Effects of ethnicity on the relationship between vertical jump and maximal power on a cycle ergometer

Abstract

The aim of this study was to verify the impact of ethnicity on the maximal power-vertical jump relationship. Thirty-one healthy males, sixteen Caucasian (age: 26.3 ± 3.5 years; body height: 179.1 ± 5.5 cm; body mass: 78.1 ± 9.8 kg) and fifteen Afro-Caribbean (age: 24.4 ±2.6 years; body height: 178.9 ± 5.5 cm; body mass: 77.1 ± 10.3 kg) completed three sessions during which vertical jump height and maximal power of lower limbs were measured. The results showed that the values of vertical jump height and maximal power were higher for Afro-Caribbean participants (62.92 ± 6.7 cm and 14.70 ± 1.75 W∙kg-1) than for Caucasian ones (52.92 ± 4.4 cm and 12.75 ± 1.36 W∙kg-1). Moreover, very high reliability indices were obtained on vertical jump (e.g. 0.95 < ICC < 0.98) and maximal power performance (e.g. 0.75 < ICC < 0.97). However, multiple linear regression analysis showed that, for a given value of maximal power, the Afro-Caribbean participants jumped 8 cm higher than the Caucasians. Together, these results confirmed that ethnicity impacted the maximal power-vertical jump relationship over three sessions. In the current context of cultural diversity, the use of vertical jump performance as a predictor of muscular power should be considered with caution when dealing with populations of different ethnic origins.

Agreeement Between Measurement of Jump Height in Different Vertical Jump Tests Executed by Young Football Players

“…It is known that explosive power is related to the maximal speed and acceleration capability (Nordin et al, 2014;Peev, 2014;McFarland et al, 2016;Rouis et al, 2016). At the same time, a great number of sport professionals specify the quantitative values of explosive power as a method for control, selection and prediction of capabilities of the young players (Klavora, 2000;Markovic et al, 2004;Cunha et al, 2017).…”

Analysis on the characteristics and relationships of lower limbs strength and power of sailors in different positions and levels

“…The CMJ test is common in physical education and sports training, as a means to assess lower limbs power and neuromuscular function. There was positive correlation between CMJ height with the knee extensor PT, individuals with higher lower limbs strength level have higher peak power when performing various jumping movements were reported by Uslu et al [35,36]. However, we failed to arrive at similar results, the parameters of CMJ have no difference in hikers and trapeze sailors, as well as high-level and low-level groups.…”

“…During the SSC the athlete commences a counter movement by first relaxing the agonist muscles, the quadriceps muscle is stretched eccentrically, which results in enhanced force production during the subsequent concentric phase [37]. Some studies have examined that the jump performance-isokinetic knee extensor muscles strength relationship depended on the angular velocity, with no or low correlation at slow angular velocities (lower than 180˚/s) and a moderate-high correlation at fast angular velocities [36]. Malliou and Ispirlidis stated that there was a significant correlation between the knee extensor PT at 60˚/s and CMJ height for professional soccer players after the completion of the competition and preparation period (r ranging 0.430-0.587) [38].…”

Anaerobic Power Assessment in Athletes: Are Cycling and Vertical Jump Tests Interchangeable?

“…First, this study confirmed a strong relationship between jumping power and sprint cycling power in the current cohort of strength-trained ski cross racers. Whereas previous studies have shown similar relationships, usually using jump height rather than power, in untrained subjects [46], strength-trained non-cyclists [19,24,25,38,56], and strength-trained cyclist [27], this is one of few studies [45,47] to have directly compared mechanical power from both test forms. Thus, the close relationship between the two types of power measures seems to be fairly universal.…”

“…Although both cycling sprint and vertical jump tests are valid and well-established methods for assessing anaerobic power, they obviously differ considerably, particularly in their respective movement patterns (unilateral versus bilateral, and cyclic versus acyclic) and test durations (several seconds versus less than one second). Whereas several previous studies have addressed correlations between anaerobic cycling power and vertical jump height [19,24,25,38,45,46], the aforementioned evolution of methodology and consciousness make power-to-power the more obvious, and thus the more relevant comparison, today than was perhaps the case years ago. However, due to a surprising sparsity of published research on this topic [45,47], it remains unclear how well the power measurements from both tests-and more importantly with regards to performance testing, changes in these-correlate with one another.…”