Laboratory Running Test vs. Field Roller Skiing Test in Cross-Country Skiers: A Longitudinal Study

Abstract

Laboratory treadmill running tests are commonly used to assess the effect of training programs and to prescribe training intensity for cross-country skiers. The present study compared the physiological parameters during a treadmill running (R) test and a field roller skiing (RS) test both at the beginning (Beg) and at the end (End) of a 6-month specific training program in seven competitive cross-country skiers. Oxygen uptake (V·O₂) and blood lactate concentration ([La]) were assessed for exercise intensity corresponding to 70 %, 80 %, 90 % of maximal heart rate (HR_max) and to HR_max. V·O₂ was lower for the RS test compared to the R test at any HR levels at Beg only (p < 0.05). Maximal V·O₂ increased from Beg to End for the RS test only (+ 23.7 ± 10.4; p < 0.05). [La] was lower for the R test compared to the RS test during both testing periods at 90 % HR_max (p < 0.05), and no significant modification in [La] from Beg to End at any HR levels was observed (p > 0.05). The [La]/V·O₂ curve shifted toward the right from Beg to End to a greater extent for the RS test compared to the R test. The present study emphasised the importance of exercise specificity in order to assess the effect of specific training program in competitive cross-country skiers.

Blood lactate - heart rate - oxygen uptake - training - exercise testing - cross-country skiing

References

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