Contribution of Upper-Body Strength, Body Composition, and Maximal Oxygen Uptake to Predict Double Poling Power and Overall Performance in Female Cross-Country Skiers
Sindre Østerås, Boye Welde, Jørgen Danielsen, Roland van den Tillaar, Gertjan Ettema, Øyvind Sandbakk
Journal of Strength and Conditioning Research 2016, 30 (9): 2557-64
Østerås, S, Welde, B, Danielsen, J, van den Tillaar, R, Ettema, G, and Sandbakk, Ø. Contribution of upper-body strength, body composition, and maximal oxygen uptake to predict double poling power and overall performance in female cross-country skiers. J Strength Cond Res 30(9): 2557-2564, 2016-Maximal oxygen uptake (V[Combining Dot Above]O2max) is regarded as the most performance-differentiating physiological measure in cross-country (XC) skiing. In addition, upper-body strength and lean mass have been associated with double poling (DP) power in XC skiers. In this study, we tested upper-body maximal strength, lean mass, and V[Combining Dot Above]O2max's contributions to predict DP power production of different durations and the overall XC skiing performance level of elite female XC skiers. Thirteen skiers (V[Combining Dot Above]O2max: 64.9 ± 4.2 ml·kg·min) performed one 30-second and one 3-minute DP performance test using a ski ergometer. The International Ski Federation's (FIS) ranking points determined their overall XC skiing performance. The skiers performed three 1-repetition maximal strength tests in poling-specific exercises that isolated the elbow extension, shoulder extension, and trunk flexion movements. Body composition was determined by a DXA scan, and V[Combining Dot Above]O2max was tested in an incremental running test. Multiple regressions were used to predict power production in the 30-second and 3-minute tests and FIS points. The 2 best predictions of 30-second DP power were lean upper-body mass and maximal upper-body strength (with the 3 strength tests normalized and pooled together as one variable) (R = 0.84 and 0.81, p < 0.001). Along with V[Combining Dot Above]O2max, the same 2 variables were the best predictions of both 3-minute DP power (R = 0.60 and 0.44, p ≤ 0.05) and overall XC skiing performance (R = 0.43 and 0.40, p ≤ 0.05). Although the importance of upper-body strength and lean mass to predict DP power production and the overall XC skiing performance declines with the performance duration in female XC skiers, the importance of V[Combining Dot Above]O2max shows an opposite relationship.
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
Biomechanical analysis of double poling in elite cross-country skiers. Hans-Christer Holmberg, Stefan Lindinger, Thomas Stöggl, Erich Eitzlmair, Erich Müller Medicine and Science in Sports and Exercise 2005, 37 (5): 807-18
Gender differences in power production, energetic capacity and efficiency of elite cross‑country skiers during whole‑body, upper‑body, and arm poling. Ann Magdalen Hegge, Elias Bucher, Gertjan Ettema, Oliver Faude, Hans-Christer Holmberg, Øyvind Sandbakk European Journal of Applied Physiology 2016, 116 (2): 291-300
Determinants of a simulated cross-country skiing sprint competition using V2 skating technique on roller skis. Jussi Mikkola, Marko Laaksonen, Hans-Christer Holmberg, Ville Vesterinen, Ari Nummela Journal of Strength and Conditioning Research 2010, 24 (4): 920-8
Contribution of the legs to double-poling performance in elite cross-country skiers. Hans-Christer Holmberg, Stefan Lindinger, Thomas Stöggl, Glenn Björklund, Erich Müller Medicine and Science in Sports and Exercise 2006, 38 (10): 1853-60
Assessment of the reliability of a custom built Nordic Ski Ergometer for cross-country skiing power test. L Bortolan, B Pellegrini, G Finizia, F Schena Journal of Sports Medicine and Physical Fitness 2008, 48 (2): 177-82
Are gender differences in upper-body power generated by elite cross-country skiers augmented by increasing the intensity of exercise? Ann Magdalen Hegge, Kenneth Myhre, Boye Welde, Hans-Christer Holmberg, Øyvind Sandbakk PloS One 2015, 10 (5): e0127509
Evaluation of a specific test in cross-country skiing. E Mygind, B Larsson, T Klausen Journal of Sports Sciences 1991, 9 (3): 249-57
Evaluation of a new upper body ergometer for cross-country skiers. U Wisløff, J Helgerud Medicine and Science in Sports and Exercise 1998, 30 (8): 1314-20
Gender differences in endurance performance by elite cross-country skiers are influenced by the contribution from poling. Ø Sandbakk, G Ettema, H-C Holmberg Scandinavian Journal of Medicine & Science in Sports 2014, 24 (1): 28-33