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Effects of explosive type strength training on physical performance characteristics in cross-country skiers

  • Leena Paavolainen
  • Keijo Häkkinen
  • Heikki Rusko
Article

Summary

To investigate the effects of a combination of simultaneous strength and endurance training on selected neuromuscular and aerobic performance characteristics seven male cross-country skiers underwent training for a period of 6 weeks. The experimental group trained 6–9 times per week with a programme consisting of 34% explosive type strength training and 66% endurance training during the first 3 weeks of the experiment and 42% and 58% respectively during the last 3 weeks of the experiment. The total volume of training of the control group (eight skiers) was of the same magnitude but consisted of 85% pure endurance training and 15% endurance type strength training. The experimental training regime resulted in specific changes in neuromuscular performance. This was demonstrated by improvements (P<0.01) in the maximal heights of rise of the centre of gravity in the squat and countermovement jumps. A significant decrease (P<0.05) took place also in the time of rapid isometric force production during experimental training, while no changes occurred in the maximal force of the trained muscles. Aerobic performance characteristics of the experimental group did not change during the experimental training period. No significant changes occurred in neuromuscular or aerobic performance characteristics in the control group. These findings indicated that training-induced improvements in explosive force production may not be fully inhibited by this kind of aerobic training. They also suggested that endurance athletes could undertake explosive type strength training programmes without a concomitant reduction in aerobic capacity, if the overall loading of training were within predefined limits.

Key words

Explosive type strength training Neuromuscular performance Aerobic capacity Endurance athletes 

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References

  1. Aunola S, Rusko H (1984) Reproducibility of aerobic and anaerobic thresholds in 20-50 year old men. Eur J Appl Physiol 53:260–266Google Scholar
  2. Bosco C (1980) Sei un grande atleta: vediauro cosa dice l'Ergo-jump. Pallavolo 5:34–36Google Scholar
  3. Dudley GA, Djamil R (1985) Incompatibility of endurance- and strength-training modes of exercise. J Appl Physiol 59:1446–1451Google Scholar
  4. Durnin J, Rahaman M (1967) The assessment of the amount of fat in the human body from the measurements of skinfold thickness. Br J Nutr 21:681–689Google Scholar
  5. Ekström H (1981) Force interplay in cross-country skiing. Scand J Sports Sci 3:69–76Google Scholar
  6. Häkkinen K (1989) Neuromuscular and hormonal adaptations during strength and power training. A review. J Sports Med 29:9–26Google Scholar
  7. Häkkinen K, Komi PV (1985) Effect of explosive type strength training on electromyographic and force production characteristics of leg extensor muscles during concentric and various stretch-shortening cycle exercises. Scand J Sports Sci 7:65–76Google Scholar
  8. Häkkinen K, Komi PV (1986) Training-induced changes in neuromuscular performance under voluntary and reflex conditions. Eur J Appl Physiol 55:147–155Google Scholar
  9. Häkkinen K, Viitasalo JT, Komi PV (1980) Die Wirkung unterschiedlich kombinierter konzentrischer and exzentrischer Muskelarbeit auf Kraft-Zeit-Merkmale der Beinstreckmuskulatur. Leistungssport 10:374–381Google Scholar
  10. Häkkinen K, Komi PV, Tesch P (1981) Effect of combined concentric and eccentric strength training and detraining on forcetime, muscle fibre, and metabolic characteristics of leg extensor muscles. Scand J Sports Sci 3:50–58Google Scholar
  11. Häkkinen K, Komi PV, Alen M (1985) Effect of explosive type strength training on isometric force- and relaxation time, electromyographic and muscle fibre characteristics of leg extensor muscles. Acta Physiol Scand 125:587–600Google Scholar
  12. Hickson R (1980) Interference of strength development by simultaneously training for strength and endurance. Eur J Appl Physiol 215:255–263Google Scholar
  13. Holloszy J, Coyle E (1984) Adaptations of skeletal muscle to endurance exercise and their metabolic consequences. J Appl Physiol 56:831–838Google Scholar
  14. Hunter G, Demment R, Miller D (1987) Development of strength and maximum oxygen uptake during simultaneous training for strength and endurance. J Sports Med 27:269–275Google Scholar
  15. Keul J, Dickhuth H-H, Lehmann M, Staiger J (1982) The athlete's heart — haemodynamics and structure. Int J Sports Med 3:33–43Google Scholar
  16. Komi PV (1973) Relationship between muscle tension, EMG and velocity of contraction under concentric and eccentric work. In: Desmdt JE (ed) New Developments in electromyography and clinical neurophysiology. Karger, Basel, pp 596–606Google Scholar
  17. Komi PV, Karlsson J, Tesch P, Suominen H, Heikkinen E (1982) Effect of heavy resistance and explosive type strength training methods on mechanical, functional and metabolic aspects of performance. In: Komi PV (ed) Exercise and sport biology. Human Kinetics, Champaign, Ill, pp 90–102Google Scholar
  18. Moritani T, DeVries HA (1979) Neural factors versus hypertrophy in the time course of muscle strength gain. Am J Phys Med 58:115–130Google Scholar
  19. Nelson A, Coulee R, Arnall D, Toy S, Silvester J (1984) Adaptations to simultaneous training for strength and endurance (abstract). Med Sci Sports 16:184Google Scholar
  20. Pierce JC, Pope MH, Renstrom P, Johnson RJ, Dufek J, Dillman C (1987) Force measurement in cross-country skiing. Int J Sport Biom 3:382–391Google Scholar
  21. Rusko H, Rahkila P (1983) Effect of training on aerobic capacity of female athletes differing in muscle fiber composition. J Sports Sci l:185–194Google Scholar
  22. Rusko H, Havu M, Karvinen E (1978) Aerobic performance capacity in athletes. Eur J Appl Physiol 38:151–159Google Scholar
  23. Rusko H, Rahkila P, Karvinen E (1980) Anaerobic threshold, skeletal muscle enzymes and tiber composition in young female cross-country skiers. Acta Physiol Scand 108:263–268Google Scholar
  24. Sale D (1988) Neural adaptation to resistance training. Med Sci Sports Exerc [Suppl] 20:135–145Google Scholar
  25. Saltin B, Åstrand P-O (1967) Maximal oxygen uptake in athletes. J Appl Physiol 23:353–358Google Scholar
  26. Viitasalo JT, Hakkinen K, Komi PV (1981) Isometric and dynamic force production and muscle fibre composition in man. J Hum Mov Stud 7:199–209Google Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Leena Paavolainen
    • 1
  • Keijo Häkkinen
    • 1
  • Heikki Rusko
    • 1
  1. 1.Department of Biology of Physical ActivityUniversity of JyvaskylaJyväskyläFinland

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