Abstract

We designed and patented an ergodinamometer to measure the useful strength of technical movements at badminton analyzing the service. To achieve this, we studied 10 badminton players of the national league (5 men and 5 women). Material and methods: We analyzed qualitatively and quantitatively the curves of strength-time and speed of the disk of our ergodinamometer and we compared the obtained results and the gender of the studied players. Results:  Men have values of maximal strength significantly bigger than women and also smaller acceleration times. Furthermore, men have remarkable larger angles of acceleration, bigger explosive strength, values of maximal speed of the disk slightly higher than women and also a peak of maximal speed lower than them. Conclusions: there are important differences in the useful strength used during service at badminton depending on the gender of the player.