Physical Fitness Profile of Junior High School Students: Evidence from Indonesian Physical Fitness Test (TKJI) Assessment

DOI

10.2991/978-2-38476-591-1_16How to use a DOI?

Keywords

Physical fitness assessment; Youth fitness; TKJI; Exercise physiology; Motor performance; Health-related fitness; School intervention

Abstract

This study aims to evaluate the physical fitness profile of seventh-grade students at Al-Ulum Private Junior High School during the 2023/2024 academic year within the context of Physical Education (PJOK) learning. A quantitative descriptive design employing a survey method with standardized test-based measurements was adopted. The sample consisted of 30 students selected through simple random sampling. Physical fitness was assessed using the Indonesian Physical Fitness Test (Tes Kebugaran Jasmani Indonesia/TKJI) for ages 13–15, which includes five components: 50-meter sprint (speed), hanging body lift (upper body strength), 60-second sit-up (muscular endurance), vertical jump (explosive power), and middle-distance running (800 m for females and 1000 m for males) to measure cardiorespiratory endurance. The findings indicate that most students demonstrated a moderate level of physical fitness (70%), followed by a small proportion in the good category (10%), while 20% were classified as having low fitness levels. No participants were categorized as very high or very low. These results suggest that although students exhibit adequate baseline fitness, there remains substantial room for improvement, particularly in components associated with endurance and muscular strength. From a sport science perspective, moderate fitness levels among adolescents are often associated with insufficient physical activity intensity and frequency during structured school programs [1], [2]. Previous studies highlight that optimized physical education interventions significantly enhance cardiovascular fitness and overall physical performance in school-aged populations [3], [4]. Therefore, it is recommended that PJOK learning be reinforced through structured, progressive, and evidence-based training models to improve students’ physical fitness outcomes. In conclusion, the overall fitness level of the observed cohort falls within the moderate category, emphasizing the need for pedagogical and programmatic enhancements in school-based physical education to support improved health and performance outcomes.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Wintari Abadi
AU  - Suprayitno Suprayitno
AU  - Novita Novita
PY  - 2026
DA  - 2026/06/24
TI  - Physical Fitness Profile of Junior High School Students: Evidence from Indonesian Physical Fitness Test (TKJI) Assessment
BT  - Proceedings of the 2nd International Conference of Sport Science, Sport Coaching Science, and Physical Education, and Recreation 2025 (ICOSSCOPER 2025)
PB  - Atlantis Press
SP  - 162
EP  - 170
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-38476-591-1_16
DO  - 10.2991/978-2-38476-591-1_16
ID  - Abadi2026
ER  -