Biomechanical analysis of the "running" vs. "conventional" diagonal stride uphill techniques as performed by elite cross-country skiers.

ABSTRACT:

Purpose

This study aimed to compare biomechanical aspects of a novel "running" diagonal stride (DS_RUN) with "conventional" diagonal stride (DS_CONV) skiing techniques performed at high speed.

Methods

Ten elite Italian male junior cross-country skiers skied on a treadmill at 10 km/h and at a 10° incline utilizing both variants of the diagonal stride technique. The 3-dimensional kinematics of the body, poles, and roller skis; the force exerted through the poles and foot plantar surfaces; and the angular motion of the leg joints were determined.

Results

Compared to DS_CONV, DS_RUN demonstrated shorter cycle times (1.05 ± 0.05 s vs. 0.75 ± 0.03 s (mean ± SD), p < 0.001) due to a shorter rolling phase (0.40 ± 0.04 s vs. 0.09 ± 0.04

SUBMITTER: Pellegrini B 

PROVIDER: S-EPMC8847964 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature