (P=0.007). The peak contraction amplitude of the soleus muscles was significant between the heights of 100 and 75% (P=0.013) and 100 and 50% (P=0.17). Conclusion The research results showed an increase in the range of contractile activity of the selected ankle muscles in the anteroposterior axis due to the increase in the height of the jump followed by landing, which is due to the optimal use of the appropriate strategy to control the scentric contraction of the muscles as well as the extensor torque of the ankle joint by increasing the electrical activity of the muscles when hitting the ground, which is considered to be the prevention of injury in the ankle joint. Coaches and athletes can use these results to adopt training methods to strengthen selected ankle muscles considering the optimal execution of landing skills with an injury prevention approach. |
| Atıf Kaynağı | DOAJ Open Access Full Text |
| Bir Parçası Olduğu | Faṣlnāmah-i ʻilmī-pizhūhishī-i, 1401-01, Vol.11 (1), p.98-113 |
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5
مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف
Record ID: 4690130
مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف
Record ID: 4867510
مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف
Record ID: 5300247
مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف
Record ID: 5313331
مقایسه فعالیت الکتریکی عضلات منتخب مچ پا در ورزشکاران هنگام فرود از ارتفاعهای مختلف
Record ID: 5392664