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All Journal Jurnal Pendidikan Jasmani (JPJ)
Mahmuddin
Universitas Negeri Medan, Sumatera Utara
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Biomechanical Study of Pencak Silat Athletes' Sickle Kicks in Terms of Initial Angle Variation Robbie Armaya Nasution; Deni Ardian Sitompul; Bani Pratama; Huzaifa Alfatah; Jet Sitiven Ginting; Mahmuddin
Jurnal Pendidikan Jasmani (JPJ) Vol. 7 No. 2 (2026): Jurnal Pendidikan Jasmani (JPJ)
Publisher : Sekolah Tinggi Olahraga dan Kesehatan Bina Guna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55081/jpj.v7i2.4849

Abstract

This study aims to analyze the biomechanics of pencak silat athletes' crescent kicks based on variations in waist rotation angle using the Kinovea application. The research subject was one athlete who performed crescent kicks with small and wide rotations. The results of the analysis showed that small rotations produced shorter execution times, higher kick speeds, and longer trajectories compared to wide rotations. Meanwhile, wide rotation slows down execution and reduces speed, although it has the potential to increase attack force through momentum accumulation. These findings confirm that variations in waist rotation angle affect the effectiveness of the crescent kick, with small rotation being more suitable for fast attacks and wide rotation being more beneficial in generating powerful attacks.
Analysis Of 100-Meter Sprint Acceleration Movement (Study Of Male 100-Meter Sprint Athletes In National Training Center B, From A Biomechanical Perspective) Mahmuddin; Wahyu Purnomo; Agung Pratama; Zauzy Pranda Ginting; Wibisono Surya Azwan; Farros Garsyani Habibie
Jurnal Pendidikan Jasmani (JPJ) Vol. 7 No. 2 (2026): Jurnal Pendidikan Jasmani (JPJ)
Publisher : Sekolah Tinggi Olahraga dan Kesehatan Bina Guna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55081/jpj.v7i2.4866

Abstract

This study aims to analyze acceleration movement in the 100-meter sprint of male athletes from the National Training Center B from a biomechanical perspective. The main focus of the study is to examine the start phase, acceleration phase, and stride technique that affect optimal speed. The research method uses a qualitative descriptive approach with three-dimensional video analysis. Data were collected through high-speed camera recordings and measurements of stride length, stride frequency, push-off angle, and reaction time. The results of the analysis show that in the initial acceleration phase, the optimal push-off angle is in the range of 42°–45° to the track surface, while the highest stride frequency is achieved at a distance of 30–50 meters. In conclusion, mastery of biomechanical techniques, especially in the start and acceleration phases, greatly influences the achievement of maximum speed in the 100-meter sprint. 
Co-Authors Agung Pratama Bani Pratama Deni Ardian Sitompul Farros Garsyani Habibie Huzaifa Alfatah Jet Sitiven Ginting Robbie Armaya Nasution Wahyu Purnomo Wibisono Surya Azwan Zauzy Pranda Ginting