The Influence of Repeated Drop Jump Training on Countermovement Jump Performance

This study explored the effects of repeated drop jump (DJ) training at different heights on countermovement jump (CMJ) performance in male athletes. Using the BTS SMART-DX infrared motion capture system and BTS P-6000 force plates, researchers measured key performance metrics such as jump height, contact time, reactive strength index, and average rate of force development. The findings highlight that DJ training at 50 cm height effectively enhances stretch-shortening cycle function, neuromuscular adaptability, and jump performance, but only when training volume is kept at or below 200 jumps. Exceeding this threshold leads to fatigue, reduced CMJ performance, and increased injury risk. Therefore, the study recommends limiting high-intensity DJ training at 50 cm to 200 repetitions to maximize benefits while minimizing fatigue and injury.
He L, Li YG, Wu C, Yao S, Su Y, Ma GD, Wang IL. The Influence of Repeated Drop Jump Training on Countermovement Jump Performance. Appl Bionics Biomech. 2022 Feb 21;2022:9609588. doi: 10.1155/2022/9609588. PMID: 35237347; PMCID: PMC8885253