APPLICATIONS

JUMPS

Jumping performance is a clear indicator of lower limb power and strength. The high eccentric demand of the isoinertial exercise performed with INERTIA is a fundamental stimulus for stimulating lower limb strength and power parameters, which can have a positive transfer on jumping performance (Keijzer, Gonzalez, & Beato, 2022). Furthermore, the mechanical stress generated during the transition from the eccentric to the concentric phase of isoinertial flywheel training has been correlated with the improvements obtained in energy production and storage during the stretch-shortening cycle, which are critical during counter-movement jumps. (Keijzer, Gonzalez, & Beato, 2022).

However, the effectiveness of flywheel training on jumping is linked to the specificity of the exercise, with 3-10% improvements on jumps obtainable by implementing sport-specific exercises such as, for example the half squat (Keijzer, Gonzalez, & Blessed, 2022).

Another proposed method to improve jump training is the implementation of Olympic weightlifting variations. Training programs involving high-speed movements, such as those seen with Olympic training, are believed to be superior to traditional weightlifting for improving aspects of power and speed (Harris et al., 2000).

In this support, performing Olympic variations 4 times a week for 15 weeks, a study reported greater improvements in vertical jumping than when performing squat training with the same frequency (Hoffman, et al., 2004).

POWERUP, is perfect for performing Olympic weight lifting variations by minimizing the impact of the technique and making this approach easier to perform for athletes who are not excellent lifters. Furthermore, although not yet investigated in the literature, there is a strong rationale for believing that POWERUP could further improve the performance of horizontal jumps, as the resistance vectors are not perpendicular to the ground.

Another LITE device to improve jumping ability is REVOLVE. Specifically, the application of elastic resistances to improve jumps performance is recommended through the execution of assisted jumps. In fact, training with assisted jumps is considered effective, as it allows to generate a greater acceleration peak during the jump (due to the progressive reduction of the jumper’s weight thanks to the elastic support) (Sheppard et al. 2011). In addition, it also reduces impact of landing forces, making training less traumatic (Argus et al., 2011). In this supoort, elite volleyball players following a 5-week training intervention involving assisted jumping training significantly increased the height of the counter-movement jump (Makaruk et al., 2020).

Argus, C. K., Gill, N. D., Keogh, J. W., Blazevich, A. J., & Hopkins, W. G. (2011). Kinetic and training comparisons between assisted, resisted, and free countermovement jumps. The Journal of Strength & Conditioning Research25(8), 2219-2227.

de Keijzer, K. L., Gonzalez, J. R., & Beato, M. (2022). The effect of flywheel training on strength and physical capacities in sporting and healthy populations: An umbrella review. PloS one17(2), e0264375.

Harris, G. R., Stone, M. H., O’bryant, H. S., Proulx, C. M., & Johnson, R. L. (2000). Short-term performance effects of high power, high force, or combined weight-training methods. The Journal of Strength & Conditioning Research14(1), 14-20.

Hoffman, J. R., Cooper, J., Wendell, M., & Kang, J. (2004). Comparison of Olympic vs. traditional power lifting training programs in football players. The Journal of Strength & Conditioning Research18(1), 129-135.

Sheppard, J. M., Dingley, A. A., Janssen, I., Spratford, W., Chapman, D. W., & Newton, R. U. (2011). The effect of assisted jumping on vertical jump height in high-performance volleyball players. Journal of science and medicine in sport14(1), 85-89.