Kinematical analysis of the V2 ski skating technique: A longitudinal study

Area of Science:

• Sports Science
• Biomechanics
• Cross-Country Skiing

Background:

• The V2 technique is a fundamental cross-country ski skating method.
• Understanding movement timing and technique alterations is crucial for optimizing performance.

Purpose of the Study:

• To characterize movement timing in V2 ski skating.
• To evaluate the performance effects of technique alterations in elite male cross-country skiers.

Main Methods:

• 13 elite male cross-country skiers performed tests on a roller ski treadmill.
• Oxygen cost was determined at submaximal intensities, followed by a 1000-m performance test.
• Hip movement and joint angles were analyzed during high-intensity exercise.

Main Results:

• Reduced vertical hip acceleration and increased cycle time were associated with a small, likely reduction in oxygen cost.
• These technique alterations also showed a small, likely reduction in 1000-m time.
• Hip flexion/extension initiated all phases of the ski thrust.

Conclusions:

• Well-developed hip movement is a key characteristic for elite V2 ski skating performance.
• Technique alterations focusing on hip movement can enhance long-term performance development in skiers.