نوع مقاله : مقاله پژوهشی
نویسندگان
گروه تندرستی و توانبخشی ورزشی، دانشکده علوم ورزشی و تندرستی، دانشگاه شهید بهشتی تهران، تهران، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aims Monitoring the kinematic components of the trunk, knee, hip, and ankle is an effective approach for predicting primary and secondary injuries to the anterior cruciate ligament (ACL). Accordingly, the aim of this study was to examine the chronic effects of fatigue caused by football training and matches on selected kinematic components of the knee and ankle in football players with and without a history of ACL surgery.
Methods This study involved 20 football players with a history of ACL surgery and 20 players without any history of surgery, all selected purposefully from the Premier League of Tehran Province. The participants’ mean age, weight, and height were 22.93±3.74 years, 73.96±2.94 kg, and 1.76±0.03 m, respectively. The kinematic components evaluated included the maximum knee valgus angle, maximum knee flexion, and maximum ankle dorsiflexion angle during a double-leg jump-landing pattern. Data were collected during the second half of the league season, and player fatigue was assessed using the modified Borg rating of perceived exertion (RPE) scale. Data were then analyzed using a two-way ANOVA.
Results The findings revealed significant differences in the maximum knee valgus angle between healthy players and players with a history of ACL surgery, as well as in maximum knee flexion during deep landing among players with a history of surgery (P≤0.05). However, no significant differences were observed in other kinematic components (P≥0.05).
Conclusion Overall, the results suggest that fatigue caused by football matches and training at the end of the season can lead to reduced maximum knee flexion in players with a history of ACL surgery and increased knee valgus in both groups. Additionally, the knee valgus angle during landing was generally higher in players with a history of ACL surgery compared to healthy players. Furthermore, the valgus angle in players with ACL surgery was consistently higher in both pre-test and post-test assessments than in healthy players.
کلیدواژهها [English]
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