Leistungsdiagnostische Tests und Wettkampfprognose im Skilanglauf

The lower oxygen consumption during skating in comparison to Nordic skiing and the higher arm effort made new performance diagnostic tools necessary. The applicability of different sport specific and semi sport specific field tests was investigated for skating and roller-skiing for prediction of pėrformance in skating races. Incremental ski- and roller-ski-field tests for 4x3 km, maximal tests with either arm or leg work, a roller ski competition and a treadmill spiroergometry were performed in 11 junior top athletes for prediction of a 7,5 km Nordic ski race. Heart frequency, lactate and running speed were measured. A high metabolic load was found during the ski race with 11.2 mmol/1, the rollerski race with 9,7 mmol/1 and after treadmill ergometry with 9,3 mmol/1 lactate. The correlation of race speed to the speed during arm work on ski was 0.97, during speed at 4 mmol/1 lactate in ski field test 0.89 and at 3 mmol/1 lactate 0.86, to roller-ski speed 0.88, to roller ski speed at 3 mmol/1 lactate 0.87 and 0.85 at 4 mmol/1 and at maximum treadmill speed. Multiple regression analysis showed a good competition prediction from speed at arm work during ski, submaximal speed on ski and roller-ski and maximum treadmill speed. Maximum oxygen consumption yields small information for race prediction. Arm work should be emphasized during sport specific and semi sport specific training.