Effects of Fatigue Related to Uphill on Kick Double Pole Kinematics of Young Cross Country Skiers

Yıl 2017, Cilt: 5 Sayı: 4, 411 - 420, 17.12.2017

Mehmet Günay , Elif Öz İmdat Yarım , Ebru Çetin

Öz

The purpose of
this study was to examine the effect of fatigue due to uphill on the kick
double pole technique. Ten young male subjects volunteered to study. Subjects’
cross country sprint times were taken using a kick double pole technique with
maximum effort for 1 km in a climbing course with an average slope of 4%. In
accordance with these measured times, a separate average speed for each subject
was modified, and the subjects were tested on the treadmill at these specified
speeds, with the same duration, slope, and technique. Each participant was
asked to perform three trials with half an hour between them. Kinematic data
were obtained using a three-dimensional motion capture system (Vicon Peak,
Oxford, UK). Statistical analysis was performed by separating the variables
into 3 separate groups: a) periods of time b) distance data c) joint angles. In
conclusion, in kinematic data analyzed according to the fatigue of climb, there
was a significant difference between the duration of the poling times, duration
of the first cycles with the left leg propulsion and the last cycles, and the
duration of the first cycles with the right leg propulsion and left leg
propulsion. Significant differences were found in the hip, shoulder, elbow and
trunk angles. Significant differences were also found among all the identified
distances.

Anahtar Kelimeler

Cross country skiing, kinematics, simulated competition, sports biomechanics

Kaynakça

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