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Volume 84
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Proceeding Paper

A Preliminary Study for Isometric, Isotonic, and Isokinetic Relationships in Vertical Drop Jumps at Heights on the Beam †

by
Lobes Herdiman
1,* and
Hendrawan Candra Purnama
2
1
Industrial Engineering Departement, Universitas Sebelas Maret, Surakarta 57126, Indonesia
2
Sathar 54 Depohar 50 TNI Angkatan Udara, Surakarta 57375, Indonesia
*
Author to whom correspondence should be addressed.
†
Presented at the 8th Mechanical Engineering, Science and Technology International Conference, Padang Besar, Perlis, Malaysia, 11–12 December 2024.
Eng. Proc. 2025, 84(1), 78; https://doi.org/10.3390/engproc2025084078
Published: 18 March 2025
(This article belongs to the Proceedings of The 8th Mechanical Engineering, Science and Technology International Conference)
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Abstract

Muscle cramps often accompany a soldier’s high physical readiness in a tactical environment. Close monitoring of the muscles is required during the downward jump training at a certain height, which combines isometric, isotonic, and isokinetic movements. In this paper, we propose a preliminary study on vertical jumps and forward and backward body postures to detect the onset of cramps. Six soldiers were divided into two groups of three subjects each: group one, forward fall jumps, and the other group, backward fall jumps. A high-resolution camera captured the movements, which were then analyzed using Kinovea software version 0.9.5. Downward jumps with the body backward are less likely to cause cramps, and muscle bands are recommended to prevent leg muscle cramps.
Keywords: soldiers; downward jumps; vertical height; muscle cramps soldiers; downward jumps; vertical height; muscle cramps

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MDPI and ACS Style

Herdiman, L.; Purnama, H.C. A Preliminary Study for Isometric, Isotonic, and Isokinetic Relationships in Vertical Drop Jumps at Heights on the Beam. Eng. Proc. 2025, 84, 78. https://doi.org/10.3390/engproc2025084078

AMA Style

Herdiman L, Purnama HC. A Preliminary Study for Isometric, Isotonic, and Isokinetic Relationships in Vertical Drop Jumps at Heights on the Beam. Engineering Proceedings. 2025; 84(1):78. https://doi.org/10.3390/engproc2025084078

Chicago/Turabian Style

Herdiman, Lobes, and Hendrawan Candra Purnama. 2025. "A Preliminary Study for Isometric, Isotonic, and Isokinetic Relationships in Vertical Drop Jumps at Heights on the Beam" Engineering Proceedings 84, no. 1: 78. https://doi.org/10.3390/engproc2025084078

APA Style

Herdiman, L., & Purnama, H. C. (2025). A Preliminary Study for Isometric, Isotonic, and Isokinetic Relationships in Vertical Drop Jumps at Heights on the Beam. Engineering Proceedings, 84(1), 78. https://doi.org/10.3390/engproc2025084078

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