A case study of the training to improve a ski jump performance for a female ski jumper

Abstract

　This is a case study on training in the off-season to improve the jumping performance of female ski jumper who got six times of victory. Testing included vertical jump without counter movement (SJ), vertical jump with counter movement (CMJ), and vertical jump with counter movement and swinging motion of arms (ACMJ). In the case, SJ was added to the weight training and jumping training program, and CMJ and ACMJ were instructed not to be performed.

　As a result, SJ showed significant improvement. (SJ: 10.2%, CMJ: 3.7%, ACMJ: 0.3%). The ratios of SJ to CMJ (SJ / CMJ) and SJ to ACMJ (SJ / ACMJ) were close to 100% after training.

　These results suggest that it was inferred that superior SJ jumping abilities is important for ski jumpers.