Physiological differences between sprint- and distance-specialized cross-country skiers

Area of Science:

• Sports Science
• Exercise Physiology
• Biomechanics

Background:

• Cross-country skiing performance is influenced by both aerobic and anaerobic capacities.
• Sprint skiing, characterized by higher speeds, demands significant anaerobic contributions.
• Understanding anthropometric and physiological differences is key to optimizing training for elite skiers.

Purpose of the Study:

• To identify anthropometric and physiological differences between elite male sprint and distance cross-country skiers.
• To investigate the relationship between body mass and performance characteristics in these athletes.

Main Methods:

• Six elite male sprint skiers and 7 elite male distance skiers participated.
• Testing included submaximal oxygen cost and a 1000-meter time trial on a roller-ski treadmill using the V2 skating technique.
• Measurements assessed maximal oxygen uptake (VO2peak) and accumulated oxygen deficit (σO2).

Main Results:

• Sprint skiers exhibited a higher accumulated oxygen deficit and absolute VO2peak.
• Sprint skiers were significantly heavier, taller, and had a higher body mass index than distance skiers.
• VO2peak relative to body mass was lower in sprint skiers compared to distance skiers.

Conclusions:

• Elite male sprint skiers demonstrate distinct anthropometric and physiological profiles compared to distance skiers.
• These differences, particularly those related to body mass, are directly linked to the demands of sprint skiing.
• Findings highlight the importance of tailored training programs based on skiing discipline.