Countermovement jump performance in Malaysian young wushu athletes: normative values and sex-based differences
DOI:
https://doi.org/10.18002/rama.v20i2.2514Keywords:
Martial arts, combat sports, wushu, vertical jump, biomechanics, young athletes, sport scienceAgencies:
The authors and/or project received no fundingAbstract
Wushu, commonly known as kung-fu, is a demanding sport requiring rapid force application to achieve significant vertical jump heights. These jumps are integral for executing complex aerial tasks and obtaining higher performance scores. Purpose: This study aimed to establish normative data for countermovement jump (CMJ) performance parameters in elite wushu athletes. Methods: A cross-sectional design was implemented at the 2022 Malaysia Games (SUKMA) wushu competition with 115 athletes (males=67). Each athlete performed three CMJs with hands akimbo on a pair of force platforms. Performance and biomechanical data (vertical jump height, peak relative propulsive power, peak relative propulsive force, modified reactive strength index, and relative propulsive net impulse) were collected using Hawkins Dynamics software. An ANCOVA was used to compare CMJ parameters across sex and events, controlling for age and body mass. Normative data were established using t-scores. Results: The ANCOVA indicated that CMJ and biomechanical variables differed by sex and age (p<0.01), but not by event. Conclusion: These normative values provide a baseline for understanding CMJ performance in elite wushu athletes and may guide further exploration of training adaptations, injury risk assessment, and performance optimization. However, additional research is warranted to fully validate and expand on the potential practical applications of these findings.
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Bishop, C., Jordan, M., Torres-Ronda, L., Loturco, I., Harry, J., Virgile, A., Mundy, P., Turner, A., & Comfort, P. (2022). Selecting metrics that matter: Comparing the use of the countermovement jump for performance profiling, neuromuscular fatigue monitoring, and injury rehabilitation testing. Strength & Conditioning Journal, 45(5), 545-553. https://doi.org/10.1519/ssc.0000000000000772
Chaabene, H., Behm, D. G., Negra, Y., & Granacher, U. (2019). Acute effects of static stretching on muscle strength and power: An attempt to clarify previous caveats. Frontiers in Physiology, 10, 1468. https://doi.org/10.3389/fphys.2019.01468
Fong, D. T.-P., Hong, Y., Chan, L.-K., Yung, P. S.-H., & Chan, K.-M. (2007). A systematic review on ankle injury and ankle sprain in sports. Sports Medicine, 37(1), 73-94. https://doi.org/10.2165/00007256-200737010-00006
Harry, J. R., Blinch, J., Barker, L. A., Krzyszkowski, J., & Chowning, L. (2022). Low-pass filter effects on metrics of countermovement vertical jump performance. The Journal of Strength and Conditioning Research, 36(5), 1459-1467. https://doi.org/10.1519/jsc.0000000000003611
Hoffman, J. R., Ratamess, N. A., Cooper, J. J., Kang, J., Chilakos, A., & Faigenbaum, A. D. (2005). Comparison of loaded and unloaded jump squat training on strength/power performance in college football players. The Journal of Strength & Conditioning Research, 19(4), 810-815. https://doi.org/10.1519/00124278-200511000-00014
Kirby, T. J., McBride, J. M., Haines, T. L., & Dayne, A. M. (2011). Relative net vertical impulse determines jumping performance. Journal of Applied Biomechanics, 27(3), 207–214. https://doi.org/10.1123/jab.27.3.207
Lakens, D. (2022). Sample size justification. Collabra: Psychology, 8(1), 33267. https://doi.org/10.1525/collabra.33267
Markovic, G., Dizdar, D., Jukic, I., & Cardinale, M. (2004). Reliability and factorial validity of squat and countermovement jump tests. The Journal of Strength & Conditioning Research, 18(3), 551-555. https://doi.org/10.1519/1533-4287(2004)18%3C551:rafvos%3E2.0.co;2
McMahon, J. J., Ripley, N. J., & Comfort, P. (2022). Force plate-derived countermovement jump normative data and benchmarks for professional Rugby League players. Sensors, 22(22), 8669. https://doi.org/10.3390/s22228669
Meeuwisse, W. H., Sellmer, R., & Hagel, B. E. (2003). Rates and risks of injury during intercollegiate basketball. The American Journal of Sports Medicine, 31(3), 379-385. https://doi.org/10.1177/03635465030310030901
Montalvo, S., & Dorgo, S. (2019). The effect of different stretching protocols on vertical jump measures in college age gymnasts. The Journal of Sports Medicine and Physical Fitness, 59(12), 1956-1962. https://doi.org/10.23736/S0022-4707.19.09561-6
Montalvo, S., Gonzalez, M. P., Dietze-Hermosa, M. S., Eggleston, J. D., & Dorgo, S. (2021). Common vertical jump and reactive strength index measuring devices: A validity and reliability analysis. The Journal of Strength & Conditioning Research, 35(5), 1234-1243. https://doi.org/10.1519/jsc.0000000000003988
Montalvo, S., Gonzalez, M. P., Dietze-Hermosa, M. S., Martinez, A., Rodriguez, S., Gomez, M., Cubillos, N., Ibarra-Mejia, G., Tan, E., & Dorgo, S. (2024). Effects of different stretching modalities on the antagonist and agonist muscles on isokinetic strength and vertical jump performance in young men. The Journal of Strength and Conditioning Research, 39(2):173-18. https://doi.org/10.1519/JSC.0000000000004937
Montalvo, S., Tan, E., Conde, D., Mejia-Ibarra, G., & Dorgo, S. (2020). Injury rates among elite wushu kung-fu martial artists and access to health care: 3847 Board #164 May 30 8:00 AM - 9:30 AM. Medicine and Science in Sports and Exercise, 52, 1057-1057. https://doi.org/10.1249/01.mss.0000687104.29789.20
Montalvo, S., Tan, E., & Pok, C. (2022). Neuromuscular responses to a competitive wushu routine during the IWUF wushu taolu virtual competition: 808. Medicine & Science in Sports & Exercise, 54(9S), 189. http://dx.doi.org/10.1249/01.mss.0000877428.99586.7c
Morin, J.-B., Edouard, P., & Samozino, P. (2011). Technical ability of force application as a determinant factor of sprint performance. Medicine & Science in Sports & Exercise, 43(9), 1680-1688. https://doi.org/10.1249/mss.0b013e318216ea37
Pérez-Castilla, A., Weakley, J., García-Pinillos, F., Rojas, F. J., & García-Ramos, A. (2021). Influence of countermovement depth on the countermovement jump-derived reactive strength index modified. European Journal of Sport Science, 21(12), 1606-1616. https://doi.org/10.1080/17461391.2020.1845815
Philpott, L. K., Forrester, S. E., van Lopik, K. A., Hayward, S., Conway, P. P., & West, A. A. (2021). Countermovement jump performance in elite male and female sprinters and high jumpers. Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, 235(2), 131-138. https://doi.org/10.1177/1754337120971436
Tan, E. C., Beaven, C. M., Li, C. T. C., McGuigan, M. R., & Cronin, J. B. (2017). Strength and power profile of world class wushu taolu athletes. Journal of Australian Strength and Conditioning, 25(3), 13-18.
Tan, E. C., Onn, S. W., & Montalvo, S. (2024). Measuring vertical jump height with artificial intelligence through a cell phone: A validity and reliability report. The Journal of Strength & Conditioning Research, 38(9), e529-e533. https://doi.org/10.1519/jsc.0000000000004854
Tan, E., Montalvo, S., Gonzalez, M. P., Dietze-Hermosa, M., & Dorgo, S. (2023). Changes in vertical jump performance and body composition before and after COVID-19 lockdown. Journal of Human Sport and Exercise, 18(1), 224-241. https://doi.org/10.14198/jhse.2023.181.18
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Copyright (c) 2025 Erik C.H. Tan, Dan Rio-Rodríguez, Ariel Mancilla, Matthew P. Gonzalez, Samuel Montalvo

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