Beschreibung:
<jats:sec><jats:title>Purpose</jats:title><jats:p>The aim of the study is to present a new method for determining the efficiency of take-off during a 60-s Bosco repeated vertical jump test.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>The study involved 15 physical education students (age: 21.5 ± 2.4 years; height: 1.81 ± 0.08 m; mass: 76 ± 9 kg). The data were collected with the use of a pedobarographical system (Pedar-x; Novel, Munich, Germany). The statistical analysis utilized a simple linear regression model.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Owing to possible fatigue, flight time and flight height decreased. The average flight height was 0.260 ± 0.063 m, and the average contact time equalled 0.54 ± 0.16 s. The average anaerobic power values calculated for the 60-s work period had the mean value of 21.9 ± 6.7 W • kgBW<sup>–1</sup>; there was a statistically significant (<i>p</i> < 0.05) decrease in anaerobic power during the 60-s Bosco test.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>The efficiency of mechanical work was highest at the beginning of the test, reaching values of up to 50%. The efficiency of mechanical work conversion into mechanical energy seems to be an appropriate determinant of rising fatigue during the 60-s Bosco jumping test.</jats:p></jats:sec>