Evaluation of an upper-body strength test for the cross-country skiing sprint

Thomas Stöggl, Stefan Lindinger, Erich Müller
Medicine and Science in Sports and Exercise 2007, 39 (7): 1160-9

PURPOSE: The scope of the study was (a) to develop a test concept for specific upper-body power and strength diagnostics of cross-country (XC) skiing sprint athletes, (b) to check test reliability and validity, and (c) to test the hypothesis that maximal power, explosive strength, and power-endurance predict double-poling (DP) sprint performance over race distance.

METHODS: Nineteen elite XC skiers performed test-retest of the two-phase test (2PT) on a rollerboard, with the four-repetition maximal test (4R(max)T) as phase 1 and the 40-repetition test (40RT) as phase 2, both for determination of specific upper-body power and explosive strength. To check validity, 31 subjects performed the 2PT and a DP sprint test for 50 m, and a subgroup (N = 19) also performed a DP maximal-speed test and a 1000-m DP sprint test, both on a treadmill.

RESULTS: The 4R(max)T was highly reliable (r = 0.90-0.99, P < 0.001), except for explosive force and time to peak force. The 40RT was highly reliable for all variables concerning velocity and power (r = 0.92-0.99, P < 0.001). Peak lactate showed only low reliability (r = 0.69, P < 0.01). The peak values (maximal power, peak velocity, etc.) measured in the 4R(max)T contributed to up to 84% of the variation in 50-m DP sprint time and up to 61% of the variation in 1000-m performance. Moderate to high correlations in 1000-m DP sprint performance were found between the mean values and the fatigue indices of the 40RT.

CONCLUSIONS: The 2PT is a reliable, valid, short-lasting test. The relationship between maximal power output (measured in the 4R(max)T) to 50- and 1000-m sprint performance suggests increasing the proportion of training aimed at the improvement of specific explosive strength and maximal power.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"