KINETIC ANALYSIS OF THE V2 SKATING TECHNIQUE ON ROLLER SKIS

The purpose of this investigation was to determine the kinetic poling patterns of elite level cross-country skiers performing the V2 skating technique on roller skis. Five male United States Biathlon Developmental Team members from the Olympic Education Center in Marquette, Michigan, volunteered as subjects for this investigation. Subjects performed three paced roller ski trials using the V2 skating technique at 4.7 m/s , 5.8m/s, and 6.7m/s, which represented slow, race, and sprinting paces, respectfully. Piezoelectric load cells mounted within the shaft of each ski pole were used to determine axial poling forces for each trial. Raw voltage signals from the conditioned load cells were stored in a specially designed portable data logger with programmable capabilities. After each trial, data files were downloaded to an on-site microcomputer and stored in binary format. The binary data files were fbrther processed and used to determine cycle duration (CD), cycle impulse (CI), average cycle force (CF), and peak cycle force (PF). Values from each variable were averaged over two consecutive poling cycles and compared for statistical significance with one-way repeated measures ANOVA. Mean values are summarized below. . For the three velocities examined, CD was the only observed variable found to be statistically different (