Literature Review: Biomekanika Counter Movement Jump dan Squat Jump sebagai Pengukuran Vertical Jump

Abstract

This study aims to review and synthesize previous research findings on the biomechanical characteristics of the Countermovement Jump (CMJ) and Squat Jump (SJ) as methods for measuring vertical jump performance. This study employed a literature review approach by examining scientific articles retrieved from the Scopus, Web of Science, PubMed, ScienceDirect, SpringerLink, and Google Scholar databases. The selected literature met the inclusion criteria of discussing the biomechanics of CMJ and SJ, biomechanical variables related to vertical jump performance, and being published in reputable scientific journals. The collected data were analyzed using a content analysis approach and synthesized narratively to provide a comprehensive overview of the existing evidence. The review findings indicate that the Countermovement Jump generally produces greater jump performance than the Squat Jump due to its utilization of the stretch-shortening cycle (SSC), which enhances force production and explosive power. In contrast, the Squat Jump primarily reflects pure concentric muscle contraction, making it an effective assessment for evaluating lower-limb explosive strength without the influence of elastic energy storage. The biomechanical analysis of both jump tests includes several key parameters, such as ground reaction force, peak power, impulse, rate of force development (RFD), take-off velocity, and movement coordination. Furthermore, advances in biomechanical assessment technologies, including force plates, motion capture systems, and inertial measurement units (IMUs), have substantially improved measurement accuracy and contributed to athlete performance evaluation, neuromuscular fatigue monitoring, and evidence-based training program development. In conclusion, the Countermovement Jump and Squat Jump are valid, reliable, and complementary methods for assessing vertical jump performance in biomechanical analyses. The combined use of both tests provides a more comprehensive evaluation of muscular strength, explosive power, stretch-shortening cycle efficiency, and neuromuscular function. Therefore, both assessment methods are recommended as valuable tools for biomechanical research, athletic performance evaluation, training adaptation monitoring, and injury rehabilitation.Penelitian ini bertujuan untuk mengkaji dan mensintesis hasil-hasil penelitian mengenai karakteristik biomekanika counter movement jump dan squat jump sebagai metode pengukuran vertical jump. Penelitian ini menggunakan metode literature review dengan menelaah berbagai artikel ilmiah yang diperoleh dari basis data Scopus, Web of Science, PubMed, ScienceDirect, SpringerLink, dan Google Scholar. Literatur dipilih berdasarkan kriteria inklusi berupa artikel yang membahas biomekanika CMJ dan SJ, variabel biomekanika vertical jump, serta dipublikasikan pada jurnal ilmiah bereputasi. Data dianalisis menggunakan pendekatan analisis isi (content analysis) dan disintesis secara naratif untuk memperoleh gambaran yang komprehensif mengenai hasil penelitian. Hasil kajian menunjukkan bahwa counter movement jump menghasilkan performa lompatan yang lebih tinggi dibandingkan squat jump karena memanfaatkan mekanisme stretch-shortening cycle (SSC) yang meningkatkan produksi gaya dan daya eksplosif. Sebaliknya, squat jump lebih menggambarkan kemampuan kontraksi konsentrik murni sehingga efektif digunakan untuk mengevaluasi kekuatan eksplosif otot tanpa pengaruh energi elastik. Analisis biomekanika kedua metode meliputi berbagai parameter, seperti ground reaction force, peak power, impuls, rate of force development, take-off velocity, dan koordinasi gerak. Perkembangan teknologi, seperti force plate, motion capture, dan inertial measurement unit (IMU), semakin meningkatkan akurasi pengukuran serta mendukung evaluasi performa atlet, pemantauan kelelahan neuromuskular, dan penyusunan program latihan berbasis bukti. Kesimpulan: counter movement jump dan squat jump merupakan metode pengukuran vertical jump yang valid, reliabel, dan saling melengkapi dalam analisis biomekanika. Penggunaan kedua tes secara bersamaan memberikan informasi yang lebih komprehensif mengenai kekuatan, daya ledak, efisiensi stretch-shortening cycle, dan fungsi neuromuskular. Oleh karena itu, kedua metode direkomendasikan sebagai instrumen evaluasi dalam penelitian biomekanika, pembinaan olahraga prestasi, pemantauan adaptasi latihan, dan rehabilitasi cedera.