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PERBEDAAN PENGARUH OPEN KINETIC CHAIN EXERCISE DAN CLOSE KINETIC CHAIN EXERCISE TERHADAP KEKUATAN OTOT QUADRICEPS FEMORIS PASCA OPERASI ANTERIOR CRUCIATE LIGAMEN DITINJAU DARI USIA: The Effect of Open Kinetic Chain Exercise and Close Kinetic Chain Exercise on Strength Quadriceps Femoris Muscle Post Anterior Cruciate Ligament Surgery in terms of Age Miftahudin Sigit; Muchsin Doewes; Hanik Liskustyawati
ASSYIFA : Jurnal Ilmu Kesehatan Vol. 2 No. 1 (2024)
Publisher : Forind Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62085/ajk.v2i1.37

Abstract

This research is an experimental research. The sample is post-Anterior Cruciate Ligament surgery patients at the Solo Sport Physiotherapy Clinic as many as 16 people including Open and Close exercise categories and based on adolescent and adult age categories. Samples were taken using purposive sampling technique. The variables in this study include: 1) Quadriceps Femoris Muscle Strength (Y); 2) Open Exercise (a1); 3) Close Exercise (a2); and 4) Age (b). Research data were obtained from measurements using an Electromyograph. Hypothesis testing using two-way Anova test and t test. Conclusion, (1) There is a difference in the effect of quadriceps femoris muscle strength after being given open kinetic chain and close kinetic chain exercises in ACL postoperative patients. Which means that close kinetic chain training has a better improvement than open kinetic chain in ACL postoperative patients. (2) There are differences in the effect of quadriceps femoris muscle strength in adolescent and adult athletes. Which means that adult athletes have a better increase in quadriceps femoris muscle strength compared to adolescent athletes. (3) There is no interaction between open kinetic chain and close kinetic chain training methods with adolescent and adult age on increasing quadriceps muscle strength.
Smart Strategies To Prevent Acl Injuries: What Does The Research Say About Fifa 11+? Sigit, Miftahudin; Wijaya, Habibi Hadi; Damai, A.Ine Aprilia; Alviana, Irana Mery
JSKK (Jurnal Sains Keolahragaan dan Kesehatan) Vol 10 No 2 (2025)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jskk.2025.10.2.4

Abstract

Background: Anterior cruciate ligament (ACL) injury is one of the most serious and frequently occurring injuries among youth football players. Such injuries not only disrupt athletic performance and training continuity but also pose long-term risks to an athlete's career and knee joint health. Neuromuscular-based preventive approaches have become a central focus in modern sports science to reduce the incidence of non-contact injuries. Objective: This systematic review aims to evaluate the scientific evidence regarding the effectiveness of the FIFA 11+ program in reducing the risk of ACL injuries among adolescent and young football players. Methods: A comprehensive literature search was conducted through PubMed, Scopus, ScienceDirect, and Google Scholar for studies published between 2008 and 2024. The inclusion criteria included randomized controlled trials (RCTs), prospective cohort studies, and systematic reviews or meta-analyses that assessed the impact of the FIFA 11+ program on ACL injury prevention. Results: A total of 10 studies met the inclusion criteria. Most of these studies demonstrated that implementation of the FIFA 11+ program reduced ACL injury risk by 30–77%, improved neuromuscular stability, and enhanced postural control and dynamic balance. The program's effectiveness was highly influenced by coach adherence, supervision quality, and training frequency of at least two to three sessions per week. Conclusion: The FIFA 11+ program has been proven to be an effective, low- cost, and easily implementable warm-up strategy for ACL injury prevention among youth football players in Indonesia. It has the potential to serve as a sustainable national model for neuromuscular-based injury prevention. Keywords: ACL injury, injury prevention, FIFA 11+, neuromuscular training, youth football, coach education